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. Are you unsure, check out our Bottom Bracket Compatibility Matrix to find the right bottom bracket for your bike.