Cycling ceramic OSPW Race 4-Spoke Shimano Ultegra/Dura ace jockey wheel system

Unlock the complete capabilities of your Shimano Ultegra or Dura-Ace drivetrain using the CyclingCeramic OSPW system. This competition-grade enhancement features a light carboluminum cage, oversized 14/19T aluminum pulleys, and handcrafted ceramic bearings. Verified by Frictions Facts, it exhibits remarkably low friction at only 0.033w, resulting in smoother gear changes, discernible energy conservation, and improved efficiency. Enhance your performance during ascents and sprints with one of the market´s most rapid pulley systems, suitable for 11 and 12-speed groupsets