CeramicSpeed -
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 a 15-tooth upper and 19-tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls to provide absolute optimization of the rear derailleur Robust cage crafted from carbon reinforced polyamide for durability and light weight Two spring tension settings allow customized setup based on ride conditions Fits cassettes from 10 to 36-tooth Coated bearing races increase bearing service life by increasing hardness of race and reducing corrosion Only compatible with SRAM RED AXS and SRAM Force AXS Not compatible with SRAM Rival AXS CeramicSpeed products with coated bearings include a lifetime warranty CeramicSpeed Oversized Pulley Wheel System for SRAM Red/Force AXS - Coated Races, Alloy Pulley, Carbon Cage, Black keyword search: OSPWS Largest Cog: 36 Fits Brand: SRAM Fits Model: RED AXS , Force AXS Drivetrain Speeds: 12 Defined Color: Black