camshaft retaining ring

Installs on the left side on the frame down tube behind the rear cylinder on 4-speed B

With 50mm ID and 0mm offset (flat)

1/4-24 threaded

and mounting hardware

DYNOJET POWER COMMANDER V Offset-delar camshaft retaining ringThis fuel injection module is just (3 1 4" 83mm wide x 2 1 4" 57mm high) and works in conjunction with the stock ECU unit. No need for permanent changes. It will make the fuel system and the ignition fully programmable. During cold start up the Power Commander can read the exact engine temperature through the bike's own ECU, which allows the tuner to choose how much fuel to add for a given engine temperature. Big Inch modified bikes should be easier