BBright is the Cervélo bottom bracket standard, found on most of their frames, except the P5. In order to fit Shimano and FSA cranks into this oversized shell, this bottom bracket, complete with CeramicSpeed Bearings, needs to be pressed in.The BBright bottom bracket comes with either CeramicSpeed Standard or Coated Bearings installed. Super smooth, super round CeramicSpeed Balls contained in hardened-steel races are found on both versions. The Coated version has a metallic coating laid onto the races, making it even smoother and harder, resulting in lower drag and longer life.In The Box:- 1 bottom bracket with bearings installed.- 2 dust covers.- 10ml syringe of All Round Grease.- Sticker sheet.Frame & Axle: Press-fit BBright / 24mmThread: PF w/cupMaterial: AlloyBearings: CS 61805Crank Compatibility: Shimano, FSA, Rotor a.o. 24mm