Detailed Product Description Complete Specifications: 1. Engine type :50cc/70cc/90cc/110cc,4 strokes 2. Bore and stroke :39x41.4/47x41.4/47x49.5/52.4x49.53. Compression rating :8.8:14. Max. torque :4.2N.m/5000rpm , 4.2N.m/5000rpm, 5.2N.m/5000rpm, 5.5N.m/5000rpm5. Max. power:3.0kW/8500rpm/,3.0kW/7500rpm,3.3kW/7500rpm,3.6kW/7500rpm,6. Ignition type :CDI7. Transmission :automatic/(4-speed,semi- ...