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Para contribuir a este wiki, por favor escribe a bikebikeeverywhere@gmail.com si deseas que creemos una cuenta para ti. La página Contribute to this Wiki explica en detalle cómo hacer contribuciones y qué información debe incluirse.
Bottom bracket
Bottom Brackets are what your crank arms attach to spin.
Types
Also known as a Sealed Bottom Bracket.
These have a lock ring and have either a threaded or cotter pin axle.
Commonly found on inexpensive BMX bikes.