Weld-on is the advised method of installation

OEM replacement reference 37089-79

Fits: > 52-64 K

Satin Black finish

Equipped with NRS technology which provides a constant pressure point all through the brake pad lifecycle

S&S 883-1200-kit 1986-21 black Top End Parts Sportster Weld-on is the advised methodWith OEM style black painted cylinders. Installation will require no modifications, just remove stock 883 cylinders and pistons and replace with the S&S 883 1200 big bore conversion kit. Pistons have a dished piston dome and are stock weight. Therefore no re balancing is required and will fit stock 883 heads giving a nice 9. 4: 1 compression ratio. Incl. installation lube, head, base and exhaust gaskets and instructions. Fits: > 86 21 XL883