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Carbon Speed OEM Wheels Long Term - Still Light, Still Affordable
The reviewer discusses their experience with Xiamen Carbon Speed wheels, specifically mentioning a 50mm depth carbon road rim model. They highlight using these wheels for several months across different terrains and frame sets, noting their performance in various weather conditions. The reviewer emphasizes the wheels' specifications, including carbon spokes, ceramic bearings, and a 54-tooth Star ratchet design. They also mention the wheels' aerodynamic optimization, durability, and value for money.
AI-Summary
Pros
- Lightweight (under 1,200g)
- Modern, wide rim design (26mm internal, 34mm external width)
- Carbon spokes and ceramic bearings
- Good crosswind control
- Aerodynamically optimized
- Customizable options (depth, decals, finish)
- Good value for money ($850 USD)
- Durable performance on gravel and road
Cons
- Long-term durability not fully tested (only 3 months of use)
- No rapid wear test conducted
Key Points
- 50mm depth carbon road rim
- Carbon spokes
- Ceramic bearings
- 54-tooth Star ratchet design
- 26mm internal width, 34mm external width
- Under 1,200g weight
- Aerodynamically optimized for wider tires
- Good crosswind control
- Customizable options available
Carbon Speed OEM Wheels - The LIGHTEST and BEST VALUE Wheels I've Ever Ridden
The reviewer discusses the CS-D50CU-33 disc brake 50mm depth carbon road rim 33mm (Xiamen Carbon Speed) extensively throughout the video. They highlight that these rims are newly released by Carbon Speed and are among the lightest they have ever featured on their channel. The reviewer emphasizes the value proposition, noting the modern rim width profile, carbon spokes, ceramic bearings, and star ratchet hub engagement at a price point of $850 USD. They also mention the customization options available directly from the factory, including decal colors and finishes. The reviewer tested the wheels in various conditions, including high winds and rough pavement, and found them to be stable and responsive.
AI-Summary
Pros
- Lightweight (under 1,200g for the pair)
- Modern rim width profile (34mm external, 26mm internal)
- Carbon spokes
- Ceramic bearings
- Star ratchet hub engagement
- Customizable decals and finishes
- Stable in crosswinds
- Responsive under pedaling
- Fantastic value at $850 USD
- Direct factory ordering reduces costs
- Tubeless compatible
Cons
- No tubeless rim tape applied from the factory
- Bearings and hub internals could use more grease
- Custom order process requires patience (7-10 days production plus shipping)
Key Points
- 50mm depth
- 34mm external width
- 26mm internal width
- Carbon spokes
- Ceramic bearings
- 54-tooth star ratchet hub
- Shimano/SRAM XDR hub options
- 1,178g total weight
- $850 USD price
- Customizable decals and finishes
Hi all,
After a bit of a delay, I’m finally sharing my first impressions of a prototype gravel wheelset from XM Carbonspeed. I had a chance to chat with Peter from XMCS at Eurobike and received the wheels at a discounted rate in exchange for providing honest feedback here.
Unboxing & Initial Impressions
• Finish: Matte satin surface, golden water-transfer logos, raw titanium spokes, black hubs and nipples – very clean, high-end look.
• Rim profile: 42 mm outer / 33 mm inner width. Looks massive at first glance, but pairs surprisingly well with 40–45 mm tires and creates a smooth aero transition.
• Build quality: Excellent. The internal finish is flawless – no carbon debris, resin residue or visible imperfections.Measured Weight (kitchen scale)
• Front: 615 g
• Rear (HG freehub): 720 g
• Total: 1,335 gThe XDR version is ~3 g lighter. Very impressive numbers for such wide rims with titanium spokes. XMCS claims T1100 carbon – which could explain the low weight, assuming durability holds up.
Tubeless Setup
• Tape: Buckless 35 mm
• Valves: Buckless aluminum
• Sealant: Schwalbe Doc Blue (60 ml front / 65 ml rear)
• Tires: Tufo Gravel Thundero – front 40 mm, rear 44 mm (both used)Setup was straightforward – both tires seated immediately with a Tyre Booster.
Measured Tire Widths (@32 psi, compared to Zipp 303s)
• Front: 39.6 mm → 43.6 mm
• Rear: 43.3 mm → 47.6 mmNext Steps
I’ll be testing them further on my custom titanium gravel bike – visually a perfect match. Ride impressions to follow soon.If you have any questions or want specific feedback, feel free to ask!
View original forum comment in Chinertown-Forum:
Cyclocross Frames, Wheels & Components → XM Carbonspeed Ultra-Wide G...