What the forums say about Xiamen CarbonSpeed (XMCS)
Xiamen CarbonSpeed (XMCS) is a Chinese factory-direct brand that sells wheels, frames, handlebars, cranks and other components, with ordering handled directly through Peter or Allen via WhatsApp, email or the website. Customers consistently praise the value, customisation depth and Peter's responsiveness, while recurring complaints concern slow or missing email replies, inconsistent quality control on some wheelsets, and shipping or packaging issues. Lead times are typically quoted as 15-25 working days for production plus 10-20 days shipping, though delays of several weeks beyond quoted times have been reported. Warranty handling is generally described as generous and painless, with replacement parts or wheels sent free of charge, but the company has also stopped direct parts sales at times and payment options have been disrupted by PayPal account limitations.
Pros
- Peter and Allen are widely praised for responsive, knowledgeable and patient communication, especially via WhatsApp.123
- Warranty and problem resolution are generally described as generous and painless, with free replacements sent without argument.45
- Pricing is considered excellent value, often hundreds of dollars cheaper than comparable Western or Light Bicycle wheelsets.678
- Customisation is extensive, covering rim depth and width, spoke type and count, hubs, bearings, ratchets, freehub type, finishes and decals.91011
- Build quality and durability are frequently reported as solid, with wheels arriving true and remaining reliable over thousands of kilometres.121314
- Shipping is often fast, with several customers receiving orders in under three weeks and some in about a week.15816
- Duty pre-paid shipping options are available and have worked well for EU and US customers, avoiding customs surprises.171118
Cons
- Email communication is repeatedly reported as slow, brief or unanswered, with customers advised to use WhatsApp instead.192021
- Quality control is inconsistent, with several reports of wheels arriving out of true, rim wobble, scratched finishes or hub issues.22523
- Lead times can overrun significantly, with some customers waiting a month or more beyond quoted build times without updates.242520
- Packaging is sometimes flimsy and boxes have arrived damaged, occasionally with cosmetic damage to wheels.218
- Payment options have been disrupted, with PayPal accounts frozen or limited at times, forcing bank transfers.262720
- Published hub and spoke specifications are limited, which some buyers see as a barrier to custom ordering.2829
- Direct parts sales have been stopped at times, with the company only selling complete bikes, limiting access to frames and components.10
Key Facts
- Ordering is handled directly via WhatsApp or email with Peter or Allen; the website is secondary and has had browser compatibility issues.303110
- Typical production lead time is 15-25 working days, plus 10-20 days shipping, though delays are common.732
- Payment is usually via PayPal, but bank transfer has been required when PayPal was unavailable; a 5% PayPal fee may apply.72627
- Warranty is generally 3 years on new light hubs and rims, and 5 years on new framesets.32
- Customisation includes rim depth, internal width, spoke count and type, hub choice, bearings, ratchet tooth count, freehub type, finish and decals.91011
- Shipping can be duty pre-paid for EU and US customers, and consolidated shipping is cheaper but slower and may lack tracking.17711
- The company has two websites, which some customers found confusing, and the EU-facing site xmcs.nl sells only complete bikes.3334
- Contact is via xmcarbonspeed.cc and Peter's WhatsApp +86 182 5080 8148.107
Sources
- 1bmrkWeight-Weenies
- 2JosefkWeight-Weenies
- 3KrispyKWeight-Weenies
- 4LookEzraWeight-Weenies
- 5pushpushWeight-Weenies · 2 posts
- 6w1ntermut3Weight-Weenies
- 7Sander7721Weight-Weenies · 5 posts
- 8aerolfWeight-Weenies · 3 posts
- 9DrPoonloverWeight-Weenies
- 10Requiem84Weight-Weenies · 4 posts
- 11Ozy361Weight-Weenies · 2 posts
- 12toxinWeight-Weenies
Show 22 more
- 13gurk700Weight-Weenies
- 14plunderWeight-Weenies
- 15mmaslenWeight-Weenies
- 16Tpduke112Weight-Weenies
- 17jffWeight-Weenies
- 18gmarmarWeight-Weenies
- 19mountainerWeight-Weenies
- 20OtterSpaceWeight-Weenies
- 21Jz91Weight-Weenies · 2 posts
- 22justinfoxphotosWeight-Weenies
- 23ffbawdWeight-Weenies
- 24PerpWeight-Weenies
- 25jzinckgraWeight-Weenies
- 26purpsyrupWeight-Weenies
- 27b3nchiiiWeight-Weenies
- 28priffy2026Weight-Weenies
- 29ZHVeloWeight-Weenies
- 30legstrongWeight-Weenies
- 31sorniiWeight-Weenies
- 32xmcarbonspeedWeight-Weenies · 3 posts
- 33goroldMWeight-Weenies
- 34andy4g63Weight-Weenies
Most discussed in the forums
XMCS T1100 20/20H Carbon Spoke
Xiamen CarbonSpeed (XMCS)Wheels
Discussed in 72 forum posts
CS-D50CU-33 disc brake 50mm depth carbon road rim 33mm (Xiamen Carbon Speed)
Xiamen CarbonSpeed (XMCS)Rims
Discussed in 50 forum posts
XMCS T1100 26IW 16/18H Carbon Spoke
Xiamen CarbonSpeed (XMCS)Wheels
Discussed in 45 forum posts
XMCS VRT
Xiamen CarbonSpeed (XMCS)Frame
Discussed in 44 forum posts
XMCS GRT
Xiamen CarbonSpeed (XMCS)Frame
Discussed in 30 forum posts
XMCS T1100 24IW 16/18H Carbon Spoke
Xiamen CarbonSpeed (XMCS)Wheels
Discussed in 14 forum posts
Xiamen CarbonSpeed (XMCS) factory tours & brand videos on YouTube
00:17:55
MyBikeParts
This Carbon Wheel Factory Builds Its Own Hubs - And a Frame You Haven’t Seen Before | Peter Xu XMCS
February 25, 2026
The video is a factory tour of Xiamen CarbonSpeed (XMCS) in Xiamen, China, hosted by founder Peter Xu. It reveals the company's engineering-first approach, showcasing in-house production of hubs, rims, and frames, including a new 2026 racing frame with proprietary technology. The tour emphasizes transparency, reliability, and rigorous ISO-standard testing.
- The company is based in Xiamen, Fujian province, China.
- XMCS operates four specialized facilities: offices, a hub factory, a rim factory, and a frame factory.
- The company produces hubs completely in-house, including the Archer Light series and titanium freehub options.
- Hub shells undergo ISO-standard testing exceeding 200,000 cycles.
- Frames are constructed using monocoque (monocoque-only) methods.
News & Media Coverage for Xiamen CarbonSpeed (XMCS)
Bike part reviews of Xiamen CarbonSpeed (XMCS)
Crank 1
Rims 1
Wheels 15
| Name | Weight | Internal Rim Width | Brake Type | Freehub Body | Spoke Model | Hub | Reviews | Price | Added | |
|---|---|---|---|---|---|---|---|---|---|---|
 | 26 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | HS606 | 1 100,00 $ | 17d | ||||
 | 1375g | 21.4 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | Sapim CX-Ray | Carbon Speed R280 straight-pull | 525,00 $ | 1m | ||
 | 1170g | 24 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | XMCS-TS02 titanium | R248 titanium colour in-house | 4 | 1 800,00 $ | 1m | |
 | 1235g | 32.5 mm | Disc (Center Lock) | Shimano HG, SRAM XDR, Shimano MicroSpline | Sapim CX-Ray | R248 / 506 / M306 Boost | 2 3 2 | 960,00 $ | 6m | |
 | 1190g | 21.4 mm | Rim Brake | Shimano HG, SRAM XDR | 3.8mm carbon spokes | Carbon Speed in-house 20/24H straight-pull | 850,00 $ | 1m | ||
 | 21.4 mm | Rim Brake | Shimano HG, SRAM XDR | CX-ray | Carbon Speed in-house hubs | 640,00 $ | 22d | |||
| 1140g | 26 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | 3.8mm / 5.0mm carbon spokes | Carbon Speed 506 straight-pull | 1 6 1 | 850,00 $ | 1m | |
| 1085g | 24 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | 3.2mm / 5.0mm super light carbon spokes | Carbon Speed in-house 16/18H straight-pull | 1 1 1 | 930,00 $ | 1m | |
| 1020g | 26 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | 3.2mm / 5.0mm super light carbon spokes | Carbon Speed in-house 16/18H straight-pull | 3 1 1 | 940,00 $ | 1m | |
 | 1245g | 24 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | Sapim CX-Ray | Carbon Speed R280 straight-pull | 760,00 $ | 1m | ||
 | 1035g | 26 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | 3.2mm super light carbon spokes | Carbon Speed 606 / HS606 ultralite straight-pull | 1 1 | 1 140,00 $ | 1m | |
 | 1275g | 21.4 mm | Disc (Center Lock) | Shimano HG, SRAM XDR, SRAM XD, Shimano MicroSpline | Carbon Speed in-house 54T ratchet hubs | 669,00 $ | 29d | |||
 | 1239g | 26 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | Carbon Speed in-house 20/20H straight-pull, titanium colour | 820,00 $ | 24d | |||
 | 1385g | 28 mm | Disc (Center Lock) | Shimano HG, SRAM XDR, Shimano MicroSpline | Sapim CX-Ray | DT Swiss 180 or Carbon Speed R280 straight-pull | 1 380,00 $ | 29d | ||
 | 1310g | 26 mm | Disc (Center Lock) | Shimano HG, SRAM XDR | Sapim CX-Ray | R280 | 1 | 580,00 $ | 1m |
Handlebar 4
| Name | Weight | Handlebar Type | Width, Hood-to-Hood | Reach | Drop | Material | Computer Mount | Compatibility | Reviews | Price | Added | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 355g | Integrated Cockpit (one-piece) | 77 mm | 123 mm | Carbon | Integrated, sold separately | Headset spacers: Standard FSA ACR, Addict, Allez Sprint, BMC SLR/TMR, C64/V3RS, C68/V4RS, Factor Ostro 2.0/O2, Madone Gen7/Gen8, Venge, Orca Aero, Pinarello, Propel, Quick Pro ER One, R5/Soloist, Reacto, Scott Foil, Seka Spear, SuperSix EVO3/EVO4, Tarmac SL7/SL8, Tavelo Arow, V5RS, Wilier, XDS AD8/AD9, XDS RS8/RS9 | 1 | $330.00 | 9d | ||
 | Integrated Cockpit (one-piece) | 72 mm | 105 mm | Carbon | Integrated, sold separately | Headset spacers: Standard FSA ACR, Addict, Allez Sprint, BMC SLR/TMR, C64/V3RS, C68/V4RS, Factor Ostro 2.0/O2, Madone Gen7/Gen8, Venge, Orca Aero, Pinarello, Propel, Quick Pro ER One, R5/Soloist, Reacto, Scott Foil, Seka Spear, SuperSix EVO3/EVO4, Tarmac SL7/SL8, Tavelo Arow, V5RS, Wilier, XDS AD8/AD9, XDS RS8/RS9 | $330.00 | 9d | ||||
 | Integrated Cockpit (one-piece) | 72 mm | 105 mm | Carbon | Integrated, sold separately | Stem angle -8°, uplift 25 mm. Standard FSA ACR headset spacer; brand-specific spacers available (e.g. ADDICT, BMC SLR/TMR, Colnago C64/C68/V3RS/V4RS/V5RS, Factor Ostro, Trek Madone Gen7/8, Giant Propel, Merida Reacto, Scott Foil, Specialized Tarmac SL7/SL8/Venge/Allez Sprint/Supersix EVO3/4, Orbea Orca Aero, Pinarello, Quick Pro ER One, Cervelo R5/Soloist, SEKA Spear, Tavelo Arow, Wilier, XDS AD8/AD9/RS8/RS9). Designed for XMCS GRT. | $330.00 | 9d | ||||
 | 346g | Integrated Cockpit (one-piece) | 77 mm | 130 mm | Carbon | Integrated, sold separately | Standard FSA ACR, ADDICT, Allez Sprint, BMC SLR, BMC TMR, C64/V3RS/V3, C68/V4RS, Factor Ostro 2.0, Factor Ostro O2, Madone Gen7, Madone Gen8, Venge, Orca Aero, Pinarello, Propel, Quick Pro ER One, R5/Soloist, Reacto, Scott Foil, Seka Spear, SuperSix EVO3, SuperSix EVO4, Tarmac SL7, Tarmac SL8, Tavelo Arow, V5RS, Wilier, XDS AD8/AD9, XDS RS8/RS9 | 1 | 330,00 $ | 8m |
Frame 5
| Name | Weight | Reviews | Price | Added | |
|---|---|---|---|---|---|
 | 1000g | 1 | $525.00 | 8m | |
 | 895g | 2 1 | $1,200.00 | 8m | |
| 1070g | 2 | $1,490.00 | 7m | |
| 930g | 4 2 1 | $1,650.00 | 5m | |
 | 5m |