Join Date: Dec 2009
Location: tip o' the mitt, MI, USA
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Need advice on Schwinn S-25 BB.
I'm thinking of going with a cartridge BB on my S-25 winter bike. When I last did maintenance on the BB, I measured the square taper spindle at 125mm (68mm shell width). My problem is that the closest matches I see on replacements are nominal dimensions of either 68 x 122 or 68 x 127. It's a SunTour crankset. Any advice on what to try?