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SRAM/ Avid 20mm Post-Mount Disc Caliper to Post Mount Frame/Fork Adaptor with Stainless Bolts Kits for Regular and CPS Calipers - Two Hoosiers Cyclery, LLC
Disc Brake Rigid Bicycle Forks For Cruisers and Motorized Bicycles
Types of bicycle disc brake mounts, how to recognize them, and how to choose an adapter. | cyclabo