S&S Cycle SS106-5296 570CE Chain Drive Easy Start Camshaft Kit for Twin Cam 00-06Description for S&S Cycle EZ Start 570 Chain Driven Cam 106 5296 Start any engine regardless of displacement or compression ratio with a stock starter Save your starter and battery; tested for 10,000 starts without running battery down Spring loaded lobe in cam allows for easy start by initially reducing crank compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs