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 but now also programmable through

but now also programmable through a PC to suit your ignition demands (curves) for maximum performance

A touring seat that looks downright sporty

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

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 but now also programmable through. 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.