CeramicSpeed BB90 Trek SRAM GXP Bottom Bracket Bearings for BB90 Trek frames and SRAM GXP 24/22.2 mm cranks. The kit works for both road and MTB frames with a 37 mm inner shell diameter.
Thanks to the unique mix between low friction and 3-5 longer lifetime compared to other steel or ceramic bearings usually used in the cycling industry, this CeramicSpeed Bottom Bracket delivers unmatched performance abilities. The bottom bracket fitted with coated bearings ensure even longer lifetime and further reduced friction.
The bearings of this bottom bracket press directly into the frame. Inside the shell bore they stop at an integrated raised step.