Author Topic: Zen Carbon Wheels Xiamen  (Read 277783 times)

Sander2177

Re: Zen Carbon Wheels Xiamen
« Reply #105 on: August 28, 2025, 03:26:26 PM »
Do they have a website or a contact point? I am looking for 650c wheels.

Here’s their Instagram: https://www.instagram.com/zencarbonbike?utm_source=ig_web_button_share_sheet&igsh=ZDNlZDc0MzIxNw==
Website: https://zencarbonbike.com/ — but honestly, it’s not great and definitely not up to date. They focus more on OEM, so a lot of the rims and options (like mine) aren’t even listed.

If you want to reach out, best way is to message directly or useinfo@zencarbonbike.com
WhatsApp: +86 15160726618

Rebel_Yell

Re: Zen Carbon Wheels Xiamen
« Reply #106 on: August 28, 2025, 04:36:01 PM »
Here’s their Instagram: https://www.instagram.com/zencarbonbike?utm_source=ig_web_button_share_sheet&igsh=ZDNlZDc0MzIxNw==
Website: https://zencarbonbike.com/ — but honestly, it’s not great and definitely not up to date. They focus more on OEM, so a lot of the rims and options (like mine) aren’t even listed.

If you want to reach out, best way is to message directly or useinfo@zencarbonbike.com
WhatsApp: +86 15160726618

Zara is very responsive on the WhatsApp # listed above by Sander!!

patliean1

Re: Zen Carbon Wheels Xiamen
« Reply #107 on: August 28, 2025, 04:53:41 PM »
I would love to try a set of 40/45 wheels.

Unfortunately the closest place to get decent climbing is a 2 hour drive from Chicago. Lots of rolling hills. 1600m of climbing for every 100km of riding. Nothing sustained longer than 3-4 minutes however. Maybe I'll fly out to California this winter.

iamdanielbike

Re: Zen Carbon Wheels Xiamen
« Reply #108 on: August 29, 2025, 12:04:28 AM »
Hi guys, I'm new to the forums. I want this post to serve as an introduction: I'm Daniel and read the forums mostly to learn about more straightforward cycling products made in China. I grew kind of bored of the marketing especially for road bikes, so here I am, looking for a new frame on which to build an all rounder road bike.

On another note, I respect your relationship with the brand and people behind it, but don't you think a sub-1000 gram wheelset can be worryingly light?


Enjoy life and make a better world for everyone.

Lotnik

Re: Zen Carbon Wheels Xiamen
« Reply #109 on: August 29, 2025, 12:43:44 AM »
On another note, I respect your relationship with the brand and people behind it, but don't you think a sub-1000 gram wheelset can be worryingly light?
No, why?  ;D

kubackje

Re: Zen Carbon Wheels Xiamen
« Reply #110 on: August 29, 2025, 02:36:47 AM »
That's why rider weight limit exist

Sander2177

Re: Zen Carbon Wheels Xiamen
« Reply #111 on: August 29, 2025, 03:52:37 AM »
Hi guys, I'm new to the forums. I want this post to serve as an introduction: I'm Daniel and read the forums mostly to learn about more straightforward cycling products made in China. I grew kind of bored of the marketing especially for road bikes, so here I am, looking for a new frame on which to build an all rounder road bike.

On another note, I respect your relationship with the brand and people behind it, but don't you think a sub-1000 gram wheelset can be worryingly light?

No, I don’t think a 1000g wheelset is worryingly light at all — there are wheelsets out there that come in at 650–750g, so it’s not unheard of. When I made my decision, I did put some thought into it. I’m around 75kg on a good day, and if you’ve read the thread, you’ll know my front wheel has a 90kg rider weight limit. So I went ultralight on the front.
For the rear, I could’ve gone with a 90kg limit too, but I chose a wheel rated for 100–110kg to give myself a bit more margin. That’s in line with other respected brands like CRW (Craft Racing Works), which also have 100kg rider limits — and I’ve used those wheels before without any issues.
Yes, in hand they feel light, but if you’re going to ride a wheel with a 90kg rider limit, you just need to be mindful of how and where you’re using it., I’ve also got another set of 60/65 mm wheels with a 90kg rider limit that weigh around 1230g, and I’ve been riding them for months with no problems and I'm in the UK where we are not exactly know for our smooth roads  ;D

So if you're someone considering going down the ultralight route with 90kg rider weight limit wheels, you really need to think about how you're going to use them. Personally, I wouldn’t use a wheel with that limit for anything other than road riding. I know some people use them on gravel, and some are even sold as gravel-capable — but if I were going to run a 90kg limit wheel on gravel, I’d want to be around 65kg myself.
If you're looking for something super lightweight but still robust, brands like XM CarbonSpeed are worth checking out. They use T1100 carbon in their lightweight wheels, which is rare — most brands stick to T1000. And despite being lightweight, many of XM’s wheels have a 120kg rider weight limit, which says a lot about their engineering.
So yeah, it really depends on the brand, the materials used, and how well the wheels are designed. Just make sure the specs match your riding style and weight.

Sander2177

Re: Zen Carbon Wheels Xiamen
« Reply #112 on: August 29, 2025, 09:03:01 AM »
I would love to try a set of 40/45 wheels.

Unfortunately the closest place to get decent climbing is a 2 hour drive from Chicago. Lots of rolling hills. 1600m of climbing for every 100km of riding. Nothing sustained longer than 3-4 minutes however. Maybe I'll fly out to California this winter.


Good Idea give yourself some climbing legs  ;D ;D

Gianpy

Re: Zen Carbon Wheels Xiamen
« Reply #113 on: August 29, 2025, 09:12:54 AM »
Thanks to this discussion, I've decided to contact Zara at Zen Carbon for information on an ultralight 40/45-depth wheelset.

In my area in Italy I ride about 1000 meters of elevation gain in 35 km distance so I'm looking for climbing wheels for my new SPCyle R088 and I think this choice is the most suitable for me.

I still have a big question: 21 or 24-depth internal rim?
I've always thought that wider wheels are better for heavier weights, I weigh 60kg, and I'm unsure what advantages I could get.
Currently, for my 60kg weight (plus 9kg of bike) with 25mm tires and a 21mm internal rim, I inflate to 69/74 PSI (4.8/5.1 bar), and I'm happy with it.
With the 24mm  internal rim, I'm forced to fit a minimum 28m  tire.
Sram's tire pressure calculator suggests that with 28mm tires and a 24mm internal rim, I should inflate to 46/60 PSI (3.9/4.1 bar).

Aside from looking like you have flat tires ;D  what are the real benefits?

Sorry for the maybe a bit trivial questions but I'm still learning!
« Last Edit: August 29, 2025, 09:18:50 AM by Gianpy »

toxin

Re: Zen Carbon Wheels Xiamen
« Reply #114 on: August 29, 2025, 09:29:26 AM »
How good are your roads and do you feel like you could use some more comfort? Additionally how important is aero to you?

Rebel_Yell

Re: Zen Carbon Wheels Xiamen
« Reply #115 on: August 29, 2025, 10:10:04 AM »
Thanks to this discussion, I've decided to contact Zara at Zen Carbon for information on an ultralight 40/45-depth wheelset.

In my area in Italy I ride about 1000 meters of elevation gain in 35 km distance so I'm looking for climbing wheels for my new SPCyle R088 and I think this choice is the most suitable for me.

I still have a big question: 21 or 24-depth internal rim?
I've always thought that wider wheels are better for heavier weights, I weigh 60kg, and I'm unsure what advantages I could get.
Currently, for my 60kg weight (plus 9kg of bike) with 25mm tires and a 21mm internal rim, I inflate to 69/74 PSI (4.8/5.1 bar), and I'm happy with it.
With the 24mm  internal rim, I'm forced to fit a minimum 28m  tire.
Sram's tire pressure calculator suggests that with 28mm tires and a 24mm internal rim, I should inflate to 46/60 PSI (3.9/4.1 bar).

Aside from looking like you have flat tires ;D  what are the real benefits?

Sorry for the maybe a bit trivial questions but I'm still learning!

My limited knowledge tells me you will have a more comfortable ride. That will be the biggest take away.

h0ldb88r

Re: Zen Carbon Wheels Xiamen
« Reply #116 on: August 29, 2025, 10:20:02 AM »
I would love to try a set of 40/45 wheels.

Unfortunately the closest place to get decent climbing is a 2 hour drive from Chicago. Lots of rolling hills. 1600m of climbing for every 100km of riding. Nothing sustained longer than 3-4 minutes however. Maybe I'll fly out to California this winter.

Patrick, try out a 50/40 or 45/50 instead! I'll see you in NorCal!

Gianpy

Re: Zen Carbon Wheels Xiamen
« Reply #117 on: August 29, 2025, 11:00:27 AM »
How good are your roads and do you feel like you could use some more comfort? Additionally how important is aero to you?

Hi toxin,

I only ride asphalt, I don't race, and I don't ride dirt or gravel,  I use a mountain bike for that! I don't use tubeless or latex, only on MTB  ;D
The asphalt in my area is pretty good. There are a few potholes, but I'm not lying.

I'm currently riding 2021 Farsport Feder wheels with satisfaction, 21mm internal width and 30mm depth, with DT240 hubs, weighing ~1,250g.
And I'm not very aerodynamic by nature, I just wish I could get some wheels reliable as these are!
And also, I prefer 40/45mm max high because the wind scares me!

I might actually try fitting a 28mm GP5000 to my current rims and see how I get on, I've tried it in the past but without any major differences and if I don't like them I'll fit it to the wife's bike!  ;D

One last thing, you confirm that putting 25mm tires on wheels with a 24mm internal channel is pure madness, right?
« Last Edit: August 29, 2025, 11:03:38 AM by Gianpy »

toxin

Re: Zen Carbon Wheels Xiamen
« Reply #118 on: August 29, 2025, 11:36:43 AM »
Well roads don't have to be ruined to be bad, a rough road surface and cracks can tilt the balance in favour of wider tyres pretty quickly, even if the surface looks pretty uniform otherwise.

The best thing you could do for aero stability is put an aero 111 tyre on the front wheel. Alternatively a wider rim with a rounded nose and a narrower tyre will help as well.

If you were looking for stability regardless of tyre choice, a rim with very wide hook bead like the attached picture will be the most effective, but because it's so wide, it'll be a bit heavier and aerodynamically slow. I believe Zen should have access to these since they seem to be getting a lot of their rims from the same places as others who offer the same designs.

Sander2177

Re: Zen Carbon Wheels Xiamen
« Reply #119 on: August 29, 2025, 11:47:53 AM »
Well I must be crazy with my 28mm tyres on 24 and 25mm internals  ;D ;D
Zen don’t do ultralight in 21mm only superlight.
But definitely more comfortable with wider widths not doubt we will go full circle and we will be told it’s all wrong and narrow is better  ;D
Still can get a respectable weight 45/50 with DT Swiss hubs and sapim spoke 1235g.
Get that DT have the rep but they are $$$ I’m likely to get a set of winter training wheels with steel spokes but will probably go with the Z180 hub zen have which is as Toxin said a Goldix hub half the cost of DT Swiss.