Rotor PF4129 BB DUB® bottom bracket

Upgrade your bike with the ROTOR PF4129 DUB® Bottom Bracket. This PressFit solution seamlessly integrates SRAM DUB cranksets (28.99mm axle) into BB86, BB89, and BB92 frames. Featuring durable Enduro Bearings with robust LLB seals, it ensures smooth, reliable performance and exceptional resistance to dirt and water across Road, Triathlon, Gravel, Cyclocross, and MTB disciplines. Experience enhanced stiffness and power transfer with this versatile, low-maintenance upgrade