CeramicSpeed Shimano Standard BB90/95 Kit

Premium ceramic replacement bottom brackets for the Trek family of carbon bikes.<br /> - CeramicSpeed bearings reduce friction and improve performance and durability<br /> - 400% smoother, 128% harder and 58% lighter than a standard steel bearing 400% smoother, 128% harder, and 58% lighter than a standard steel bearing<br /> - Made from Grade 3 Silicon Nitrate - the highest possible grade Made from Grade 3 Silicon Nitrate - the highest possible grade<br /> - Handmade in Denmark and used by numerous pro teams including Trek Factory Racing Handmade in Denmark and used by numerous pro teams including Trek Factory Racing<br /> - Only compatible with 24 mm cranks Only compatible with 24mm cranks<br /> - Not compatible with BB30 cranks Not compatible with BB30 cranks