PF30 bottom bracket with outboard bearings for use with M30 28/30mm spindle Praxis - comptiable cranksets. The two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Serviceable, double lip sealed Enduro bearings USA machined aluminium shell for superior function and durability Threaded design for easy installation and removal Features: Bearings: Enduro ABEC-3 Bottom Bracket/Frame Interface: PF30, Specialized Carbon OSBB* Bottom Bracket Shell Width (mm):: 61mm* to 83mm Bottom Bracket Shell I.D: 46mm Crank Spindle Diameter:: 28/300mm Tool Pattern: : 48.5mm x 16 notch Over Bearing Width: 89mm in 68mm wide shell Weight: 151g
