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Chinese Carbon Road Bikes => Cyclocross Frames, Wheels & Components => Topic started by: trailgazer on May 11, 2026, 08:21:29 AM

Title: Xiamen Carbon Speed D40CU-33, tire width
Post by: trailgazer on May 11, 2026, 08:21:29 AM

I have the above rim/wheelset together with a Carbonda 505SL frame. The tire clearance of the frameset is max 42 mm.

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I'm looking for new gravel tires. Currently I'm running Specialized G-ONE RS Pro in 35 mm. With an upcoming gravel event combined with a bikepacking trip around the South of Norway, I'm looking for more comfort by going for a fatter version preferably the R Pro. 40mm wide would be no problem for the frame I guess. But would a 45mmm fit? How wide actually is it on that rim?

Do you have the above XMCarbonSpeed D30CU wheelset and one of the tires mentioned above (being RS/R or RX), would you mind by measuring the actual width of the tire on that rim? You would really help me decide. Thank you!

Title: Re: Xiamen Carbon Speed D40CU-33 tire width
Post by: bremerradkurier on May 11, 2026, 11:51:47 AM

On my XMCS wheelset with 26mm IW, my Hutchinson Caracals in 700x40 are 44mm at their widest and 39.5mm in height.