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Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: PeterXu on September 25, 2024, 05:32:58 AM

Title: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 25, 2024, 05:32:58 AM
Xiamen Carbon Speed 10 years anniversary road/gravel rims and wheelsets promotion

Sale lasts Sep 24 - Dec 24!
Promotion details: Rims or wheelsets built with our 21 ID 28OD regular/wavy, 26 ID 33 OD, 28ID 36 OD
Lead time:
Rims:   5-15 days before shipping (Longer lead time on customized rims like no assembly holes in rim bead or butterfly weave/marble weave or custom painting)
Wheelset: 7 - 20 days before shipping.

For this promotion these wheelsets are priced $380-$1200 USD based on options you choose! Low price ones built with normal rims, normal in-house hubs and Pillar 1423 spokes. High pricing ones built with Extralite hubs and Sapim CX-Ray spokes
Our pricing varies depending on many factors and is constantly evolving, but QUALITY and SERVICE are the most important as always , and we offer wheelsets at almost price points. We can provide an indicative quote very quickly via WhatsApp or email, so please don't hesitate to get in touch.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ausmtb8989 on September 25, 2024, 06:35:29 AM
whats the promotion?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on September 25, 2024, 06:41:14 AM
What kind of spokes and hubs do you build with
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 25, 2024, 06:59:26 AM
whats the promotion?
Better price than normal time :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 25, 2024, 07:02:40 AM
Better price than normal time :)
Our custom boomproof hubs, Novatec D411/D412 hubs, DT Swiss 350/240 hubs
Custom light weight stainless spokes similar weight as Pillar 1420/Sapim CX-Ray, carbon spokes exactly  same as some big brands use, Pillar 1423/wing 20/ 1420 spokes, Sapim RACE/CX-Delta/CX-Ray spokes etc.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: kubackje on September 25, 2024, 07:49:22 AM
Our custom boomproof hubs, Novatec D411/D412 hubs, DT Swiss 350/240 hubs
Custom light weight stainless spokes similar weight as Pillar 1420/Sapim CX-Ray, carbon spokes exactly  same as some big brands use, Pillar 1423/wing 20/ 1420 spokes, Sapim RACE/CX-Delta/CX-Ray spokes etc.

Some more info about your "bulletproof" custom hubs. Version for steel and for carbon spokes.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 25, 2024, 08:04:44 AM
Some more info about your "bulletproof" custom hubs. Version for steel and for carbon spokes.
Sorry. I can't send too much information such as drawing on the hubs here, 6 bearings,  2 front and 4 rear, normal bearings made in China/TPI /NBK/ S&S steel bearings, TPI/NBK/S&S ceramic bearings optional, normally we use TPI or S&S ceramic bearings. The carbon spokes we use are exactly same as some big brands use to build on their wheelsets.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bowen1911 on September 25, 2024, 11:45:28 AM
I'm interested in a set of the CS-D50CU-28WV rims on DT240 hubs, CX-Ray spokes.  Feel free to shoot me a message
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: coffeebreak on September 25, 2024, 11:48:50 AM
Can D50CU-28 be made in rim brake version, 9x100 front 10x135 rear Bitex hubs, bladed spokes -
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on September 25, 2024, 02:22:59 PM
I assume the carbon spokes are STREN? How wide and thick are they? How do they lock into the hub? Threaded like CRW and Newmen, straightpull through the hub like dt swiss hubs, or inserted from the side like Winspace, Elite, Cadex, etc.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 26, 2024, 12:14:07 AM
I'm interested in a set of the CS-D50CU-28WV rims on DT240 hubs, CX-Ray spokes.  Feel free to shoot me a message
PM sent
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 26, 2024, 12:28:56 AM
I assume the carbon spokes are STREN? How wide and thick are they? How do they lock into the hub? Threaded like CRW and Newmen, straightpull through the hub like dt swiss hubs, or inserted from the side like Winspace, Elite, Cadex, etc.

Yes, they are STREN.

Inserted from the side like Wingspace, CADEX.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on September 26, 2024, 03:53:16 AM
Yes, they are STREN.

Inserted from the side like Wingspace, CADEX.

have you some photos of eagle wing pattern?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 26, 2024, 04:08:17 AM
Can D50CU-28 be made in rim brake version, 9x100 front 10x135 rear Bitex hubs, bladed spokes -

Yes, for now we have Bitex RAF10/RAR9 super light hubs with ceramic bearings rim brake hubs available in stock . We can build the D50CU-28 rim brake version with these hubs and Sapim CX-Ray spokes or Pillar 1420 spokes.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 26, 2024, 04:17:11 AM
have you some photos of eagle wing pattern?
Just sent to your email, I am not able to upload the pictures for now, not sure why.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on September 26, 2024, 04:34:54 AM
here the pics
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: RoadieMKD on September 26, 2024, 05:05:21 AM
Just sent to your email, I am not able to upload the pictures for now, not sure why.
I had the same issue before; the pictures were too large. You need to resize them and save for web use. You can easily do this with online converter, same format just save for web and that will reduce the size in MB. After that you can upload the pictures.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: coffeebreak on September 26, 2024, 01:27:37 PM
here the pics

Thanks. I was wondering what that pattern entails. No offence to you or Peter but holy sh*t this looks hideous. Think I am gonna stick to non eagle wing pattern wheels.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 26, 2024, 09:56:58 PM
Thanks. I was wondering what that pattern entails. No offence to you or Peter but holy sh*t this looks hideous. Think I am gonna stick to non eagle wing pattern wheels.

Indeed, that doesn't make any sense, why we did that is some clients want different looking from others. And to my factory, we can register some appearance patent, we might get some favorable policy if we get more and more patents here in China.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PineappleExpress234 on September 27, 2024, 02:54:38 AM
I understand you mainly sell wheels, but do you sell carbon TT bars as well?

Thanks
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on September 27, 2024, 05:01:21 AM
Jeeez, this pattern is indeed atrocious! that's funny! And slower, too, for good measure. And heavier. I love it. Worse in every way.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on September 27, 2024, 06:45:04 AM
I understand you mainly sell wheels, but do you sell carbon TT bars as well?

Thanks
Yes, we do. Could you send me an email on this ? I can't upload any size pictures here for now, damn.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: bremerradkurier on September 27, 2024, 09:24:02 AM
The eagle wing pattern looks like something the cycling crazy president of Turkmenistan would request.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: SirBikealot on September 27, 2024, 09:37:12 AM
The eagle wing pattern looks like something the cycling crazy president of Turkmenistan would request.
nah, it's perfect for everone who has a super record wireless and thinks the price is reasonable  ;D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: kubackje on September 27, 2024, 01:26:22 PM
nah, it's perfect for everone who has a super record wireless and thinks the price is reasonable  ;D
Hahahah good one
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: pavlo.k on September 28, 2024, 05:46:29 AM
Ordered a pair of 65mm wheels for a future aero build. 26mm internal width look interesting. One of the few I've seen offered in 50 and 65mm depth. Peter offerd a "paint-less" finish which I didn't know was a thing. Anyone has any experience?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: bremerradkurier on September 28, 2024, 11:38:33 AM
Used 25mm MucOff tape on my CS 26mm IW wheels which allowed tool free installation for Schwalbe Pro One tires that hold pressure very well after seating with compressed air.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PoulB88 on September 30, 2024, 03:41:13 AM
Ordered a pair of 65mm wheels for a future aero build. 26mm internal width look interesting. One of the few I've seen offered in 50 and 65mm depth. Peter offerd a "paint-less" finish which I didn't know was a thing. Anyone has any experience?

Very interested in hearing more about this. How are you having the wheels built? What tires are you going to use?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on September 30, 2024, 04:26:59 AM
Ordered a pair of 65mm wheels for a future aero build. 26mm internal width look interesting. One of the few I've seen offered in 50 and 65mm depth. Peter offerd a "paint-less" finish which I didn't know was a thing. Anyone has any experience?

If it's experience with Peter, i bought 5 wheelsets from him. We're all very happy with them, been flawless. they're on my tractor, so i ride mine several times per week.
In terms of finish, matte black is the default finish, and the lightest. i guess this no paint finish here might save a few more grams? But in general, you dont want gloss, nor funky carbon patterns because gloss is heavier, and fancy carbon patterns are just there to look fancy, so it just adds weight.
Looks cool. Next time i order wheels i'll ask the question.

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on October 06, 2024, 08:54:36 PM
Hello, I am interested in CS-D50CU-33 wheelset. 

-Where can I learn more about availability of hub & spoke options?  Probably DT240 & CX-Ray but would like to understand pricing for other options.
-Interested in your spoke drill & assembly QA/tolerances and lacing also.  (e.g. CNC drilled?)
-Also interested in surface finish options - would ideally like satin and unpainted ("paint-less") depending on the carbon finish but can also do matte black.
-Interested in pricing and assembled mass/weight.

Thank you in advance!

P.S. I'm motivated to upgrade my wheels but I'm also new here - if someone sees an opportunity to educate me or suggest better choices I'd appreciate it.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 06, 2024, 11:52:47 PM
Hello, I am interested in CS-D50CU-33 wheelset. 

-Where can I learn more about availability of hub & spoke options?  Probably DT240 & CX-Ray but would like to understand pricing for other options.
-Interested in your spoke drill & assembly QA/tolerances and lacing also.  (e.g. CNC drilled?)
-Also interested in surface finish options - would ideally like satin and unpainted ("paint-less") depending on the carbon finish but can also do matte black.
-Interested in pricing and assembled mass/weight.

Thank you in advance!

P.S. I'm motivated to upgrade my wheels but I'm also new here - if someone sees an opportunity to educate me or suggest better choices I'd appreciate it.
Thanks for your inquiry. I think I should just have replied your message on WhatsApp.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: pavlo.k on October 07, 2024, 02:54:14 AM
Very interested in hearing more about this. How are you having the wheels built? What tires are you going to use?
I went for their own in-house hubs and pillar 1420 spokes. According to Peter they should come up at around 1520g which is not the lightest but considering the price, depth, and width of the rims, I think it's excellent.
I'm planning to use 30c tires which will probably end up much wider
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: fhold on October 07, 2024, 04:47:26 AM
I just ordered a pair of wheels from peter with the following specs:

D40CU-33 rims T800 version 24/24H UD Matt with assembly holes in the rim bead.
Carbon Speed custom hubs 36T rachets center lock straight pull for 100*12/142*12 with Shimano driver
Pillar 1420 spokes
Pillar aluminum nipples

Will report back when i receive them.

Until now it was a great pleasure communicating with peter. Fast, friendly and very responsive.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Macedingle on October 07, 2024, 06:13:10 AM
I just ordered a pair of wheels from peter with the following specs:

D40CU-33 rims T800 version 24/24H UD Matt with assembly holes in the rim bead.
Carbon Speed custom hubs 36T rachets center lock straight pull for 100*12/142*12 with Shimano driver
Pillar 1420 spokes
Pillar aluminum nipples

How much did you pay for them? Not sure why pricing on these is so opaque.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on October 07, 2024, 06:52:54 AM
How much did you pay for them? Not sure why pricing on these is so opaque.

to be fair it's very easy to get quotes from Peter, but typically a wheelset with house hubs and steel spokes will be in the 500$ range, and with carbon spokes in the 700 range. If you want branded hubs it adds to the cost. But i agree it wouldnt hurt to know about pricing when people post their builds.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: fhold on October 07, 2024, 07:47:30 AM
How much did you pay for them? Not sure why pricing on these is so opaque.

With the 10 year discount action I paid 435 USD/pair plus 110 USD shipping incl. prepaid taxes, so 545 USD in total.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Macedingle on October 07, 2024, 09:36:46 AM
to be fair it's very easy to get quotes from Peter, but typically a wheelset with house hubs and steel spokes will be in the 500$ range, and with carbon spokes in the 700 range. If you want branded hubs it adds to the cost. But i agree it wouldnt hurt to know about pricing when people post their builds.

I understand that it’s really easy to get quotes from Peter, but that immediately removes the pricing from public and put it into a private conversation. I think the better way for him to go about this is when Peter makes the post he should list the cheapest build cost and the most expensive build cost so people can at least see the price range for his products. If he was more upfront about pricing by putting a price range instead of saying email me or WhatsApp me, I think it would drive more interest because consumers could see on the front end what they might pay.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: coffeebreak on October 07, 2024, 03:55:05 PM
I understand that it’s really easy to get quotes from Peter, but that immediately removes the pricing from public and put it into a private conversation. I think the better way for him to go about this is when Peter makes the post he should list the cheapest build cost and the most expensive build cost so people can at least see the price range for his products. If he was more upfront about pricing by putting a price range instead of saying email me or WhatsApp me, I think it would drive more interest because consumers could see on the front end what they might pay.

I agree. Also judging by what has been mentioned, are those prices really good v/s what you can do on Aliexpress with brands like Go-zone, CSC, Elite and many others? I guess I'm trying to understand the hassle of chatting on WhatsApp or email and placing an order when you can get 1300 grams 50mm deep wheelsets for same price on Aliexpress sometimes with free shipping even.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 07, 2024, 07:59:43 PM
Thank you guys for your suggestions. Why I didn't want to list pricing here when I created this thread there are quite a few some other Chinese companies posting and viewing every day here on this public forum. And people are looking for different options.

I modified my 1st post with price range just now. However we don't sell anything on Aliexpress, we don't think it is worthy of time to explain quality or price difference between our products and theirs, for example, many guys mistake our company for CSC(Carbon Speed Cycle), that causes we need to say full company name to others every time,  and some sellers on Aliexpress they are just resellers without bottom line and they don't keep their words to offer after-sale service but they would decrease their pricing again and again to sell items. I am not saying all sellers or stuff on Aliexpress are not good, just saying that we don't want to sell products there. As manufacturer we attend to the bicycle fair like Interbike or Eurobike show so we got numbers of OEM clients to cooperate with, some of them are name brands. Our pricing varies depending on many factors and is constantly evolving, but QUALITY and SERVICE are the most important as always , old members here know our company very well, and we offer wheelsets at almost price points. We can provide an indicative quote very quickly via WhatsApp or email, so please don't hesitate to get in touch. Thank you guys.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on October 08, 2024, 04:41:11 AM
I'm intereset in the 33mm wide rims.

Does anybody know how a 30mm GP5000 will sit with these 26mm inner width rims? Will it be around 33mm?

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Macedingle on October 08, 2024, 03:55:53 PM
Just wanted to follow up and say I had a really great conversation with Peter about how going forward he can share a little bit more pricing in his posts so we as consumers can more easily make purchasing decisions. After my conversation with him, I do believe he probably has some of the best customer service of all the vendors on this forum and in the future, my next pair of wheels will be purchased from him.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Lumenir on October 09, 2024, 01:13:37 AM
I'm intereset in the 33mm wide rims.

Does anybody know how a 30mm GP5000 will sit with these 26mm inner width rims? Will it be around 33mm?

I just received my wheels, and put gp 5000 s tr 30 on them, and they sit really in line with the rim.
I can provide measurements and pic tonight(~8h)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on October 09, 2024, 03:28:36 AM
I just received my wheels, and put gp 5000 s tr 30 on them, and they sit really in line with the rim.
I can provide measurements and pic tonight(~8h)

That would be great, thanks!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Aradell on October 09, 2024, 08:35:14 AM
I just received my wheels, and put gp 5000 s tr 30 on them, and they sit really in line with the rim.
I can provide measurements and pic tonight(~8h)

Really interested in this exact combo as well!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Lumenir on October 09, 2024, 01:54:49 PM
Okay so as promised, pic of wheels with also a short review.
I bought the wheels because of Serge's propaganda
I haven't tried them yet bc I'm still missing some parts (aliexpress in france sucks)

Wheels are carbon speed own hub, looks like every other ratchet hub, 1420 pillar spokes, and 50x33 rim

weight is 1371g. Note that rim tape and valves are not included.
GP 5K S TR 30 are 33mm wide, so they fit perfectly, and follow the rim nicely.

Hub is really loud, but I feel like there is also no grease, so I bought dt swiss ratchet grease to try.

Decals cost 30 euros, thanks to a price reduction from Peter.

Bought them 23/08, arrived  27/09.

Buying experience was really nice, peter was really helpful, and gave me advices on what to buy. He also made the decals himself based on a bad photoshop that I did.

I will make another review once I've done around 200km with them

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: 95s10nj on October 09, 2024, 02:56:58 PM
I recently came across this post when searching for some gravel wheels and decided to email Peter. Gave him an idea of what I wanted and he emailed me back within a few days with some different options for a custom build. Went with the 40mm deep 26mm inner and 34mm outer, model no. CS-D40CU-33 built with house hubs (ratchet style), 24 Sapim cx-ray spokes and Shimano freehub. Went with no holes in the rim bed for easy tubeless setup and was looking for a sub 1400 gram wheelset. Within about 10 days I received pics of the hoops along with their weight, and within 14 days received pics of the final build along with actual weight of 1349 grams. Received the wheels about 2 weeks later so about a month from the initial order being placed. Setup went easy and I really put them through hell last week on a gravel ride in Vermont and they're still spinning true. Very happy with the purchase and communication from Peter throughout the process. Highly recommended.
(https://i.postimg.cc/m2sPHG15/Scott-Addict-Gravel-2.jpg) (https://postimg.cc/bdmy7WTx)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: sendmeurbrokenbikes on October 09, 2024, 09:16:38 PM
That's looking real nice! Lovin' that gravel ride and look. I can't tell with your attached image, but with the 34mm outer width of the rim, what width tire did you put on? I see it's Schwalbe G-ONE branded, but can't tell from the markings your chosen width. And how did it feel at that width?



I recently came across this post when searching for some gravel wheels and decided to email Peter. Gave him an idea of what I wanted and he emailed me back within a few days with some different options for a custom build. Went with the 40mm deep 26mm inner and 34mm outer, model no. CS-D40CU-33 built with house hubs (ratchet style), 24 Sapim cx-ray spokes and Shimano freehub. Went with no holes in the rim bed for easy tubeless setup and was looking for a sub 1400 gram wheelset. Within about 10 days I received pics of the hoops along with their weight, and within 14 days received pics of the final build along with actual weight of 1349 grams. Received the wheels about 2 weeks later so about a month from the initial order being placed. Setup went easy and I really put them through hell last week on a gravel ride in Vermont and they're still spinning true. Very happy with the purchase and communication from Peter throughout the process. Highly recommended.
(https://i.postimg.cc/m2sPHG15/Scott-Addict-Gravel-2.jpg) (https://postimg.cc/bdmy7WTx)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: 95s10nj on October 10, 2024, 08:06:35 AM
That's looking real nice! Lovin' that gravel ride and look. I can't tell with your attached image, but with the 34mm outer width of the rim, what width tire did you put on? I see it's Schwalbe G-ONE branded, but can't tell from the markings your chosen width. And how did it feel at that width?

The tires are still the stock Schwalbe G-One Bites in 45c that came on the bike. I was running 35psi in the stock wheels for pavement rides and 30psi offroad. These wheels are definitely firmer at the same pressure so I need to play around with lower pressures. The tires are ok offroad but I'd like to switch to something like a 42 pathfinder or 45 g-one rs for a little more speed on the road. In my area I end up covering a lot of road between gravel/dirt sections and I'll likely be using this as my road bike this winter.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: pavlo.k on October 16, 2024, 04:45:25 AM
Just received pictures of my wheelset from Peter. Turned out lighter than expected. Paintless finish looks sick
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on October 16, 2024, 04:53:13 AM
I asked for a quote for a wheelset to compare to the lightbicycle falcon pro turbo wheelset.

I'm torn whether i want some dt wiss 240 or knock off hubs. Are the xmcs in house hubs compatible with dt swiss replacement parts? I would hate to have to realce a new hub, if anything fails.

Edit: Already got a reply from Peter and all i can say is wow, that is some value offered, i will glady chose xiamencarbonspeed.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: pavlo.k on October 16, 2024, 06:30:39 AM
I asked for a quote for a wheelset to compare to the lightbicycle falcon pro turbo wheelset.

I'm torn whether i want some dt wiss 240 or knock off hubs. Are the xmcs in house hubs compatible with dt swiss replacement parts? I would hate to have to realce a new hub, if anything fails.

Edit: Already got a reply from Peter and all i can say is wow, that is some value offered, i will glady chose xiamencarbonspeed.
I own a couple of noname Chinese hubs. A set from lightcarbon and r13 from Yuanan. you can use regular ratchet kits from aliexpress or dt swiss, they work perfectly fine. bearings are standard 6902, 6802. My only concern is trying to find a compatible freehub body if you need one
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PoulB88 on October 17, 2024, 02:00:10 AM
Just received pictures of my wheelset from Peter. Turned out lighter than expected. Paintless finish looks sick

Did you consider carbon spokes for these wheels?

Also, does anyone know how the aerodynamics are affected by conventional steel, or carbon spokes? Bladed in either case, of course, and I realise there are a lot of different carbon spokes.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: pavlo.k on October 17, 2024, 02:36:38 AM
Did you consider carbon spokes for these wheels?

Also, does anyone know how the aerodynamics are affected by conventional steel, or carbon spokes? Bladed in either case, of course, and I realise there are a lot of different carbon spokes.

I didn't. There's no benefit for me from going with carbon spokes. Maybe a few grams here and there but steel spoke wheels are much easier to service. I can replace the spokes or hubs at any time without any problems. If I break a carbon spoke I have to order it from China. Carbon spokes require a different hub as well, which I doubt you can source easily.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PoulB88 on October 17, 2024, 03:53:12 AM
I didn't. There's no benefit for me from going with carbon spokes. Maybe a few grams here and there but steel spoke wheels are much easier to service. I can replace the spokes or hubs at any time without any problems. If I break a carbon spoke I have to order it from China. Carbon spokes require a different hub as well, which I doubt you can source easily.

Thanks, I do think you can use some carbon spokes with standard hubs but I may be mistaking.
In any case I hope you get to test the wheels out and report back, I might copy the setup for my Venge (2020 model).
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on October 17, 2024, 04:07:22 AM
Thanks, I do think you can use some carbon spokes with standard hubs but I may be mistaking.
In any case I hope you get to test the wheels out and report back, I might copy the setup for my Venge (2020 model).

it will depend on spokes and hubs.
My friend crashed one of Peter's wheels, and broke 4 steel (Pillar wing 20) spokes. I didn't have enough spares to repair it (from memory, the wheelset uses 3 different lengths, so the moment you break more than 1, the probability you have inventory goes down dramatically), and good luck sourcing these spokes outside of china at a good price. I guess i should have called wheel builders, now that i think of it, but even then, i bought rims without holes in the rim bed for easier tubeless setup and maximum strength, and i didn't want to spend 1 day repairing it. So, i bought a replacement wheel from Peter, ordered the missing spokes from him, and my friend got the 1st wheel repaired by his LBS, so now he can happily crash again and already has a spare :D
So... if the hub isn't some weird ass bonded thing, and if you have spare carbon spokes of the right length, i dont think it makes a huge difference in terms of repair-ability.
One key difference is stiffness though, if you run a beefy aero bike, with carbon spoked wheels, with 25mm tyres at 110psi, on bad tarmac, wear a mouth guard as your teeth will rattle. If you run wide tyres, tubeless, then if you ride on good enough roads, carbon spokes are probably a good idea if you care about performance. The price difference is decreasing, Peter typically quotes a good set of steel spoked wheels for ~500 and ~700 for carbon, so given that everything is expensive now, 200 bucks amortized over the life span of your bike, if not 2 or 3 bikes, seems pretty reasonable.
I wonder if aliexpress sells spare spokes. i dont think i looked there either, now that i think of it. it'd make a ton of sense, they have such good agreements with shipping companies that you could probably source spares on demand easily. Aliexpress, now that it works flawlessly, pretty much, has transformed the way i source and build bikes. Can't understate the convenience of ordering exactly what you need when you need it, as opposed to over ordering stuff from china (Alibaba & the likes) and shipping large boxes.

As to ride quality, i've bought 5 wheelsets from him, and we're all happy with them. A whole season on them, no issues. Peter seems to be very reliable OEM, and also, wheels are now so commoditized that as long as you order the right stuff from a reputable seller, i really dont see why you'd be disappointed. Peter lets you custom build anything, his pricing is competitive, and he doesnt force you to put logos on the wheels. For example, certain models from Elite are nice (although mostly their rims are too narrow), but i refuse to have my bikes look like Xmas trees covered in logos, unless they pay me, i'm not showing their logo.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on October 17, 2024, 07:34:12 AM
Did you consider carbon spokes for these wheels?

Also, does anyone know how the aerodynamics are affected by conventional steel, or carbon spokes? Bladed in either case, of course, and I realise there are a lot of different carbon spokes.

Here are most of the basics

https://wheellabkr.imweb.me/Blog
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 19, 2024, 02:25:23 AM
Guys. We are going to release our T1100 rims next week. The rim in attached pictures is D50CU-33 T1100 rim UD paintless finish, under 390g/piece.

We are going to build these rims with carbon spokes and our hubs. The promotion price for below combo wheels would be 635 USD/pair excluding shipping, lasts Dec 24 :
D50CU-33 T1100 rims 21/21H UD paintless
Carbon Speed hubs 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver
Carbon spokes with nipples

The weight for this combo wheelset would be around 1245g/pair

And we are doing 20/20H version lighter hubs which won't be released until 2025, it will save another 40-45g on the wheels by then.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on October 19, 2024, 02:52:44 AM
I might be interested in the lighter hubs version 65mm deep. Do you know yet roughly in which part of 2025 it might be?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 19, 2024, 02:58:55 AM
I might be interested in the lighter hubs version 65mm deep. Do you know yet roughly in which part of 2025 it might be?
Early 2025, likely Jan or Feb.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sakizashi on October 19, 2024, 01:18:24 PM
Early 2025, likely Jan or Feb.

I am also looking for wheels right now, and depending on the design, these may also interest me. Do you have a rim weight for the 65mm deep T1100 rims?

Regarding hubs, do you build with 0011 / THR Industries RX hubs or R3 road hubs? With CX-Rays Super or Alpina Hyperlight Aero spokes, these appear to be built wheels lighter than most carbon-spoked wheels.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sebastian on October 19, 2024, 01:45:13 PM
it will depend on spokes and hubs.
My friend crashed one of Peter's wheels, and broke 4 steel (Pillar wing 20) spokes. I didn't have enough spares to repair it (from memory, the wheelset uses 3 different lengths, so the moment you break more than 1, the probability you have inventory goes down dramatically), and good luck sourcing these spokes outside of china at a good price.

Pillar Wing 20 are virtually identical with Sapim CX Ray, DT Swiss Aerolite and CN Spokes Mac Aero 494. I've built wheels with all of them. And you can definitely replace one with the other. All wheelsets use different length spokes - carbon or not. So that's not really an argument for one over the other.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on October 19, 2024, 03:55:38 PM
Pillar Wing 20 are virtually identical with Sapim CX Ray, DT Swiss Aerolite and CN Spokes Mac Aero 494. I've built wheels with all of them. And you can definitely replace one with the other. All wheelsets use different length spokes - carbon or not. So that's not really an argument for one over the other.

Knowing you can mix and match safely is above my pay grade (and I doubt manufacturers would agree with you). I wouldn't want to pretend I understand the physics of spokes and if my friend is going at 100kmh downhill, I wouldn't want to worry whether the melting pot of spokes from the bin is going to hold or not.
Where do you source your spokes? Are there useful resources I missed? My googling skills led me nowhere back then.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: tisun on October 19, 2024, 10:17:17 PM
Guys. We are going to release our T1100 rims next week. The rim in attached pictures is D50CU-33 T1100 rim UD paintless finish, under 390g/piece.

We are going to build these rims with carbon spokes and our hubs. The promotion price for below combo wheels would be 635 USD/pair excluding shipping, lasts Dec 24 :
D50CU-33 T1100 rims 21/21H UD paintless
Carbon Speed hubs 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver
Carbon spokes with nipples

The weight for this combo wheelset would be around 1245g/pair

And we are doing 20/20H version lighter hubs which won't be released until 2025, it will save another 40-45g on the wheels by then.

Peter, are you guys gonna have a similar version for MTB wheels?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sebastian on October 20, 2024, 12:55:49 AM
Knowing you can mix and match safely is above my pay grade (and I doubt manufacturers would agree with you). I wouldn't want to pretend I understand the physics of spokes and if my friend is going at 100kmh downhill, I wouldn't want to worry whether the melting pot of spokes from the bin is going to hold or not.
Where do you source your spokes? Are there useful resources I missed? My googling skills led me nowhere back then.

I'm not saying you should just put any old spoke into your friends wheel. I'm saying they are exactly the same.

Sapim in Belgium came up with the CX-Ray spoke by drawing a round spoke to a cross section of 0.9mm x 2.2mm. Everyone else subsequently came up with an exact copy of that design. The cross section doesn't differ with any of the other ones because this is exactly the biggest aero spoke that will still fit through conventional holes in any given hub.

So all of the spokes I mentioned are steel spokes with the same cross section. Therefore they have the same elasticity, regardless of differences in the grade of the steel (Sapim, I guess, might use higher grade steel than CN spokes. But that's really only a guess). There might be the tiniest differences in the length of the bladed section but if you'd bring a wheel to me I wouldn't hesitate replacing a Pillar Wing 20 with a CX-Ray. There will be no difference, I assure you.

Being in Europe, I get my spokes from wheel-parts.shop in the Netherlands. I never really bother replacing Wing20s like for like (unless somebody demands it) since there is a distributor in Germany getting them from Taiwan, but they end up being more expensive than Sapim. I happily buy chinese wheelsets with Wing20s however, as I don't think the up in price to upgrade to CX-Rays does anything. If I want to go cheap, I buy CN spokes which can be had in Germany. The threads on these are sometimes not rolled that well which is annoying when building wheels.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Tsunami on October 20, 2024, 01:37:22 AM
Are you also offering Wheels with Dynamo?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 20, 2024, 02:43:33 AM
Peter, are you guys gonna have a similar version for MTB wheels?
Yes, we will do, it would be 29er 30mm inner width XC rim around 300g/piece
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 20, 2024, 02:49:37 AM
I am also looking for wheels right now, and depending on the design, these may also interest me. Do you have a rim weight for the 65mm deep T1100 rims?

Regarding hubs, do you build with 0011 / THR Industries RX hubs or R3 road hubs? With CX-Rays Super or Alpina Hyperlight Aero spokes, these appear to be built wheels lighter than most carbon-spoked wheels.
I might be interested in the lighter hubs version 65mm deep. Do you know yet roughly in which part of 2025 it might be?

I don't think we want to do the T1100 version on D65CU-33 rims for now, it is too deep and we need to assess the possibilities like balance between strength, stiffness and light weight. We will try to do T1100 and test on D65CU-33, if everything is okay, then we will release them too.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 20, 2024, 02:50:19 AM
Are you also offering Wheels with Dynamo?
Sorry, no for now.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on October 20, 2024, 03:39:28 AM
And 58-60mm ?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on October 20, 2024, 04:50:56 AM
Pillar Wing 20 are virtually identical with Sapim CX Ray, DT Swiss Aerolite and CN Spokes Mac Aero 494. I've built wheels with all of them. And you can definitely replace one with the other. All wheelsets use different length spokes - carbon or not. So that's not really an argument for one over the other.

Wing 20's are .3 mm thicker and shallower than aerolite I and cx ray. Wing 20 will be measurably slower aerodynamically. Aero 494 are completely different and much closer to dt Aero II than any of these other ones so I'm going to assume you meant the 424 which are very similar to cx-ray and aerolite I
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sebastian on October 20, 2024, 06:24:01 AM
Wing 20's are .3 mm thicker and shallower than aerolite I and cx ray. Wing 20 will be measurably slower aerodynamically. Aero 494 are completely different and much closer to dt Aero II than any of these other ones so I'm going to assume you meant the 424 which are very similar to cx-ray and aerolite I

Thanks for clarifying. And yes, I meant the 424 then. I can never remember the number codes with CN spokes.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wektor115 on October 21, 2024, 09:34:58 AM
Hi everyone,

As I'm a bit green in the topic, I have a question. What considerations should one have in deciding between the T800 (regular) version of the rim, versus the new T1100 which Peter mentioned they're releasing this week?
It's surely nice to shave some grams off, but other than the weight aspect, should I expect a difference in riding experience or, most importantly, durability? What's your take on this new, lighter rim, paired with steel spokes?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on October 21, 2024, 09:44:00 AM
Hi everyone,

As I'm a bit green in the topic, I have a question. What considerations should one have in deciding between the T800 (regular) version of the rim, versus the new T1100 which Peter mentioned they're releasing this week?
It's surely nice to shave some grams off, but other than the weight aspect, should I expect a difference in riding experience or, most importantly, durability? What's your take on this new, lighter rim, paired with steel spokes?

T1100 is T300 faster than T800
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: rasch on October 21, 2024, 10:44:38 AM
Any plans on releasing new frames gravel or road?

Also possibly ship groupsets together with the packaging?

For me this this is a game changer to be able to get them shipped all together and save some costs. I understand it's not part of the core business (at least the groupsets) but at least for me, sourcing "all bigger pieces" - frame, groupset, wheels - from 1 place would help me definitely to choose a supplier. So far only Tantan is providing this to me, but their prices on groupsets are too high and wheels manufacturing needs thruiing most of the times.

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on October 21, 2024, 11:11:07 AM
Hi everyone,

As I'm a bit green in the topic, I have a question. What considerations should one have in deciding between the T800 (regular) version of the rim, versus the new T1100 which Peter mentioned they're releasing this week?
It's surely nice to shave some grams off, but other than the weight aspect, should I expect a difference in riding experience or, most importantly, durability? What's your take on this new, lighter rim, paired with steel spokes?

It depends so much on the layup that you can't make any conclusions or even serious assumptions from material alone
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on October 21, 2024, 12:37:19 PM
Hi everyone,

As I'm a bit green in the topic, I have a question. What considerations should one have in deciding between the T800 (regular) version of the rim, versus the new T1100 which Peter mentioned they're releasing this week?
It's surely nice to shave some grams off, but other than the weight aspect, should I expect a difference in riding experience or, most importantly, durability? What's your take on this new, lighter rim, paired with steel spokes?

T700 is the backbone of carbon fiber bike stuff (both rims and frames). T800 is more expensive, then T1000, T1100, then M40X. So, what do you get for the extra cost?
Stiffness goes up, and weight goes down.
However, with extra stiffness comes fragility. A rim that's full T1100, for eg, would be too fragile, and wouldn't pass impact resistance tests. Which is why, i assume, some of the highest end frames (sworks, for eg) have a reputation of being very fragile (think car travel where you throw the bike in the boot to find you cracked it).
And so, T700 is the backbone, and the others shave weight and add stiffness.

Having rebuilt my supersix rim w 50mm tubulars, the whole bike weighs 6kg, it's great fun to ride a light bike. It's snappy, you want to surge up every slope.
So, given  we're talking OEM pricing / providers, i'd strongly suggest you spend (at least a little bit) extra for the lighter version of a given rim. Ofc, some sellers make ultra light rims for ultra light people, this is niche, i'm not talking about that.
Peter, for eg, sells a standard T700 version, a light version (mix of 700 & 800), and is working on a version that includes T1100 as well.
Idk the price difference from 800 to 1100, but i know i only ever bought the 800 version because every time you accelerate, you do feel the weight of the wheels (that energy is stored and you'll roll longer unless you brake, but it still is harder to accelerate, and it feels nicer to have a snappy bike).
Also, from a resale standpoint, you'll have an easier time selling at a good price a set that's light
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: BeR on October 21, 2024, 01:28:32 PM
It depends so much on the layup that you can't make any conclusions or even serious assumptions from material alone

And I doubt that the rim is full T1100. Maybe a mix of 700, 800 and 1100.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on October 21, 2024, 05:13:51 PM
And I doubt that the rim is full T1100. Maybe a mix of 700, 800 and 1100.

It can't be full t1100, it wouldn't pass impact résistance test. The T1100 version is a mix of all 3 fibers.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 22, 2024, 02:23:19 AM
And I doubt that the rim is full T1100. Maybe a mix of 700, 800 and 1100.
It can't be full t1100, it wouldn't pass impact résistance test. The T1100 version is a mix of all 3 fibers.
Correct. It can't be full T1100, otherwise it would be too fragile.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wektor115 on October 22, 2024, 04:46:39 AM
Thanks for the insights Serge. I decided to order the 50 deep, 33 wide rim with house bearings and pillar 1420 spokes. Peter has been quick to reply to my questions on WhatsApp. I’ll post an update after receiving the wheels.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 22, 2024, 10:25:12 AM
Any plans on releasing new frames gravel or road?

Also possibly ship groupsets together with the packaging?

For me this this is a game changer to be able to get them shipped all together and save some costs. I understand it's not part of the core business (at least the groupsets) but at least for me, sourcing "all bigger pieces" - frame, groupset, wheels - from 1 place would help me definitely to choose a supplier. So far only Tantan is providing this to me, but their prices on groupsets are too high and wheels manufacturing needs thruiing most of the times.

We would release two new road disc frames, but biggest sizes on both framesets is about 54cm for now, and we are still having someone testing them.

I don't think we would offer groupset, it is not cost-effective to buy Shimano or Sram from China, and we don't want to be reseller on Ltwoo or Wheeltop, and their quality...

TanTan makes good quality frames, and we have been cooperating with each other on some points. Will try our best to offer best value frameset and wheels package.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: neobiker on October 22, 2024, 10:25:21 PM
We would release two new road disc frames, but biggest sizes on both framesets is about 54cm for now, and we are still having someone testing them.

I don't think we would offer groupset, it is not cost-effective to buy Shimano or Sram from China, and we don't want to be reseller on Ltwoo or Wheeltop, and their quality...

TanTan makes good quality frames, and we have been cooperating with each other on some points. Will try our best to offer best value frameset and wheels package.

Any teaser / pictures / geometry of theses frames? Please
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 23, 2024, 02:09:41 AM
Any teaser / pictures / geometry of theses frames? Please
Any plans on releasing new frames gravel or road?

Also possibly ship groupsets together with the packaging?

For me this this is a game changer to be able to get them shipped all together and save some costs. I understand it's not part of the core business (at least the groupsets) but at least for me, sourcing "all bigger pieces" - frame, groupset, wheels - from 1 place would help me definitely to choose a supplier. So far only Tantan is providing this to me, but their prices on groupsets are too high and wheels manufacturing needs thruiing most of the times.
See the attached geometry and some pictures for CS-R01 frameset, size 54cm is around 950g, max tire size is 700x32C, T47-68 bottom bracket, available sizes: XS/S/M/L
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on October 23, 2024, 03:51:54 AM
See the attached geometry and some pictures for CS-R01 frameset, size 54cm is around 950g, max tire size is 700x32C, T47-68 bottom bracket, available sizes: XS/S/M/L

 The official tire is 700x32c but do you think a 35mm wide tire would fit? I like a narrow all road/gravel (very low knobs) tire and the other specs of this frame is exactly what I am looking for.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 23, 2024, 05:42:51 AM
The official tire is 700x32c but do you think a 35mm wide tire would fit? I like a narrow all road/gravel (very low knobs) tire and the other specs of this frame is exactly what I am looking for.

Could you send me an email? I will send you extra information for reference, I am not sure 35mm wide tires would fit or not, to me, i think it should fit with the frame.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Requiem84 on October 23, 2024, 06:02:54 AM
Received my wheels from Peter last week. Could not try them yet as my frame hasn’t arrived yet. Did check them out and they look really good.

For this price point also seriously impressed with the weight. Just a few grams above 1400g. That is quite impressive for a 50mm deep set, 28mm iw and 36mm ew.

Communicating etc with Peter is top notch. Happy purchase so far ^^.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Icyseanfitz on October 23, 2024, 06:11:06 AM
See the attached geometry and some pictures for CS-R01 frameset, size 54cm is around 950g, max tire size is 700x32C, T47-68 bottom bracket, available sizes: XS/S/M/L

Hi Peter, I'm in the market for a new frame, could you pm me more details on this and a price, do you do paint designs?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 23, 2024, 06:23:46 AM
Hi Peter, I'm in the market for a new frame, could you pm me more details on this and a price, do you do paint designs?

Sorry. I was planning to upload our 2nd frameset here, but not sure why I wasn't able to upload pictures again.

Could you send me an email and I will reply you with details?

Thank you so much.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TidyDinosaur on October 23, 2024, 07:06:45 AM
See the attached geometry and some pictures for CS-R01 frameset, size 54cm is around 950g, max tire size is 700x32C, T47-68 bottom bracket, available sizes: XS/S/M/L

Looks like a very nice frame :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Vaclav on October 24, 2024, 04:00:48 AM
Consider wheelsets with CS-D65CU-33, but worried about 26mm internal. I bought lot of 25mm Schwalbe pro race (good deal 27$/piece) and want still used them. On my actual 21mm internal rims they have 26mm, I thing on 23mm it will be something like 27mm. So I suppose that on this 26 internal rim the tire will have something like 28-29mm. Question is, will it work and is it safe?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: zett on October 24, 2024, 05:10:49 AM
Consider wheelsets with CS-D65CU-33, but worried about 26mm internal. I bought lot of 25mm Schwalbe pro race (good deal 27$/piece) and want still used them. On my actual 21mm internal rims they have 26mm, I thing on 23mm it will be something like 27mm. So I suppose that on this 26 internal rim the tire will have something like 28-29mm. Question is, will it work and is it safe?

This combination of rim width and tire width is not recommended and likely not safe to ride.

Another thing: Peter, I sent a mail with a request a couple of days ago, and didn't get a reply so far. Does it simply take a bit longer or is it possible that my mail was lost?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on October 24, 2024, 05:26:06 AM
It's already not a good idea because you will be cornering on the sidewalls with that combo
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PLA on October 24, 2024, 05:36:47 AM
is it possible that my mail was lost?

Might have been an uphill journey, so it's taking longer to get to him.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: SirBikealot on October 24, 2024, 05:37:44 AM

Another thing: Peter, I sent a mail with a request a couple of days ago, and didn't get a reply so far. Does it simply take a bit longer or is it possible that my mail was lost?
did you look into your spam folder? Had they the same "problem" but tada there it was.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 24, 2024, 05:43:21 AM
This combination of rim width and tire width is not recommended and likely not safe to ride.

Another thing: Peter, I sent a mail with a request a couple of days ago, and didn't get a reply so far. Does it simply take a bit longer or is it possible that my mail was lost?
I don't have any unread email in my mail box recently. Which email address did you send to? If possible send me PM with your email address, I will try to send you email first then you can reply me with your request.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on October 24, 2024, 06:44:05 AM
See the attached geometry and some pictures for CS-R01 frameset, size 54cm is around 950g, max tire size is 700x32C, T47-68 bottom bracket, available sizes: XS/S/M/L

 Should be perfect for a road/light gravel all road bike. For those interested it's already on geometry geeks.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: maza on October 24, 2024, 07:00:26 AM
Consider wheelsets with CS-D65CU-33, but worried about 26mm internal. I bought lot of 25mm Schwalbe pro race (good deal 27$/piece) and want still used them. On my actual 21mm internal rims they have 26mm, I thing on 23mm it will be something like 27mm. So I suppose that on this 26 internal rim the tire will have something like 28-29mm. Question is, will it work and is it safe?
Sounds like you bought nice wheels for your previous Lada and now you're desperate to use them on your new Mercedes. Sell them for $25 per piece and move on.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Vaclav on October 24, 2024, 11:40:13 AM
Sounds like you bought nice wheels for your previous Lada and now you're desperate to use them on your new Mercedes. Sell them for $25 per piece and move on.
I am planning go to 28mm tire, but in theese dayes, when you buy 28mm tire produced this/last years, manufacturers do not count that you have 26mm internal rim and theese tires are in the end 32-33mm wide - this is for me too big jump and bike life change from my actual 25mm.  :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: zett on October 24, 2024, 12:34:42 PM
28 mm is not a good idea either, that is still well outside ETRTO spec (https://www.schwalbe.com/media/f5/9b/3e/1716878352/Reifen_Felgenkombination_ETRTO_EN_(2).pdf). 26 mm inner width is for 35+ mm gravel tires. 30 mm is already questionable, but 28 mm? no way.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on October 24, 2024, 02:18:31 PM
28 mm is not a good idea either, that is still well outside ETRTO spec (https://www.schwalbe.com/media/f5/9b/3e/1716878352/Reifen_Felgenkombination_ETRTO_EN_(2).pdf). 26 mm inner width is for 35+ mm gravel tires. 30 mm is already questionable, but 28 mm? no way.

The craft racing works 5060 has a 25mm internal rim in the front and they recommend "above 26c for the front tire". I assume 28c on a 26mm rim would be fine but I wouldnt just because I think on these particular rims a 30/32c would be better in every way.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: zett on October 25, 2024, 01:22:13 AM
ETRTO actually went back in the 2024 spec and now requires 29+ mm tires on 25 mm rims. Pretty sure because combinations like 28 mm tires on 25 mm rims turned out to be problematic. There were some incidents, at least one in the pro peloton as well.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Da11as on October 25, 2024, 04:35:10 AM
See the attached geometry and some pictures for CS-R01 frameset, size 54cm is around 950g, max tire size is 700x32C, T47-68 bottom bracket, available sizes: XS/S/M/L
Hey Peter! Looking good, when you plan to release it? Does second frame follows similar, endurance-focused design, or is it more racy?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on October 25, 2024, 05:17:20 AM
ETRTO actually went back in the 2024 spec and now requires 29+ mm tires on 25 mm rims. Pretty sure because combinations like 28 mm tires on 25 mm rims turned out to be problematic. There were some incidents, at least one in the pro peloton as well.

Pointless rule when there is no standard for measurent. Some 28c labeled tyres measure 30 mm on a certain rim while others measure 29 mm and anothed still might measure 32 mm. Now that manufacturers are catching up to modern trend we're getting new tyres that are labeled the same width as older ones when in reality they're actually notably smaller. But because the number on the label is the same ppl will happily run tyres that they would have previously considered 'incompatible'.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on October 26, 2024, 03:19:03 AM
Hey Peter! Looking good, when you plan to release it? Does second frame follows similar, endurance-focused design, or is it more racy?

Sorry I am not able to upload the pictures, 2nd frameset is CS-R06 frameset is similar to CS-R01. PM me with your email address, I will send you the details.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: bmrk on October 28, 2024, 04:50:25 AM
Guys. We are going to release our T1100 rims next week. The rim in attached pictures is D50CU-33 T1100 rim UD paintless finish, under 390g/piece.

We are going to build these rims with carbon spokes and our hubs. The promotion price for below combo wheels would be 635 USD/pair excluding shipping, lasts Dec 24 :
D50CU-33 T1100 rims 21/21H UD paintless
Carbon Speed hubs 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver
Carbon spokes with nipples

The weight for this combo wheelset would be around 1245g/pair

And we are doing 20/20H version lighter hubs which won't be released until 2025, it will save another 40-45g on the wheels by then.

Hello @PeterXu,
Are the D50CU-33 T1100 rims available already?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ejump0 on November 05, 2024, 06:37:15 PM
Yes. they could be customized now.

excellent.
Im intersted to know more on/order D50CU-33 T1100 disc in matte.
I have TCR 2021 and Seraph TT912 which can clear my Parcours Chrono 77/86custom (kinda wide).
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: pavlo.k on November 06, 2024, 09:05:21 AM
Finally got my hands on the wheelset and so far I'm happy with it. 65mm rim with 26mm internal with in-house hubs and pillar 1420 spokes weight just under 1500g. The paintless finish looks fantastic. 30mm Schwalbe Pro one measures around 33mm and sits flush with the rim
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on November 06, 2024, 09:12:42 AM
Sorry about this, not sure why I broke this page, I didn't mean to, maybe I was trying to upload pictures. How to fix this?

 I doubt you broke anything. Poor script writing for the website would be my guess.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on November 06, 2024, 09:14:35 AM
page 8 is dead
the wheels are too light to be on a page  ;D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Tpower59 on November 06, 2024, 01:47:24 PM
Finally got my hands on the wheelset and so far I'm happy with it. 65mm rim with 26mm internal with in-house hubs and pillar 1420 spokes weight just under 1500g. The paintless finish looks fantastic. 30mm Schwalbe Pro one measures around 33mm and sits flush with the rim

What was the Price for this ?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on November 06, 2024, 07:06:52 PM
What was the Price for this ?

I got the same spec as him I believe and received the wheels yesterday was $570 shipped to usa and paypal fees.

These are such a nice wheel spec wide, deep and light for the depth and at a good price. I'll probably get some of the D50-36 for my next bike. I was worried about the freehub noise but its not terrible, ali elite wheels hubs I've used are worse.

Peter are you going to do T1100 version of the D50-36?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on November 06, 2024, 10:42:52 PM
I got the same spec as him I believe and received the wheels yesterday was $570 shipped to usa and paypal fees.

These are such a nice wheel spec wide, deep and light for the depth and at a good price. I'll probably get some of the D50-36 for my next bike. I was worried about the freehub noise but its not terrible, ali elite wheels hubs I've used are worse.

Peter are you going to do T1100 version of the D50-36?

Yes, your wheels are exactly same spec, the only difference is your rims are in matt finish while Pavlo.k's are UD paintless, so your wheels are a bit heavier than his.

Yes, I think we ware going to do T1100 version of the D50CU-36 rims too.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: RiegelundGel97 on November 07, 2024, 03:36:09 AM
Hello,

im considering getting XM-Carbonspeed wheels as well. Are the in house ratchet hubs easy serviceable (e.g. with DT-Swiss upgrade kit or Bearing-Service)?

Ty
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on November 07, 2024, 04:14:45 AM
Hello,

im considering getting XM-Carbonspeed wheels as well. Are the in house ratchet hubs easy serviceable (e.g. with DT-Swiss upgrade kit or Bearing-Service)?

Ty

Yes, you can use the DT rachets and spring washer to replace the original ones on our in-house hubs, beasings too. We just upgrade the bearings on in-house hubs with ENDURO steel bearings today, previous ones are NBK bearings, some clients don't like the NBK ones.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ejump0 on November 07, 2024, 06:03:14 AM
sup guys. 
im interested with the d50cu-33 t1100. 

i have been running parcours 28mm width with 32mm gp4season clincher on my tri bike(blue) just fine with 4mm clearance of chainstay (the tire is bulbous). 

today i tried to fit on my tcr 2021(green:; have not ridden since new yr as im 100% on tt912) n found out the tire touching the chainstay. 
im planning to make my tcr a touring bike. 

do you think d50cu-33 with 30mm a no go on tcr?

edit:
to those of you having fitted 28mm Gp5k/Pzero 4s clinchers, what width does the tire stretched to?
Schwalbe 30mm seems to go 33mm per recent poster.
i plan to stay tubes

parcours: 22.5mm iw, 28mm ew
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: 95s10nj on November 08, 2024, 07:54:54 AM
Hello,

im considering getting XM-Carbonspeed wheels as well. Are the in house ratchet hubs easy serviceable (e.g. with DT-Swiss upgrade kit or Bearing-Service)?

Ty

The front hub bearings are 63802 (15x24x7). The rear hub bearings are 63802 (15x24x7). The freehub has 1-63802(15x24x7) and 1-15267(15x26x7).
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on November 08, 2024, 08:07:42 AM
sup guys. 
im interested with the d50cu-33 t1100. 

i have been running parcours 28mm width with 32mm gp4season clincher on my tri bike(blue) just fine with 4mm clearance of chainstay (the tire is bulbous). 

today i tried to fit on my tcr 2021(green:; have not ridden since new yr as im 100% on tt912) n found out the tire touching the chainstay. 
im planning to make my tcr a touring bike. 

do you think d50cu-33 with 30mm a no go on tcr?

edit:
to those of you having fitted 28mm Gp5k/Pzero 4s clinchers, what width does the tire stretched to?
Schwalbe 30mm seems to go 33mm per recent poster
i plan to stay tubes

So your asking if a rim measuring over 34mm will fit your bike when a 32c tire cannot clear your chainstays? Gonna go out on a limb and say no
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: JayBee on November 14, 2024, 03:26:02 PM
Received wheel set from Peter earlier this week. As expected, Peter has been super helpful and responsive.

Details:

Front D50CU-28 T800 rim 21H Rear D55CU-28 T800 rim 21H UD matt
Carbon Speed Custom hubs for carbon spokes 36T rachets steel bearings center lock straight pull for 100*12/142*12 with Shimano HG driver
5.2mm carbon spokes

Roughly 1340 grams before I mounted tires, discs, cassette.

They look great...hopefully I'll be able take them out for a spin sometime soon.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on November 14, 2024, 03:31:08 PM
I've placed an order for d50cu-33 t1100  8)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on November 14, 2024, 04:41:27 PM
Received wheel set from Peter earlier this week. As expected, Peter has been super helpful and responsive.

Details:

Front D50CU-28 T800 rim 21H Rear D55CU-28 T800 rim 21H UD matt
Carbon Speed Custom hubs for carbon spokes 36T rachets steel bearings center lock straight pull for 100*12/142*12 with Shimano HG driver
5.2mm carbon spokes

Roughly 1340 grams before I mounted tires, discs, cassette.

They look great...hopefully I'll be able take them out for a spin sometime soon.

Could you take closer pics of the hubs?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: JayBee on November 14, 2024, 05:30:09 PM
Could you take closer pics of the hubs?

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sakizashi on November 14, 2024, 10:23:24 PM
@toxin Peter showed me a picture of the 20h hub. It's 294g/set and slotted straight pull, not side entry.

The updated wheels will be nice when they are released. The only drawback I see is that, according to many manufacturers' charts, 26mm internal width needs a wider road tire than most people would want to run. I think I would feel comfortable with 32mm on those wheels, following the rough ETRTO guidance, but that's at odds with the charts from Conti and Schwalbe.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ejump0 on November 14, 2024, 10:51:33 PM
im still undecided between d50cu-33  t800 or t1100 version, but im planning to put michelin powercup 28, as theyre wider than average 28's
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on November 15, 2024, 05:34:52 AM
@toxin Peter showed me a picture of the 20h hub. It's 294g/set and slotted straight pull, not side entry.

The updated wheels will be nice when they are released. The only drawback I see is that, according to many manufacturers' charts, 26mm internal width needs a wider road tire than most people would want to run. I think I would feel comfortable with 32mm on those wheels, following the rough ETRTO guidance, but that's at odds with the charts from Conti and Schwalbe.

A touch on the heavy side but ok.

Yeah, not great for the front, personally I'd only be running these rims on the rear anyway
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on November 15, 2024, 05:55:58 AM
im still undecided between d50cu-33  t800 or t1100 version, but im planning to put michelin powercup 28, as theyre wider than average 28's

If you wanna some reference: I went with t800, d50cu33, inhouse hubs, cxray and brass nips - 1420g.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Kofsw4 on November 15, 2024, 06:36:42 AM
im still undecided between d50cu-33  t800 or t1100 version, but im planning to put michelin powercup 28, as theyre wider than average 28's

I've been using 28mm PowerCups on 24mm internal rims and while the tyre casing is wide (meaning the tyre blows out to about 31.5mm) the tread width definitely isn't. I can see from the scuffing that I have been riding on the sidewall quite a bit. I wouldn't recommend those tyres for rims that wide, and probably only for 21-23mm internal width.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Icyseanfitz on November 15, 2024, 07:14:07 AM
d50cu-28  t800, in house hubs, carbon spokes, 1316g. Can't wait to get them in hand.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ejump0 on November 15, 2024, 08:04:18 AM
I've been using 28mm PowerCups on 24mm internal rims and while the tyre casing is wide (meaning the tyre blows out to about 31.5mm) the tread width definitely isn't. I can see from the scuffing that I have been riding on the sidewall quite a bit. I wouldn't recommend those tyres for rims that wide, and probably only for 21-23mm internal width.

oh well..
.... the tires have arrived. mine's the clincher ver.
worse comes to worst, i'll just put on my rears, on both future d50cu-33 n my parcours chrono, since they seems have better puncture protection that gp5k clinchers 
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: RiegelundGel97 on November 15, 2024, 08:56:17 AM
d50cu-28  t800, in house hubs, carbon spokes, 1316g. Can't wait to get them in hand.

Is That a Glossy finish? :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Icyseanfitz on November 15, 2024, 09:05:22 AM

Is That a Glossy finish? :)

Yeah glossy with some small decals
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: zett on November 15, 2024, 10:39:09 AM
Yeah, I don't really understand why many (?) people here are going for those 26 mm inner width rims for road use with narrow tires. ETRTO recommendations don't exist for nothing. You can usually go a bit further than recommended, but it's a bit of a gamble.

Unless you want to to exclusively run 32+ mm tires, don't get those rims!

That said, it would be great to see something between 21 mm and 26 mm rim width. Something like 23 or 24 mm would be pretty versatile.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: bremerradkurier on November 15, 2024, 10:50:06 AM
Yeah, I don't really understand why many (?) people here are going for those 26 mm inner width rims for road use with narrow tires. ETRTO recommendations don't exist for nothing. You can usually go a bit further than recommended, but it's a bit of a gamble.

Unless you want to to exclusively run 32+ mm tires, don't get those rims!

That said, it would be great to see something between 21 mm and 26 mm rim width. Something like 23 or 24 mm would be pretty versatile.

I'm running the 50x26 IW Carbonspeed wheels with  38c Schwalbe Pro One tires and the ride quality is incredible.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: kubackje on November 15, 2024, 01:11:40 PM
Yeah, I don't really understand why many (?) people here are going for those 26 mm inner width rims for road use with narrow tires. ETRTO recommendations don't exist for nothing. You can usually go a bit further than recommended, but it's a bit of a gamble.

Unless you want to to exclusively run 32+ mm tires, don't get those rims!

That said, it would be great to see something between 21 mm and 26 mm rim width. Something like 23 or 24 mm would be pretty versatile.

Then get the new uni rims from yuanan that are 23iw and 32 external
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: biceryder on November 15, 2024, 05:53:28 PM
Finally got my hands on the wheelset and so far I'm happy with it. 65mm rim with 26mm internal with in-house hubs and pillar 1420 spokes weight just under 1500g. The paintless finish looks fantastic. 30mm Schwalbe Pro one measures around 33mm and sits flush with the rim

What frame are you running these on?  What’s your max clearance? 

I want to run 32mm tires on a new frame with a max clearance of 32mm.  Wondering something like the 26mm IW/33mm EW is pushing it a bit far unless I get something like the LT 301D.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on November 16, 2024, 09:57:29 AM
What frame are you running these on?  What’s your max clearance? 

I want to run 32mm tires on a new frame with a max clearance of 32mm.  Wondering something like the 26mm IW/33mm EW is pushing it a bit far unless I get something like the LT 301D.

32C clearance, or 32mm? There's no standard. Sometimes a seller will start saying 30C, then start saying 32C instead because it's what clients want to hear. My lt268 has plenty of clearance for 34mm, or more. Velobuild 177 claims to clear 32C but various users showed that it doesn't.
Best is to ask the factory for the CAD drawing and how much space there is between seat stays. That's what long teng sent me when I inquired before ordering my lt268.
In theory, 32C clearance should allow you to run 32C with a 33mm rim. For aero purposes, I'd suggest 30C on 33mm rim though, as the 30C will measure wider than 30 on a 33 rim.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on November 16, 2024, 10:38:16 AM
as reference, in my tt-x38 with rims 25 iw and 32mm gp 5000tlr they are 33mm real
and this is the space in the frame that claim 32 max tire

can't wait to receive the t1100 wheels
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: biceryder on November 16, 2024, 02:23:36 PM
32C clearance, or 32mm? There's no standard. Sometimes a seller will start saying 30C, then start saying 32C instead because it's what clients want to hear. My lt268 has plenty of clearance for 34mm, or more. Velobuild 177 claims to clear 32C but various users showed that it doesn't.
Best is to ask the factory for the CAD drawing and how much space there is between seat stays. That's what long teng sent me when I inquired before ordering my lt268.
In theory, 32C clearance should allow you to run 32C with a 33mm rim. For aero purposes, I'd suggest 30C on 33mm rim though, as the 30C will measure wider than 30 on a 33 rim.


Serge,  thank you for the clarifying information.  I mixed up clearance with wheel width.  I’m leaning towards the CS-R01.  Peter sent measurements of the chainstay which put it around 38mm at the narrowest.  By my estimates that would give the frame 2.5mm (5mm total) on either side to clear a 33mm OW wheel.  I like to go as wide as I can to support 30-32mm tires.  I’m just unsure if 2.5mm is enough clearance or pushing the limits of what the frame can support.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Macedingle on November 17, 2024, 07:49:47 AM
Are you not susposed to run a 28c tire on 24 internal rims?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sakizashi on November 17, 2024, 10:55:52 AM
Are you not susposed to run a 28c tire on 24 internal rims?

ETRTO guidance and UCI rules would say no—so as of mid last season this would be an illegal combination for racing on the basis of safety. While blowoffs are the catastrophic failure, the more common issue of too wide of a rim is riding on the sidewall and getting more punctures.

The C on tire sizes has nothing to do with width—it’s the designation for the bead seat diameter (BSD) of the rim (622mm). The format you all are seeing are looking at is referring to the different dimensions of the rim. 700 is a size designation that is supposed to the OD of the system at some arbitrary tire size that was historically used. The only place where this is still relevant is for 650b vs. 650c. Tires are specified in the format of [size designation]x[width][BSD].

Actual tire width for road tires is specified on a different rim width thats sort of standard and sort of manufacturer dependent. Most 28s are specified for a 19mm or 21mm IW rim for example and most 32s are to a 23mm or 24mm IW rim. 34+ is usually true to size on a 25mm IW rim.

To make matters worse there are two different ISO standards for tire clearance to the frame. 6mm is the off-road standard that gets used on a lot of allroad and gravel bikes. Some manufacturers (e.g., Trek) use 6mm on their road bikes too. 4mm is the road standard that also sometimes gets used for allroad and gravel bikes.

If you want to make sure a tire / rim fits your bike the best thing to do is measure or get a dimensioned drawing of your bike frame to compare. Most fork and frame manufacturers can provide this if its not in the listing.

TLDR: for road widths 23mm IW width rims give you the most options. 24mm-25mm is good too as it allows you to fit 30s. Measure your bike and the tires. You probably want 4mm of clearance on all sides of the tire and similar to the rims.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on November 17, 2024, 12:41:11 PM
Yeah, I don't really understand why many (?) people here are going for those 26 mm inner width rims for road use with narrow tires. ETRTO recommendations don't exist for nothing. You can usually go a bit further than recommended, but it's a bit of a gamble.

Unless you want to to exclusively run 32+ mm tires, don't get those rims!

That said, it would be great to see something between 21 mm and 26 mm rim width. Something like 23 or 24 mm would be pretty versatile.

Well, it's hard not to see the direction of the industry. With Enve ses line, their 25/33 width, they recommend 27c as a minimum and they literally state "aero optimized tr tyre size". With the trend towards wider tyres, and having 105% aero "rule" (and it really does mean something), it's really hard to ignore that.

Kudos to Serge_K for introducing me this trend, and recommending to go wider. I went initially with 28 ow, but told Peter if it's ok to change to wider option, and thankfully he approved. Cost difference is about 20$ per rim, even less.

On the same tangent, but a bit different topic. Chinese industry follows the trend. After all, all major brands ship their blueprints long before the product arrives to market. And they ship them blueprints to manufacturing plants, guess where? Well, China :) ...And don't you think that once they have their eyes on those blueprints, they won't use the opportunity to jump ahead of the rest? Meaning they'll have the similar product ready to be manufactured as soon it gets the hype from that major brand?

I bought my carbonda fm936 xc full-sus 2y ago. The frame was from 2019. And the geometry is still SPOT ON with the trend. If you go to 2019. and see the geo numbers on all xc bikes, you see huge difference with some noname chinese oem's that somehow made so progressive frame years before it was the "thing".

They follow the trends, and use simple logic to get advantage every way they can. It may be not so moral from some perspective, but damn, we can get up-to-date products with decent enough quality for a really good bargain. Take my money. :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: planet_sammy on November 20, 2024, 01:50:10 AM
I don't know if I missed it, what is the maximum rider weight with carbon spokes and 21mm inner width of the tires?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on November 20, 2024, 07:42:41 PM
I've been considering the 26mm IW wheels with the intention of using minimum 32c tires but just looked up the ETRTO and the min size recommended for 26mm IW is 35c tires. 

Is it best to follow this guidance? If so then I guess I'd go for the narrower wheels but have to expect that'll result in a hit in aero performance.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on November 20, 2024, 08:08:03 PM
32c will be fine, will probably inflate beyond 33 anyway
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: lazvask14 on November 21, 2024, 10:12:47 AM
Then get the new uni rims from yuanan that are 23iw and 32 external

Not seeing uni rims on their site with 23iw and 32 external. Are these not listed yet?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on November 21, 2024, 12:05:48 PM
Not seeing uni rims on their site with 23iw and 32 external. Are these not listed yet?

their website is pretty useless. Best to liaise w Peter on whatsapp, or via the forum. I never even look at their website anymore.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: BeR on November 21, 2024, 12:17:29 PM
their website is pretty useless. Best to liaise w Peter on whatsapp, or via the forum. I never even look at their website anymore.

They have a new website but under construction :

https://www.xmcarbonspeed.cc/
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on November 21, 2024, 01:25:09 PM
That website lists the tire compatibility for the 26mm internal wheel

5, Compatible for 700*23C-43C tire (tubeless ready)

 What does ETRTO know anyways im gonna go ahead and setup 23c tubeless
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on November 21, 2024, 01:40:22 PM
I've been considering the 26mm IW wheels with the intention of using minimum 32c tires but just looked up the ETRTO and the min size recommended for 26mm IW is 35c tires. 

Is it best to follow this guidance? If so then I guess I'd go for the narrower wheels but have to expect that'll result in a hit in aero performance.

If ENVE recommends 27c tyre as best aero optimized for 25iw, then for sure you can run 30c on 26iw... That's my logic anyways.

edit: just to put a good word for Peter here on forum... this was his message the other day:

"Hi Ivo,

This is the tracking number by UPS: XXXXXXX

BTW, I paid extra $48 on shipping because you are from remote area :(  But it is OK, hope you like our products

Best Regards,
Peter"

I don't need to say much more. Of course I payed the man the difference. But the fact he didn't even ask for it is... hands down.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sakizashi on November 21, 2024, 02:27:59 PM
If ENVE recommends 27c tyre as best aero optimized for 25iw, then for sure you can run 30c on 26iw... That's my logic anyways.

ENVE has a specific list of tires tested to work specifically with their rims. There is no generalizable design principle here that can be applied to other wheels as the problem lies with the tire geometry, rim geometry, and the tire-rim interface

There are two sets of somewhat conflicting general recommendations. There are the ETRTO-based charts from the tire makers earlier in the thread, but also their general recommendation that there be a minimum of 5mm between the marked tire width and the rim's inner width. Many brands, including ENVE, Zipp, and Hunt, do not like either recommendation. Ultimately, those in favor (Continental, Mavic, etc.) won out, and the UCI adopted the 5mm recommendation as a rule. This forced teams like UAE to use the 30mm GP5000 S TR and move away from the 28mm TT TR tire.

This became an issue because of a bunch of high-profile tire blowoffs, largely on Zipp wheels, that resulted in injury to pro riders. However, there are also a lot of anecdotal blowoffs of other brands as well that you can find by searching other forums.

At the least, I would follow the 5mm rule on this one and run 32mm tires, as the consequences of a blowoff are the same as rolling a tubular tire off the wheel--if it's on the front, you will likely crash. I plan to follow both the tire maker charts and the 5mm rule, as I like not crashing.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Alexander on November 22, 2024, 02:40:14 AM
I'm very interested in buying a set of wheels from Peter for a new build.
Looking at the 50mm 26iw 33ow rim.

However, I am unsure which free body I should order. The HG or XD.
I have not yet bought a group set for the build. I might go SRAM AXS or maybe just Ltwoo R9 (non electronic).

Could anyone provide some guidance?

Thanks!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: raisinberry777 on November 22, 2024, 02:43:13 AM
Figure out the groupsets first. SRAM = XD, anything else = HG
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on November 22, 2024, 08:29:22 AM
I'm very interested in buying a set of wheels from Peter for a new build.
Looking at the 50mm 26iw 33ow rim.

However, I am unsure which free body I should order. The HG or XD.
I have not yet bought a group set for the build. I might go SRAM AXS or maybe just Ltwoo R9 (non electronic).

Could anyone provide some guidance?

Thanks!

I believe you can ask Peter for spare freehub for cheap price probably. So order HG and ask for XD as well. I wanted to but decided to go with shimano so didn't need to.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: stachu on November 22, 2024, 02:37:00 PM
Have anyone got rim brake version of wheels and can share the opinion?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on November 23, 2024, 10:10:53 AM
That website lists the tire compatibility for the 26mm internal wheel

5, Compatible for 700*23C-43C tire (tubeless ready)

 What does ETRTO know anyways im gonna go ahead and setup 23c tubeless

Actually that is a mistake by my colleague Allen when he listed the products, he copied the spec. but didn't revise the information for different widths rims/wheels.

On these 26mm inner width rims, we suggest 28C minimum.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Alexander on November 25, 2024, 01:55:00 PM
Figure out the groupsets first. SRAM = XD, anything else = HG

Thanks! I took your advice and ended up ordering a Shimano 105 11-speed groupset.

Now I’m a bit confused thought since there seem to be HG bodies and HG road bodies?
Is that so? Will the HG body from Peter work for 11-speed Shimano?

I feel I’ve biked long enough to know this stuff but oh well   :-[
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Macedingle on November 25, 2024, 07:22:31 PM
Thanks! I took your advice and ended up ordering a Shimano 105 11-speed groupset.

Now I’m a bit confused thought since there seem to be HG bodies and HG road bodies?
Is that so? Will the HG body from Peter work for 11-speed Shimano?

I feel I’ve biked long enough to know this stuff but oh well   :-[

Yes it will
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: planet_sammy on November 26, 2024, 01:45:01 AM


Do the spokes touch at the intersections?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on November 26, 2024, 04:15:33 AM
Current T1100 version rims weight:
D45CU-28 21.4mm ID 28mm OD UD paintless - 355g/piece ,  1165g/pair built with carbon spokes, in-house 54T rachets TPI ceramic bearings hubs 21/21H
D50CU-28 21.4mm ID 28mm OD UD paintless - 365g/piece
D40CU-33 26mm ID 33mm OD UD paintless - 370g/piece
D50CU-33 26mm ID 33mm OD UD paintless - 385g/piece
D50CU-36 28mm ID 36mm OD UD paintless - 400g/piece
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: acino on November 26, 2024, 03:03:59 PM
Ordered mine and can't wait for them! It's been said million times, but Peter was incredibly helpful and patient with all my annoying questions  :-[
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on November 28, 2024, 07:15:56 AM
Guys, since these will be my first carbon rim build, I wonder if the nipple washers still a thing here, cause DTswiss (rims I mostly build my mtb wheels on) do recommend nip washers. I asked Peter and he was pretty clear: nowdays they are rarely used. So what are your recommendations, or practice/experience? thanks in advance!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Cnasta on November 28, 2024, 09:13:20 AM
Guys, since these will be my first carbon rim build, I wonder if the nipple washers still a thing here, cause DTswiss (rims I mostly build my mtb wheels on) do recommend nip washers. I asked Peter and he was pretty clear: nowdays they are rarely used. So what are your recommendations, or practice/experience? thanks in advance!

I would go with what Peter says. I'll be ordering a wheelset this week/next week. Just working out the last details. Years ago I ordered some stuff with him and he was very helpfull in the proces. I think I'd trust him on the wheels/no-washers (I also don't see them anymore on other hi-end carbon wheels, and I did have them on my last Alu MTB and race wheelsets),
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on November 28, 2024, 09:33:52 AM
I would go with what Peter says. I'll be ordering a wheelset this week/next week. Just working out the last details. Years ago I ordered some stuff with him and he was very helpfull in the proces. I think I'd trust him on the wheels/no-washers (I also don't see them anymore on other hi-end carbon wheels, and I did have them on my last Alu MTB and race wheelsets),

I sure don't mind couple of grams less on my wheels.  ;D

My wheelset and xc rims are still in transit. Landed in EU today. Should be arriving next week. The only bad part about chinese oem parts is... the wait game. Waiting on my vb268 for a month now :'(
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on November 30, 2024, 05:42:38 AM
Peter send me a photo of my wheelset
Lighter than expected!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: raisinberry777 on November 30, 2024, 05:53:08 AM
Which rims are they?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on November 30, 2024, 05:55:27 AM
Which rims are they?

T1100 D50CU-33 rims 21/21H UD paintless built up with Carbon Speed hubs 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on November 30, 2024, 06:09:24 AM
T1100 D50CU-33 rims 21/21H UD paintless built up with Carbon Speed hubs 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver

That's really great weight. Mine, 24/24h t800 are 1420g. 200g of savings is pretty awesome.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on December 02, 2024, 03:03:13 AM
Got an order in for the promo wheelset, should be around 1250g. Now I'm anxiously waiting, I hope the shipping time won't be more than a month.
Had contact with Allen via WhatsApp, apart from the weirdness of ordering something via WhatsApp, the experience was great, friendly, quick and helpful respones.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on December 02, 2024, 03:08:21 AM
Got an order in for the promo wheelset, should be around 1250g. Now I'm anxiously waiting, I hope the shipping time won't be more than a month.
Had contact with Allen via WhatsApp, apart from the weirdness of ordering something via WhatsApp, the experience was great, friendly, quick and helpful respones.
I've ordered the 13 of november and the wheels are ready to ship today.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on December 02, 2024, 03:24:38 AM
Thanks for the info, that sounds reasonable. I would want them at the end of January to arrive at the latest. If it does not get stuck in customs, that should work out then.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: zett on December 02, 2024, 04:17:18 AM
My wheelset finally arrived. Peter asked me to post a review which I'll gladly do! The wheelset uses D50CU-28 rims with the in-house hubs and CX ray style spokes. As a specialty I ordered the variant without nipple holes. This makes for a painless and more reliable tubeless setup for just a little bit extra cost. Wheelset came in slightly lighter than expected at around 1330 g. So far I've put on GP5000 S TR tires which was indeed painless to do, it worked much better than on my older rims for some reason. No tricks needed, just put on the tires, a bit of pumping, done. I'm still waiting for other parts for my bike build, so I haven't used them yet, but from what I can see, everything is solid and they run perfectly true, too. Freehub sound at first seemed extremely loud, but with tire and cassette installed, it now sounds a bit muffled and much better.

Edit: by the way, I also ordered a spare freehub (because I've always had bad luck with freehub bodies for some reason). This was very reasonably priced, I think at 25 USD.

Edit2: now I see D50CU-28 is now available in T1100 too! Damn those rims are light! Maybe I should have waited a bit lol! I'm still satisfied since my wheelset is really good value for money though, got the basic T800 variant of the rims. The T1100 rims are probably quite a bit more expensive.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on December 03, 2024, 03:21:53 PM
Fat wheels arrived today :)

Happy with the quality. Tyres seated well, but fitting them on the rim was... well, let me just say my fingers huuurt really bad.
28c front 30c back - thanks to SERGE_K guidance. They fit really nice. Also I ordered xc rims and managed to lace the wheels today as well. And I'm really happy with the weight. In a day or two, VB 268 frame should arrive and so will my road bike saga begin.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 05, 2024, 03:13:49 AM
D65CU-33 T1100 rims could be released now, passed through 80J impact testing, 475g/piece UD paintless version.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: kanuto on December 05, 2024, 08:09:47 AM
T1100 D50CU-33 rims 21/21H UD paintless built up with Carbon Speed hubs 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver

How much are they?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: radrick_91 on December 06, 2024, 01:37:01 AM
Hello everyone,
First of all many thanks for all your efforts on the forum, it's great and helps me a lot - keep up the good work.

Based on your experiences and reports I have ordered a wheelset (and handlebar) from Peter. And I can and will pass on your opinion - it was a great experience and the products are really very, very high quality products. Peter helped me a lot, even when my questions were annoying, he always answered immediately and helped me - thank you!

For the wheels I ordered the new D50CU-33 T1100 rims with carbon spokes and Peter's in-house hubs. Weight 1,225 gr. The plan is to use 30mm tyres. When I have fitted them I can give an update on the actual width of the tyres if you are interested.

I am also happy with the integrated handlebars, I just have to look for suitable spacers.

(http://)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on December 06, 2024, 04:12:03 PM
Guys I've notived the rear wheel is out of dish, and it bothers my ocp. Difference is not negligible, 4mm, or in other words, double the distance. On one side there's 4.1mm distance to the rim, and the other - 8mm. I know how to dish it, but it shouldn't be that big difference imo. And the problem is I don't have the spoke holder to keep the spoke from turning while re-dishing. Can anyone give me advice? I'm willing to try to re-dish it, but if the nipples are glued, and I don't have the spoke holder, that might be pretty impossible i belive.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on December 06, 2024, 11:40:14 PM
Guys I've notived the rear wheel is out of dish, and it bothers my ocp. Difference is not negligible, 4mm, or in other words, double the distance. On one side there's 4.1mm distance to the rim, and the other - 8mm. I know how to dish it, but it shouldn't be that big difference imo. And the problem is I don't have the spoke holder to keep the spoke from turning while re-dishing. Can anyone give me advice? I'm willing to try to re-dish it, but if the nipples are glued, and I don't have the spoke holder, that might be pretty impossible i belive.

I don’t know whether the chain stays typically would be completely symmetrical. drive side needs to clear the chain rings
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on December 07, 2024, 01:08:59 AM
Was thinking about that, but tire is offset with regards to seatpost as well.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Macedingle on December 07, 2024, 02:22:37 PM
Was thinking about that, but tire is offset with regards to seatpost as well.
You really need to put it on a trueing stand and measure it. The bike is not a reliable measurement.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: volan on December 07, 2024, 03:23:28 PM
I stand corrected. Wheels are in perfect dish. It's the vb268 dropouts that are causing slight misalignment. I managed to fix it though. Mea culpa. Wheels are 100% straight, round and dished properly.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 10, 2024, 08:16:54 AM
D45CU-28 T1100 wheels built with in-house 54T rachets TPI ceramic Bearings hubs, carbon spokes with nipples, 1160g/pair
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 10, 2024, 09:05:51 AM
How wide are these spokes? Will hidden nipples be an option at any point? Considering a 65mm t1100 rear wheel when you get the new hubs. (unless I find someone who makes something like a wide, 70 mm deep rim)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 11, 2024, 04:13:17 AM
How wide are these spokes? Will hidden nipples be an option at any point? Considering a 65mm t1100 rear wheel when you get the new hubs. (unless I find someone who makes something like a wide, 70 mm deep rim)
The spokes on that wheelset in my last post is 3.8mm, same as Farsports uses on their wheelset, and 5.0mm too. We have a bit more expensive ones 3.2mm carbon spokes like some big brands use on their wheels as well as attached.
Actually the nipples on carbon spokes are already hidden, they are not like the regular stainless spokes, you can tell from the picture. The nipples on carbon spokes request special tool to screw, that is why almost rims built with carbon spokes have to be drilled with access holes in the rim bead.

We are going to release the new 20/20h hubs for carbon spokes end of this month. So the wheels would be pre-ordered to customize now.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ancientone on December 11, 2024, 04:36:34 AM
Could you tell us which bearings will be used as well ? 6803 , 6903 or others ?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Cnasta on December 11, 2024, 04:48:40 AM
I just ordered a 50mm gloss, carbon spoke, wheelset from Peter with small gold logos on the rim. Communication went good. He replies fast to questions and did send me some photos to helpt me choose. I'll update upon receiving the wheelset. Looking forward :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 11, 2024, 05:06:56 AM
Could you tell us which bearings will be used as well ? 6803 , 6903 or others ?

Current we use these sizes on our 24/24H in-house hubs with enduro steel bearings for regular stainless spokes, and 21/21H hubs 20/20H hubs with TPI ceramic bearings for carbon spokes: 6802 on front hub and freehub, 15267 on rear hub except freehub.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 11, 2024, 05:54:59 AM
The spokes on that wheelset in my last post is 3.8mm, same as Farsports uses on their wheelset, and 5.0mm too. We have a bit more expensive ones 3.2mm carbon spokes like some big brands use on their wheels as well as attached.
Actually the nipples on carbon spokes are already hidden, they are not like the regular stainless spokes, you can tell from the picture. The nipples on carbon spokes request special tool to screw, that is why almost rims built with carbon spokes have to be drilled with access holes in the rim bead.

We are going to release the new 20/20h hubs for carbon spokes end of this month. So the wheels would be pre-ordered to customize now.

Yes, I know the actual part that acts like a nipple on carbon spokes is internal, sorry. What I meant was if there was any possibility of hiding the metal spoke part like Magene and Scope do with stren spokes
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PoulB88 on December 11, 2024, 06:12:27 AM
I am interested in hidden nipples as well - I am unable to read stuff like https://wheellabkr.imweb.me/Blog/?q=YToxOntzOjEyOiJrZXl3b3JkX3R5cGUiO3M6MzoiYWxsIjt9&bmode=view&idx=18095954&t=board (https://wheellabkr.imweb.me/Blog/?q=YToxOntzOjEyOiJrZXl3b3JkX3R5cGUiO3M6MzoiYWxsIjt9&bmode=view&idx=18095954&t=board) and not be affected by it  ;D

Quote
Hidden nipples with 50mm rims is almost as aerodynamic as external nipples with 55mm rims, at a lighter weight
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ancientone on December 11, 2024, 11:35:37 AM
Current we use these sizes on our 24/24H in-house hubs with enduro steel bearings for regular stainless spokes, and 21/21H hubs 20/20H hubs with TPI ceramic bearings for carbon spokes: 6802 on front hub and freehub, 15267 on rear hub except freehub.

Thanks Peter. The reason I asked is because I was told that both Farsports and WindSpace Hyper and Farsport  use 6903 for lower rolling resistance. There is no option to go for 6903 and still stick to ceramic and carbon ?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on December 11, 2024, 01:34:37 PM
I´m curious, what was your production lead time? I ordered my wheelset on the 29. and still dont´t have any information on whether mine is in production or not.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on December 11, 2024, 01:50:26 PM
About 20 days
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sakizashi on December 11, 2024, 06:13:08 PM
I am interested in hidden nipples as well - I am unable to read stuff like https://wheellabkr.imweb.me/Blog/?q=YToxOntzOjEyOiJrZXl3b3JkX3R5cGUiO3M6MzoiYWxsIjt9&bmode=view&idx=18095954&t=board (https://wheellabkr.imweb.me/Blog/?q=YToxOntzOjEyOiJrZXl3b3JkX3R5cGUiO3M6MzoiYWxsIjt9&bmode=view&idx=18095954&t=board) and not be affected by it  ;D
 


FWIW, I tried to reverse Wheel Lab's assertion of watt savings using a rotational drag-only model and think that 20 carbon spokes of this design should be very similar to 24 CXrays with external nipples.

However, Hunt did actual testing of external vs. internal nipples for their Sub50 testing, including the translational component, with external vs. internal nipples that their measured difference was 1/5th of what Wheel Lab claimed (at 0.2-0.3W per wheel). They also showed that blunt trailing edges on the front wheel have similar effects as internal nipples and that they do compound. On the rear wheel, they showed similar gains going 10mm deeper--even though, for weight reasons, they chose not to take that advantage. All of this stuff is very marginal.

If you are running 32mm or 28mm tires, it's hard to see a better value than a pair of D50CU-28 or D50CU-33 with the upcoming 20h hubs if you want a light wheelset, especially if the former is ~1150g. If you are willing to step into the 1250-1300g range, I think some choices are likely a couple of watts faster that are worth the weight tradeoff, though, in this price range, they would be just as unproven.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 11, 2024, 08:15:53 PM
I'm just waiting for one of the bigger players to extend the bladed section and reduce the round section of the spoke of this design as much as possible. Carbon spokes have gotten plenty thin and deep already, so that's the biggest remaining room for improvement in aero. Eyeballing it, the stren spokes on newmen, scope, winspace, cadex, (crw? conflicting info) etc. have it the worst and farsports considerably better, but then they now have those gigantic external nipples, so swings and roundabouts, I guess. Wheellab do have something in the works apparently, but nothing concrete shown yet.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on December 11, 2024, 09:29:30 PM
I'm just waiting for one of the bigger players to extend the bladed section and reduce the round section of the spoke of this design as much as possible. Carbon spokes have gotten plenty thin and deep already, so that's the biggest remaining room for improvement in aero. Eyeballing it, the stren spokes on newmen, scope, winspace, cadex, (crw? conflicting info) etc. have it the worst and farsports considerably better, but then they now have those gigantic external nipples, so swings and roundabouts, I guess. Wheellab do have something in the works apparently, but nothing concrete shown yet.

Thanks for your thoughtful analyses and comments.  I was just wondering what leads to the conclusion that the farsports version is better? I'm assuming you're referring to aero?

I'm also thinking about safety - it seems like none of the options really use bonding to hold the tension anymore which addresses my concern if it is true (I've had some bad experience with carbon adhesive pull-out in another application).
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 12, 2024, 02:52:22 AM
Thanks Peter. The reason I asked is because I was told that both Farsports and WindSpace Hyper and Farsport  use 6903 for lower rolling resistance. There is no option to go for 6903 and still stick to ceramic and carbon ?

Do you think the 6903 bearings can really lower the rolling resistance ? I am not sure, DT Swiss uses same 6802 and 15267 on their hubs. At least so far we haven't any client saying our hubs with high rolling resistance or anything bad. Anyway we use good bearings, maybe just different sizes with others'.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 12, 2024, 03:15:52 AM
I´m curious, what was your production lead time? I ordered my wheelset on the 29. and still dont´t have any information on whether mine is in production or not.

Normally we have the T800 version rims in UD matt available, UD paintless and T1100 version rims have to be customized, so the lead time on these wheels would be around 15-20 days. You changed your order from D50CU-33 T1100 to D50CU-28 T1100 rims on Dec 6, so the rims are still on production and they would be done in 7-8 days from today.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on December 12, 2024, 03:22:56 AM
Thanks for the clarification, peter. I wasn`t aware the rims are basically made to order.

Had to change to narrower rims, because winspace is very stingy on clarifiying their tyre clearance on the slc 3.0...They can`t deliver the measurment of the chainstay gap at the wheel.
Be it as it may, i`m looking forward to the wheelset.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 12, 2024, 06:44:00 AM
Thanks for your thoughtful analyses and comments.  I was just wondering what leads to the conclusion that the farsports version is better? I'm assuming you're referring to aero?

I'm also thinking about safety - it seems like none of the options really use bonding to hold the tension anymore which addresses my concern if it is true (I've had some bad experience with carbon adhesive pull-out in another application).

Yes, aerodynamically, the farsports 5mm spokes are better, othersise the designs sre basically the same.

Yep, LightBicycle made carbon spokes bonded to metal bit for a short while and they were an absolute disaster. There's still someone out there making similar spokes, though they've taken some steps to mitigate the risk. Most of the time they're still an inferior choice though. Their advantages are that they can be a gram or so lighter and fit normal hubs.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ancientone on December 12, 2024, 07:12:38 AM
Do you think the 6903 bearings can really lower the rolling resistance ? I am not sure, DT Swiss uses same 6802 and 15267 on their hubs. At least so far we haven't any client saying our hubs with high rolling resistance or anything bad. Anyway we use good bearings, maybe just different sizes with others'.

Thanks. I'll msg you to confirm the details, price and order.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 12, 2024, 07:19:01 AM
Bigger bearings usually means improved durability, not lower drag
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 12, 2024, 08:24:14 AM
Bigger bearings usually means improved durability, not lower drag

I know, normally on MTB hubs, no? Or mainly on front hubs? We use bigger bearings on our in-house MTB boost hubs for now.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 12, 2024, 08:58:41 AM
On all hubs, but since mtb hubs see much higher and frequent impact loads, bigger bearings are more beneficial on them than road hubs. I think if dt swiss use 6802 on dt180 hubs, then they should be fine for most road riders.

Bigger bearings would theoretically have more drag as they have more balls, but that means the loads are distributed over a larger contact area, meaning the loads on individual balls are lower, meaning they will wear slower. But the larger contact area means there will be marginally more drag, virtually irrelevant amounts for bike applications though. Seals make magnitudes more impact on bearing drag.

The tradeoffs with bearing sizes in hubs are usually size and weight vs durability:
• smaller bearings means lower weight and smaller, fractionally more aero hub
• bigger bearings means better durability against wear and dirt ingress.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sakizashi on December 12, 2024, 01:41:00 PM
On all hubs, but since mtb hubs see much higher and frequent impact loads, bigger bearings are more beneficial on them than road hubs. I think if dt swiss use 6802 on dt180 hubs, then they should be fine for most road riders.

Bigger bearings would theoretically have more drag as they have more balls, but that means the loads are distributed over a larger contact area, meaning the loads on individual balls are lower, meaning they will wear slower. But the larger contact area means there will be marginally more drag, virtually irrelevant amounts for bike applications though. Seals make magnitudes more impact on bearing drag.

The tradeoffs with bearing sizes in hubs are usually size and weight vs durability:
• smaller bearings means lower weight and smaller, fractionally more aero hub
• bigger bearings means better durability against wear and dirt ingress.

I don't know enough about bearings to make a definitive statement on size and choice of bearing regarding size, drag, and durability. I do know enough to know that it's more complex than this, and a first principles approach like this can be really misleading (same as saying X shape is aerodynamically faster based cross-section without taking into account other factors like varying yaw angles)

For example:
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on December 12, 2024, 02:20:55 PM
Thanks for the clarification, peter. I wasn`t aware the rims are basically made to order.

Had to change to narrower rims, because winspace is very stingy on clarifiying their tyre clearance on the slc 3.0...They can`t deliver the measurment of the chainstay gap at the wheel.
Be it as it may, i`m looking forward to the wheelset.

I have a SLC 3.0 in size L. Othersizes may have difference clearances.

The D65-33 fits with plenty of clearance.

Im actually considering buying the D50-36 for my SLC 3. The front would fit easy, the rear most likely fit fine, wouldnt want to go any bigger though
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on December 12, 2024, 02:57:00 PM
I have a SLC 3.0 in size L. Othersizes may have difference clearances.

The D65-33 fits with plenty of clearance.

Im actually considering buying the D50-36 for my SLC 3. The front would fit easy, the rear most likely fit fine, wouldnt want to go any bigger though

Peter would kill me, if i change the rim again :)

I don`t understand some chinese frame manufacturers and their tyre clearance claims. Winspace told me that the chainstay clearance would be already tight with a 32mm tyre...
How many mm on either side of the tyre to the chainstay with your setup?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on December 12, 2024, 03:29:05 PM
On the SLC3 L, the tightest fit is between the widest point of the tire and chainstays. Bit over 38mm measured, so a tire measuring 34-35mm (a 32c gp5000 on a 28iw rim) would be a tight fit. The rim is wider than the tire at 36.6mm but the chainstays spread out enough that they clear this more
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on December 14, 2024, 02:42:45 PM
How do we think the vertical & lateral stiffness/compliance between a 20 carbon spoke wheel and a 24 steel spoke wheel would compare? Data would be better than hypotheses but I understand if it's not available.

I hear of harsher ride being reported on carbon spokes with less perfect road surfaces (ofc also with better aero & weight) but have to expect that 20% fewer spokes may offset that if the baseline was with 24 carbon spokes instead. 
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 14, 2024, 08:28:50 PM
Depends who you ask for the subjective, but usually carbon spoke wheels would still be stiffer. Actual measured data on vertical and rotational stiffness is basically non-existent all we have are lateral stiffness tests. Also, fact is, most carbon spoke wheels are simply overbuilt. We were fine with 20 and 21 steel spokes on the front, why do we need to have just as many carbon spokes? It doesn't make sense.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on December 16, 2024, 09:57:42 PM
Thanks, Toxin.  That's consistent with the rabbit hole of research I've done over the last couple days.  Appreciate the thoughtful discussion here from people more knowledgeable than I.

I want to get my order in but I'm having trouble picking between 3.8mm carbon, 5mm carbon, or steel CX-Ray spokes for my T1100 D50CU-33.  I'm 60kg fwiw and assuming cross winds won't be an issue. 

The extra cost of carbon spokes is significant but if it makes my bike more fun but not noticeably less comfortable on 32c tires or significantly less safe then it's probably worth it for me. 
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PoulB88 on December 17, 2024, 12:56:53 AM
I would think that with 32mm tires at an appropriate pressure for your bodyweight, the type of spokes in the wheel make no discernible difference to the feeling of comfort.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on December 17, 2024, 07:11:05 AM
The stress deformation plots of carbon and steel spokes aren't that different. Carbon spokes just fail at a higher load. No point going 3.8mm over 5mm
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 18, 2024, 04:16:38 AM
Promotion would still last one week through Dec 24. In future, we will list new products onto our website and shopping mall site: www.xmcarbonspeed.cc

Even after promotion closed, please feel free to contact if you had any question or requirement.

Since Chinese lunar new year is coming soon, we have arranged these T1100 rims for stock through the new year holiday (about 20 days): D45CU-28, D50CU-28, D40CU-33, D50CU-33, D65CU-33 rims.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: gajowy on December 19, 2024, 10:08:29 AM
Guys, did you order those wide wheels for the road bike?
Is 34.18 too much for a road bike.
I'm thinking about this wide option but I'm worried about the frame (winspace t1550 2gen). Will it fit the frame. I haven't frame yet so I can not measure it.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on December 19, 2024, 02:46:53 PM
Guys, did you order those wide wheels for the road bike?
Is 34.18 too much for a road bike.
I'm thinking about this wide option but I'm worried about the frame (winspace t1550 2gen). Will it fit the frame. I haven't frame yet so I can not measure it.

I wouldn't be concerned. I think winspace took notes from the western brands, and they understates their tire clearance. I am confident my SLC 3 could clear the D50-36, since I have D65-33 installed and have plenty of clearance.

I would be concerned with some of budget chiner brands, since their sales person likely copied the entire spec sheet from somewhere else, and did no confirmation
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: gajowy on December 19, 2024, 04:12:15 PM
I asked because I am also afraid about ETRTO Standard.
Also watched https://youtu.be/FNKtEhH5KtA?si=kx-Ck3WFdht86ToD screen in attachment. Nobody uses 26 iw for road wheels.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on December 19, 2024, 09:34:08 PM
I asked because I am also afraid about ETRTO Standard.
Also watched https://youtu.be/FNKtEhH5KtA?si=kx-Ck3WFdht86ToD screen in attachment. Nobody uses 26 iw for road wheels.

The ENVE is pretty close... what's 1mm...
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ejump0 on December 19, 2024, 11:51:37 PM
i just placed an order of d50cu-33 with the upcoming 20H hubs after measuring my just arrived ttx38.
looking forward to the arrival of the wheelset , hopefully before cny
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: jadenchinertown192 on December 22, 2024, 04:37:56 PM
Highly recommend Peter and Xiamen Carbon Speed, really good and fast service. Weight was 1211g on my 50/55mms. Answered all my annoying questions and for 650 bucks these wheels are insane value. 1211g, ceramic hubs, carbon spokes, all the works. these are the 21/21 spokes and I don't know the benefits or differences to the new 20spoke ones but I'm excited to get these.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Cnasta on December 23, 2024, 03:55:38 AM
My wheels are being shipped. Dealing with Peter was a perfect experience once again.

Ordered 50mm, gloss with subtle gold details, carbon wheels. Weight is 1221,9gr, which is really good.

Looking forward to receiving the wheels. Just need to buy a frame now :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on December 24, 2024, 07:31:40 AM
Merry Christmas, guys, thanks for all your technical questions and requests, thank you from the bottom of my heart for your trust and support. You are the reason why we keep good quality service and products, make new stuff and move forward. Wish all of you 2025 full of successes and happiness.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on December 24, 2024, 08:34:26 AM
Merry Christmas everyone.  I just got my order in for D50CU-33 with the 20H hubs and carbon spokes, ceramic bearings, etc.  Great communication from Peter and really looking forward to being able to see and test these wheels up close!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Requiem84 on December 25, 2024, 12:59:12 AM
Merry Christmas everyone.  I just got my order in for D50CU-33 with the 20H hubs and carbon spokes, ceramic bearings, etc.  Great communication from Peter and really looking forward to being able to see and test these wheels up close!

Ordered exactly the same with Peter! Communication great again, same as with my gravel wheelset.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 04, 2025, 10:41:08 AM
New 20/20H hubs released. And the T1100 wheelsets some guys ordered before promotion closed would be shipped out in 7-10 days.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: biceryder on January 04, 2025, 07:35:46 PM
Hey, just another shoutout to Peter.  Extremely easy to deal with. Answered all questions in a timely manner.  I ordered a frame in NOV and received it in 4 weeks.  Very happy with my purchase experience thus far.  See the CS-R01 thread for my build.

Thank you Peter!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Cnasta on January 06, 2025, 07:38:32 AM
Allready received my wheels, even faster than expected. They look stellar! Box got a bit of a beating (as usual), but wheels are fine.

Also received the 2 bottle cages and a MTB-stem.

Now I just need to buy me a frame :D

For those in doubt: just order with Peter and be happy :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 06, 2025, 10:03:55 AM
D40CU-33 40mm depth 26mm inner width 33mm outer width T800 wheels UD matt built with in-house hubs 36T enduro steel bearings, Sapim CX-Ray spokes, Sapim self-securing aluminum nipples
About 1340g/pair, 480 USD/pair excluding shipping.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 06, 2025, 10:13:18 AM
And new combo wheelset 20/20H carbon spokes hubs built with  D50CU-33 T1100 rims UD paintless was just released, around 1180+/-20g/pair
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Icyseanfitz on January 06, 2025, 11:23:52 AM
And new combo wheelset 20/20H carbon spokes hubs built with  D50CU-33 T1100 rims UD paintless was just released, around 1180+/-20g/pair

How much for these Peter? Btw do you have any lightweight MTB wheelsets?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 06, 2025, 11:55:20 PM
How much for these Peter? Btw do you have any lightweight MTB wheelsets?
Yes, we do have light weight MTB wheelset. And that combo wheelset would be $850/pair without promotion.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wintermute on January 07, 2025, 12:52:49 PM
The weights are so light - I do worry that we're suffering Keith bontragers proclamation about light cheap and strong.

Loads of exploding farsports rims hitting normal potholes and bumpy road riding or gravel riding - xmc confident their rims are stronger? T1100.is very stiff and light but not very flexible / resilient


Or do they think that was because of overtensioned carbon spokes?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 07, 2025, 06:19:54 PM
Like I say to most guys who order gravel wheels, we suggest them taking T800 rims, even T700 version for gravel use if they are heavy. T1100 version is more suitable for road use. It's obvious you can't keep lightweight, strong, cheap on same rim for all kinds of use. Just like you can't do lightweight wide XC MTB rims for AM or Enduro use.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on January 08, 2025, 05:50:57 PM
how much do the 20h hubs weigh?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 08, 2025, 06:57:30 PM
how much do the 20h hubs weigh?

Since the spoke tension on carbon spokes is much higher than regular stainless spokes, to make sure stable quality, we don't make these hubs extremely light like someone else do, our new 20/20H straight through version hubs weigh around 290g
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on January 08, 2025, 08:39:29 PM
Is it possible to get the hubs anodised in a custom colour?

Still in the middle of running cfd to decide which rims I go for. XMCS 65 with carbon spokes is a candidate for the rear. Sadly all off the shelf carbon spoke hubs are minimum 20 spokes at the front, so will have to go with steel for that.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 08, 2025, 08:49:06 PM
Is it possible to get the hubs anodised in a custom colour?

Still in the middle of running cfd to decide which rims I go for. XMCS 65 with carbon spokes is a candidate for the rear. Sadly all off the shelf carbon spoke hubs are minimum 20 spokes at the front, so will have to go with steel for that.
Sorry, negative for just single hub to do anodised custom color. Unless we happen to do the exact color anodising as you want, but mostly it won't happen, ours hubs are anodised in black or titanium color.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on January 09, 2025, 12:52:36 AM
Wheels received Yesterday, weight confirmed at 1209 gr for T1100 D50CU-33 rims 21/21H UD paintless
Taped with 30mm tubeless tape without any problem
Complete wheelset included Shimano mt800 160+140 , gp5000stlr 32mm and ztto slr gen3 cassette
Total weight Is 2205 gr
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on January 09, 2025, 06:35:51 AM
Got my D50CU-28 T1100 in the Mail. Wheels look great, packaging is very good and overall quality seems to match expectations.

One caveat are the actual rim measurments. Actual measurments are 22mm internal and 29mm external instead of 21.4mm internal, 29,2mm external.
With the wider internal and narrower external width a 28mm gp5000 s tr measures 29mm and sits flush with the rim profile, so no rule of 105% to achieve here, if your don't want to have a 25mm tyre, which most of us certainly will not want. So in some way the rim profile is neither here nor there, neither fit for narrow nor really fit for wide tyres. I will get on with it, but this difference to the advertised measurments is the worst difference you can have in a rim profile. Both rims measure the same btw, so i don't think this is a unit variation problem.

Measurements done with a digital caliper and at multiple locations.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: acino on January 09, 2025, 09:19:10 AM
I find complaining about 0.7% difference in measurements quite remarkable.

Also, how confident are you that 0.6 mm narrower rim would give you actual tire width that conforms to the 105% rule?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on January 09, 2025, 09:29:35 AM
29mm is the fastest tyre size on rhat rim at low yaw
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: acino on January 09, 2025, 09:30:16 AM
I received my pair of D50CU-33 T1100 just before Christmas. With CX sapim spokes and inhouse hubs - weight of 1320 g. A bit higher weight because opted for rims without holes and as I learned, it means no carbon spokes available. I also opted for brass nipples. Built with GP5000 TR 30mm, real width 33 mm, and a total weight with ultegra cassette, 2x160mm disc rotors and aliexpress valves - 2440g. Excellent quality, beautiful hubs. Only done about 120 km so far, due to shitty weather and snow here in Switzerland, but really happy with it so far.

Excellent service and support from Peter!

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TidyDinosaur on January 09, 2025, 09:51:13 AM
I find complaining about 0.7% difference in measurements quite remarkable.


Yeah, those are rounding errors... And why would you complain about wider rims these days :)

But hey, if you can't keep up with the next group ride, you know what the problem is...  ::) It's that 0,001% deviation...
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on January 09, 2025, 11:13:57 AM
I forgot I'm in a cercle jerk. I'm just pointing out a difference in the rims from advertised measurments. I thought more information is always better. In the end you can take any learning from it that you want.

As you read in my post I'm very pleased with the overall quality. Following the 105 rule is obviously rather anal, but the original rim profile is designed to follow it, why wouldn't you want to know that it measures a bit differently.

I ride a lot in crosswinds so a good performance at yaw angles larger than 0 is a feature I want in a wheelset.

Would I be not satisfied with the wheels, I would have send them back, but I didn't.

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ancientone on January 09, 2025, 11:40:04 AM
Got my D50CU-28 T1100 in the Mail. Wheels look great, packaging is very good and overall quality seems to match expectations.

One caveat are the actual rim measurments. Actual measurments are 22mm internal and 29mm external instead of 21.4mm internal, 29,2mm external.
With the wider internal and narrower external width a 28mm gp5000 s tr measures 29mm and sits flush with the rim profile, so no rule of 105% to achieve here, if your don't want to have a 25mm tyre, which most of us certainly will not want. So in some way the rim profile is neither here nor there, neither fit for narrow nor really fit for wide tyres. I will get on with it, but this difference to the advertised measurments is the worst difference you can have in a rim profile. Both rims measure the same btw, so i don't think this is a unit variation problem.

Measurements done with a digital caliper and at multiple locations.

I don't think it's going to make much of a difference but it's always good to know and feedback. :-) I think it's sort of expected if you buy parts from China although I think Peter held himself to a different standard.

I order a 52mm headset bearing once and the seller send me a 51mm, and claim that it was variance due to manufacturing... that was a WTF moment since all the bearings I had bought previously was precise to 0.1mm.

Anyway, looking forward to the rims from Peter. Still thinking about the Frameset though...
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on January 09, 2025, 11:57:55 AM
As you read in my post I'm very pleased with the overall quality. Following the 105 rule is obviously rather anal, but the original rim profile is designed to follow it, why wouldn't you want to know that it measures a bit differently.

Rule of 105 is horseshit, it's the closest to useful at 0 yaw and even then it's not accurate. As soon as you start adding any yaw, it breaks down completely
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wintermute on January 09, 2025, 01:31:55 PM
Rule of 105 is horseshit, it's the closest to useful at 0 yaw and even then it's not accurate. As soon as you start adding any yaw, it breaks down completely

Saying it breaks down completely is even more facetious than saying if don't abide to the 0.1mil you may as well run box sections.

So you think brr drum tests are meaningless because 'nOt ReEl LiFe'.  ;D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Icyseanfitz on January 09, 2025, 02:05:29 PM
Just measured my dc50u wheels which should have an internal width of 21.4, pretty much spot on at 21.5 and that could just be a fault in my calipers
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on January 09, 2025, 03:38:43 PM
Saying it breaks down completely is even more facetious than saying if don't abide to the 0.1mil you may as well run box sections.

So you think brr drum tests are meaningless because 'nOt ReEl LiFe'.  ;D

Im saying this because I've run cfd simulations on various rim shapes with various tyre sizes. 105 just has no meaning
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sakizashi on January 09, 2025, 05:17:23 PM
I think its a good idea to verify dimensions. There seem to be a pretty wide tolerance on rims and tires that I have seen. This is on the higher side of the small sample size I have measured, but not insane. Lets also remember that your calipers are not perfect either.

Regarding 105--this "rule" was christened in an era of different wheel shapes, narrower tires, and rim brakes. It's also often misused in forums in reverse of what it was intended for. It was to help you select the best tires for a given wheel, not the other way round. Its been abused and misused and isn't relevant anymore.

Rim profiles matter. The fastest U-shaped profiles for a front wheel can be a watt or more faster, particularly at shallow yaws, but the air detaches so much sooner that they aren't used as much anymore. I think the Hunt Sub50 paper documents this pretty well when they cover all the rim shapes they tested. If I remember correctly and did the math right at 48kph the fastest profile suffered detachment a few degrees earlier, but was like 1.5w faster. Is it worth it to optimize at that level? I guess it depends on you, but following the rule of 105 on a rim that's not the right shape for that rule to apply wont get you very far.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Lotnik on January 10, 2025, 04:47:44 AM
And new combo wheelset 20/20H carbon spokes hubs built with  D50CU-33 T1100 rims UD paintless was just released, around 1180+/-20g/pair
How does lacing pattern looks like on that wheels? Front and rear?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on January 10, 2025, 10:01:45 AM
Im saying this because I've run cfd simulations on various rim shapes with various tyre sizes. 105 just has no meaning

That great that you disproved a BS 25yo wind tunnel test with an even more BS CFD analysis.


I actually skip wind tunnel testing and CFD analysis, I acquire a rim profile in a .jpg file format and scanning with my eyes I am able to calculate the aero performance of a particular tire-rim transition with a 100% margin of error
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on January 10, 2025, 08:32:57 PM
A quick teaser. More details later...
Thank you Peter!!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on January 11, 2025, 03:32:58 AM
build my wheels with gp5000 S TR 32mm and they are 34-35mm real
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on January 11, 2025, 10:52:44 AM
Got my first ride in, 2h30 Z2 at 0°C and wet roads, so can't say anything about the finer riding characteristics, but overall I like the wheels very much. Running 28mm front and 30 rear, which measure 29mm and 31mm respectively. Both tyres at 4bar/58psi, setup tubeless. That is the 50mm deep 29 rim outer 22mm inner width btw.

First impression is that the wheels strike a good balance of stiffness and compliance. The ride is firm, but not harsh, road vibrations are kept in check. Obviously that combination of tyre width and inner rim width doesn't provide a plushy ride, but they feel non fatiguing to me with my setup. Road conditions here are pretty bad and I made an effort to not avoid road cracks etc.

Cross wind stability is alright. Large close passing cars do create a small tuck, but I also tend to have a light grip on my handlebars. Steering always corrected itself and I didn't feel the need to preemptively brace myself for any passing car.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on January 11, 2025, 04:18:45 PM
build my wheels with gp5000 S TR 32mm and they are 34-35mm real

 Not surprised the tire ballooned up with that wheel/tire combo. Def outside recommendations. Are you using tubes or going tubeless ?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: c.etzo on January 12, 2025, 12:52:12 AM
Not surprised the tire ballooned up with that wheel/tire combo. Def outside recommendations. Are you using tubes or going tubeless ?
Tubeless
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on January 12, 2025, 05:41:52 PM
That great that you disproved a BS 25yo wind tunnel test with an even more BS CFD analysis.


I actually skip wind tunnel testing and CFD analysis, I acquire a rim profile in a .jpg file format and scanning with my eyes I am able to calculate the aero performance of a particular tire-rim transition with a 100% margin of error

What specifically makes you say his particular cfd analysis is bs? I'm interested in seeing the details.  Maybe he has deep expertise and validation data at his disposal. Maybe not. idk.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on January 12, 2025, 05:47:37 PM
Not surprised the tire ballooned up with that wheel/tire combo. Def outside recommendations. Are you using tubes or going tubeless ?

Are you suggesting this is an issue or a good thing or NBD?  I need to decide what tires to run on mine.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on January 12, 2025, 06:09:20 PM
Just a quick update on my order.

D50CU-33 w/new in-house straight through hubs & 5mm width carbon spokes are ready to ship. 

They look great in the picture and the weight is impressive.

Thanks all for your help and of course to Peter for being so patient and helpful with me as well as for making these wheels available.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on January 12, 2025, 07:52:24 PM
Just a quick update on my order.

D50CU-33 w/new in-house straight through hubs & 5mm width carbon spokes are ready to ship. 

Thanks all for your help and of course to Peter for being so patient and helpful with me as well as for making these wheels available.

Incredible. I went with the same rims and hubs, but different/thinner carbon spokes.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Trilobite on January 13, 2025, 09:43:06 AM
They look so great. Hope I receive my D50CU-33 wheels soon too  ;D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patto3 on January 13, 2025, 08:06:44 PM
Incredible. I went with the same rims and hubs, but different/thinner carbon spokes.

Excited to hear your review Pat! You've got a wealth of knowledge with testing wheels, and these currently represent the best value/specs (ultra lightweight, carbon spoke, wide int/ext) for money by FAR!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PoulB88 on January 16, 2025, 06:00:19 AM
Just a quick update on my order.

D50CU-33 w/new in-house straight through hubs & 5mm width carbon spokes are ready to ship. 

They look great in the picture and the weight is impressive.

Thanks all for your help and of course to Peter for being so patient and helpful with me as well as for making these wheels available.

I'm still considering these with the 65mm rim (T1100 or T800 TBD), has anyone ordered this configuration?

Also regarding spokes, is there somewhere to compare the different carbon options?

Usecase: Spez Venge '20, road racing flat/tiny hills. 30mm tubeless GP5000s. 82kg cat C.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 16, 2025, 08:06:55 AM
D65CU-33 T1100 20/20H UD paintless wheelset built with 5.0mm carbon spokes weigh around 1315g/pair, sorry, not able to attach pictures for now
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: stachu on January 16, 2025, 11:31:40 AM
In case if there is anyone else interested in the "old school" rim brake version mine just have arrived.
R50TL-26 tubelss compatible rims / 19mm inner width / 26mm outer width rim brake rims 20/24H UD matt
Total weight 1410g
Wheels look amazing. Because of the weather, I will need to wait few more weeks to share something about the ride feel, and braking performance (my biggest worry).
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on January 17, 2025, 07:50:01 PM
Quite frankly I have nothing negative to report or criticize. Easily the lightest and best set of wheels I've used from a value perspective. Mother nature gave me one single day today above freezing, and I was able to get in a 3 hour ride Z2 ride with some intervals mixed in.

GP5000 STR 32c. Running actual tubeless to avoid another audience upheaval on my YouTube. Tires measure 34mm at the rim. 55 PSI

Video drops next week.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: jadenchinertown192 on January 18, 2025, 12:56:11 AM
Quite frankly I have nothing negative to report or criticize. Easily the lightest and best set of wheels I've used from a value perspective. Mother nature gave me one single day today above freezing, and I was able to get in a 3 hour ride Z2 ride with some intervals mixed in.

GP5000 STR 32c. Running actual tubeless to avoid another audience upheaval on my YouTube. Tires measure 34mm at the rim. 55 PSI

Video drops next week.

These vs the CRWs and Farsports S5?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Icyseanfitz on January 18, 2025, 01:54:50 AM
Quite frankly I have nothing negative to report or criticize. Easily the lightest and best set of wheels I've used from a value perspective. Mother nature gave me one single day today above freezing, and I was able to get in a 3 hour ride Z2 ride with some intervals mixed in.

GP5000 STR 32c. Running actual tubeless to avoid another audience upheaval on my YouTube. Tires measure 34mm at the rim. 55 PSI

Video drops next week.

Look great, can't wait to see your video on them, seems like we all went with gold decals
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Macedingle on January 18, 2025, 09:07:22 AM
Quite frankly I have nothing negative to report or criticize. Easily the lightest and best set of wheels I've used from a value perspective. Mother nature gave me one single day today above freezing, and I was able to get in a 3 hour ride Z2 ride with some intervals mixed in.

GP5000 STR 32c. Running actual tubeless to avoid another audience upheaval on my YouTube. Tires measure 34mm at the rim. 55 PSI

Video drops next week.
Please test them with TPU tubes as well, so you can compare to everything else you have ridden!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on January 18, 2025, 03:58:38 PM
Sent you a PM about wheels. Maybe a email would be better ?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patto3 on January 18, 2025, 04:30:12 PM
Quite frankly I have nothing negative to report or criticize. Easily the lightest and best set of wheels I've used from a value perspective. Mother nature gave me one single day today above freezing, and I was able to get in a 3 hour ride Z2 ride with some intervals mixed in.

GP5000 STR 32c. Running actual tubeless to avoid another audience upheaval on my YouTube. Tires measure 34mm at the rim. 55 PSI

Video drops next week.

Looking forward to the review Pat, they look amazing on the SL8 too, I thought they might look a bit too wide but not the case at all.

Curious if you will notice a difference in feel with the GP5000 STR tubeless, instead of with TPU tubes. I bought a new bike with the STRs + TPU tubes and they felt so...numb I guess, coming from the GP5000 clinchers+TPU's I was running on my other bike. I even noticed when I flick them they would give a dull thud, where as the clincher+TPU would give a nice balloony 'ting'.

I'm currently on Shimano C60 wheels, but would gladly consider selling them for these if they seem good. Save myself 250g or so, wider profiles so I can comfortably run 32mm tires for that smoother ride!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sebastian on January 19, 2025, 12:21:12 AM
@Peter: Any chance you will make a rim with 34mm external width but more like 23mm internal? I think an inner width of 26 is excessive for road tires. Even for 32s it's a bit much. And personally, I also think it hurts comfort. If tires are too stretched out on the rim they don't feel as supple anymore. Tubeless helps. But it would still feel better with a bit less internal width, IMO.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 19, 2025, 06:51:29 AM
@Peter: Any chance you will make a rim with 34mm external width but more like 23mm internal? I think an inner width of 26 is excessive for road tires. Even for 32s it's a bit much. And personally, I also think it hurts comfort. If tires are too stretched out on the rim they don't feel as supple anymore. Tubeless helps. But it would still feel better with a bit less internal width, IMO.
We might consider to make 23-24mm internal width rims this year,  but I don't think outer width on these rims would be 34mm that wide, it should be around 31mm.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: pavlo.k on January 19, 2025, 07:36:28 AM
Finally got my hands on the wheelset and so far I'm happy with it. 65mm rim with 26mm internal with in-house hubs and pillar 1420 spokes weight just under 1500g. The paintless finish looks fantastic. 30mm Schwalbe Pro one measures around 33mm and sits flush with the rim
After using this wheelset for hundreds of kilometers, I'm quite happy with the wheels overall. There's one drawback however worth mentioning. I use my tires tubeless and when deflated, the bead tends to unseat probably due to the width of the rim. It might not be a problem for most but since I travel a lot with my bike on the plane and you are always required to deflate the tires that's quite annoying. Once unseated the sealant starts leaking and you have to seat your tire at the destination and I don't carry a floor pump with me. I'll try adding a bit more sealant and hope it will glue the bead in place.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: maza on January 19, 2025, 09:27:49 AM
It might not be a problem for most but since I travel a lot with my bike on the plane and you are always required to deflate the tires that's quite annoying.
Apart from airline regulation there is no real reason to deflate tires for flights. Airline has never checked mine so have flown with normal pressure.
Title: Stacey…..
Post by: Rebel_Yell on January 19, 2025, 04:19:06 PM
How much did the wheels cost you if you don’t mind me asking?  Looking for a budget set of carbon wheels for my old CAAD 10!

Thx
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Pistonbroke on January 21, 2025, 09:34:59 AM
Meant to reply to this ages ago, and seeing Patrick's YouTube today reminded me...
Peter kindly agreed to make the following for a monster gravel bike, and the results are absolutely brilliant...

D40CU-33 T1100 rims UD paintless 28/28H
Carbon Speed in-house ratchet boost hubs with steel bearings 6 bolts straight pull for 110*15/148*12 with Shimano HG driver
Sapim CX-Ray spokes
Sapim self-securing brass nipples

Had a month or so on them now and they've been great!
Thanks again Peter, outstanding wheels!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: DrRoB on January 21, 2025, 11:41:20 AM
Meant to reply to this ages ago, and seeing Patrick's YouTube today reminded me...
Peter kindly agreed to make the following for a monster gravel bike, and the results are absolutely brilliant...

D40CU-33 T1100 rims UD paintless 28/28H
Carbon Speed in-house ratchet boost hubs with steel bearings 6 bolts straight pull for 110*15/148*12 with Shimano HG driver
Sapim CX-Ray spokes
Sapim self-securing brass nipples

Had a month or so on them now and they've been great!
Thanks again Peter, outstanding wheels!

I would also be very interested in a similar wheelset. How much would your above set cost?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Pistonbroke on January 21, 2025, 12:12:59 PM
I would also be very interested in a similar wheelset. How much would your above set cost?

PMd you.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Robatki94 on January 22, 2025, 03:48:19 AM
We might consider to make 23-24mm internal width rims this year,  but I don't think outer width on these rims would be 34mm that wide, it should be around 31mm.

A wide rim in the 55-60mm range would make a perfect rear wheel to match with the 50/33 front, something similar to Roval CLX II or ENVE SES 4.5
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Uberflo on January 22, 2025, 09:46:04 AM
Just ordered a D65CU-33 wheelset with 5 mm carbon spokes from Peter. I will report when they arrive.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on January 22, 2025, 10:02:55 AM
It seems like xiamencarbonspeed is gaining some heavy traction. Even on a german forum more people are looking into them and are buying wheelsets. I hope xiamencarbonspeed can keep up their good quality to price ratio. Price hike upcoming with the increased demand?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on January 23, 2025, 06:33:55 AM
It seems like xiamencarbonspeed is gaining some heavy traction. Even on a german forum more people are looking into them and are buying wheelsets. I hope xiamencarbonspeed can keep up their good quality to price ratio. Price hike upcoming with the increased demand?
Thanks for your attention and feedback. We are on Chinese Lunar new year holiday now, don't worry, as I said in my first post, we will keep up our quality products and service as over the years, I believe our top grade quality products are still most cost-effective, the pricing should be very reasonable.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ejump0 on January 30, 2025, 08:14:54 AM
i just got my xmcs d50cu-33 wheelset from peter, well packed. peter notified me item should have arrived, but i was away on vacation.

wheelset arrives at 1167g.
my setup:
- d50cu-33 with 20H straightpull spokes
- rt-cl900 140 rotors
- tpu tubes
- michelin power cup 28mm clinchers

the powercup ballooned to 32mm. powercup clinchers are inown/reported to size bigger than advertised.

already got 160km of ride on my tt912 frame(my x38 build got delayed), the front really absorb more road buzz compared to my 77/86 with fron gp5k 28mm.
speed wise i cant tell if its any faster to my 77/86, as different tires.
but in crosswinds, its so much easier to handle the fronts.
chainstay clearance kinda tight  ::)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Dan S. on January 31, 2025, 03:32:52 AM
chainstay clearance kinda tight  ::)

That's a snug fit indeed  ;D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: mrpercussive on January 31, 2025, 08:13:36 AM
i just got my xmcs d50cu-33 wheelset from peter, well packed. peter notified me item should have arrived, but i was away on vacation.

wheelset arrives at 1167g.
my setup:
- d50cu-33 with 20H straightpull spokes
- rt-cl900 140 rotors
- tpu tubes
- michelin power cup 28mm clinchers

the powercup ballooned to 32mm. powercup clinchers are inown/reported to size bigger than advertised.

already got 160km of ride on my tt912 frame(my x38 build got delayed), the front really absorb more road buzz compared to my 77/86 with fron gp5k 28mm.
speed wise i cant tell if its any faster to my 77/86, as different tires.
but in crosswinds, its so much easier to handle the fronts.
chainstay clearance kinda tight  ::)

damn that's light... the more i'm reading through this thread the more intrigued I am for my next build!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wintermute on February 04, 2025, 10:41:22 AM
Just another data point - my DC50U's on 20H 5mm carbon spokes and a Shimano freehub came in at 1180g, so a bit heavier than others.

Box a bit smashed up but the wheels were fine and ok. Seem true, haven't tested spoke tensions or ridden yet.

This was for UD paintless glossy though, so people buying without a coating on may save 10-15g.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TommyGun on February 05, 2025, 07:01:52 AM
Just another data point - my DC50U's on 20H 5mm carbon spokes and a Shimano freehub came in at 1180g, so a bit heavier than others.

Box a bit smashed up but the wheels were fine and ok. Seem true, haven't tested spoke tensions or ridden yet.

This was for UD paintless glossy though, so people buying without a coating on may save 10-15g.
Could you share some photos of your wheels? Am interested how UD paintless glossy looks like on these.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: maza on February 05, 2025, 07:34:05 AM
Are carbon spokes worth it? I'm worried they ride harsh and are more difficult to tension due to less stretching nature of the material. Looks and weight are great - price also justifiable. But are they actually better as for ride quality, serviceability and longevity?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: McMadigan on February 05, 2025, 08:22:55 AM
What do you think of the MARBLE surface?


Does anyone have rims with this design?


I find them very interesting.

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Gloopann on February 05, 2025, 12:31:20 PM
Are carbon spokes worth it? I'm worried they ride harsh and are more difficult to tension due to less stretching nature of the material. Looks and weight are great - price also justifiable. But are they actually better as for ride quality, serviceability and longevity?

Carbon spokes are only really better for weight and maaaybe a bit of aero, but they will in general ride harsher, harder to service, easier to break (I've seen carbon spokes break when the rider in front kicked up a loose pebble into the wheel of the rider behind). They will feel stiffer but it's up to you to decide if you want or like that. In my opinion, if Pogačar can win every race under the sun with steel spokes, I believe you can too.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sam on February 05, 2025, 02:10:43 PM
How loud are the hubs offered by Xiamen Carbon Speed? Is the freehub very "waspy" sounding? I only ask as Im not a fan of loud hubs (maybe one of the few now).
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wintermute on February 05, 2025, 04:09:21 PM
Could you share some photos of your wheels? Am interested how UD paintless glossy looks like on these.

I asked for simple small logos with ud paintless glossy.

I've always thought that the matte carbon look just has a cheap open mould feel to it. I get it's the lightest option. The finish is really quite nice though on these.

My main worry is of course that they just won't survive the first rough road surface I hit nor will they survive the gravel racing I have planned. That and I won't be able to get a 30c tyre to meet rule of 105.

However, they were competing for my money with some LB Turbo 50's. To get the turbo 50's competitive in weight meant alpina hyperlight spokes and dt 180 hubs. That was 1980USD shipped (and that was at black friday prices, normally more like 2100). These were 870USD shipped.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: ry on February 05, 2025, 06:32:48 PM
How loud are the hubs offered by Xiamen Carbon Speed? Is the freehub very "waspy" sounding? I only ask as Im not a fan of loud hubs (maybe one of the few now).

I got one of the "new ones" and it was (fortunately) quieter than I expected.  I think you can change the sound significantly by packing with grease.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TommyGun on February 05, 2025, 11:53:50 PM
Are carbon spokes worth it? I'm worried they ride harsh and are more difficult to tension due to less stretching nature of the material. Looks and weight are great - price also justifiable. But are they actually better as for ride quality, serviceability and longevity?
I will buy only carbon spoke wheels from now on. Have now already several carbon spoke wheels and the differance is noticable. Much better acceleration, stiffness,... And I find them just as comfortable as steel spokes. And if one worries about that, just drop a few psi in you tyres. The rolling resistance differance will be practicly zero, but you add comfort.

Service? Still not needed. And 2 sets have +10k km, and one set a bit bellow 10k km. I have about 80kg and do lots of steep climbing with lots of out of the saddle outbursts.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: jes2k13 on February 07, 2025, 07:10:01 AM
Quite frankly I have nothing negative to report or criticize. Easily the lightest and best set of wheels I've used from a value perspective. Mother nature gave me one single day today above freezing, and I was able to get in a 3 hour ride Z2 ride with some intervals mixed in.

GP5000 STR 32c. Running actual tubeless to avoid another audience upheaval on my YouTube. Tires measure 34mm at the rim. 55 PSI

Video drops next week.

Pat yo, love the video dude amazing now I am more drawn into ordering one,
If you could tell us the specs of the custom wheel build you had on your video? so I could replicate that?
Looking to get that 1200 1100gm wheelset heck even 1000gm with 40-45mm depth combo if ever that option exist with Xiamen Carbon Speed
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TommyGun on February 07, 2025, 02:00:12 PM
¸..... There's one drawback however worth mentioning. I use my tires tubeless and when deflated, the bead tends to unseat probably due to the width of the rim. ......
Did someone elso also notice that?
When deflating, that tyre comes from the rim bed?

This is kind of problematic issue. Not only for traveling, but also for simple periodicly sealant check. And with possible bigger puncture, you probably cannot just insert a plug, as maybe you will not be able to seat the tyre with mini pump or CO2 cartridge.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on February 07, 2025, 09:26:49 PM
Pat yo, love the video dude amazing now I am more drawn into ordering one,
If you could tell us the specs of the custom wheel build you had on your video? so I could replicate that?
Looking to get that 1200 1100gm wheelset heck even 1000gm with 40-45mm depth combo if ever that option exist with Xiamen Carbon Speed

Thank you sir. These are the rims below. Just let Peter know the specific specs for the lightweight version/hubs/matte finish. Or that you want wheels similar to mine, and he will take care of the rest.

https://www.xmcarbonspeed.com/Productinfo.asp?f=1658
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: glepore on February 08, 2025, 09:34:23 AM
Did someone elso also notice that?
When deflating, that tyre comes from the rim bed?

This is kind of problematic issue. Not only for traveling, but also for simple periodicly sealant check. And with possible bigger puncture, you probably cannot just insert a plug, as maybe you will not be able to seat the tyre with mini pump or CO2 cartridge.

Its a giant safety issue on the road. Good grief, they almost banned hookless in the peloton over this. New rules require strict ETTRO compliance regarding tire size/internal width. So I don't know if was the poster or the rim, but that needs attention.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TommyGun on February 08, 2025, 02:21:28 PM
Its a giant safety issue on the road. Good grief, they almost banned hookless in the peloton over this. New rules require strict ETTRO compliance regarding tire size/internal width. So I don't know if was the poster or the rim, but that needs attention.
Definately a big safety risk.
I think I heard from some CRW wheels users also have this issue.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on February 08, 2025, 02:52:49 PM
Its a giant safety issue on the road. Good grief, they almost banned hookless in the peloton over this. New rules require strict ETTRO compliance regarding tire size/internal width. So I don't know if was the poster or the rim, but that needs attention.

One person here is running a 26mm internal width rim and a 30 mm tire. Any chart I seen recommends a 35mm tire. At the end of the day people will do what they want and blame the product for their choices.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wintermute on February 08, 2025, 02:57:32 PM
One person here is running a 26mm internal width rim and a 30 mm tire. Any chart I seen recommends a 35mm tire. At the end of the day people will do what they want and blame the product for their choices.

Pretty sure ETRTO or whatever is 5mm greater than rim width.

Obviously, the issue here is finding a 32mm tyre that doesn't blow out beyond 105%.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on February 08, 2025, 03:11:15 PM
Pretty sure ETRTO or whatever is 5mm greater than rim width.

 I didn't realize this (5mm or greater) and cannot find anything about it officially. Regardless of what anyone says the charts are there to limit liability if there is an accident.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: srf0638 on February 09, 2025, 07:14:00 PM
D65CU-33 T1100 20/20H UD paintless wheelset built with 5.0mm carbon spokes weigh around 1315g/pair, sorry, not able to attach pictures for now

Do you have a max rider weight for these? Also curious about max rider weight for same build with tbe D50CU-33. Thanks.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Uberflo on February 10, 2025, 12:35:57 AM
I asked Peter as I ordered two sets of wheels (65/33, 50/36). It’s 120 kg.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: srf0638 on February 10, 2025, 12:38:28 PM
I asked Peter as I ordered two sets of wheels (65/33, 50/36). It’s 120 kg.

Carbon spokes and 20h? Dang, that's pretty solid. Thanks.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: bobones on February 10, 2025, 02:56:04 PM
Its a giant safety issue on the road. Good grief, they almost banned hookless in the peloton over this. New rules require strict ETTRO compliance regarding tire size/internal width. So I don't know if was the poster or the rim, but that needs attention.
You're confusing tyres blowing off over the rim and tyres falling off the bead lock into the rim well. The latter is no more dangerous than how a normal clincher tyre behaves on a non-tubeless rim when fully deflated. The former is the problem for hookless wheels, and is of course, very dangerous.

In any case, I've mounted GP5k and P Zero Race RS to my XMCS wheels, and they have stayed securely locked when the tyre is flat, even when rolled along the ground in this state. I'd go as far as saying they're the best behaving wheels I have for tubeless considering ease of mounting, inflation with just a track pump, and staying locked when deflated.

Regarding ETRTO recommendations, I have no qualms running 28s or 30s on these wheels because they are hooked, and the risk of blow off is infinitesimally small compared to hookless rims and tyres of any size. I'll note that Josh Poertner runs 32 mm tyres on his 29 mm internal width 3T Discus 45|40 wheels.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Chamomile on February 10, 2025, 04:24:31 PM
Concerned people might also consider road tire inserts nowadays. I believe we have passed the dark middle ages, and in a modern and progressive society, it's not illegal anymore. Fashion police will not arrest you.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: jinaaa on February 12, 2025, 01:56:29 AM
Got mine from Peter also , 45mm with impressive 1237grams.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: boulala on February 12, 2025, 04:32:10 AM
Got mine from Peter also , 45mm with impressive 1237grams.

Are those Steel Spokes? I'm looking for a similar setup of the DCU-55s but with steel spokes and i'm interested in real world weights compared to the carbon spoke versions.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: gabbia on February 13, 2025, 08:59:08 AM
Got mine from Peter also , 45mm with impressive 1237grams.
are theese the 26mm internal width with steel spoke?
i'm interested in the same configuration, what is the final price? do you know the difference between yours configuration and carbon spokes?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: jinaaa on February 13, 2025, 10:06:56 AM
Are those Steel Spokes? I'm looking for a similar setup of the DCU-55s but with steel spokes and i'm interested in real world weights compared to the carbon spoke versions.

Pillar wing 20 spokes
Pillar aluminum nipples
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: jinaaa on February 13, 2025, 10:09:26 AM
are theese the 26mm internal width with steel spoke?
i'm interested in the same configuration, what is the final price? do you know the difference between yours configuration and carbon spokes?

i believe the innerwidth is 21.4mm
outer width 28mm
T1100 rims 24/24H UD matt
Carbon Speed in-house hubs 36T rachets center lock straight pull for 100*12/142*12
Pillar wing 20 spokes
Pillar aluminum nipples

Pricewise , you can contact Peter , he is also here on the Forum and then he gives you the quote
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bobinski on February 14, 2025, 06:39:08 AM
I am really interested in the D50CU-33s. I run a Vielo V+1 as a mixed road/gravel bike and it looks like these wheels would fit perfectly.

I was going to go with new farsports Evo's but has some concerns about being able to true the carbon spokes or replace broken spokes. It seems no one here shares similar concerns about these wheels?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on February 14, 2025, 10:09:53 AM
D50CU33 w/ T800 and 24/24 steel spokes is 1400g at $600 shipped to us


D50CU33 w/ T1100 and 20/20 carbon spokes is sub 1200g at $950 shipped


Spending 50% more on less durable wheels to save ~200grams is probably not worth it for any of us who dont race
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on February 15, 2025, 03:16:28 AM
D50CU33 w/ T800 and 24/24 steel spokes is 1400g at $600 shipped to us


D50CU33 w/ T1100 and 20/20 carbon spokes is sub 1200g at $950 shipped


Spending 50% more on less durable wheels to save ~200grams is probably not worth it for any of us who dont race

 It's not about being 'worth it' but about wanting it. Lighter wheels spin up faster and generally feel quicker - I swapped a set of alloy Vento wheels with a 35mm set of Bora's on my Master and it transformed the ride and looks even better (same tires). I tried the same bike with a set of HED Stinger tubulars and it was better again. If someone thinking light (whatever) is going to make them move up a CAT level than they are kidding themselves. Heck, if I wanted to save 200g I would just skip breakfast.

 Oddly enough I just ordered these  https://www.xmcarbonspeed.com/Productinfo.asp?f=1657. A 1400g set of gravel wheels for a road bike. I don't mind the weight extra weight at all ;)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Chriasp on February 15, 2025, 06:06:35 AM
So I have gotten two offers from Peter:

1275g - 58mm rare and 50front
D50CU-28 T1100 rims 24/24H UD paintless, in-house hubs 36T rachets enduro steel bearings center lock straight pull for 100*12/142*12 with Shimano HG driver, Pillar 1420 spokes, Pillar aluminum nipples

1221g and 58rare and 50front:
D50CU-28 T1100 rims 21/21H UD paintless, In-house black or titanium color hubs 21/21H side entry hubs for carbon spokes 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver, carbon spokes with nipples

Any changes I should consider and is it worth going Carbon spokes vs Pillar 1420 spokes?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: wintermute on February 16, 2025, 05:38:47 AM
So I have gotten two offers from Peter:

1275g - 58mm rare and 50front
D50CU-28 T1100 rims 24/24H UD paintless, in-house hubs 36T rachets enduro steel bearings center lock straight pull for 100*12/142*12 with Shimano HG driver, Pillar 1420 spokes, Pillar aluminum nipples

1221g and 58rare and 50front:
D50CU-28 T1100 rims 21/21H UD paintless, In-house black or titanium color hubs 21/21H side entry hubs for carbon spokes 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 with Shimano HG driver, carbon spokes with nipples

Any changes I should consider and is it worth going Carbon spokes vs Pillar 1420 spokes?

I can't work out how the maths works out there.

Carbon spokes are c.2.6g and pillar aero are c.4.5g.

With 20h vs 24h there should be at least 90-100g difference?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Chriasp on February 16, 2025, 07:39:20 AM
I can't work out how the maths works out there.

Carbon spokes are c.2.6g and pillar aero are c.4.5g.

With 20h vs 24h there should be at least 90-100g difference?

I don’t know tbh. But I think I have found out it’s not even worth going carbon spokes. Easier to maintain the alu spokes I guess
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on February 16, 2025, 07:57:39 AM
Because the 21 carbon spoke hubs are heavy as shit
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on February 16, 2025, 10:05:55 AM
Apparently light enough to have a sub 1200g wheelset
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on February 16, 2025, 10:12:08 AM
Because the 21 carbon spoke hubs are heavy as shit
Really? Haha, 325g/pair on our 21/21H hubs, but still much lighter than DT Swiss hubs for carbon spokes, we don't use original DT Swiss hubs for carbon spokes, actually DT Swiss decided to make those hubs to supply to STREN who makes VONOA carbon spokes for many big brands, but firstly DT Swiss was too uncompromising on the price, secondly some brands don't want to use DT Swiss hubs for carbon spokes as well, so I believe you won't see current DT Swiss hubs for carbon spokes much longer.

Anyway, stable quality are most important, as I said when we released our 20/20H hubs for carbon spokes, we don't make them extremely light as some other companies do due to much higher spoke tension on carbon spokes. @Toxin, Have you seen anyone complaining about our 21/21H hubs except side entry so far? Maybe you are picky on weight of any part of bikes, but please don't say bad words on anything you haven't tried personally.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Lotnik on February 17, 2025, 01:27:33 AM
Anyway hubs are in the center of rotation so they not much affect on rotation mass. 50 grams +/- on the hub doesn't effect anything beside the complete weight of the wheelset.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on February 17, 2025, 01:48:18 AM
Anyway hubs are in the center of rotation so they not much affect on rotation mass. 50 grams +/- on the hub doesn't effect anything beside the complete weight of the wheelset.

If the material used for hub body is not so good, it might cause tension deformation on the sopke holes hub side because of high tension on carbon spokes, and even the breadth deformation in center of the hub body, carbon spokes might not be reused when you get quality problem on the hubs, that is why we don't suggest too light hubs used for carbon spokes if they are cheap as ours. Unless you use very good material to make the hub bodies meanwhile make them extremely light and stable quality, but they would be much more expensive though.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Uberflo on February 18, 2025, 08:40:17 AM
My wheelset from Peter ist ready 2 ship: https://imgur.com/a/gE4y7BS
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on February 18, 2025, 08:51:53 AM
My wheelset from Peter ist ready 2 ship: https://imgur.com/a/gE4y7BS

Sheeeesh! 1315g for a set of 65mm deep is wild.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Vaclav on February 20, 2025, 02:34:10 PM
My wheelset from Peter ist ready 2 ship: https://imgur.com/a/gE4y7BS

I have the exact same setup. Also ready to send. Mine have 15g more :D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bobinski on February 24, 2025, 08:21:44 AM
Hi,
I am just about to order these-D50CU-33 T1100 wheels UD paintless 20/20H built with carbon spokes and in-house hubs 54T rachets TPI ceramic bearing.Sram XDR for use on a xplr groupset. I am asking for rim tape to be fitted. Anything else i should be thinking about? TIA! Bob
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: j4m1eb on February 25, 2025, 06:15:21 AM
My wheelset from Peter is ready 2 ship: https://imgur.com/a/gE4y7BS

Mine too, although I went for 50mm
https://imgur.com/a/xIzGMzh (https://imgur.com/a/xIzGMzh)
(https://i.imgur.com/N6LDSQx.jpeg)
(https://i.imgur.com/EihTxJu.jpeg)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: j4m1eb on February 25, 2025, 06:18:37 AM
Hi,
I am just about to order these-D50CU-33 T1100 wheels UD paintless 20/20H built with carbon spokes and in-house hubs 54T rachets TPI ceramic bearing.Sram XDR for use on a xplr groupset. I am asking for rim tape to be fitted. Anything else i should be thinking about? TIA! Bob

I got a couple of spare spokes too. I was told I had to fit the rim tape myself?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: KaiDeus on February 25, 2025, 11:35:41 AM
Applying rimtape isn't hard, take it as an opportunity to learn. Just take your time with it. There is enough tape on a roll to be able to mess up.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: j4m1eb on February 25, 2025, 11:53:41 AM
Applying rimtape isn't hard, take it as an opportunity to learn. Just take your time with it. There is enough tape on a roll to be able to mess up.

Yeah it's fine I've done it many times. I was just saying that I doubt they will fit at the factory
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bobinski on February 25, 2025, 12:08:21 PM
I got a couple of spare spokes too. I was told I had to fit the rim tape myself?

Good shout re the spokes. I assumed they would throw a few in but i will ask.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: maza on February 25, 2025, 01:25:25 PM
Does Cabon Speed have the tension specs for the spokes? Unlike steel all carbon spokes are unique to the model and layup and cannot be tensioned according to any table. What readings should we go for when tensioning with Park Tool TM-1?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bobinski on February 25, 2025, 04:08:11 PM
I ask Pete about integrated bars and he has offered a 38/90 at a great price. I can’t find any user reviews- anyone here used them?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bobinski on February 26, 2025, 01:42:23 AM
Hello everyone,
First of all many thanks for all your efforts on the forum, it's great and helps me a lot - keep up the good work.

Based on your experiences and reports I have ordered a wheelset (and handlebar) from Peter. And I can and will pass on your opinion - it was a great experience and the products are really very, very high quality products. Peter helped me a lot, even when my questions were annoying, he always answered immediately and helped me - thank you!

For the wheels I ordered the new D50CU-33 T1100 rims with carbon spokes and Peter's in-house hubs. Weight 1,225 gr. The plan is to use 30mm tyres. When I have fitted them I can give an update on the actual width of the tyres if you are interested.

I am also happy with the integrated handlebars, I just have to look for suitable spacers.

(http://)

Hi
How did you get on with the handlebars? What was the spacer issue? Been offered 38/90 at a good price by Peter with my wheel order and not sure whether to bite or look elsewhere. Thanks. Bob
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: IL_EH_75 on February 26, 2025, 02:59:40 AM
Hi,

Which carbon fully integrated handlebar did you order from Peter?
In the website they have just one model, I don't know if they can supply different one.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on February 26, 2025, 03:04:39 AM
A set if these wheels i defo on my Radar but definatley not side entry hubs, 100% not after seeing Chris Froomes crash at the UAE touch and his wheel in bits with the hub still attached to the bike!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on February 26, 2025, 03:12:19 AM
Mine too, although I went for 50mm
https://imgur.com/a/xIzGMzh (https://imgur.com/a/xIzGMzh)
(https://i.imgur.com/N6LDSQx.jpeg)
(https://i.imgur.com/EihTxJu.jpeg)

Man these weights are crazy, what the stiffness of these wheels like though? I'm 80kg so obviously dont want noodles!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: David Belgium on February 26, 2025, 05:08:58 AM
Hi all,

Just wanted to drop in and give feedback about my recent experience with xmcarbonspeed & Peter.

I ordered this wheel set:

https://www.xmcarbonspeed.cc/products/carbon-speed-700c-clincher-tubeless-ready-26-mm-internal-width-disc-brake-road-gravel-bike-carbon-wheelsets

I chose the following:

--UD finish with paintless (imho, absolutely gorgeous compared to other finishes)
--50mm deep front and rear
--no rim holes (made setting up tubeless so easy)
--Pillar 1420 spokes
--brass nipples
--instead of 20F/24R, I went with 24f and 28R (I am 80-85kg)

I ordered the last few days of 2024 (~Dec 27), exchanged a few emails with Peter (who was responsive and great to deal with).

Since the Chinese New Year was in mid-to-end January 2025, I was thinking it'd be nice if I received the wheels near end of February.   

Around mid-Jan Peter emailed the build was finished, and that he'd notify me when he received a tracking number.  I thought for sure, weel, ok, the wheels will arrive end of February.  This is Europe, after all.  Stuff arrives slow.    Well, forget that.   

The wheels showed up at my doorstep on 1 Feb.

Packed great, box in good shape.  I took the wheels out, spun them by hand and began to smile.  Checked with tension meter, spokes were all within 5-8% tolerance of what they should have been.  Took off the Shimano HG freewheel, and light grease was perfect around the inner hub.   Wheels were true, and maybe the roundness could have been a touch better, but then I realized (from the wheels I have built myself over the decades) that these were just as good if not better than what I can do.   Which is to say, the overall build is quite good.

I have been riding this wheelset for near one month now, 3-4 times a week (weather here is iffy this time of year, so I use my other winter bikes when it's really bad out).   

With this new wheelset, there's been nothing to report.   No surprises, nothing unexpected.  Just the way wheels should be. 

Well, that's a lie, there has been one thing unexpected.   


For near 35 years I have been 'ROAD" riding, training, etc on alu wheels no deeper than 25mm and rim interiors from 13mm to 18mm (back in the 2000s I had went with 28mm external tires, but never changed rims).   

These xmcarbonspeed 50mm, 26mm internal deep wheels?  How to say this without sounding like a Koolaid drinking fool? They've been nothing short of "wow" eye-opening.  Running tubeless Conti GP5000 TR 700x30mm on these 33-34.16 ext width rims, where the Conti inflates to 32-32.4mm (at 40 psi front, 50 psi rear), has been a joy. 

The wheels snap to attention when I want to go (suddenly I am up & running).   After 17-18mph, the speed these rims are more easily able to hold, plus the cornering confidence that comes on a 30mm tire on a 26mm internal rim?   Again, joy. 

I have come back home from my normal rides thinking "what?"  I know and/or I thought that I felt like crap during some of those rides, yet there I am staring at either another new course PR, or better, knowing I had been fighting 25-40kmph winds, yet I am near my old course PR on that route. 

Basically, my avg speed for rides has went up 1.5-2mph.  I can't imagine what I am going to feel like when I get one of those days (that admittedly come less & less as I get older), where I feel I can rip the cranks off the bike & I am just powering fully over my ride.   Will I pull off a 21-23mph ride like I used to be able to do when I was a young pup?     Being an old dog now (a few decades now), where I was average only 16-18mph on my 2-3 hr solo rides, I am now easily averaging 18-20mph.  At my age, for me, by myself,  to be near 20mph rides?  Averaging this?

If you've been riding decades, you'll know what a big deal this is.


Anyhow, back to XMcarbnspeed & Peter.  It was thanks to Chinertown and this message board (and reading Peter's replies here and in other threads) that gave me confidence to make the jump with xmcarbonspeed.

I now face the problem that my wife (who 'road' rides too), has seen me too often grinning ear to ear when I come home.  Guess what she wants?    Her bike can only take a 28mm exterior wide rim, so I am not sure if Peter/XMcarbonspeed can do a similar build as above but just with different rims (rim brake rims) that are 28mm max external width but maybe with a 21-23 inner width.

I'm thinking a 25mm tubeless, with gobs lower psi, on a 21-23 inner width carbon rim, along with it being 45-50mm deep, is going to bring similar smiles to her face.


Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bobinski on February 27, 2025, 12:58:45 AM
Last question! Any reason to not get 5mm spokes other than a marginal loss of stiffness?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: j4m1eb on February 27, 2025, 04:26:20 AM
Last question! Any reason to not get 5mm spokes other than a marginal loss of stiffness?

I was torn between the 5mm and the narrower ones, same cost same weight. The conclusion I came to is they look "cool" so ordered them.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Tom77 on February 27, 2025, 05:34:32 AM
I ordered the same set, let's see.
In theory carbon spokes are stiffer
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: planet_sammy on February 27, 2025, 06:39:07 AM
I don't know exactly if the question has been asked here before, I'm interested in the T1100 wheels, but not with carbon spokes but rather with the Pillar Wing 20 for maintenance purposes.

What is the exact difference between 21 and 24 spokes per wheel, are the hubs different or is the difference 36/54 ratchets?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Lotnik on February 27, 2025, 07:04:33 AM
I don't know exactly if the question has been asked here before, I'm interested in the T1100 wheels, but not with carbon spokes but rather with the Pillar Wing 20 for maintenance purposes.

What is the exact difference between 21 and 24 spokes per wheel, are the hubs different or is the difference 36/54 ratchets?
You will have better answer when you ask Peter directly.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on February 27, 2025, 08:25:39 AM
I don't know exactly if the question has been asked here before, I'm interested in the T1100 wheels, but not with carbon spokes but rather with the Pillar Wing 20 for maintenance purposes.

What is the exact difference between 21 and 24 spokes per wheel, are the hubs different or is the difference 36/54 ratchets?

21 and 24 spokes will have different rider weight limits, and more spokes will be more redundant in a event of a spoke break. 24F/R is most common for steel spokes. Could use 24F 28R if your a big boy, or 21F 24R if your smaller since more weight is on the rear tire.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on February 27, 2025, 09:56:39 AM
21 and 24 spokes will have different rider weight limits, and more spokes will be more redundant in a event of a spoke break. 24F/R is most common for steel spokes. Could use 24F 28R if your a big boy, or 21F 24R if your smaller since more weight is on the rear tire.


I have emailed Peter regarding the wheels and relevant information, including the rider weight limits for the new T1100 wheel with a 20/20H spoke count on carbon spokes. I currently have the Craft 50/60s, which are 16F/21R, and I hover around 75 kg—80 kg when I’m feeling lazy—and they feel plenty stiff.

I might get a couple of pairs as well—the reviews, weights, and quality look  fantastic, it seem like a no brainer!
I’d love to know who they OEM for!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Uberflo on February 28, 2025, 12:58:14 AM
Weight limit is 120 kg for 20/20
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on February 28, 2025, 05:56:26 AM
Weight limit is 120 kg for 20/20


Thanks
Emailed yesterday but no reply yet appreciate Peter is likely busy though!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Bobinski on February 28, 2025, 11:44:02 AM
You should whatsapp him. He is super efficent on whatsapp.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 01, 2025, 05:35:53 AM

Thanks
Emailed yesterday but no reply yet appreciate Peter is likely busy though!

Thanks, I should have replied your email yesterday.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Yolowaccord on March 03, 2025, 10:52:28 AM
Hi all,

Just wanted to give some more good feedback about Peter/XMCarbonSpeed.

I reached out on 2/13/25 looking for help on a set of 65mm deep wheels for my Venge. He made some great suggestions based on my needs and we put together the following:
I chose the following:

D65CU-28 21.4mm internal width 28mm outer width rims 24/24H UD marble gloss finish
Carbon Speed in-house hubs 24/24H 36T rachets enduro steel bearings center lock straight pull for 100*12/142*12 with Sram XDR Driver
Sapim CX-Ray spokes
Sapim self-securing aluminum nipples

He quoted 20 days lead time for the build but I was notified the wheels were ready to ship just 2 weeks later. Attaching some pictures but I am so impressed with the speed and how great these look. They are in transit now so I will update once rec’d and installed but I am very excited to get these on the bike.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on March 03, 2025, 01:05:59 PM
I ordered a pair of 65mm deep D65CU-33 w/ 5.0mm spokes, plain gloss finish, no decals. 26mm int/33m ext

Except I chose the T800 version over the lighter T1100 this time. Ultra-light wheels at this depth for myself is asking for trouble.

Weight should be around 1460g which is still lighter than comparable Magene, Winspace, Elite Wheels. Yet wider.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: rasch on March 03, 2025, 03:37:21 PM
I ordered a pair of 65mm deep D65CU-33 w/ 5.0mm spokes, plain gloss finish, no decals. 26mm int/33m ext

Except I chose the T800 version over the lighter T1100 this time. Ultra-light wheels at this depth for myself is asking for trouble.

Weight should be around 1460g which is still lighter than comparable Magene, Winspace, Elite Wheels. Yet wider.

What do u do with so many wheels and bikes? XD
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on March 03, 2025, 03:37:42 PM
Ordered a set of wavy gravel wheels on the 13th and they have been shipped on the 1st. 24mm internal should plump up the 32mm gp5000 AS to near 35mm. Hope they fit the frame !
Screen grab from their website. Fairly light for t800 carbon and 24 spoke wheels IMO

https://www.xmcarbonspeed.com/Productinfo.asp?f=1657

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on March 03, 2025, 04:31:50 PM
What do u do with so many wheels and bikes? XD

Haha! I have a weird emotional attachment to my wheels than I do frames. Bike frames come and go. But great a set of wheels can transform almost any bike. I only keep the good stuff in rotation.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PJW on March 03, 2025, 08:31:50 PM
I received my wheels today! The ordering experience was excellent, and I’m excited to get them on the road.

D50CU-33
T800
24 Spokes
36T Ratchet Hubs w/ Steel Bearings
Sapim CX-Ray Spokes & Aluminum Nipples
XDR Driver
Total Weight: 1334g
Planning to install Continental 32mm GP5000's w/TPU Tubes

During inspection, I noticed some small burrs around several spoke holes (images attached). Since I plan to run tubes, I want to make sure rim tape will provide enough protection to avoid punctures. I’ve reached out to Peter to see what he recommends.

For those who have received their wheels—has anyone else noticed this? Also, are there any other areas I should double-check before building them up?

Thanks!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 04, 2025, 05:42:47 AM
I received my wheels today! The ordering experience was excellent, and I’m excited to get them on the road.

D50CU-33
T800
24 Spokes
36T Ratchet Hubs w/ Steel Bearings
Sapim CX-Ray Spokes & Aluminum Nipples
XDR Driver
Total Weight: 1334g
Planning to install Continental 32mm GP5000's w/TPU Tubes

During inspection, I noticed some small burrs around several spoke holes (images attached). Since I plan to run tubes, I want to make sure rim tape will provide enough protection to avoid punctures. I’ve reached out to Peter to see what he recommends.

For those who have received their wheels—has anyone else noticed this? Also, are there any other areas I should double-check before building them up?

Thanks!
That wheel was scratched a little bit during assembling and testion adjusting, that area was repainted, they insert those spoke holes with a stick to hold the wheel during painting, there should be some undried paint on the stick then left around the spoke holes, our workers did not check them again due to urgent shipping. I sent you an video showing how to deal with that. So sorry about this inconvenience.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PJW on March 04, 2025, 09:18:47 PM
That wheel was scratched a little bit during assembling and testion adjusting, that area was repainted, they insert those spoke holes with a stick to hold the wheel during painting, there should be some undried paint on the stick then left around the spoke holes, our workers did not check them again due to urgent shipping. I sent you an video showing how to deal with that. So sorry about this inconvenience.

I was able grind down the paint with a file and sandpaper - should be good to go now! Thanks for the help.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: boulala on March 05, 2025, 02:15:20 AM
Ordered a set of wavy gravel wheels on the 13th and they have been shipped on the 1st. 24mm internal should plump up the 32mm gp5000 AS to near 35mm. Hope they fit the frame !
Screen grab from their website. Fairly light for t800 carbon and 24 spoke wheels IMO

https://www.xmcarbonspeed.com/Productinfo.asp?f=1657

Looks nice. Whats the price point on these? And did you have time to already ride them?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on March 05, 2025, 02:26:20 AM
Looks nice. Whats the price point on these? And did you have time to already ride them?

 They were ~$500 and should be here tomorrow but we have 2 feet of snow on the ground here. I won't get to ride them for a month probably. Was -21C yesterday LOL
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Serge_K on March 05, 2025, 11:04:47 AM
I ordered a pair of 65mm deep D65CU-33 w/ 5.0mm spokes, plain gloss finish, no decals. 26mm int/33m ext

Except I chose the T800 version over the lighter T1100 this time. Ultra-light wheels at this depth for myself is asking for trouble.

Weight should be around 1460g which is still lighter than comparable Magene, Winspace, Elite Wheels. Yet wider.

If you want to experience loneliness, take 80mm wheels in the mountains on a windy day.
I'm not doing that again :D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 05, 2025, 03:50:39 PM
Anyone looking at shallower depths 35/40? Interested to see the weight with t
Carbon spokes and 20H/20H on carbon spokes
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 05, 2025, 06:42:50 PM
26mm internal 35mm depth super light climb wheels, 1090g/pair

D35CU-33 T1100 rims 20/20H UD paintless
Carbon Speed in-house hubs titanium color 20/20H 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 HG driver, 3.8mm carbon spokes
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TommyGun on March 06, 2025, 12:00:59 AM
Are carbon spokes models available also with other hubs (that are also designes for carbon spokes specificly)?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 06, 2025, 07:56:35 AM
Are carbon spokes models available also with other hubs (that are also designes for carbon spokes specificly)?

There are some companies selling carbon spokes with regular nipple end, but we don't, since those spokes without stable quality.

But we can build T1100 version rims with regular stainless spokes.
 Attached pictures are D50CU-33 T1100 rims 24/24H built with Sapim CX-Ray spokes and in-house hubs 36T rachets enduro steel bearings with Shimano HG driver
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 06, 2025, 08:00:17 AM
Anyone looking at shallower depths 35/40? Interested to see the weight with t
Carbon spokes and 20H/20H on carbon spokes
The weight would be around 1100-1110g/pair
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: TommyGun on March 06, 2025, 12:11:54 PM
My interest is only with carbon spokes (50mm, 33ext., 3,8mm carbon spokes). And I know that is way better to have the hub, that is specially made for carbon spokes.
Can you share any technical info regarding your carbon spoke hubs? Like which type and sizes bearings are used, weight,...
Do you maybe also have this hub with 24 spokes (rear only) or is it only 20 spoke option?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: DrRoB on March 06, 2025, 02:29:30 PM
There are some companies selling carbon spokes with regular nipple end, but we don't, since those spokes without stable quality.

But we can build T1100 version rims with regular stainless spokes.
 Attached pictures are D50CU-33 T1100 rims 24/24H built with Sapim CX-Ray spokes and in-house hubs 36T rachets enduro steel bearings with Shimano HG driver


I would be very interested in the wheelset mentioned above. How much would thiswheelset exactly cost including shipping to Germany? Kind regards
Robert
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Daviddavieboy on March 07, 2025, 03:05:15 AM
Ordered a set of wavy gravel wheels on the 13th and they have been shipped on the 1st. 24mm internal should plump up the 32mm gp5000 AS to near 35mm. Hope they fit the frame !

https://www.xmcarbonspeed.com/Productinfo.asp?f=1657

Landed here in Atlantic Canada yesterday (March 6th) safe and sound. Wheels were packaged well in a wheel specific box and look perfect.
FWIW I have bought wheels off ALI before and they just came in a large box stuffed with foam and these had cardboard separators inside the box and were in foam wheel bags and nothing else included although I did purchase a XDR freehub along with the included Shimano one.

For reference in my frame still has lots of clearance as I plan to use 32 mm tires.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 15, 2025, 07:38:27 AM
24mm internal width 50mm and 60mm depths rims would be available early April.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: notnow on March 16, 2025, 08:47:48 PM
24mm internal width 50mm and 60mm depths rims would be available early April.

weight on those?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 16, 2025, 10:16:28 PM
weight on those?
T1100 version UD paintless finish
50-31 : 375+/-10g
60-31: 420+/-10g
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 17, 2025, 07:49:16 AM
T1100 version UD paintless finish
50-31 : 375+/-10g
60-31: 420+/-10g

Look Great Peter! Look superlight!
XM Doing quality work are you working on anything shallower?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: planet_sammy on March 18, 2025, 06:50:23 AM
Does anyone also have the tubeless valves from XMC and tried to fill the milk directly through the valve?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 18, 2025, 08:00:37 PM
I ordered a pair of 65mm deep D65CU-33 w/ 5.0mm spokes, plain gloss finish, no decals. 26mm int/33m ext

Except I chose the T800 version over the lighter T1100 this time. Ultra-light wheels at this depth for myself is asking for trouble.

Weight should be around 1460g which is still lighter than comparable Magene, Winspace, Elite Wheels. Yet wider.


Any idea what these would be ultralight? Like 1300g
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: toxin on March 18, 2025, 08:01:32 PM
ultralight 65mm rims are 475g, do the math
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 18, 2025, 08:03:08 PM
My wheelset from Peter ist ready 2 ship: https://imgur.com/a/gE4y7BS

What size width of spokes are they?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 18, 2025, 08:20:09 PM
24mm internal width 50mm and 60mm depths rims would be available early April.

Is 60mm the biggest rim depths for this rim type?
And are these rims lighter at all than IW26mm rims.
What is the weight of a 60-60 2020H hubs with 5mm carbon spokes? Do you do vonoa 4.6mm spokes thinking deep but lightweight wheels set
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Uberflo on March 18, 2025, 09:46:26 PM
What size width of spokes are they?

5 mm
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 18, 2025, 10:55:10 PM
Is 60mm the biggest rim depths for this rim type?
And are these rims lighter at all than IW26mm rims.
What is the weight of a 60-60 2020H hubs with 5mm carbon spokes? Do you do vonoa 4.6mm spokes thinking deep but lightweight wheels set
Yes, currently we just have 24IW rims at 50mm and 60mm depths available. 60-24 front and rear 20/20H wheelset would weigh around 1250-1260g/pair. Sorry we don't stock all lengths VONOA spokes for all depths rims we have, mainly 3.2mm ones for 21/21H 50mm wheels. Regarding 20/20H wheels, all lengths on 3.8mm or 5.0mm spokes are available.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: glepore on March 19, 2025, 08:09:50 AM

Any idea what these would be ultralight? Like 1300g
Probably slightly under. My 50/65 set in t800 is 1332, and they're the 26 internal.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 19, 2025, 09:15:15 AM
Probably slightly under. My 50/65 set in t800 is 1332, and they're the 26 internal.

That's a great weigh!
I Looked at there site, should not have been so lazy  ;D  so 75 +/-10g so if your lucky and want light weight 95g.
Currently I have CRWs and the were 1280g for 50/60, so 53g at half the price is fantastic VFM!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 19, 2025, 09:34:14 AM
That's a great weigh!
I Looked at there site, should not have been so lazy  ;D  so 75 +/-10g so if your lucky and want light weight 95g.
Currently I have CRWs and the were 1280g for 50/60, so 53g at half the price is fantastic VFM!
65-33 both front and rear T1100 20/20H UD paintless combo weigh around 1315-1325g/pair
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 19, 2025, 10:01:52 AM
65-33 both front and rear T1100 20/20H UD paintless combo weigh around 1315-1325g/pair

Thanks for the picture Peter appreciated! would the 24mm IW rims be lighter? dont trouble yourself sending a picture, your probably busy enough! ;D
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 19, 2025, 10:17:37 AM
Thanks for the picture Peter appreciated! would the 24mm IW rims be lighter? dont trouble yourself sending a picture, your probably busy enough! ;D
Actually I did mention in my above post. Both front and rear 60-31 24IW UD paintless 20/20H wheels weigh around 1250-1260g/pair. If possible, check our previous posts in this topic, you would find out a lot :)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 20, 2025, 10:39:24 AM
Hi guys, we will leave for Taipei cycle show 3 days later, some orders might not be shipped out in time until April 1st.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on March 21, 2025, 09:39:25 AM
INCOMING...

65mm 34 external/26 internal - 5.0mm carbon spokes and ceramic bearings.

I opted for the T800 instead of the lighter T1100. Still lighter though than my Magene Ultra DB607, Winspace Hypers, and Elite Drive/Helix as similar depths. Thanks Peter!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: SAM2013 on March 21, 2025, 10:14:40 AM
26mm internal 35mm depth super light climb wheels, 1090g/pair

D35CU-33 T1100 rims 20/20H UD paintless
Carbon Speed in-house hubs titanium color 20/20H 54T rachets TPI ceramic bearings center lock straight pull for 100*12/142*12 HG driver, 3.8mm carbon spokes

Not sure if I should PM, but copy/pasting is a pain on my phone so hope
You won’t mind me asking here- what would be price shipped to Ireland for these Peter?

Many thanks
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 21, 2025, 10:36:07 AM
INCOMING...

65mm 34 external/26 internal - 5.0mm carbon spokes and ceramic bearings.

I opted for the T800 instead of the lighter T1100. Still lighter though than my Magene Ultra DB607, Winspace Hypers, and Elite Drive/Helix as similar depths. Thanks Peter!


Sick Wheels Patrick!  I have no whittled it down to a set of 65mm wheels but looking to see if I can go sub 1300g. Will wait patiently for your video!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Nkearb on March 21, 2025, 01:38:37 PM
INCOMING...

65mm 34 external/26 internal - 5.0mm carbon spokes and ceramic bearings.

I opted for the T800 instead of the lighter T1100. Still lighter though than my Magene Ultra DB607, Winspace Hypers, and Elite Drive/Helix as similar depths. Thanks Peter!

My second wheelset from peter just shipped, D50CU36 rims, t800, 24/24, pillar 1420 and they are 1350grams My first wheelset is similar to my new except D65CU33 and weight is 1500grams.


Based off my wheels and Pattys wheels here, it seems the T800 rim weights have decreased from peters wheelset from last year. T800 wheelsets are ~70grams less than what I estimated from previous wheels on this thread. I am definitely not complaining  8)
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 22, 2025, 08:07:22 AM
Hey Peter can you supply wheels with  Extralite Hubs?
I’m also looking at a 60-65mm deep wheels set T1000 targeting -1200grams
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 22, 2025, 08:50:38 AM
Not sure if I should PM, but copy/pasting is a pain on my phone so hope
You won’t mind me asking here- what would be price shipped to Ireland for these Peter?

Many thanks
850 USD/pair with Shimano HG driver, excluding shipping
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: PeterXu on March 22, 2025, 08:52:08 AM
Hey Peter can you supply wheels with  Extralite Hubs?
I’m also looking at a 60-65mm deep wheels set T1000 targeting -1200grams
Yes we do. But only Extralite hubs 24/24H for regular stainless spokes, No carbon spokes option.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 22, 2025, 09:13:40 AM
Yes we do. But only Extralite hubs 24/24H for regular stainless spokes, No carbon spokes option.


Ahhh well I might be jumping gun they have just released SPC 3 hubs 24/24h centre lock 200g a set.
Will accept straight pull steel and carbon max tension 1176nm.
So much choice so hard to make up mind! :-(
Almost like something new released every week
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: SAM2013 on March 22, 2025, 11:06:39 AM
850 USD/pair with Shimano HG driver, excluding shipping
Thanks Peter, I'll drop you an email on Monday.

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 22, 2025, 07:17:47 PM
24mm internal width 50mm and 60mm depths rims would be available early April.

Will You be making these rims in any other sizes?
65mm?
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: lidation on March 23, 2025, 05:08:14 AM
I just received a pair of 28mm carbon wheels from Carbon Speed last week. I have just finished installing the tire and rotors on. Overall I am quite happy with the purchase. 

1. lead time: from the time I placed the order to the wheelset arrived at my doorstep took 12 days. I live in California, US. This is super fast considering it took them more than a week to custom build the wheels.  I ordered by contacting Peter Xu through WhatsApp. He was very prompt and accommodating.
2. package: the wheels are well packed. no complaints.
2. Weight: the claimed weight was 1330g and the actual measured weight was 1268g --- 62 gram lighter than claimed!
3. The quality: the wheels seem to be well made. their inhouse hub sounds great. Actually I think it sounds louder and better than the DT350 hub.

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: planet_sammy on March 24, 2025, 03:34:28 AM
I ordered:
- D50CU-28 (21mm inner and 28mm outer width) T1100 rims 24/24H UD matt 50mm
- Pillar wing 20 spokes
- Pillar aluminum nipples

shipping today, thanks to Peter !!!

Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: patliean1 on March 26, 2025, 12:56:58 PM
You would think this would happen more frequently with all the wheelsets I've reviewed over the years. But this is actually the very first time I received a super damaged packaged like this. Thankfully no damages or scuffs to the actual wheels themselves  8)

Using these 65mm for an upcoming titanium project. Thanks Peter!
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: sgommy on March 26, 2025, 03:40:37 PM
my 50mm T1000 wheels just arrived. Super pleased - communication was great, and they arrived within a couple weeks.
haven't put many miles on yet - winter keeps blowing in, but QC looks good so far.
Title: Re: Xiamen Carbon Speed 10 years anniversary special promotion
Post by: Sander2177 on March 27, 2025, 04:52:30 AM
You would think this would happen more frequently with all the wheelsets I've reviewed over the years. But this is actually the very first time I received a super damaged packaged like this. Thankfully no damages or scuffs to the actual wheels themselves  8)

Using these 65mm for an upcoming titanium project. Thanks Peter!


Ahhh teasing the new Ti Frame!