C-bear ocm shimano dura-ace 12-speed full ceramic derailleur pulleys

Product Description The C-BEAR OCM Full Ceramic derailleur pulleys for the Shimano Dura-Ace R9250 12-speed rear derailleur work with ceramic ball bearings that run in ceramic grooves. They are larger than the original derailleur pulleys. In this way, you significantly increase the performance of your drivetrain. Technical Information:Application:Road, Triathlon & Time TrialTeeth:12 (upper pulley), 13 (lower pulley)Gearing:12-speedMaterial:aluminium, ceramicBearings:CeramicCompatibility:Shimano Dura-Ace R9200 (R9250 Di2)Note from the manufacturer:Approved for road use only. Features:OCM = Original Cage Max, more teeth than the originalceramic bearings made by specialistsaluminium body, ceramic bearing racesManufacturer Number:pull-ocm-shi-da12-fc Contents:1 x C-BEAR OCM Shimano Dura-Ace Full Ceramic Lower Derailleur Pulley1 x C-BEAR OCM Shimano Dura-Ace Full Ceramic Upper Derailleur Pulley Manufacturer: C-BEAR Vrijheidslaan 35 3990 Peer Belgium https://c-bear.com/contact-us/