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. WARNING California Residents : Proposition 65 Warning Specifications 1000 RPM Spring Spring Inner Diameter: 49 mm Spring Height: 107 mm Roller Weight Size: 16×13 mm Roller Weight Weight: 9 grams Variator Outer Diameter: 89 mm Clutch Drum Number of Splines: 22 Clutch Drum Spline Inner Diameter (peak to peak): 11.10 mm Sliding Clutch Plate Outer Diameter: 119 mm Drive Plate Number of Splines: 26 Drive Plate Spline Inner Diameter (peak to peak): 13 mm Drive Plate Outer Diameter: 113 mm