6806-2RS-HC BB30 hybrid ceramic bottom bracket. BB30, PF30 AND BB386EVO
Hybrid ceramic bearings are the most common type of ceramic bearing, constructed of stainless steel inner and outer races with ceramic Si3N4 balls in place of steel ones.
Hybrid ceramic bearings have various advantages over all steel bearings, such as higher speed and acceleration capability, increased stiffness, higher accuracy, lower friction and low heat generation, low thermal expansion and extended operating life.
Dimensions – 30 x 42 x 7