ceramicspeed-oversized-pulley-wheel-system-for-sram-mechanical-10-11-speed-derailleurs-coated-bearings-alloy-pulley-carbon-cage-red
ceramicspeed-oversized-pulley-wheel-system-for-sram-mechanical-10-11-speed-derailleurs-coated-bearings-alloy-pulley-carbon-cage-red, 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 two oversized 17-tooth aluminum pulley wheelsRobust cage crafted from polyamide and carbon fiber for durability and light weight