The Magnum 44 continuously variable transmission torque converter system for up to 18 HP applications is a rugged piece of machinery. The drive clutch is designed to withstand the extreme rigors of rough applications. The driven unit is of the same quality construction as drive clutch. Application possibilities cover a wide range. By changing pucks and spring, you can convert the Magnum from the standard 4 cycle setup to be used on 2 cycle engines.