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Automotive dictionary (encyklopedia)

Dictionary of terms and abbreviations for cars (automobiles), motorcycles (bikes),
bicycles, boats, engines, machines, machining and car fixing.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Bottom bracket

Bicycle component that is inserted into the bottom bracket shell. The bottom bracket consists of the crank axle (bottom bracket spindle), ball bearings, and (in older style bottom brackets) a fixed cup and an adjustable cup. Crankarms are bolted to the bottom bracket.
See also adjustable bottom bracket, sealed bottom bracket, splined bottom bracket, square tapered bottom bracket
 
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