The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design.Features standard hardened steel bearing racesOnly compatible with SRAM XX1 Eagle AXS and X01 Eagle AXS (electronic)Not designed for use with SRAM Eagle MechanicalFeatures a 14-tooth upper and 18-tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls to provide absolute optimization of the rear derailleurThe narrow wide tooth profile ensures durable chain retentionRobust cage is crafted from carbon reinforced polyamide for durability and light weightThree spring tension settings allow you to customize performance and reduce chain dragFits 10-50 tooth cassette rangeItem SpecificationsDefined ColorBlackDrivetrain Speeds12Fits BrandSRAMFits ModelX01 Eagle AXSFits ModelXX1 Eagle AXSkeyword searchOSPWSLargest Cog50 CeramicSpeed OSPW X System for SRAM Eagle AXS 12-Speed Cage Assembly EAN: 5711050068852