Anbull 49CC 4 Stroke Gas Petrol Motorized Bike Bicycle Engine Motor Kit for 28” V Frame Bike and 26” ATV

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• 49cc 4 stroke pull start petrol conversion kit fits for normal 28” V frame bike and 26” ATV bike , both with 28-40mm frame tube. Note: Installation instruction not included.It is recommended to find a professional to install or refer to videos online by searching "49CC bike motor installation".
• This 4 stroke bicycle engine kit is more stable, more reliable and Quieter than the 2 stroke rivals.
• Mode of engine: single cylinder, air-cooling, 4-stroke; Compression ratio:8.0 : 1; Ignition System: Transistorized magneto ignition. Pls note: The switch has two cables (green and black) and the engine has one cabel (black), you can just connect the black to black and don' t need to connect the green cable.You can wrap it with a electrical tape.
• 4-stroke 49cc bike engine kit is perfect to upgrade the regular bike to a motorized bike,you can enhance the riding experience by accelerating the speed.
• With powerful motor and 44 tooth 9 hole sprocket, this motor is with speed 27-32 MPH / or 43-51 KPH.With 41.8 x 36 mm bore stroke,49 cm3 displacement, oil tank capacity 2.5.