The OSPW X for all SRAM Eagle AXS derailleurs features a narrow wide tooth profile to ensure durable chain retention. The 14 tooth upper and 18 tooth lower pulleys reduces chain drag while the custom designed carbon fiber pulley cage ensures both durability and light weight. The SRAM Eagle specific OSPW System is developed and designed in Denmark and comes with a 4 year warranty (standard) and a lifetime warranty (coated and SLT). In the box:-A complete OSPW X System for SRAM Eagle AXS-CeramicSpeed Bearing Oil in a 15 ml. dropper bottle