the bicycle engine is sets on middle of the bike. the style they can operate like motors.with small volume,and about 40km/h.

used for bicycle engine,sets on the middle of the bike.

with small volume .speed of 40km/h

operate like motor, including 2-stroke(f50,f70,f80)

4-stroke(f50)

small sound

pull start with hand then automatic

it use oil+gasoline

the inner paking is by air bubble plastic paper

the outside wrapping is by cartens

with EPA exhaust

gasoline bicycle engine