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Re: Rim failures Nearly everyone is exceeding ISO 4210, the lowest safety factor I've seen is 1.5x, but passing the standard doesn't guarantee reliability. A QA program requires statistical sampling and understanding the failure rate, etc. That is going to be a huge input into reliability and recalls, likely as much as the design. I also don't know how relevant that ISO test is with tubeless, but that's for someone smarter than me to figure out.

I've never worked with Zen, but nearly a year on, I am pleased with my wheels from DFS. I'm a fan of THR Industries hubs, and I don't regret getting them built with steel spokes. After completing a bunch of aero testing, the results have me selling a couple of my other wheelsets and sticking with these as both an all-around and an aero wheelset. I dove into their catalogue to find a front wheel profile that matched the original HED Toroidal patents' general profile, and paired with the Aero 111, it's a fast and stable enough setup for my uses.
July 13, 2025, 01:34:42 PM 		1
DFS Carbon Wheels Long-Term Review – DFS Carbon 60/65mm Wheelset
After 6/7 months of consistent use it’s time to share a proper long-term review. I bought these back in April

Specs
Rims: T1000 UXL
Front: 60mm – 400g
Rear: 65mm – 423.6g
25mm inner / 32.4mm outer width
UV profile
Hubs: H-Works SR270 – 276g 20 spoke holes from and rear
Spokes: 5.1mm wide bladed carbon,

Actual Weight: 1231g (vs 1256g estimated) — This was light when I bought them now these are likley considered heavy afet only 6 monts l :lol:

I bought direct from DFS Carbon after chatting with Angler Wang, the owner. He was persistent in saying he had a quality product — and to be fair, he backed it up. Super responsive, answered all my questions, and gave me confidence to go ahead.
I paid via bank transfer (better rate, no PayPal fees) — and yeah, I did wonder if anything would actually turn up . But everything arrived perfectly packaged and bang on time

Over 6/7 months of use, I had zero issues. No truing, no bearing replacements, no spoke tension problems. Just consistent, reliable performance.
The build quality was spot on — and the finish looks great too.

I have now sold my XMC 50/60s and have a set of DFS 55/55mm ordered on there own R2 hub 21/24H in Titanium Colour picture attached is an example on 3.2mm Carbon spokes same rim rim profile as the 60/65S Estimated Weight is 1157.5grams.
Originally did not order this hub at the time as did not want to spend the extra dosh:

Hub Specs below have anyone else by chance have these hubs at all?

Material & Construction
Hub Shell: Imported 7075 T651 aluminium alloy
Axle: TC4 titanium alloy
Axle Diameter: Front & Rear: 17 mm


Dimensions
Brake Mount:
Front Disc: 50 mm
Front Non-Disc: 33 mm
Rear Drive: 74 mm
Rear Disc: 45 mm


Spacing: 100 / 142 mm
Flange Distance: 18.5 mm
Flange Diameter:

Front: 62 mm
Rear: 56 mm

Center-to-Flange: 51.8 mm


Spoke Configuration
Hole Count: 21 / 24
Pattern: Front & Rear 2:1 ratio, 3-cross drive side


Bearings
Type: TPI Steel or TPI Ceramic
Front Hub: 6803 × 2
Rear Hub Shell: 6903 × 1 + 6803 × 1
Freehub Body: 6803 × 2

Ratchet System
Model: THR SSF low-resistance, fast engagement
Tooth Count: 45T (standard) / 72T (optional)
Engagement Angle: 8° / 5°

Axle System
Type: Thru-axle with bearing preload adjustment
Insertion: Push-fit

Compatibility
Freehub: HG / XDR
Sealing: No sealing ring, water-resistant design

Weight
Front: 89 g
Rear: 194 g
Total: 283 g
November 11, 2025, 09:29:38 AM 		1
Re: Zen Carbon Wheels Xiamen Hi friends :)

I am close to ordering a wheelset from ZEN. However I am still a bit unsure which profile to go for. I am torn between the 24 iW / 31 outer and the new 25 iW / 32 outer.

I already am pretty much set for:
- 60/60mm depth
- 3,1 ultralight carbon spokes (dont like the looks of the 5,1mm)
- steel bearings
- 54t hub

I am at 85kg bodyweight (coming from Crossfit and weightlifting). The bike (about to order an X68 frameset) will be used almost exclusively in the flats.

Any advice on rim width etc. is welcome!
November 21, 2025, 07:46:57 AM 		1
Re: Zen Carbon Wheels Xiamen Wheelset ordered :)


November 26, 2025, 03:32:50 AM 		1
Re: DFS Carbon Wheels I received photos this morning of my new wheelset: 55/55mm rims with the R2 hub—ordered 4 weeks ago, which seems pretty standard. Specs are:

U/V profile
25mm internal width, 32.2mm external
UD Gloss finish
3.2mm carbon/titanium spokes
UXL rim, 90kg rider limit

Estimated weight was 1135g, actual came in at 1098.4g.
Pissing with Rain Today  :(  hopefully get some nice fine dry weather before Christmas
Shipping this week so will likely arrive when I am on holidays next week
December 01, 2025, 03:45:59 AM 		1
Re: Zen Carbon Wheels Xiamen I thought i give my thoughts on them.
I had order my wheel just a day before their golden week .. Zara team work around the clock to get my order up as i was due to fly overseas to cycle.. and they did.. but i had to postpone my trip due to the typhoon hitting Taiwan.. but i have been putting some serious mileage on them and they are holding up pretty well. Mine is the version before the ultra light weight version.. its about 1017 grams.
fast forward to 2 month later and i had the opportunity to visit their factory and of cos their cold storage where they kept their prize Toray material. We spend some time discussing about Zen Wheel future development and i would say it definitely worth giving them a try. they are much smaller scale compare to some of the others factories so the range of rim SKU might be not exhaustive but whatever they have right now should cater to our needs and the attention to details and quality is decent.. to give you some context, i had been using light bicycle since 2012 and farsport wheel for a long time and working with Zen....i would say they just as good.
December 10, 2025, 09:18:36 PM 		1
Re: Zen Carbon Wheels Xiamen Good Day Member
We now have now added Titanium Spokes to the VaporLite Range

VaporLite Ti Wheelset Titanium Spokes $749usd
36 mm → 999g
40 mm → 1019g
45 mm → 1089g
50 mm → 1099g
55 mm → 1179g
60 mm → 1189g

VaporLite Sport Sapim CX Ray Spokes $699usd
36 mm → 1068g
40 mm → 1088g
45 mm → 1158g
50 mm → 1168g
55 mm → 1248g
60 mm → 1258g

Zen VaporLite Pro carbon Spokes $799
36 mm → 914g
40 mm → 934g
45 mm → 1014g
50 mm → 1014g
55 mm → 1094g
60 mm → 1104g

(Release Date TBC)
VaporLite Ultra (Current Estimated Weights TBC)

36 mm → 889g
40 mm → 909g
45 mm → 979g
50 mm → 989g
55 mm → 1069g
60 mm → 1079g

120 kg load limitation
(All weights ±30 g)
Mixed depths available E.G 50/60, 55/60
Custom Builds with other spokes or different hubs for your example DT Swiss hubs (180/240/340) available on request for VaporLite Rim please contact us.

info@zencarbonbike.com
 Zara (WhatsApp): +86 15160726618
December 14, 2025, 02:55:19 AM 		1