JRA...
Join Date: Oct 2003
Location: philly
Posts: 839
Bikes: trek 520 & 736, DeRosa Professional, Fuji Professional, Raleigh International 3-speed, Saronni (any info people?), Humber 3-speed, Raleigh Sports, Carlton Grand Prix coming soon!
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there's two one-piece crank standards, schwinn and some mongoose (28 tpi) and everything else (24 tpi). trial and error should tell you which cones will work. retainers for 28 tpi BBs have 9 balls, 24 tpi have 10.