The key clutch is an advanced method of centrifugal clutch and is usually mounted to the output stop of the motor crankshaft. The clutch has two sheave faces; one that is laterally fastened (stationary sheave), and one that can move out and in to engage the belt (moveable sheave). https://messiahdczxu.ttblogs.com/11946868/little-known-facts-about-cvt