Left Hand Front RT3 Series Radial 4 Piston Caliper - Black. Can be used as Right Hand Rear Caliper - Kraus Moto Engine Hot Up Kits - Vintage Purchase S&S 3-7/8″ piston kit

Purchase S&S 3-7/8″ piston kit # SS92-1210 & bore your current cylinders

* Standard Spring Rate

* Use with AP-240030

Panheads 1948-1964 and Shovelheads 1970-1983

Left Hand Front RT3 Series Radial 4 Piston Caliper - Black. Can be used as Right Hand Rear Caliper - Kraus Moto Engine Hot Up Kits - Vintage Purchase S&S 3-7/8″ piston kitPrecision engineered to bring race proven braking performance to V Twins, the Kraus RT3 Brake Calipers deliver superior stopping power, control, and feel whether youre carving through the canyons, pushing limits on the track, or dealing with the unexpected on city streets. * Better Lever Feel for Strong, Consistent Braking * Road Legal Race Caliper featuring a three bolt design that maximizes stability under load * CNC Machined Billet Aluminum *