This is2 stroke, 80cc gasoline engine, you can fix it in your owen bike, and make it into a easy motor bike.

Type of engine: 80feet start type Model of engine: Single Cylinder Air-cooling 2 stroke Bore&stroke: 47mmx40mm=80cc Rated power: 2.5kw/5000R/min Max power: 3.5kw/6000R/min Ignition model: CID Compression Ratio: 6/0.1 Driving ratio: 18/0.1 Fuel: No.90 Lub.oil: oil of 2 stroke gasoline engine(or oil for10w/40, 10w/30 ) Mixing ratio of fuel and engine oil: 16:1 for new sets, 20:1 after running 500km Type of sparking plug: Z4C 14mm Volume of oil sonsumption: 2.5L/100km Net weight of main set: 7kg Type of clutch: friction plate dry Cooling mode: nature air cooling Speed limitation: 38km/hour

2stroke bicycle engine