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Bottom bracket

From Bike Collectives Wiki
Revision as of 06:42, 16 October 2007 by Scott@sopobikes (talk | contribs) (+image)
File:Bottom bracket exploded.jpg
Diagram of a cup & cone bottom bracket

Bottom Brackets are what your crank arms attach to spin.

Types

Cartridge or Sealed

Identified off the bike by the roughly 1" tubing around the axle.

Cup & Cone/ Unsealed

These have a lock ring and have either a threaded or cotter pin axle.

One Piece

Commonly found on inexpensive BMX bikes.

References

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