Hope pf41 press fit stainless bottom bracketdesigned and manufactured in the uk, this hope press fit bottom bracket has stainless steel bearings and suits bb92 and bb89 bottom bracket shells. It's compatible with any crank with a 24mm axle, such as shimano hollowtech ii chainsets and sram gxp with separately sold adaptors. It can also easily be serviced with replaceable sealed bearings and external labyrinth seals.features type press fit bearings stainless steel axle compatible 24mm  cup diameter measurements 41mm external, 24mm internal  bearing cups thread into a centre tube to give a very secure, safe fit  easy to service and replaceable parts  specific fitting tool required purchased separatelymanufacturer reference number bbpf41ssn  weight 112g approx buy hope components from chain reaction cycles, the world's largest online bike store.