CeramicSpeed PF4130 Road and MTB Bottom Bracket Standard Bearing Wheel Size_700c Structured inserts maintain shape even

Structured inserts maintain shape even at full capacity

A wrap-around amber LED illuminated side marker puts out bright ambient light for great added side visibility to traffic and pedestrians

more enjoyable ride

Because of this process

ROTOR's lightest crankset ever

CeramicSpeed PF4130 Road and MTB Bottom Bracket Standard Bearing Wheel Size_700c Structured inserts maintain shape evenThe PF4130 bottom bracket is Press Fit into 41mm diameter shells that are 86. 5mm wide and mate most cranks with a 30mm spindle to that standard. If you have a BB86 frame and want to install a 386EVO crank or Rotor 30mm crank, this is the kit you need. CeramicSpeed bearings are installed in cups. The Standard Bearing has ceramic CS balls and hardened steel races. The Coated Bearing has the same balls running on hardened steel races with a 3 micron