Race Face BB92 30mm Bottom Bracket The Race Face BB92 30mm Bottom Bracket allow the use of Race Face cranks with CINCH technology to be used on bikes designed with BB92 press fit bottom bracket shells. Features: Custom 19 ball flanged retainer bearings Allow the use of a 30mm spindle with Shimano press fit shells without decreasing ball bearing size Bearings races are fully coated for improved corrosion resistance Bearings are factory filled with Phil wood grease Includes an industry exclusive inner sleeve to protect against water ingest from inside your frame | Race Face | Bb92 30Mm Bottom Bracket Bb92, 30Mm Spindle