Bontrager Aeolus RSL CeramicSpeed Coated Hub Kit

Refresh your Bontrager wheels.<br /> - Premium ceramic replacement bearings for Bontrager Aeolus RSL disc wheels<br /> - Only compatible with Bontrager disc-brake wheels with DT-Swiss internals<br /> - CeramicSpeed bearings reduce friction and improve performance & durability<br /> - 400% smoother, 128% harder, and 58% lighter than a standard steel bearing<br /> - Made from Grade 3 Silicon Nitrate - the highest possible grade<br /> - 75% harder bearing race, further reducing friction and wear<br /> - Handmade in Denmark and used by numerous pro teams including Trek Factory Racing