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Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: PeterXu on January 17, 2025, 06:25:24 AM

Title: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on January 17, 2025, 06:25:24 AM
Sorry, last topic I made seems doesn't work fine. So this is new one.

Attachments are our newest carbon crankset which would be released after Chinese New Year holiday. 165mm size is under testing, 325+/-5g/ set including 29mm DUB 7075 aluminum spindle, 24mm titanium spindle would be availlable as well.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: HanzJWermhat on January 17, 2025, 06:32:13 AM
What is the interface to the spider?

If it’s 3 bolt, NICE! I can use my Magene PM. I passed on some frames because of BB86 and lack of carbon cranks with 24mm spindles that had 3 bolt interfaces. Titanium spindle makes that build much more do-able. Still might be interested in the DUB now that I have a T47 frame coming
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on January 17, 2025, 06:36:16 AM
What is the interface to the spider?

If it’s 3 bolt, NICE! I can use my Magene PM. I passed on some frames because of BB86 and lack of carbon cranks with 24mm spindles that had 3 bolt interfaces. Titanium spindle makes that build much more do-able. Still might be interested in the DUB now that I have a T47 frame coming

Easton style. There might be patent problem on 3 bolts design that is why we don't do bolts version.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: neobiker on January 17, 2025, 06:59:46 AM
Do you have any price for the 24mm titanium version?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on January 17, 2025, 10:00:26 AM
Do you have any price for the 24mm titanium version?
No yet. 24mm titanium version won't be available until March or early April.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on January 17, 2025, 10:51:43 AM
What's the alu price? Q-factor? any stiffness test comparisons against the competition?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sakizashi on January 17, 2025, 11:35:40 AM
Interesting!

Is the spindle swappable for different lengths? Is it compatible with the Easton spindles?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on January 17, 2025, 12:41:37 PM
the spindle-crank interface looks identical to cybrei, the arms are different, so no and yes.

Like the cranks arms actually, there were complaints about clearance issues with the straight arms like elilee and cybrei
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Icyseanfitz on January 17, 2025, 01:13:33 PM
Looks great, would be interested in a 24mm titanium version.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sakizashi on January 17, 2025, 02:24:17 PM
the spindle-crank interface looks identical to cybrei, the arms are different, so no and yes.

Like the cranks arms actually, there were complaints about clearance issues with the straight arms like elilee and cybrei

Ah yes, I realized looking at it that the preload collar threads are on the spindle vs. on the crank. I sure hope they are swappable though, would be nice to be able to get different lengths for gravel setups etc.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: neobiker on January 18, 2025, 04:44:41 AM
I got some pictures from the preproduction models. Weight should remain the same for production.

https://photos.app.goo.gl/N8YueX3CwPc6cgfh7
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: TidyDinosaur on January 18, 2025, 05:38:54 AM
I got some pictures from the preproduction models. Weight should remain the same for production.

https://photos.app.goo.gl/N8YueX3CwPc6cgfh7

Looks good, but too bad they won't do 3-bolt interface though... There are already a lot cranks that look the same as these, but none 24mm and 3 bolt
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: RDY on January 18, 2025, 01:23:25 PM
@PeterXu do the factory and designers making this have experience making big brand or Chinese brand thermoplastic cranks? 

SRAM had early problems with delaminating inserts and a few cracks.  Easton had a lot of issues early on, and still some now.  Various cheap Chinese ones have had the same.  Quality Chinese ones from Incolor and Elilee both had extensive issues initially.

I.E. If the factory and designers have experience, we might expect the launch product to work fine.  If not ... I think it may be a mess.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on January 18, 2025, 01:55:21 PM
considering the crank-to-arm interfaces are a 1-to-1 Cybrei copy (probably from the same machine shop), I expect there's probably some other Cybrei sauce in there too
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on January 22, 2025, 04:27:47 AM
Sorry, last topic I made seems doesn't work fine. So this is new one.

Attachments are our newest carbon crankset which would be released after Chinese New Year holiday. 165mm size is under testing, 325+/-5g/ set including 29mm DUB 7075 aluminum spindle, 24mm titanium spindle would be availlable as well.


Whats the suggested retail price for this Peter?

Im finding multiple brands are basically doing the same style/design of crank
Lexon
CarbonBike Kit
Sprill/pass quest
Cybrei
Elile
Riro
Leese
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Da11as on January 22, 2025, 05:22:11 AM
Looks good, but too bad they won't do 3-bolt interface though... There are already a lot cranks that look the same as these, but none 24mm and 3 bolt
Same here, I want 24 axle so badly, but I don't want to get rid of my good old p2Max 3-bolt spider PM...
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on February 17, 2025, 11:25:42 PM
The DUB 29mm aluminum spindle version could be pre-ordered now, the lead time would be 30-45 days.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: j4m1eb on February 18, 2025, 02:21:00 AM
Watching with interest. Need the 24mm version.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Blablablaomfg on February 19, 2025, 05:49:44 AM
The DUB 29mm aluminum spindle version could be pre-ordered now, the lead time would be 30-45 days.

Is there a price Peter?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on February 20, 2025, 03:41:17 AM
Is there a price Peter?
230 USD/ set for DUB 29mm aluminum version crankset only

We offer spider, different versions chainrings as well:  https://photos.app.goo.gl/XwGd4ANeadbm8yrX8
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Takiyaki on February 20, 2025, 06:29:28 AM
Im guessing no 8 bolt version either?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Yolowaccord on February 20, 2025, 08:18:31 AM
any plans to make other crank lengths? Looking for 155 or 160.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on February 20, 2025, 08:57:32 AM
any plans to make other crank lengths? Looking for 155 or 160.
Yes, next size would be 170mm, then 160mm or 155mm
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: patliean1 on February 20, 2025, 09:23:29 AM
I'm super excited for the 24 titanium version. Will be curious to see what spider power meters are compatible.

Currently all my Shimano built bikes run either 29mm DUB/Quarq spindles or Magene PES Base power meters. The Magene probably is most ideal since it's 24mm, but is a bit heavy if you're a weight weenie. And spending $850 on the Cybrei setup is a tall request.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on February 20, 2025, 10:00:07 AM
it's already confirmed to be easton mount standard...
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Petro on February 20, 2025, 09:33:14 PM
I'm waiting for 24mm titanium 172.5mm ;D
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: RDY on February 21, 2025, 06:50:37 AM
@PeterXu do the factory and designers making this have experience making big brand or Chinese brand thermoplastic cranks? 

SRAM had early problems with delaminating inserts and a few cracks.  Easton had a lot of issues early on, and still some now.  Various cheap Chinese ones have had the same.  Quality Chinese ones from Incolor and Elilee both had extensive issues initially.

I.E. If the factory and designers have experience, we might expect the launch product to work fine.  If not ... I think it may be a mess.

@Peter

Can you comment on this?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: j4m1eb on February 21, 2025, 06:57:51 AM
230 USD/ set for DUB 29mm aluminum version crankset only

We offer spider, different versions chainrings as well:  https://photos.app.goo.gl/XwGd4ANeadbm8yrX8

Nice, just patiently waiting for 24mm 165mm version then
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on February 21, 2025, 07:10:08 AM
Looks good nice plain and simple :-)
Ok now wait for the new Quick Pro ER:One some XM Wheels Ultegea and this crank and I'm ready to go!
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: A.V.G on February 21, 2025, 06:29:37 PM
So this will work with the Magene P505 power meter, or am I being daft?  If so, that'd be great.  As Pat said, the P505 is a porker at 800g+.  (170mm & 52/36)

I need to drop some weight from the Magene crank or go to pedal based PM.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: raisinberry777 on February 21, 2025, 07:10:11 PM
So this will work with the Magene P505 power meter, or am I being daft?  If so, that'd be great.  As Pat said, the P505 is a porker at 800g+.  (170mm & 52/36)

No, Magene uses its own proprietary interface for the P505 Base cranks, and does not make an Easton version for the P505 spider. Both XCadey and Sigeyi make power meters to suit the Easton crank interface.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on February 22, 2025, 06:59:51 AM
What makes you think it would be p505 compatible?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: A.V.G on February 22, 2025, 12:21:32 PM
What makes you think it would be p505 compatible?

I'm not familiar with the "easton mounting standard".  The Magene P505 PM spider is round and has four mounting bolts, not unlike those pictured in this thread (which are apparently compatible).  raisinberry777 set me straight.  I'm just not that into my p505.  I thought having a PM would be the final frontier, but the p505 added 100g+ to my bike, and the data isn't *that* useful.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: wintermute on February 24, 2025, 06:02:19 AM
This is still more expensive for me than the Lexon/Ryet branded one on Ali.

What advantages does this offer? No 24mm yet?

Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on February 24, 2025, 08:30:54 AM
with the lexon redesign to make it cheaper to produce, this is lighter
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Cnasta on February 28, 2025, 02:47:33 AM
Looking for a crank + PM + chainrings for a new build. Would love it to be reasonably light, 165, 167.5 or 170mm cranklenght.

Love ordering via Peter, since I have nothing but good experience with him.

However, I have a few questions:

A lot of ppl seem to wait for:
What is the difference between 24 en 29mm? Why would you rather have 24mm?
For the titanium I guess its stronger or lighter (or both) than alu?

Furthermore, what powermeter (spider) and chainrings would you go for? I love a closed ring and riding 52/36.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: raisinberry777 on February 28, 2025, 02:59:24 AM
The main reason to wait for 24mm is for people with a BB86 frame, since a 29mm DUB crank (made of aluminium) requires the use of smaller bearings. 24mm needs steel or titanium - aluminium has a risk of shearing at those smaller diameters. Weight is roughly the same or slightly in favour of the aluminium cranks normally. If you have any other type of frame you might as well use the 29mm version.

Chinese PM options are XCadey or Sigeyi, they use the Easton interface.

Best Chinese chainring options are Stone or Pass Quest. Lexon is another option.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Cnasta on February 28, 2025, 03:14:34 AM
The main reason to wait for 24mm is for people with a BB86 frame, since a 29mm DUB crank (made of aluminium) requires the use of smaller bearings. 24mm needs steel or titanium - aluminium has a risk of shearing at those smaller diameters. Weight is roughly the same or slightly in favour of the aluminium cranks normally. If you have any other type of frame you might as well use the 29mm version.

Chinese PM options are XCadey or Sigeyi, they use the Easton interface.

Best Chinese chainring options are Stone or Pass Quest. Lexon is another option.

Thanks!

Since I'm going for a BSA BB frame, I can just as wel go for the 29mm spindle :)
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PoulB88 on February 28, 2025, 04:12:38 AM
For me, the biggest reason to choose 24mm is that with a BSA or BB86 frame, the bearings are very small for DUB and 30mm axles. So You have better durability (of course there is anecdotal evidence suggesting otherwise...) if you stick with a 24mm Shimano standard axle.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on February 28, 2025, 04:44:57 AM
Bsa bearing are positioned outboard the bb shell. The only thing limiting the bearing size is the bb itself
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on February 28, 2025, 05:47:37 AM
Looking for a crank + PM + chainrings for a new build. Would love it to be reasonably light, 165, 167.5 or 170mm cranklenght.

Love ordering via Peter, since I have nothing but good experience with him.

However, I have a few questions:

A lot of ppl seem to wait for:
  • 24mm
  • Titanium
What is the difference between 24 en 29mm? Why would you rather have 24mm?
For the titanium I guess its stronger or lighter (or both) than alu?

Furthermore, what powermeter (spider) and chainrings would you go for? I love a closed ring and riding 52/36.

Probably repeating what everyone has said, but a 24mm spindle—especially in a BSA bottom bracket—means larger bearings, which naturally last longer.

I have a DUB Cybrei on my SL8, and since I have a press, swapping it is no big deal. Longevity isn't a major concern for me, but I do use steel bearings (SKF/NTN). I previously had a THM Clavicula with their ceramic bottom bracket, and it was terrible—bearings didn’t last, and as a heavier rider, it was noisy as hell when climbing out of the saddle. That was super annoying since I need everything to be completely silent. I ended up selling it and went back to my Dura-Ace crank before getting the Cybrei.

I’m currently running 54/38 MetAero Cybrei rings with an 11-34 cassette, paired with an X-Cadey power meter, which works fine. I’ll be testing this setup in Gran Canaria next week ahead of Mallorca 312 in April. We’ll see if my legs blow up—if they do, I might switch to 52/36 rings.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tom77 on March 04, 2025, 02:17:23 AM
In case someone wants to have good solution for BSA:

SRAM Red E1 arms (308g, DUB)
Sigeyi AXO (110g)
Shimano chainrings (147g)

Total 580g
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: lidation on March 12, 2025, 09:11:47 PM
Has anybody tried one yet?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sakizashi on March 12, 2025, 10:12:58 PM
Probably repeating what everyone has said, but a 24mm spindle—especially in a BSA bottom bracket—means larger bearings, which naturally last longer.

I have a DUB Cybrei on my SL8, and since I have a press, swapping it is no big deal. Longevity isn't a major concern for me, but I do use steel bearings (SKF/NTN). I previously had a THM Clavicula with their ceramic bottom bracket, and it was terrible—bearings didn’t last, and as a heavier rider, it was noisy as hell when climbing out of the saddle. That was super annoying since I need everything to be completely silent. I ended up selling it and went back to my Dura-Ace crank before getting the Cybrei.

I’m currently running 54/38 MetAero Cybrei rings with an 11-34 cassette, paired with an X-Cadey power meter, which works fine. I’ll be testing this setup in Gran Canaria next week ahead of Mallorca 312 in April. We’ll see if my legs blow up—if they do, I might switch to 52/36 rings.

The bearings typically used for 30mm/29mm/Dub (6806 or 6806-29) and 25mm/24mm (6805 or MR2537) have the same size balls. BB86 is the only standard where you should want a 24mm axle.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: raisinberry777 on March 12, 2025, 10:33:11 PM
There's a mix regarding DUB and BSA bottom brackets. Despite not being limited by size, SRAM still use smaller bearings on BSA bottom brackets. Some other manufacturers like Wheels Mfg use 6806 bearings.

See here:
https://weightweenies.starbike.com/forum/viewtopic.php?t=165166

However, it's also worth considering that loads of major bike brands use either BSA or BB86 frames with SRAM builds and there are seemingly no reports of widespread issues.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Taicho_Cyclist on March 13, 2025, 11:13:21 AM
I just received the LEESE LSE-C01 carbon crank from Aliexpress which took nearly a week to arrive in Asia. The format is in EASTON DUB as I have the TIME Alpe d'Huez in DUB, making the swap a straight forward affair should I replace the current crankset.

The crankarms are detachable from the DUB axle which made installing of spider or powermeter a breeze. Indeed I have a XCADEY Gen 2-S powermeter spider lying around since the previous LEXON Carbon crank could not install this spider properly. All I took was less than 5 minutes to assemble the powermeter together with the crankset and it was all set to be mounted on the bike. Of course, I do not have a torque wrench to go 40nm but a good yank of the allen key till there is no play is probably going to keep things together.

Total weight is 500 grams flat = crankarms + axle + XCADEY Spider; compare that to a Shimano Ultegra R8100 crankset which weighs 700 grams without chainring and we get a decent 200 grams shaved off.

I have done a short introduction video here - youtu.be/SdwSQCgpMFM  in youtube.

Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sakizashi on March 13, 2025, 11:15:43 AM
There's a mix regarding DUB and BSA bottom brackets. Despite not being limited by size, SRAM still use smaller bearings on BSA bottom brackets. Some other manufacturers like Wheels Mfg use 6806 bearings.

See here:
https://weightweenies.starbike.com/forum/viewtopic.php?t=165166

However, it's also worth considering that loads of major bike brands use either BSA or BB86 frames with SRAM builds and there are seemingly no reports of widespread issues.

SRAM uses that smaller bearing in the PF30 as well. I have not looked at a t47, but no reason to believe it would be an exception. I believe they use the same bearing across the range. It's a custom bearing you can't buy, so it's very much a one-off.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: raisinberry777 on March 13, 2025, 01:43:50 PM

Total weight is 500 grams flat = crankarms + axle + XCADEY Spider; compare that to a Shimano Ultegra R8100 crankset which weighs 700 grams without chainring and we get a decent 200 grams shaved off.

Bit less for the weight savings - Ultegra R8100 is 547g in 165mm without rings, see here:

https://handsonbike.blogspot.com/2023/09/12-speed-crankset-comparison-dura-ace.html?m=1

In any case, better off starting a new topic as this is for the XMCarbonSpeed cranks, not the Leese ones.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Yunglord on March 14, 2025, 12:16:56 AM
Yes I concur with the above poster my r8100 with 52/36 rings in 165mm is 709grams.

I'm looking forward to the 24mm version to see if it's worth getting over the dub axle.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: j4m1eb on March 14, 2025, 11:22:21 AM
I've just got a new grouspset and weighed every component
R8100 50/34 165mm - 705g

(https://i.imgur.com/LQBQSq6.jpeg)
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on March 14, 2025, 12:19:20 PM
^This has nothig to do with the topic of this thread come on
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: j4m1eb on March 14, 2025, 12:42:22 PM
^This has nothig to do with the topic of this thread come on

I was just confirming the weight of Ultegra cranksets as surely the point of a Carbon crank is it is lighter?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: aeroskiii on March 14, 2025, 04:46:52 PM
I was just confirming the weight of Ultegra cranksets as surely the point of a Carbon crank is it is lighter?
wow thanks for the information its exactly what we wanted. none of us knew that the aluminum crank with a steel spindle is heavier than the ultralight carbon crank and we couldn't look it up. Thanks for the info!
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Rebel_Yell on March 15, 2025, 04:35:05 PM
eneral question on this and other Carbon cranksets. I am around 100kg and wondering how carbon cranks hold up with heavier riders.  Any experience or ideas?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on March 16, 2025, 09:32:01 AM
I'd hardly consider shimano the gold standard of cranks
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on March 16, 2025, 01:11:54 PM
?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on March 17, 2025, 09:47:21 AM
eneral question on this and other Carbon cranksets. I am around 100kg and wondering how carbon cranks hold up with heavier riders.  Any experience or ideas?

Should be fine imo, although if you have cash done waste it on THM tough   ;D  had one at 90kgs and was a bag on sh1t any climbing out of saddle noisy as f1ck! and fiddley as f1uck as well to set up. For the 60/70kgs rider!
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Biscaye05 on March 18, 2025, 04:08:50 PM
@PeterXu do the factory and designers making this have experience making big brand or Chinese brand thermoplastic cranks? 

SRAM had early problems with delaminating inserts and a few cracks.  Easton had a lot of issues early on, and still some now.  Various cheap Chinese ones have had the same.  Quality Chinese ones from Incolor and Elilee both had extensive issues initially.

I.E. If the factory and designers have experience, we might expect the launch product to work fine.  If not ... I think it may be a mess.

I guess we're not getting an answer this @PeterXu?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on March 18, 2025, 10:49:53 PM
I guess we're not getting an answer this @PeterXu?
We don't sell any items without QC, we have been doing the in-house testing for couple of months and had some pros tested these cranksets too, otherwise how could we announce releasing them? Thanks for your concern and questions.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Jamoche on March 20, 2025, 06:39:54 AM
@PeterXu when do you expect the 170mm dub crank to be available? Thank you.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: aeroskiii on March 20, 2025, 02:42:47 PM
Dude, relax. Yes, it is helpful to know the weight of the gold standard crankset when considering buying a premium avant garde piece of kit.
I wouldn't worry. 100kg isn't THAT heavy, and i suspect you're not a track sprinter. Don't buy ultra lightweight components, like these cockpits that are pool noodles because they weigh nothing. Ditto, dont get feather weight aluminium cassettes. You'll probably wear out chairings fast if you get chinese ones, but they're cheap.
These carbon cranksets have been around for many, many years, i've had a sram red carbon crankset on my rim brake bike for a million years. As long as there's no manufacturing defect or dumb design (raceworks had a dumb design), you should be fine.
Just giving him a hard time  8)
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on April 09, 2025, 05:59:20 AM
Any update on the Chainrings Peter
Specifications?
Sizes available
And price?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Lotnik on April 24, 2025, 08:00:37 AM
I'm interested too in the chain rings. Are they with carbon body or just carbon sticker like Cybrei does?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Daviddavieboy on April 24, 2025, 01:36:54 PM
I'm interested too in the chain rings. Are they with carbon body or just carbon sticker like Cybrei does?

 LOL I didn't realize they were a sticker. I guess I could just slap on some 3k carbon wrap I  have kicking around.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on April 24, 2025, 03:50:54 PM
It's not. Its a carbon front plate , bonded to an aluminium backplate. The point is that the carbon plate gives you strength and aluminium gives durability and shifting performance
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Daviddavieboy on April 24, 2025, 06:17:26 PM
It's not. Its a carbon front plate , bonded to an aluminium backplate. The point is that the carbon plate gives you strength and aluminium gives durability and shifting performance

Sry, was referring to the Cybrei ones.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on April 24, 2025, 06:26:59 PM
So was I. And from the pictures I'm pretty confident in saying XMCS ones are the same type of design.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Da11as on April 25, 2025, 01:41:31 AM
Hi Peter! Do you have these cranks available for purchase? What is the price?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Daviddavieboy on April 25, 2025, 04:34:10 AM
So was I. And from the pictures I'm pretty confident in saying XMCS ones are the same type of design.

 Peter's are for sure. I was in contact with him a month ago after I bought a frame from him and some wheels. I asked him to message me when they are available. I want to use a 1x with the R01 I bought.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on May 01, 2025, 06:44:54 AM
Peter's are for sure. I was in contact with him a month ago after I bought a frame from him and some wheels. I asked him to message me when they are available. I want to use a 1x with the R01 I bought.

165mm both 29mm DUB aluminum spindle and 24mm titanium spindle options would be available in May, orders accepted for now. And the chainrings too.
Chainrings spec.
Double rings:50-34/52-36/53-39/54-40
Single ring: 46/48/50/52/54/56/58

Next sizes would be 170mm and 155mm cranksets. We are making carbon sprider as well.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on May 01, 2025, 06:54:01 AM
Could we get pics of the inner side? Curious what the shifting ramps look like
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on May 01, 2025, 07:07:01 AM
Prices and weight for cranks and chainrings all sizes please peter
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on May 01, 2025, 09:18:13 AM
Could we get pics of the inner side? Curious what the shifting ramps look like
Will have to do that after May Day 5 days holiday
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on May 05, 2025, 02:24:46 AM
Will have to do that after May Day 5 days holiday

Thanks. Mich appreciated
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on May 07, 2025, 10:57:39 AM
Hi Peter hope you had a good holiday

May I get prices and weights of the next chainrings please
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on May 14, 2025, 09:03:28 AM
Could we get pics of the inner side? Curious what the shifting ramps look like
Sorry, have been extremely busy recently, going to have 2nd baby in
few months. Here are the pictures
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on May 14, 2025, 09:17:41 AM
Sorry, have been extremely busy recently, going to have 2nd baby in
few months. Here are the pictures

Congratulations peter!
Fully appreciate your busy  :D
Will try to remain patient as you definitely have more important priorities!
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on May 14, 2025, 09:25:20 AM
Congratulations peter!
Fully appreciate your busy  :D
Will try to remain patient as you definitely have more important priorities!
Thanks. And these are more pictures on our 50-34T chainrings and carbon sprider
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on May 14, 2025, 11:27:57 AM
Congrats! I really like that the spider is actually shaped CF weave instead of what looks like forged CF from Cybrei (Cenit?). Though I'm a big fan of the 4+5 bolt compatibility on those.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on May 14, 2025, 12:49:25 PM
Gratulation!

Chainrings looks good. But they’re a bit heavy right? Or am I mistaken. Dur ace is around 13x, as is cybrei?
But that’s probably without the bolts
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on May 14, 2025, 08:08:55 PM
Gratulation!

Chainrings looks good. But they’re a bit heavy right? Or am I mistaken. Dur ace is around 13x, as is cybrei?
But that’s probably without the bolts
The 178.4g weight is for 50-34T double rings together including the bolts
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on May 14, 2025, 11:18:11 PM
Hm, the bolts are around 5-8g, so it’s 14x for cybrei or dura ace.
So considering DA around 30g penalty for aesthetics, more expensive, unknown shifting performance and durability. Or am I missing something?


What’s the weight of the crankarms 24mm if I may ask? And do you have more photos please?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on May 15, 2025, 10:21:15 AM
Hm, the bolts are around 5-8g, so it’s 14x for cybrei or dura ace.
So considering DA around 30g penalty for aesthetics, more expensive, unknown shifting performance and durability. Or am I missing something?


What’s the weight of the crankarms 24mm if I may ask? And do you have more photos please?

The rings are $165 USD, which seems pretty fair. Cybrei’s go for £262, and I think Peter said some pros have been testing theirs.

I’ve got the Cybrei metal rings, and they work great, but maybe a bit noisier since it’s carbon plate on aluminium, so you get more sound transfer.

The cranks with 24mm spindles all weigh around 320–330 grams.

I'm getting a set have asked if peter can do me 54-39t as Shimano recommend no more the 16T jump between form chain rings for shifting performance. That's why I like the Cybrei 54-38T set up.
If not I will opt for 53-39t
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on May 15, 2025, 10:31:00 AM
The rings are $165 USD, which seems pretty fair. Cybrei’s go for £262, and I think Peter said some pros have been testing theirs.

I’ve got the Cybrei metal rings, and they work great, but maybe a bit noisier since it’s carbon plate on aluminium, so you get more sound transfer.

The cranks with 24mm spindles all weigh around 320–330 grams.

I'm getting a set have asked if peter can do me 54-39t as Shimano recommend no more the 16T jump between form chain rings for shifting performance. That's why I like the Cybrei 54-38T set up.
If not I will opt for 53-39t

Sure it’s fair compared to cybrei and carbon ti.But so far there is no objective review that we know of regarding their performance etc.
And the weight is higher than ultegra and probably slightly lower than 105.

(May be wrong about the weights tho, seems like it’s purely aesthetics, not performance/value oriented)
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on May 15, 2025, 11:44:32 AM
Sure it’s fair compared to cybrei and carbon ti.But so far there is no objective review that we know of regarding their performance etc.
And the weight is higher than ultegra and probably slightly lower than 105.

(May be wrong about the weights tho, seems like it’s purely aesthetics, not performance/value oriented)


Well I’m buying a set so there will be a review
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Pkd17 on May 24, 2025, 02:54:24 PM
Was there any info on the q-factor? Could not find anything...
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on May 24, 2025, 02:57:36 PM
Was there any info on the q-factor? Could not find anything...
Did you even check the product page?
Says there:
q-factor:149/151mm
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on May 27, 2025, 07:41:36 AM
I love the look and weight of these. Currently run Sram xplr rival 1x with Sram dub cranks vielo chain rings so really need 8 bolt. Unless i change chain ring as well. I would need something in the 40-44 range.

https://www.vielo.cc/products/vielo-alloy-chainrings?srsltid=AfmBOorDSylhx9m1KQqLNi65X6YBgCdYvPy2jdNTgPfPb5cVBXFygkDt
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: ry on June 04, 2025, 09:09:33 PM
Did you even check the product page?
Says there:
q-factor:149/151mm

what product page?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: ry on June 04, 2025, 09:10:41 PM
Is the spider compatible with a Shimano GRX 1x chainring?  Same number of bolts but unsure of the spacing.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on June 08, 2025, 07:35:02 AM
165mm 24mm titanium spindle crankset.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: pandinoyoung on June 08, 2025, 07:48:31 AM
165mm 24mm titanium spindle crankset.

I'm interested in the crankset, but I can't find it on the site and I don't understand what the price is. It's cryptic
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on June 08, 2025, 08:18:36 AM
I'm interested in the crankset, but I can't find it on the site and I don't understand what the price is. It's cryptic
230 USD/ set for 29mm DUB aluminum spindle version, 310 USD/ set for 24mm titanium spindle version

Actually I should have mentioned the pricing couple of months ago.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: bichler.bua on June 10, 2025, 12:45:01 AM
Would you remind us of the crank length, again?
Are you offering 175mm or do you have plans to do so?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JMOS on June 11, 2025, 02:45:40 AM
165mm 24mm titanium spindle crankset.

I noticed these cranks also have a “shoulder” where the spindle attaches to them. Is there a reason for that? On my lexon cranks that shoulder causes a significant gap between cranks and spider/chainrings and is also the reason why the chainrings sit very close to the frame, making it difficult to set up the di2 front mech properly.

https://chinertown.com/index.php/topic,4834.285.html
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on June 11, 2025, 03:16:43 AM
I noticed these cranks also have a “shoulder” where the spindle attaches to them. Is there a reason for that? On my lexon cranks that shoulder causes a significant gap between cranks and spider/chainrings and is also the reason why the chainrings sit very close to the frame, making it difficult to set up the di2 front mech properly.

https://chinertown.com/index.php/topic,4834.285.html


The spider supplied with the XM crank is recessed to allow it to go round the shoulder.
Have you the correct spider type


Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JMOS on June 11, 2025, 03:37:14 AM

The spider supplied with the XM crank is recessed to allow it to go round the shoulder.
Have you the correct spider type

Thank you! I am using the spider supplied with the Lexon cranks. A recessed spider would probably solve my issue. Do you know where to get an alloy one? Sorry for getting OT
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Pkd17 on July 16, 2025, 03:05:18 AM
Did you even check the product page?
Says there:
q-factor:149/151mm

Mabye I am blind, but I have not seen any product page.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on July 16, 2025, 04:04:59 AM
No I was probably very confused.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: RDY on July 18, 2025, 05:40:34 AM
@Peter

Any chance of an MTB version, ideally in 8 bolt?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: BikeLab on July 18, 2025, 05:48:22 AM
230 USD/ set for 29mm DUB aluminum spindle version, 310 USD/ set for 24mm titanium spindle version

Actually I should have mentioned the pricing couple of months ago.

Peter, what is spindle lenght for 24mm and DUB?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: PeterXu on July 29, 2025, 10:59:29 PM
Now we have all 155/165/170mm carbon cranksets in both 29mm DUB aluminum and 24mm titanium versions availble in stock, all sizes chainrings too.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on July 30, 2025, 01:04:37 AM
Peter, do you have 1x chain rings for an XPLR set up?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on August 02, 2025, 09:48:08 AM
For anyone considering chainrings from XM Carbon — I’ve had two sets arrive: a 52/36T and a 53/39T.

I didn’t buy both — XM accidentally sent the 52/36T in error. But to be fair, they responded quickly and sorted it out. The correct 53/39T set arrived today, and the 52/36T was delivered on Monday.
Side by side comparison to the Cybrei rings will post pics when I fit to my DFS Carbon crank with complete weight
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on August 02, 2025, 10:06:05 AM
.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: gbrnole on August 02, 2025, 11:46:46 AM
carbon decal on a milled aluminium chain ring?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on August 03, 2025, 08:20:27 AM
carbon decal on a milled aluminium chain ring?

it’s not a decal. It’s an aluminium chainring with a carbon fibre insert, very similar to how Cybrei makes their rings. I’m assuming from the “decal??” comment that you thought it might be a sticker or something purely cosmetic, but it’s not. It’s an actual carbon insert bonded into the chainring, like the ones from XM Carbon Speed.

To be honest, I don’t think it offers a huge performance benefit — maybe a small weight saving compared to a full aluminium ring, but it’s marginal. For example, I’ve got the Cybrei carbon chainring on my bike, and the aluminium version is only slightly heavier. Peter sent me the Miché link — the construction shown there is pretty much the same.

https://www.instagram.com/p/DIl46bzoYN_/?igsh=d253cnN4Y3BxcGJh
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on August 03, 2025, 12:00:48 PM
It's not really that similar to Cybrei. Cybrei chainrings are hollow, similar to shimano. It's a carbon plate, a gap in the middle and an alu backplate. This lets them make a stronger cross section with less material. Cybrei will have a better weight to lateral stiffness ratio, and with their specific design, shifting is likely to be better
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on August 03, 2025, 03:36:38 PM
It's not really that similar to Cybrei. Cybrei chainrings are hollow, similar to shimano. It's a carbon plate, a gap in the middle and an alu backplate. This lets them make a stronger cross section with less material. Cybrei will have a better weight to lateral stiffness ratio, and with their specific design, shifting is likely to be better

Side by side similarities
Technically maybe not will see what shifting is like.
And they will look good 😂
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on August 05, 2025, 12:18:03 PM
My new cranks are on the way. Peter has said they are Easton interface and has sent me a picture of the spider. I can see it has 4 bolt holes for attaching to chain rings though its not immediately clear to this dunce what fitting they will be. I am after a single chain ring, probably 42 and either an oval or aero for a 1x xplr set up. Can anyone more knowedgeable guide me on what i should be lookking to buy? TIA.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on August 05, 2025, 12:20:12 PM
photo attached
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: gbrnole on August 05, 2025, 12:31:21 PM
My new cranks are on the way. Peter has said they are Easton interface and has sent me a picture of the spider. I can see it has 4 bolt holes for attaching to chain rings though its not immediately clear to this dunce what fitting they will be. I am after a single chain ring, probably 42 and either an oval or aero for a 1x xplr set up. Can anyone more knowedgeable guide me on what i should be lookking to buy? TIA.

you just need a 1x chainring that uses the shimano standard 4x 110BCD mounting pattern. the easton interface is how the spider attaches to the drive side crank arm.

something like this in a 42 or a 44 with a 3mm offset.

https://pq-bike.com/products/x110-bcd-5-bolt-oval?variant=36509001023650
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on August 05, 2025, 02:03:32 PM
I see-though I am running SRAM XPLR?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: gbrnole on August 05, 2025, 02:30:53 PM
I see-though I am running SRAM XPLR?
choose a chainring that's still shimano 4x 110 bcd but compatible with SRAM flat top chains like the one linked below for example. the pass quest one also supports SRAM flat top.

https://alugear.com/chainrings-1x/290-15629-round-1-speed-for-12sp-110-bcd-4b-shimano-asymmetric-roadgravel.html#/11-color-black/33-size-38t
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on August 05, 2025, 03:09:11 PM
Thanks, Ibreally appreciate the advice and links.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on August 11, 2025, 11:59:17 AM
Another silly question :)

Can i not attach an Easton interface 1x chain ring directly to the crank in place of the spider?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on August 13, 2025, 12:34:43 PM
Bumping this because i forgot to order the spider from Peter :)

Will this fit? It Easton so why wouldnt it?

https://absoluteblack.cc/cx-oval-easton-direct-mount-chainring-i wont post a pic in case i break the thread!
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: gbrnole on August 13, 2025, 01:49:21 PM
Bumping this because i forgot to order the spider from Peter :)

Will this fit? It Easton so why wouldnt it?

https://absoluteblack.cc/cx-oval-easton-direct-mount-chainring-i wont post a pic in case i break the thread!
an Easton Cinch direct mount chainring should fit directly on the cranks. Not sure if they have a shoulder on the crank arms that might complicate it, but doubt that.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on August 13, 2025, 02:39:13 PM
I doubt it too so will take the risk-cheers!
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on August 13, 2025, 07:32:34 PM
Why no 160mm cranks! Sad face. :( I suppose I'll give 155 a go!  :D

Can anyone confirm whether or not the single chainrings Peter offers are narrow/wide for a 1 by setup? Or are they prices just for the big ring of a 2 x setup?

I've sent Peter an email for a quote in any case and if the chainring isn't a narrow/wide 1 by specific ring I'll put the order in for a crankset + spider.

Thanks again Sander for doing the research and bringing yet again another product to my attention!  :)

EDIT: Peter got back to me with a quote and I'll finalise the order once I decide on a chainring size. I asked him to confirm that the single chainring is in fact narrow/wide for 1 by, but he did not confirm, but he did quote me for a single speed chainring for 1 by so I'm assuming it's all good.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on August 19, 2025, 05:48:30 AM
Here are some photos.

I think it’s great that there is a washer for the spider lockring.
On the non drive side however the supplied spacers are a bit too smal, I.e. their outer diameter is smaller than the inner diameter of the preload adjuster.
Am I missing something? That way they just slot in and don’t do anything?

There’s one set of bolts too much on the scale.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: patliean1 on August 25, 2025, 10:06:15 AM
170mm length. 24mm titanium spindle version.

Now I just need to figure out which PM and chainrings I wanna go with. Any suggestions?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Dark17 on August 25, 2025, 10:38:31 AM
170mm length. 24mm titanium spindle version.

Now I just need to figure out which PM and chainrings I wanna go with. Any suggestions?

Try the Magene pedal-based PM :D

I wanted to buy Magene pedal PM in the future because walking on Wellgo cleats of Favero Assiomas are shit.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Ludo on August 25, 2025, 10:46:18 AM
170mm length. 24mm titanium spindle version.

Now I just need to figure out which PM and chainrings I wanna go with. Any suggestions?

XCadey, as you tested the magene, or Arcrayo (pretty cheap on cyclegear), it would be nice to have the comparison
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on August 26, 2025, 04:51:27 AM
OK so I just got my crankset today, with carbon spider and 52T 1 by narrow/wide chainring.

I'm running on Dura-Ace, so using a waxed Dura-Ace 12-Speed chain, and the Shimano quick link is "sticking" to the chainring causing the chain to stick on some but not all rotations.

I had to bail out of my ride, but on the stand I can see the quick link is too narrow for the narrow/wide chainring teeth (it doesn't engage completely thus causing the chain to lift off the chainring).

I did some googling and found that Stone narrow/wide chainrings state: You have to replace the 12s shimano original quick link to other brand 12s quick link like KMC YBN SUMC any brand. as the shimano 12s quick link is too narrow.

It's after hours now but I thought I'd raid my parts bin and run a few experiments:
- ZTTO 12-Speed chain quick link, same problem.
- ZTTO 12-Speed chain + ZTTO quick link, same problem.
- SRAM Red E1 chain quick link, no go (stiff links).
- 10-Speed KMC quick link, perfectly smooth (but the link is loose/felt too easy to install).
- 11-Speed KMC quick link, perfecty smooth, and again, felt a little too easy to install.

I'll try to track down a KMC 12-Speed and/or YBN 12-Speed quick link tomorrow when the shops are open. I've let Peter know via email and am waiting for him to respond, but thought I'd bring it up on the forums too as a heads up (and perhaps others here have some suggestions which I'd really appreciate!).
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: patliean1 on August 26, 2025, 07:37:50 AM
I didn't even know Peter offered carbon chainrings too LoL. Thought it was just the cranks.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: jefflinde on August 26, 2025, 07:52:29 AM
170mm length. 24mm titanium spindle version.

Now I just need to figure out which PM and chainrings I wanna go with. Any suggestions?

where are you ordering these?  I went through the thread and am not seeing a product page. 
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on August 26, 2025, 08:02:44 AM
I didn't even know Peter offered carbon chainrings too LoL. Thought it was just the cranks.

Yeah they're the default carbon plated ones that you could get on aliexpress too. Doubt they make them themselves, just like the carbon spiders. I could believe they make the crank arms themselves because they look just different enough to everything else. All the metal parts of the spindle and crank arm interface are identical to all the other generic carbon cranks, so they could be buying those from CENIT who produce cranks for all the others.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Cnasta on August 26, 2025, 08:26:39 AM
I didn't even know Peter offered carbon chainrings too LoL. Thought it was just the cranks.

Me neither! For the right price i'd order a 52/36 combo. Looks really nice :)
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on August 26, 2025, 08:13:43 PM
Forgot to test out one more thing: I forgot I had a 48T Alugear narrow wide 1 by chainring in my parts bin so I thought I'd put it on and see if it works with the 12-Speed Shimano quick link and yup! It's perfect. Saves 60g over the XMCS chainring too.

So just confirming that the XMCS narrow wide 1 by chainrings use a generic narrow wide tooth design which will not work with Shimano 12-Speed quick links (will not work with ZTTO 12-Speed chain quick links either, but not tested it with KMC or YBN quick links).
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Dewa6975 on August 28, 2025, 07:56:10 AM
Hey Justin, did Peter answered your email ? I also ordered his carbon chainrings (52x36) and I only have a shimano chain.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on August 29, 2025, 09:13:03 AM
OK so I just got my crankset today, with carbon spider and 52T 1 by narrow/wide chainring.

I'm running on Dura-Ace, so using a waxed Dura-Ace 12-Speed chain, and the Shimano quick link is "sticking" to the chainring causing the chain to stick on some but not all rotations.

I had to bail out of my ride, but on the stand I can see the quick link is too narrow for the narrow/wide chainring teeth (it doesn't engage completely thus causing the chain to lift off the chainring).

I did some googling and found that Stone narrow/wide chainrings state: You have to replace the 12s shimano original quick link to other brand 12s quick link like KMC YBN SUMC any brand. as the shimano 12s quick link is too narrow.

It's after hours now but I thought I'd raid my parts bin and run a few experiments:
- ZTTO 12-Speed chain quick link, same problem.
- ZTTO 12-Speed chain + ZTTO quick link, same problem.
- SRAM Red E1 chain quick link, no go (stiff links).
- 10-Speed KMC quick link, perfectly smooth (but the link is loose/felt too easy to install).
- 11-Speed KMC quick link, perfecty smooth, and again, felt a little too easy to install.

I'll try to track down a KMC 12-Speed and/or YBN 12-Speed quick link tomorrow when the shops are open. I've let Peter know via email and am waiting for him to respond, but thought I'd bring it up on the forums too as a heads up (and perhaps others here have some suggestions which I'd really appreciate!).


Looks niiice! What Spacer come with the crank and what have you got installed on the bike spacer wise?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on August 30, 2025, 02:35:37 AM
Hey Justin, did Peter answered your email ? I also ordered his carbon chainrings (52x36) and I only have a shimano chain.

Peter must be super busy. He has not responded at all, but 100% the narrow wide chainring he sold me will not work with a Shimano 12-Speed quick link. The Alugear chainring is not only lighter, it's designed to be used with a 12-Speed Shimano HG chain and it's running absolutely perfectly.

Hopefully Peter addresses this with future customers as I now paid for a chainring that I am not using.

Looks niiice! What Spacer come with the crank and what have you got installed on the bike spacer wise?

A bunch of thin spacers came with the cranks but I didn't have to use any of them on either the drive side, or non-drive side.

PS: I've decided to not use the XMCS spider too. It's light, but the weave on it is 3K, which is different to the weave of the chainring. As a visual person this is like having a lounge room with furniture made from 5 different woods. The carbon weave on the ring, and carbon weave on the spider just don't match anything else on the bike, but I'm really happy with the crankarms, both the 155 length as well as how they look so they're staying on the bike!

I have a cSixx Raceface/Easton Direct SPEEDRING coming in the mail. They clearly state that it works with Shimano 12-Speed chains as well as SRAM flat top chains (and KMC chains). It's a heavy bastard, but it's a direct mount so I won't have to use the XMCS spider, or chainring bolts (fuuuuuu so good as I absolutely hate chainring bolts, so 80's!).
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on August 31, 2025, 07:27:42 AM
What do you think about the straightness of the chainring?
Had some challenges setting setting the front derailleur up.

Big chainring
https://youtube.com/shorts/aUhp5eIXrN8?si=xb3Wdpm_9aZyaj2X

Small chainring seems okay
https://youtube.com/shorts/D96uC5az-5Q?si=d1USSB2V84SfjClz

Runs true with DA chainrings.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: getmekd on August 31, 2025, 07:47:28 AM
How much do these chainrings cost?

They seem same as leese from alix, anyone tried those?
https://www.aliexpress.com/item/1005009421064418.html
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on September 01, 2025, 12:09:59 PM
How much do these chainrings cost?

They seem same as leese from alix, anyone tried those?
https://www.aliexpress.com/item/1005009421064418.html


$165usd
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on September 02, 2025, 07:25:39 PM
https://youtube.com/shorts/wdrpVrP92hc?si=iASt-8DxcRgZbn_M

PS: Here's a short video of the issue I'm having with the XMCS 1 by narrow wide chainring with a Shimano 12-Speed quick link. Whilst riding the bike, on load the quicklink gets VERY stuck in the teeth resulting in pretty hardcore chain slap.

Peter had his engineers look at my issue, and they failed to see any issues after their testing, which was videos of them rolling the chainring around on a chain fitted to another bike. IE: they were holding the chainring in their hands rolling it over the chain rather than actualy fitting it to a bike for testing.

He asked me for more photos, or a video of my issue, and whilst I was initially annoyed with their testing, and also having to take off my Alugear chainring to get their chainring back on my bike, to then shoot a video to send. I figure I'll be helping them further develop the product, or at least help them to give future buyers a warning when purchasing the chainring.

Peter has since sent this video to his engineers. Fingers crossed they actually further develop the chainring to work perfectly with Shimano 12-Speed chains (vs. suggesting to use a quick link from KMC/YBN etc.).
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Daviddavieboy on September 03, 2025, 04:01:02 AM
https://youtube.com/shorts/wdrpVrP92hc?si=iASt-8DxcRgZbn_M

PS: Here's a short video of the issue I'm having with the XMCS 1 by narrow wide chainring with a Shimano 12-Speed quick link. Whilst riding the bike, on load the quicklink gets VERY stuck in the teeth resulting in pretty hardcore chain slap.


  I have had this happen to another ring as well. I resorted to filing the teeth a little but it should not happen at all - and probably wouldn't with a 10 or 11 speed chain. I could understand with something cheap but spending this much I would be pissed. Does it catch on the "narrow" tooth of the ring as well ?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on September 03, 2025, 05:07:16 AM
Does it catch on the "narrow" tooth of the ring as well ?

I'm not sure as I've taken it all off again now, but I'm assuming the easiest fix for this issue would be to find a 12-Speed quick link that will work. KMC, YBN, etc. Before splashing more cash on a bunch of different quick links I think I'll wait for a reply from Peter and his engineers.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on September 03, 2025, 06:08:19 AM
What do you think about the straightness of the chainring?
Had some challenges setting setting the front derailleur up.

Big chainring
https://youtube.com/shorts/aUhp5eIXrN8?si=xb3Wdpm_9aZyaj2X

Small chainring seems okay
https://youtube.com/shorts/D96uC5az-5Q?si=d1USSB2V84SfjClz

Runs true with DA chainrings.

Need to reevaluate a proper way to measure the deflection.

Running into a slight issue with the crankset as well, let’s see how this turns out. (But need confirmation about crank bolt torque settings and there may be something with the pedal thread…)
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on September 05, 2025, 10:10:29 AM
My bike shop is having an issue fitting the cranks. I have reached out to Peter for an answe but he will be super busy with his new born.
The cranks are replacing Sram Quark that are torqued to 35 nm when fitting. But when the XCMS cranks are fitted and torgued beyond 15nm the BB gets compressed. My bike shop guy shakes his head and says he doesnt understand.Anyone had this issue or can suggest a solution?
Cheers
Bob
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on September 08, 2025, 03:12:14 AM
XMCS crankset now fitted with a Csixx direct cinch mounted narrow wide chainring (no need for spider or chainring bolts).
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on September 08, 2025, 04:27:07 AM
Can anyone who installed this crankset tell me if you put spacers either end of the spindle? My LBS installed it and found going beyond 15nm applied too much pressure to the BB. I don’t think they used the spacers
Thanks
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on September 08, 2025, 05:14:50 AM
Can anyone who installed this crankset tell me if you put spacers either end of the spindle? My LBS installed it and found going beyond 15nm applied too much pressure to the BB. I don’t think they used the spacers
Thanks

No need for any spacers on a 2023 Cervelo S5 with standard BB and no spacers needed at all on a Tarmac SL8 either (also standard BB). Cranks spin very freely on both bikes.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on September 08, 2025, 06:03:46 AM
Spacers installed and it’s fine.
Issue I’m having is that the crankarm bolt required a lot of torque to be fastened. (*way below 40NM)
Without that I think it becomes a bit loose during a ride.

I’m using motorex anti seize on the ends and in the threads. That’s correct right?
Now it doesn’t move anymore but there’s still the slightest clicking when applying inwards pressure on the crankarm.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Sander2177 on September 08, 2025, 08:33:12 AM
Spacers installed and it’s fine.
Issue I’m having is that the crankarm bolt required a lot of torque to be fastened.
Without that I think it becomes a bit loose during a ride.

I’m using motorex anti seize on the ends and in the threads. That’s correct right?
Now it doesn’t move anymore but there’s still the slightest clicking when applying inwards pressure on the crankarm.

I had sometime recently and it was pedals  ;D so tightened as required to 20Nm.  I would use a little Loctite. The Nm on the XM bolt is low compared to competition which is like 35-40Nm
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on September 08, 2025, 08:56:44 AM
I had sometime recently and it was pedals  ;D so tightened as required to 20Nm.  I would use a little Loctite. The Nm on the XM bolt is low compared to competition which is like 35-40Nm
How do you know the torque settings ?  There is a text of 12-15 NM. But is that for the crankarm bolt or the lockring  that is above (which has the actual number on it)
This also similar on the lexon crankset that I have.

I verified it’s not the pedal because I pushed on the crankarms themselves. But thanks for the suggestion

Is loctite on that bolt really that great of an idea? I thought you’d have issues loosening that bolt at some point anyways (hence the need for special tools)
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on September 08, 2025, 04:52:42 PM
No need for any spacers on a 2023 Cervelo S5 with standard BB and no spacers needed at all on a Tarmac SL8 either (also standard BB). Cranks spin very freely on both bikes.

Can you recall what you torqued to?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on September 08, 2025, 06:08:18 PM
Can you recall what you torqued to?

40nm. Race Face suggests 50nm, but I didn't want to push it with a brand I'm not so familiar with, so 40nm for now, will keep an eye on it over the next few rides.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: patliean1 on September 08, 2025, 07:26:15 PM
What's the final verdict then on the carbon chainrings? Shall I just stick to Shimano rings for now?
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on September 08, 2025, 11:04:39 PM
40nm. Race Face suggests 50nm, but I didn't want to push it with a brand I'm not so familiar with, so 40nm for now, will keep an eye on it over the next few rides.
Did you use any grease on the crank bolts ? Cybrei doesn’t recommend any and I’m just trying to make sure.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on September 08, 2025, 11:39:23 PM
Did you use any grease on the crank bolts ? Cybrei doesn’t recommend any and I’m just trying to make sure.

Since the 80's I've used grease on absolutely everything. Always have, always will.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: JustinFox on September 09, 2025, 10:02:13 PM
PS: Just been speaking to Peter from XMCS and thought it would be only fair for me to give a final report on the issue I was having with the 12-Speed Shimano quick link not meshing well with the XMCS narrow wide chainring.

Problem is solved with a YBN quick link.

IE: I tried 2 Shimano 12-Speed quick links, one used, one brand new and both did not mesh. I tried a ZTTO 12-Speed quiick link, it too was too narrow and did not mesh, but the YBN quick link works fine.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on September 11, 2025, 01:05:40 PM
What's the final verdict then on the carbon chainrings? Shall I just stick to Shimano rings for now?
Depends if you really need the aesthetics.
Personally I would and will just keep using the DA rings.
Better shifting, less weight , price comparable.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: brain on September 13, 2025, 05:37:28 AM
Hey everyone,
last year I was happy with a wheelset from XMCS, so I was excited to try their new carbon crankset. I bought the 165mm crankset with a titanium spindle, a carbon spider, and 52x36 chainrings and installed it on August 15th.

During the install, I immediately ran into a major issue: the chainrings aren't perfectly straight. They have a noticeable wobble, no matter how I mount them (see also
Had some challenges setting setting the front derailleur up.
). This made proper alignment extremely difficult and prevented me from following the standard Shimano setup procedure for the front derailleur. I documented the issues in some videos: https://www.youtube.com/playlist?list=PLpOdLtd9--n6iJWOi2Rnggwd_eTDubUag

I was able to get around the problem by setting up the derailleur so the chainrings wouldn't touch it while I was pedaling, but this is a major hassle. There's only a tiny sweet spot for the adjustment, making the setup process a huge pain.

I reached out to Peter at XMCS directly to report the issue. He advised me to discuss it here on the forums. So, here I am.

To figure out what was wrong, I tested the crankset with a set of Rotor chainrings. The wobble disappeared. This confirmed that the crankset itself and the spider are fine; the issue is with the chainrings themselves.

The chainrings feels like a "beta test" product. I expected much higher quality. If you're considering buying this crankset with the chainrings, I'd advise caution. You might end up with the same frustrating experience I've had.

I hope this helps!
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on September 13, 2025, 06:28:25 AM
Yeah was also advised to discuss this in the forum.
I just installed DA chainrings in the meantime to troubleshoot the crankarms.
And until I can objectively measure the deflection of the chainrings.
But I guess you confirmed my unit.

But I wouldn’t really know what to do. If the chainrings are not completely true there’s always a certain chainring orientation where there will be good shifting and otherwise nothing happens or the chain get dropped off.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: brain on September 13, 2025, 07:06:04 AM
If the chainrings are not completely true there’s always a certain chainring orientation where there will be good shifting and otherwise nothing happens or the chain get dropped off.
I agree, this is far from an ideal situation. My "fix" of adjusting the front derailleur has made it somewhat rideable, but it's a frustrating compromise and not a long-term solution. I'm already looking into a replacement set of chainrings.

I'm also wondering why the chainrings look identical to those sold under the Leese brand on AliExpress.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on September 13, 2025, 07:50:57 AM
I agree, this is far from an ideal situation. My "fix" of adjusting the front derailleur has made it somewhat rideable, but it's a frustrating compromise and not a long-term solution. I'm already looking into a replacement set of chainrings.

I'm also wondering why the chainrings look identical to those sold under the Leese brand on AliExpress.
They do look very similar but the leese ones don’t have the bolts. Whatever that matters.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: toxin on September 13, 2025, 11:46:35 AM
I'm also wondering why the chainrings look identical to those sold under the Leese brand on AliExpress.

Because they both come from the same factory.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: brain on September 18, 2025, 03:52:52 PM
Because they both come from the same factory.
Is that an assumption or something that's been confirmed? :o
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Kiselev on November 07, 2025, 10:48:44 PM
Hi guys. How wide the assembly is?
Example attached to make the question clear.

Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Mariuszuzd on December 16, 2025, 03:33:36 AM
Hi all, I have just got the crank, okay, yesterday  ;D Looks amazing, the carbon fiber look really nice for me! The crank in size 165 mm for SRAM DUB weight 330 g, sometimes the weight showed 329 g. A bit heavier than Sram RED E1, but looks better (315g) 8). Weight with the 46t chainring, Xcadey power meter gen 2 and five bolts is 532 g. The whole installation and assembling was very easy, no issues at all! For now the Favero Assioma pedals will be installed, for the testing purpose. Due to GPLama content I promise to take my own tests and I will compare Elite Justo vs Favero Assioma Dup vs Xcade Gen 2. Regarding the crank, I will provide the feedback as well.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Rebel_Yell on January 22, 2026, 11:36:08 AM
Asking for any new reviews from any here that purchased this crankset?

Thanks
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Bobinski on January 22, 2026, 12:35:36 PM
Asking for any new reviews from any here that purchased this crankset?

Thanks

Excellent. 165mm at 330ish g's. No issues on install on Sram dub. Look fab in the light.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: adc on January 23, 2026, 02:03:34 AM
Purchased 165mm Ti spindle cranks in October. Super sleek look and they're exactly what you'd expect from a crank. There's nothing flashy besides it being lightweight, if you like the look you really can't go wrong.

Just install the crank correctly and check if you need a spacer to ensure the easton cinch doesn't rub against the BB. I compressed my BB bearings because I just assumed assembly. Got it wrong and caused a few issues.

One BB later and all is good.

You should probably ask and purchase an extra pre-load ring if possible, you never know when that thing will break (if it does). Harder to find aftermarket 24mm spindle ones.

Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Mariuszuzd on January 23, 2026, 04:22:02 AM
Asking for any new reviews from any here that purchased this crankset?

Thanks

Hi, I'm using that with Xcadey spider and some ali chainring since 15th of December. In general, no issues, installation was very easy and quick, looking very good, the crankset is stiff, I'm very satisfied. Maybe that is not the lightest but for sure is solid. Lastly, maybe the preloader ring is plastic, that potentially could be some weakest point of the product. For now, I only rode indoor, so I didn't test it outdoor.
Title: Re: Xiamen Carbon Speed 2025 new carbon crankset
Post by: Tines on August 03, 2026, 02:57:22 PM
Hi everyone, I wanted to share a quick update on the XMCS 52/36 chainrings since they don't get talked about much these days.

Note: These are just my initial unboxing impressions—I can't install them yet due to an issue with my crankset, so I haven't tested the shifting performance.

For context, I had shifting issues with the first-generation version on my Ultegra 12-speed setup. This newly revised version shows some clear updates:
Visuals & Construction: The new chainrings look distinctly different (the new one is top/left in the photo).
Outer Chainring: The rivets have been repositioned, the back is no longer milled out like the original, and the crank arm opening has been reworked.
Weight: The design changes are reflected in the weight—the new pair comes in at 182.3g, compared to 198.9g for the old set (weighed on my kitchen scale).
Inner Chainring: The small ring now features a carbon finish. Interestingly, it's on the side facing the outer ring, so it won't really be visible once installed—correct me if I'm wrong on that!
While I can't speak to the shifting quality just yet, I’ll post another update once my crankset issue is sorted out. Overall, I’m really happy with how constructive the process was and it’s great to see the brand making tangible revisions.