Originally Posted by dunkleosteus

Hm there is a lot of bogus info out there on 650b methinks. I was looking at a source which claimed that 26x2 was comparable to 650x42 which seems wrong now that I look at some charts. Oof. Is there a way to calculate diameter from tire size? Now I think the equivalent to 26x2.125 would be closer to 650x38. It seems that 650x47 would raise the bike 1cm over 2.125. I'll keep pondering it.

ryansu - sweet whip! I like that purple. Any purple bike of mine invariably gets named The Purpetrator and gets up to no good.