Not sure of the bottom bracket threading on your old bike? Click Here
This very nicely made bushing set allows you to mount a modern threaded cartridge bottom bracket unit in a frame made for the old-style "Ashtabula" one-piece cranks. This saves weight, improves shifting, and allows the use of modern clipless pedals. Be the first kid on your block to put a Dura-Ace crankset into your Schwinn Varsity! Installation Note:Press in right side (left threaded) bushing first. Then draw in left side bushing by gradually tightening the allen head bolts. The bolts go through the left side and screw into the right side adaptor.
Shimano's newest cartridge bottom bracket is the BB-UN300. Choose axle length. BB width: 68mm English thread JIS Square taper Sealed cartridge bearings
Finally! An affordable bottom bracket cup set for your old French bike! Cups, lock ring and retainer bearings, 35x1mm threads, Dual Right hand thread. Waterproof
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