ROTOR Bike Components - ROTOR TECHNOLOGIES: What's OCP MOUNT? ROTOR's exclusive patented technology “OCP Mount” refers to the pedalling's biomechanical optimization when you are using Q rings or other oval chainrings; this
ROTOR Bike Components
MTB Bike Floating Disc Rotor 160mm 180mm 203mm Brake Rotor + 6 Bolts fit Shimano | eBay