Lifan 125cc Engine Motor Assembly Replace for CT70 CR110 CRF50F Z50 Pit Bike SSR. GENUINE LIFAN 4 Stroke 125cc ENGINE. LIFAN 125CC Engine Motor+ Exhaust Muffler for Dirt Bike ATC70 CT70 XR CRF50 70. Type: 1-cylinder, horizontal, 4-stroke, air-cooled kick start. Bore x Stroke: 52.4mm x 55.5mm. Power & Corresponding Speed: 6.5KW/7500rpm. Torque & Corresponding Speed: 8.0N. Clutch Type: Manual wet clutch. Start Mode: kick start. Compression: 9.0:10. Transmission: 4-speed(Manual clutch) N-1-2-3-4. Engine Oil: 900ml, 15W/40-SE, 4 stroke. Oil GEARS: 4 SPEED MANUAL CLUTCH, 4 UP. SPROCKET: 15T 428 CHAIN. Dimension: 470 x 275 x 280mm. This Motor should fit the following models. Note: This is not a guarantee, if you are unsure, please check with your local dealer. CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / CS 90 / SL 90 / ZB 50 /. 1 x LIFAN 125CC 1P52FMI ENGINE. 1 x Kick Starter Lever. 1 x Gear Shift Lever. 1 x Manifold set. 1x 7/8 Left Clutch Handle Lever. 1x 37.4 70mm/950mm Clutch label. 1x 428 41T 76mm sprocket. 1x Throttle handle grips. 1x Twist Throttle Housing.