BB Alpha Bearing Kit

What Our Gearhead® Experts Are Saying:

"I’ve installed BB Alpha kits on high-mileage road and tri builds, and the smoothness is immediately noticeable. The grade-3 silicon nitride balls spin incredibly freely, but what really stands out is the improved sealing—especially in wet conditions. Installation is straightforward thanks to the simplified spacer design, and it’s a solid upgrade for riders chasing efficiency and long-term durability."

When we’re building a bike to go the distance, every watt and every bearing matters. The CeramicSpeed BB Alpha Bearing Kit is engineered to outlast the frame around it, pairing ultra-low friction performance with advanced protection against the elements. Whether we’re racing road, lining up for a triathlon, or chasing speed on the track, this bottom bracket keeps our drivetrain spinning at its best.

Hand-built with hardened stainless-steel races and grade-3 silicon nitride ceramic balls, the BB Alpha reduces friction while dramatically improving moisture resistance—up to 500% better protection. Custom-engineered seals and precision dust covers shield the bearings from contaminants without sacrificing speed. A simplified spacer tube system and lighter cups reduce weight by 10% compared to previous generations and streamline installation. Available in configurations for Campagnolo Ultra Torque, Campagnolo ProTech, and BB90 Shimano Road standards, this kit ensures precise pairing with your crankset for peak drivetrain efficiency.