Hey everyone! I need some help with a problem I've come up with. I just purchased 76 Schwinn Varsity Bicentennial, (I know, not the greatest but I like it!) Anyway, everything on the bike is in pretty good condition. Except for the crankset.. It's bent. It looks like someone took a tumble and the crank took the damage. So while looking for a new crank, I'm faced with a dilemma. Find a used Schwinn crankset on ebay, with no guarantee that it won't be bent also. Or buy a conversion kit, bb, and crank. I would think that I might as well buy the conversion parts, and call it a day. Since most of the prices I see for the Scwhinn cranks are pretty expensive. The problem I have is, I have no idea what size of bb to get. The crank I'm looking at is this one http://www.amazon.com/gp/product/B00...A2TE9IQP68MWQU I know I need a 68mm, but I don't know how long I need to have it. (I'm very new to this, if you can't tell! Haha!) Of course, I don't want to throw a bunch of money at this bike. I just want something fun to ride around town with. Any help and advice is appreciated! Thanks!!!!!