Originally Posted by pierce
We sure didn't have any 650B stuff up on Mt Tamalpais in the early 1970s. All we had 26" fat tire, (hey, it was that or road bikes, with 27", or tubulars).
I had a couple 26" old gaspipe steel cruisers, some folks converted these with 5-speeds, but more frequently they were 1-speed with coaster brakes. Pretty soon loons like Ritchey were making their own 26" monsters, lighter, stronger, with gears and actual brakes. I never could afford anything like that.
I think it was Ritchey (or Fisher) who said in that movie (or an interview) about him that the some of first "mountain bikes" they made were 650B's. They quickly moved over to 26" because of availability.... Pretty sure there was an original Ritchey 650B at NAHBS this year.