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Bottom bracket: Difference between revisions
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Revision as of 05:05, 17 October 2007
File:Bottom bracket exploded.jpg
Diagram of a cup & cone bottom bracket
Bottom Brackets are what your crank arms attach to spin.
Types
Identified off the bike by the roughly 1" tubing around the axle.
These have a lock ring and have either a threaded or cotter pin axle.
Commonly found on inexpensive BMX bikes.