This Super Transmission Kit is one of the best dollar-for-dollar bolt-on kits to improve your bike Quicker acceleration, higher top speeds, and this kit makes your CVT the smoothest operating transmission around Description This Super Transmission Kit is one of the best dollar-for-dollar bolt-on kits to improve your bike! Quicker acceleration, higher top speeds, and this kit makes your CVT the smoothest operating transmission around. From rapid down shifting to slow cruising, this thing is smooth. Lightweight components include the variator, clutch assembly, drive face, flywheel, roller weights and sliders.