bottom bracket

English

modern bottom bracket with ceramic bearings

disassembled bottom bracket

Pronunciation

• Audio (US):

  (file)

Noun

bottom bracket (plural bottom brackets)

1. (cycling) A bicycle part that connects the crankset (chainset) to the frame and allows the crankset to rotate freely.

   Holonyms: spindle, bearing

   • 2009, Dennis Bailey, Keith Gates, Bike Repair and Maintenance For Dummies, John Wiley & Sons, →ISBN:

     Crucial to the crankset is the bottom bracket. Of all the bearings on a bike, the bottom bracket is the one that has to bear the heaviest load. Not only does the bottom bracket have to spin while you pedal, but it takes the force of all the twisting and turning that occurs during pedaling.

Translations

Translations

• Catalan: eix pedalier m
• Czech: please add this translation if you can
• Danish: please add this translation if you can
• Dutch: trapas (nl) c
• Esperanto: please add this translation if you can
• Finnish: keskiö (fi)
• French: axe de pédalier m
• German: Tretlager (de) n, Innenlager n (specifically the inner part)
• Italian: movimento centrale m
• Polish: wkład suportu m
• Portuguese: movimento central m
• Russian: велосипе́дная каре́тка f (velosipédnaja karétka)
• Slovak: stredové zloženie n
• Spanish: eje pedalier m
• Swedish: please add this translation if you can

Further reading

• bottom bracket on Wikipedia.Wikipedia