Ceramicspeed Bb90 Trek Shimano Bottom Bracket Cups

CyclingCeramic bottom brackets are combined with low friction ceramic bearings and are more durable than standard bearings.The high quality of the bottom support housings allows them to achieve high performance.They have been designed to offer a lightweight package and, thanks to the Seal design, allow maximum protection.The extreme hardness of CyclingCeramic balls results in a bearing life of 4 to 5 times longer compared to standard bearings, the special grease keeps the bearings sealed and protects them from external elements that can prevent proper operation.