Bike Forums - View Single Post - Cottered Cranks

06-26-05 | 01:31 PM

#4

Sheldon Brown

Gone, but not forgotten

Joined: Jul 2002

Posts: 2,301

Likes: 12

From: Newtonville, Massachusetts

Bikes: See: http://sheldonbrown.org/bicycles

Quote:

Originally Posted by Aeroplane

I'm looking at a thrift-store frame for beater bike conversion. It's got a decent enough frame, and isn't looking too bad for $20. But, it has cottered cranks. I've read Sheldon Brown's stuff on cotters, and read on this forum what a pain they are to work with, so here's my question:

Should the cottered cranks fail, will I be able to replace them with normal cotterless cranks? And, if not, will I be able to replace the BB with a new one that does accept cotterless cranks, like a square taper shimano? The frame is Japanese, I believe, so I shouldn't have to worry about French or Italian threading. Is an old frame compatible with modern BB's?

Japanese and other asian bikes use standard ISO/English bottom brackets, any modern BB will fit that frame.

Sheldon "Oldies" Brown

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