SRAM Post Bracket 20 P 1 Disc Brake Adaptor - For 160mm 180mm Rotors Only Includes Bracket Titanium Bolts

SRAM Post Bracket 20 P 1 Disc Brake Adaptor - For 160mm and 180mm Rotors Only Includes Bracket and Titanium Bolts. SRAM/Avid Post Mount disc brake caliper mounting adaptors provide alternative mount positioning that allow the caliper to be used with different sized rotors than used on the frame or fork caliper mount.