The Campagnolo 12-speed EPS OSPW System features a compact, molded carbon fiber cage for lightness and durability. The system offers a three-spring tension setting that allows for optimal configuration based on riding conditions. Like every other CeramicSpeed Oversized Pulley Wheel System, this one is developed, designed, and hand-built in Denmark. The product includes both CeramicSpeed Standard and Coated Pulleys, with a lifetime warranty on the coated version and a 4-year warranty on the standard one. The system is not compatible with the 12-speed mechanical or 12-speed Wireless drivetrain. In the box: Complete OSPW System for Campagnolo 12-speed EPS.