The Campagnolo FC-RE012 Bearing Kit includes everything you need for complete bearing service on Campagnolo Ultra-Torque cranksets. Eventually bearings and seals reach end of life and require replacement. Simple three step process is all that is required. Removal of used bearings with a bearing press, quick cleaning of all surfaces, then installation new bearings and seals. Full service kit includes 2 bearings and 2 seals.