Complete Yamaha clutch conversion ready to fit straight on with only a small modification to the mainshaft that can be easily done at home. Ideal for trials / scrambles or just to get the best from road bikes. All components are brand new. Fits 9E 10E 11E 31A 32A 33A 34A 35A 36A 37A 2T 3T 4T 31C 1H motors. And will fit 6E 7E 8E Motors that have had 9E shaft conversion.