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Amazon.com : Avid/ SRAM 20mm Post Mount Disc Brake Adaptor, Fits 180mm Front and 160mm Rear Rotors : Bike Brake Mounts And Adapters : Sports & Outdoors
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SRAM & Avid Disc Brake Adapters (Black) (+20mm) (IS Mount) (180mm Front, 160mm Rear) - Performance Bicycle
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SRAM & Avid Disc Brake Adapters (Black) (+20mm) (Post Mount) (180mm Front, 160mm Rear) - Performance Bicycle
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