RaceFace CINCH BB107 Bottom Bracket: 41mm ID x 107mm Shell x 30mm Spindle, Double Row Bearing, External SealRace Face bottom brackets for use with 30mm spindle cranksets in the Race Face CINCH crank family. Allows the use of a CINCH 30mm spindle crankset with Shimano press fit shells Double row bearings offer superior durability Includes inner plastic sleeve and spacer; additional BB fitments can be accommodated with CINCH spacer kits Inner sleeve protects against water Rubber seal located on the bearing's external side helps to reduce the risk of water