• Rotor BB1 BSA Ceramic MTB Bottom Bracket

        • $104.99 104.99
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      68/73mm - 24mm Spindle

Rotor BB1 BSA Ceramic MTB Bottom Bracket

Rotor set out with the goal of creating a bottom bracket unlike anything currently available on the market with a flashy and aesthetically appealing look.

The BB1 is incredibly light and is sure not to go unnoticed, and the smooth unobtrusive lines marry perfectly with any type compatible crankset, be it made of carbon or aluminium.

The BB1 is available in black colour with steel bearings, Enduro Grade5 Ceramic and Enduro Grade3 Ceramic. The steel option offers a light and elegant bottom bracket at a very competitive price while the ceramic bearing options are ideal for those looking to shed every possible gram while at the same time acquiring an incredibly smooth bottom bracket. Both versions are available for road (BSA only) as well as MTB use. The ceramic versions come in at an incredible 91g for the road model, and 95g for the MTB, while the steels comes in at 97g for road and 101g for MTB; still quite impressive.



  • Steel: 96g, Ceramic 91g.
  • Black anodized and lasered design.
  • Lathe and CNC T6 heat treated 7075 Aluminium.
  • Labyrinth seals prevent bearing contamination.
  • For all ROTOR and Shimano compatible 24mm cranks.

Buy Rotor Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUnited States of America
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
  • Pay by Bank Transfer, PayPal or Card


  • Colour: Black
  • Size: 68/73mm - 24mm Spindle

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Bottom Brackets Buying Guide

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