Originally Posted by
omgar
Has anyone here tried putting 650b wheels on their Sirrus X Comp?
I haven't, and probably wouldn't, but I don't think there's any technical reason one couldn't.
I think the only restriction might be to stay away from anything in 650b much below a 40mm tire, as that might drop the b/b down a little too low. If I wanted to run really wide tires (anything over 40mm) on the bike -- either road slicks or gravel tires -- I probably would go with 650b. This is pretty common practice now in the 'gravel' world.
But I don't; already binned the stock 38s for 32mm road slicks.