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
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Amazon.com: Bike Disc Brake Rotor with Bolts, 160/180/203mm Floating Rotor for Mountain Bike(Red-180mm) : Sports & Outdoors
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