BB Alpha Bearing Kit

What Our Gearhead® Experts Are Saying:

"I recommend BB Alpha for performance builds where efficiency and longevity matter. The ceramic bearings spin exceptionally smoothly, and the upgraded sealing system makes it more resilient in wet or high-mileage conditions. It’s a precise fit for Campagnolo and BB90 Shimano standards, making it an easy premium upgrade for serious road and tri riders."

The CeramicSpeed BB Alpha Bearing Kit represents the next evolution in high-performance bottom bracket technology. Designed for road, triathlon, and track disciplines, it combines hardened stainless-steel bearing races with hand-assembled grade-3 silicon nitride ceramic balls to minimize rolling resistance while maximizing longevity. The result is a drivetrain interface engineered for sustained efficiency under competitive loads.

A key advancement lies in its custom-engineered sealing system and precision dust covers, delivering up to 500% greater moisture protection compared to previous generations. This enhanced barrier defends against water ingress and contamination without increasing drag, preserving the ultra-low friction performance expected from CeramicSpeed components. The redesigned spacer tube and lighter cup construction reduce system weight by 10% and simplify installation procedures.

Offered in configurations for Campagnolo Ultra Torque, Campagnolo ProTech, and BB90 Shimano Road standards, the BB Alpha ensures precise crank compatibility—25mm for Campagnolo platforms and 24mm for Shimano BB90 systems. Each kit includes UFO TECH All Round Bearing Grease to optimize performance from the first installation. For riders demanding maximum efficiency, durability, and environmental resistance, BB Alpha delivers a refined balance of speed and protection.