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SILVER COLOR KIT. NEW Model, Manufactured this year 2018 Model, PK80 Model known for Quality, SPEED - FASTER

This New 2018 PK80 High Compression HIGH PERFORMANCE Model 66cc 80cc petrol gas engine kit is more POWERFUL and FASTER used to upgrade the regular bike to a SUPER Motorized Bike. After converting your bike, you can enjoying riding at a MUCH faster speed, which can reach 44km/h. It almost runs as fast as a motorcycle or scooter, making your outdoor trip more convenient. This engine kit fits most 26" or 28" bikes with V-frame.



Slant Angle Compression Cylinder Head

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 44km/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.




Mode of Engine:Single cylinder, air-cooling, 2-stroke


Bore & Stroke:47mm & 40mm


Rated Power:3.5Kw/5000r/min (4 horsepower/5000r/min)


Max Power:4.5Kw/6000r/min (6-7 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


All the needed mounting brackets, gaskets, and hardware




Please also keep in mind that the motor will use a mix of gasoline and oil. The oil is used as a lubricant. Without it, the performance and longevity of the motor will be reduced.


Be assured the mixing ratio of fuel and engine oil is 16:1 for new sets, 20:1(18:1 is much better in summer because of the hot weather) after running 500km.


Air cylinder might take some time to adjust to the load. Thus to avoid possible complications for the motor, please limit the riding time to a maximum of 1 hour for the first few rides.


If you need Instruction or video,please contact our custom service.