3.2cc Mini Flat-twin Motorcycle Engine Model 4 Stroke Gas Interal Combustion Engine Model R69 Type_Animal Series i recommend you use the

i recommend you use the 2S-3S lithium battery (7

You can assemble the trench shape

powerful power

using asynchronous crankshaft structure

3.2cc Mini Flat-twin Motorcycle Engine Model 4 Stroke Gas Interal Combustion Engine Model R69 Type_Animal Series i recommend you use the3. 2cc Mini Flat twin Motorcycle Engine Model 4 Stroke Gas Interal Combustion Engine Model R69 Features:. Motorcycle Engine: A flat twin engine is a two cylinder internal combustion engine with cylinders on opposite sides of the crankshaft. The most common type of flat twin engine is the boxer twin engine, where both pistons move inwards and outwards at the same time. The horizontal cylinder block allows the cylinder to avoid obstacles on the front