The main clutch is an advanced type of centrifugal clutch and is usually mounted to your output close of the engine crankshaft. The clutch has two sheave faces; one that is laterally set (stationary sheave), and one that can go in and out to engage the belt (moveable sheave). https://gearboxcvt00863.blogspothub.com/31580424/the-5-second-trick-for-gearbox-cvt