PF4624 BB386 Steel

ROTOR PF4624 BB386 Bottom Bracket Steel. You had your choice of any bike in the shop but you made your selection based on careful research with a bit of brand loyalty. The Press Fit 4624 BBright will easily accommodate your particular frame with its wider press fit, 46mm diameter with 24mm axle BB shell.

ROTOR conceived its Universal Bottom Bracket (UBB) concept to eliminate the complicated bottom bracket/crank compatibility challenge that has increasingly frustrated the mechanics at your LBS.