Displacement: 140cc Type: Single cylinder, horizontal, 4-stroke, 2 valves, OHC racing head, oil cooled Bore x Stroke: 55mm x 59mm Max. Power & Corresponding Speed: 8kw(7500±375) Max. Torque & Corresponding Speed: 9.5N.M(5000±250) Clutch Type: Manual clutch Starter: Kick/Electric Start Ignition: CDI Compression Ratio: 8.8:1 Gear ratios for each gear: 1st: 3.272, 2nd: 1.937, 3rd: 1.350, 4th: 1.043 Engine Oil: 900ml, 15W/40-SE Gears: 01234 4UP Sprocket: 15T 428 CHAIN Dimension: 470 x 275 x 280mm Weight: 23kg Engine Kit including: 1 x Lifan 140cc engine 1 x Kick Starter Lever 1 x Gear Shift Lever 1 x intake manifold 1 x Manifold hardware kit 1x full wire harness