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|Bolts||Cotters||Cups only||One Piece/
|Square Taper Bottom Bracket Sets:
Shimano | French | Track
This style fits almost all frames not made in France or Italy. Spindle taper is J.I.S.
Phil Wood Bottom Brackets
French Thread bottom bracket parts are on our French Cranks page
Grade 25 1/4" Balls bag of 25Virtually all traditional bottom brackets use 11 1/4" balls on each side. These are the highest quality, grade 25. Many shops use the cheaper grade 100 or even grade 300, but we feel that at this price anybody can afford the best.
Using indivual loose balls is gives better results than balls in retainers, so we don't carry retainers for this application. The primary advantage of using retainers is slightly faster assembly at the factory, and also the opportunity to use fewer balls.
The 1/4" size also fits most rear hubs, 9 per side, so you might want to stock up.
See also our Bearings Page
Don't forget to use plenty of grease!
M8 Capless Steel Crank Bolts
These fit all traditional square tapered bottom brackets.
Use a long-handled 8 MM Allen wrench.
See also my article on servicing cottered cranks.
9.5 mm (3/8") Crank Cotters
This size fits Raleighs and other English bikes, also fits most Asian made cottered cranks.
(You will probably need to file the flat down some to fit your cranks)
9.0 mm (French Size) Crank Cotters
This size fits most French bikes.
For Parts for American-style frames that use one-piece cranks, click here!
This site also features many
useful articles by Sheldon Brown
Articles by Sheldon Brown and others Harris
Beginners Brakes Commuting
Frames Gears &
Tandems Touring What's
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