Road bike tire valve stem guard-CeramicSpeed Oversized Ceramic Pulley Wheel System Coated Cerakote - Shimano 9250/8150

The CeramicSpeed Oversized Pulley Wheel System is an excellent way to get the smoothest and most reliable performance out of your derailleur. It reduces friction and optimizes the efficiency of your groupset. The Cerakote limited edition model utilizes a matte surface finish, making it incredibly durable for road or all-terrain riding. This version is made to accommodate Shimano Dura-Ace and Ultegra Di2 12-speed groupsets. It includes handmade ceramic bearings as well as ceramic coated pulley wheels. This version includes coated bearings which makes them 75 percent harder than steel, leading to the most efficient operation possible. These colored OSPW systems are limited, so get your hands on one and bring out the best possible performance in your Shimano system.