Application: Pulley Diameter: Approx. 59mm. Bikes pulley guide wheel suitable for 7‑12 speed shifting system.
Save Labor: The bikes rear derailleur pulley is cold and high temperature resistant, with high transmission efficiency and more energy saving riding.
Material: Bikes ceramic wheel is made of aluminum and ceramic bearing, impact resistance, not easy to deformation, surface anodizing, corrosion resistance.
Wear Resistant: Bikes derailleur pulley is made of cnc machining, fine processing, the product appearance is exquisite and wear resistant.
Performance: Replacement rear derailleur pulleys, reduce the lateral false position, can make speed changing response time is shortened, the performance is improved.