Enjoy effortless pedaling, enhanced shifting precision, and prolonged lifespan with NEW Kogel ceramic derailleur pulleys tailored for the latest SRAM Eagle Transmission. Express your style with various color options, as blending in is dull! Our pulleys feature aluminum cogs and serviceable bearings that withstand tough mountain bike conditions. The 14T upper and 18T lower pulley wheels optimize tooth count to minimize friction. Compatible with: SRAM XX SL Eagle, XX, X0, and GX Eagle transmissions. Installation is straightforward: mount on the stock cage, adjust chain slack, tighten the bolt, and fine-tune using the shifter's micro adjust settings.