Trek BB90 press fit kit.
Replace your Trek press fit BB90 bearings with these super slick CeramicSpeed ones. Suitible for all Trek frames with the BB90 standard only. Can be used with any standard Shimano/FSA/Rotor or any other brand crankset with 24mm axle.
Super smooth CeramicSpeed Grade 3 Silicon Nitride balls are kept in place by a reinforced polyamide cage. Balls and cages are matched (within microns) with the finest hardened steel raceways with an ultra smooth polished groove. To this we add the optimized low viscosity CeramicSpeed "Blue grease" for low friction and increased bearing life. To keep dirt and water out we finish off the bearing with non-contact seals.
Every single bearing is hand build in Denmark under white room conditions. We spin each bearing by hand four times during the building process to ensure that all parts are matched perfect.
CeramicSpeed bearings can be used for any cycling discipline: Road, TT, Tri, Track, Cross and MTB.
The benefits are super low friction, better power transfer and increased bearing life.