The hope standard bb30 stainless bottom bracket is the ideal unit for using with shimano race face fsa and others the custom swiss made bearings on this hope bottom bracket are double sealed fully serviceable and removable which give much greater life span than stock units the bearings are made by ina and have been designed to run directly on the crankset axle without the use of shims or spacers again increasing life and reliability hope standard stainless bottom bracket features