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Rotor PF41 Steel Bottom Bracket | Chain Reaction Cycles


Rotor PF41 Steel Bottom Bracket

Rotor's Press Fit bottom bracket bearings are compatible with all BB90 Press-Fit system frames that are manufactured to Shimano specifications. The new, advanced non-contact Labyrinth seals yield a buttery-smooth spin with unparalleled protection against dust, water and mud.

Ultra rigid plastic caps give high compression and deformation resistance, facilitating crisp shifting. Available with steel or ceramic bearings. Constructed of CNC machined 7075 aluminium.

Compatible with BB86, BB89 & BB92 Press fit (41mm) system frames. BB86 for road bikes and BB89 & BB92 for MTB standards.


  • Steel 61g
  • Lathed, heat treated Alloy cups
  • Labyrinth seals prevent bearing contamination
  • 30mm Spindle for all Rotor and 30mm axle cranks
  • 24mm Spindle for all Rotor and Shimano compatible 24mm cranks

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



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