CeramicSpeed Bottom Bracket Alpha Bearing Kit for BB90 Shimano Road | 115517 Pegoretti Elio Every detail has been honed

Every detail has been honed under race conditions

fully matching Shimano Road cranksets and alternative 24mm axle configurations

this 34-tooth chainring features a 145 mm bolt circle diameter (BCD) and a robust 4-arm design for secure mounting on Chorus cranksets

Some joints are left visible

CeramicSpeed Bottom Bracket Alpha Bearing Kit for BB90 Shimano Road | 115517 Pegoretti Elio Every detail has been honedCeramicSpeed BB ALPHA Bearing Kit for BB90 Shimano Road: Advanced Mechanical Renewal and Minimum Drag The engineered CeramicSpeed BB ALPHA Bearing Kit for BB90 Shimano Road stands as the definitive mechanical upgrade for the maintenance and optimization of premium Road Bikes utilizing the BB90 integrated press fit bottom bracket standard (exclusively found on Trek frames). Developed to sit directly into the carbon molded shell of the frame without the