The Wheels Manufacturing PF30 Outboard Bottom Bracket converts PF30 frames to a thread-together outboard design, eliminating creaking, extending bearing life, and simplifying maintenance. Two machined aluminum cups thread together inside the shell to keep the bottom bracket stable and properly aligned, with fully replaceable Enduro ABEC-5 Angular Contact sealed bearings that handle combined axial and radial loads. Made in the USA.

• Compatible with PF30 frames; fits 61mm to 83mm BB shell widths
• Note: Specialized Carbon OSBB (61mm shell) requires additional cup spacers
• For 30mm spindle cranks
• Spindle must be 103mm or longer in 68mm shells; 108mm or longer in 73mm shells
• Enduro ABEC-5 Angular Contact sealed bearings for combined axial and radial load handling
• Fully replaceable bearings for extended bottom bracket life
• Machined aluminum cups with durable anodized finish
• PressFit thread-together design for creak-, stable installation
• Made in the USA
• Color: Black