CM1200-1171NCY Super Trans Kit; QMB139 50cc$219.95 Shipped in the US.This Super Trans Kit is one of the best dollar-for-dollar bolt-ons to improve your scooter! It gives you quicker accelleration, higher top speeds, and makes your CVT the smoothest operating trans around! From rapid down shifting to slow cruising, this thing is smooth. Ultralight balanced components, oversized wear pads, and state of the art PTFE coatings ensure superior performance and long service life.Kit includes:NCY aluminum drive face assembly NCY pressure plate with slider bushingsNCY coated Golden pulley NCY racing clutch NCY secondary slider NCY clutch bell NCY 16 x 13mm 9G Roller Weights NCY 1000 RPM compression spring