C-Bear Ceramic Bearings Pulleys - 12-speed SRAM XX1, X01GX Eagle

C-Bear Ceramic aluminium pulley wheels with ceramic bearings compatible with SRAM XX1, X01 and GX Eagle 12-speed rear derailleur. The pulley wheels are the fastest spinning bearings on your bike. An upgrade to ceramic bearing therefore is the most effective upgrade. C-Bear Ceramic Bearings is a Belgian bearing specialist for ceramic ball bearings with excellent running properties and durability. All bottom brackets work without additional spacers and washers. Included in delivery: 1 pair Material: Bearings: ceramic hybrid bearings