Kit includes Viton® seals and pads, Have a 1" bore and are intended for 1/8" rotors, These front calipers come with pads and improved Viton® seals that can withstand an additional 100°F compared to the previous material, Features an aluminum construction with a black anodized finish, They work best with 1/8" rotors, designed for open wheel, drag race, karting and motorcycle applications.