Hi team,

I have a Canyon Grail Etap XS and I'm looking at swapping out the tyres for road tyres. The wheelset it came with is 650b DT Swiss Gravel LN.

I was wondering the following:

  1. Does anyone have a spec sheet which shows the minimum width I can go with? DT Swiss/Canyon's site have nothing and their online support bot/person is unresponsive.

  2. Is there any specific tubes I should go with? I can't seem to find any smaller width 650b tubes as they're all made for MTBs with a minimum of 1.5" width (38 mm). Would this cause issues if I went with 650bx32 tyres?

Let me know.

Size Chart: https://imgur.com/a/7bc9siJ

by Chadlynx

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