Originally Posted by
KonAaron Snake
I'm still a little unclear on exactly what a 650b is...I know it;s smaller and fatter...and the French likes them for bombed out post ww2 roads. What I'm not clear on is if they fit frames designed for 26', 700c, 27' or any number of those.
From smallest circumference to largest: 26 (MTB), 650B, 700C, 27". Lots of people do 650B conversions using 700c or 27" frames. In short, 650B wheels shouldn't be attempted in a frame designed for 26" (MTB) wheels. Lots of cool examples are out there for 700c/27" frames that now feature 650Bs. Some of Nlerner's posts come to mind.