ROTOR Round Ring Outer Chainring BCD110x4 11/12s Bike Lights - Rear The windproof material in the

The windproof material in the foot area molds perfectly to your shoes

so you’ll be able to see clearly any detail and ride

4 x 1mm spacers

Minimizing aerodynamic drag is of utmost importance for performance

ROTOR Round Ring Outer Chainring BCD110x4 11/12s Bike Lights - Rear The windproof material in theROTOR Round Rings BCD110x4 outer chainrings compatible with all ROTOR cranks using BCD 1104 spider or INspider power meter. In addition, these chainrings are also compatible with Shimano Ultegra FC 8100, Ultegra FC 8000, Dura Ace FC 9200 and Dura Ace FC 9100 cranks cranks, offering fast and precise shifting while maintaining a very low weight. Aero chainrings are not compatible with the 12 speed Shimano Powermeter cranks. (R8100p and R9200p)