CeramicSpeed Coated BB90 Ceramic Bottom Bracket BB37-90-GXP

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 SRAM GXP cranks with an axle diameter of 22/24mm.

Coated bearings come with an extremely thin (2-3 microns) protective layer, which is 75% harder than hardened steel. This is applied to the entire raceway, and makes the bearing even more resistant to contamination, as well as further reducing friction.