and the threads are 24 TPI

the S&S Hooligan kits for 2000-2021 Harley-Davidson Sportster models will give you an edge on the competition

Can be used on all Harley-Davidson 1915-64 when oil lines are disconnected to prevent leakage or contamination during storage

Essential installation notes:

Fits 1954-early 1981 KH

Four Piston Brake Caliper - Chrome Motorcycle Specific_Harley-Davidson Twin Cam and the threads are 24Don't skimp on brakes! When it comes to brakes, ensure high quality from a brand you trust. The ability to stop fast is paramount to keeping you and your motorcycle in tip top shape. CNC machined 6061 T6 billet aluminum, designed to eliminate flex The pistons are hard anodized aluminum for superior operation and long life Centerless ground or exacting tolerances Quad seal for smooth action Brake pad springs eliminate rattles and aid in caliper