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 ingress SPECS & COLOURS BUILT FOR: XC/AM/FR/DH WEIGHT: 69g COLOURS: Black COMPATIBILITY: Shimano pressfit BB92 shells