Compatible with most stock and aftermarket 4- and 6-piston calipers Utilize late-model OEM seals for great performance and quick serviceability Contain nylon bearings and spring loading for smooth, no-rattle operation and long-term performance Include a recessed cover with a flex-type seal for leak-proof operation Fit up to 1-1/2" diameter bars Work with standard throttle and hand grip components Brake assemblies and clutch assemblies sold separately Made in the U.S.A.. M/C ASSY BRAKE 9/16" BLK