4 Cylinder Monkey Bike
Heres a different take on a pit bike build up. Not content with the usual bolt on 50cc parts available for Hondas evergreen Z50 “Monkeybike”, this fellow has managed to make a 125cc 4 cyl engine for his bike.
Very clever, but Im thinking a CBR600RR motor swap would be easier.
Click the read more button for a video of the little beast in action, and a link to the builders home page.
Link to builders home page (in German) but great pictures. 4 cyl Z50