The Kogel PF30 Bottom Bracket keeps you riding smooth and comfortable. It moves bearings out of the frame to create a wider and stiffer setup. This also greatly reduces bearing wear. Featuring ceramic bearings, this bottom bracket is made to run like new for years on end while enhancing your power transfer. This version is designed to accommodate any crankset with a SRAM DUB Spindle. These road seals are designed for low weight and efficiency on road rides. Kogel knows that every pedal stroke is important, and hand makes their bottom brackets to maximize your efficiency.