Originally Posted by
tobashiya
I just grabbed a '68 Schwinn Varsity. My LBS was not very helpful on upgrading to 3 piece, so I bought the parts needed to rebuild the 1 piece. The original crank arm is stamped 28/77, but what size bottom bracket should I buy to convert myself?? Thanks
I bought one of those Travitiv Ashtabula-to-3-piece bottom bracket converters for my Schwinn Super Sport. The threading on the unit is English, so bottom bracket cups that are English-threaded will work. As far as axle length, that'll depend on the crankset you're using.
Neal