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.
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