Performance Machine Rear Radial Caliper Bracket For Harley Touring This radial mount caliper bracket replaces the stock rear caliper mount on 2008-2021 Harley touring applications and is designed to improve your braking feel by providing more rigidity and control. Works with Performance Machine radial mount caliper or any radial mount caliper with 108mm mounting bolt dimension. Features Recommended to be paired with Performance Machine Radial Mount calipers for optimal braking performance Direct bolt on fitment for Performance Machine Radial Mount calipers (sold separately) or most 108mm radial mount calipers CNC machined from billet aluminum Chrome mounting hardware included Designed for use with .200 thick discs Performance Machine laser engraved logo