Chain Reaction Cycles | MTB | Road | TRI | Run
Rotor PF46 EVO386 Steel Bottom Bracket | Chain Reaction Cycles


Rotor PF46 EVO386 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.


  • For use in BB386EVO 46mm systems to convert down to 24mm axle systems.
  • This can be used with Rotor 3D & Agilis cranks, and all shimano 24mm axle systems.
  • Steel (black) 111g.
  • Anodized and lasered Aluminium cups.
  • Lathe & CNC produced anodized AL cups with T6 annealing.
  • High quality silicone external seals and inner seal tube prevent bearing contamination, increasing BB service life

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



Need help? Have a question?

Get in contact with us

Bottom Brackets Buying Guide

We’ve got everything you need to know in our buying guide...

Also Consider