James, cylinder head gasket set 4" bore. .020" RCM - 84-17 Evo & Twin Cam style engines 4" bore OEM, S&S & TP engineering engines (excl. Twin Cooled) (NU) 532471 Necessary modifications must be made

Necessary modifications must be made

allowing you to run an electronic speedometer on a bike with a transmission driven speedo

comfortable pegs can be installed in minutes

Note: See 565133 for S&S crankpin plugs for S&S 1

Available with a 12V H4 P43T bulb

James, cylinder head gasket set 4" bore. .020" RCM - 84-17 Evo & Twin Cam style engines 4" bore OEM, S&S & TP engineering engines (excl. Twin Cooled) (NU) 532471 Necessary modifications must be made. 020" RCM (Rubber Coated Metal) head gaskets with a dual silicone bead. Starting Thickness: 0. 022. Final Crush: 0. 020. James' RCM gaskets consists of a . 020" thick stainless spring steel base covered with a . 001" thick heat resistant Viton rubber on both sides. A very strong gasket which requires no re torquing. Gaskets will not become brittle or burn out.