Thread: Bottom bracket info
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Old 03-20-16 | 07:25 AM
  #4  
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JohnDThompson
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From: Appleton WI

Bikes: Several, mostly not name brands.

Originally Posted by JBHoren
How do i check which type of thread my frame has? I'm a "trial-and-error" guy, which often doesn't work out as well as I hope it will. Asking here is probably a better strategy.

How do i choose the correct bottom bracket? According to the Sugino website, their Sugino RD2 Messenger crankset requires a 103mm square-taper (JIS) bottom bracket.

The bottom bracket matches the crankset, not the bike's frame.
One caveat: Bianchi had frames built in both Italy and Japan. If the OP's frame is an Italian-made frame, it will likely need an Italian thread bottom bracket. If it's a Japanese built frame, it will use an English thread bottom bracket.
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