Rear Brake Caliper Fit For SSR Apollo Orion SDG For Pit Dirt Bike Engine Brake System Replacement Parts vehicle Fit For SSR Apollo Orion SDG For pit dirt bike rear brake bracket, mounting hole spacing rotor clearance range Core safe material, solid cast caliper body; built in sliding piston frame; stable brake pad holder, bears continuous hydraulic braking pressure Smooth control stable feedback, balanced piston push structure, delivers consistent linear stopping response on muddy rocky offroad trails Simple installation easy , unified pre-cut bracket layout, quick for brake pad replacement piston Reliable craft standard dimension, uniform caliper shell wall thickness; accurate piston travel clearance, fits rear brake assembly outline