Colnago CeramicSpeed Bottom BracketDesigned for both road and mountain bike use, this bottom bracket gives you incredible stiffness and durability whatever your riding discipline. It features a hard-wearing aluminium construction, which makes it more than capable of handling all the intensity from road-racing as well as shredding the mountain bike trails. Coming complete with CeramicSpeed bearings installed, this bottom bracket delivers a low friction interface for excellent performance on your road bike or MTB adventures. Features: Material: Aluminium Use: Road, MTB Bearing: CeramicSpeed Weight: 84g (approx)Manufacturer Part Numbers: Black SRAM AXS DUB: 1BBR.CSP.0PF.00X.19 Black 30mm: 1BBR.CSP.0PF.030.18 Black Campag UT: 1BBR.CSP.0PF.00C.18 Black SRAM GXP: 1BBR.CSP.0PF.00R.18 Black Shimano 24mm: 1BBR.CSP.0PF.00S.18Buy Colnago Components from Chain Reaction Cycles, the World's Largest Online Bike Store.