These Ceramic Bearings Fit Bontrager X, XXX, Aeoleus
- Replace stock wheel/hub bearings with Enduro Ceramic cartridge bearings
- Grade 3 Silicon Nitride ceramic balls, graphite/nylon retainers, filled with Kyodo Yushi grease for ceramic bearings
- Ceramic bearings provide superior smoothness, reduced weight and extended bearing life
- Complete front/rear wheel or hub bearing replacement kit
- Includes bearing puller tool