Looking to upgrade your cranks to the Cinch 30 system by RaceFace? Make sure not to forget the bottom bracket to go with it! RaceFace cranks are a shop favorite, from the incredibly light and stiff Next SL's to the durable and affordable Aeffects. You wont be dissapointed!Standard 6806 retainer bearingsBearings are factory filled with Phil Wood greaseCups are machined for a high tolerance frame fitIncludes an industry exclusive inner sleeve to protect against waterRaceFace BSA30 cups are installed with a RF BSA30 cup tool or with BSA30 standard tools from Rotor, ZIpp, and EnduroPLEASE NOTE: when using Turbine cranks, remove the plastic sleeve as the spindle is slightly wider and may cause unwanted tension.Item SpecificationsWeight87gBB/Frame InterfaceEnglishSpindle Interface TypeRaceFace Cinch 30mmBB Shell Width68/73mmDefined ColorBlack RaceFace CINCH Bottom Bracket Bottom Brackets UPC: 821973349497