By popular demand, Wheels Mfg added this PF30 with outboard bearing BB for use with 30mm spindle cranksets when used in PF30 frames to the line up By popular demand, Wheels Mfg added this PF30 with outboard bearing BB for use with 30mm spindle cranksets when used in PF30 frames to the line up The two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance **Please Note: Spindle length must be 103mm or longer when used in a 68mm wide shell, 108mm or longer when used in a 73mm wide shell.
