Mill-balanced for proper rotor function. R1 Concepts® WFWH1-21033 Rear Brake Disc and Pad Kit Non-Directional Finish - Each rotor is prepared with a non-directional finish to promote a faster and more even disc brake pad bed-in, along with quieter and smoother stops for longer lasting, consistent braking performance. Quality validated for proper metallurgy and correct brake plate thickness Ceramic Brake Pads And Rotors Kit R1 Concepts Rear Brakes And Rotors | Rear Brake Pads | Brake WFWH1-67033 Brake Kit Dependable Quality: Manufactured with multiple alloys for improved heat dissipation and performance. R1 Concepts® WFWH1-21033 Rear Brake Disc and Pad Kit, Plain Surface, 305 mm, Ceramic, R1 eLINE Silver Rotors with Ceramic Pads Series. Manufacturer #WFWH1-21033 Top choice for front and rear brake pads replacement. Low Dust & Noise: Brake pads come with shims to eliminate noise.