C-Bear Ceramic Bearings OCM Aluminium Pulley Wheels for Shimano/SRAM 10/11-speed

Some call this OverSize, C-Bear simply calls it Original Cage Max, C-Bear ceramic OCM. C-Bear Ceramic aluminium pulley wheels with ceramic bearings for Shimano 10/11-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. Suitable for the following rear derailleurs: Dura Ace R9100, R9150 Di2 Ultegra R8000, R8050 Di2 GRX XTR M9000 XT M8000 SLX M7000 105 R7000 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: 2 pulley wheels Material: Aluminium ||| Ceramic