Step up to a new and transformed riding experience. Stiffness, low friction and unmatched lifetime are encompassed within the excellent reliability delivered by CeramicSpeed Bottom Brackets. All CeramicSpeed Bearings are paired with high quality CeramicSpeed. This ensures you the fastest riding and most saved energy.
BB90 bearing kit with ceramic bearings for Trek frames with an bottom bracket shell diameter of 37mm and cranks with an axle diameter of 24mm.
Material: bearings: stainless steel with ceramic balls
Weight supplement: manufacturer information