Black 80cc Bike Bicycle Motorized 2-Stroke Gas Motor Engine Kit
Features:

A complete engine kit for converting your bike
Heavy duty metal engine body for added durability
Super fuel-efficient, only consuming 2.5 litre fuel per 100km
Fast and smooth, can speed up to 38km/h
Comes with all needed hardware for easy installation
Fit for most type 26″ and 28″ bikes, such as mountain bikes, road bikes,cruisers, choppers.

Specification:
Mode of Engine:Single cylinder, air-cooling, 2-stroke
Bore & Stroke:47mm & 40mm
Rated Power:2.5Kw/5000r/min (3 horsepower/5000r/min)
Max Power:3.5Kw/6000r/min (5-6 horsepower/6000r/min)
Ignition Mode:CDI
Model of Chain: 415
Chain Length: 110 links
Compression Ratio:6:01
Driving Ratio:18:01
Fuel Type:No.90
Capacity of Tank:2L
Speed Limitation:38km/hour
Lubrication Oil: oil of 2-stroke petrol engine (Or oil for 10W/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 Consumption:2.5L/100km
Type of Clutch:Friction Plate / Dry
Cooling Mode:Natural air cooling

Package included:
1x 80cc 2-stroke engine
1x Carburetor
1x Ignition coil & CDI
1x Throttle handlebar set
1x Throttle cable
1x Clutch cable
1x Kill switch
1x Clutch lever
1x Chain
1x Chain cover
1x 44T Sprocket W/ 9 Hole Clamp Pads
1x Chain Tensioner
1x Fuel tank, Fuel filter
1x Gasoline fuel line
1x Petcock
1x Muffler