Brake Pads Fit Ridstar Q20 Features: Motorcycle calipers and brake pads are the core components of the disc brake system, generating braking force through friction with the brake disc. Its functions are divided into the following three aspect First, Deceleration braking: The caliper piston pushes the brake pads to clamp the rotating brake disc, and frictional resistance slows down the wheels. Second, Heat conversion: converting kinetic energy into thermal energy for dissipation, requiring high-temperature resistant materials (such as metal/ceramic composites) to prevent thermal decay. Third, Precise control: Cooperate with the hydraulic system to achieve linear force adjustment, ensuring safe operation. Fitment: For Ridstar Q20 Package Includes: 1 Brake Pads Pair Pads As Pictures Instruction of Installation is NOT Include