Motobecane av10 Athena 39mm "50cc" Cylinder Kit w the cylinder is lined with

the cylinder is lined with a nickel-carbide coating for durable

Some slight differences exist between these and the ASSO cast one that probably came with your Polini- notice the lack of scallops on the side

Puch e50 15 Bing intake

You almost can't tell the difference looking at this and a genuine AJH

There is a dent on top of the tank that is shown in the photos

Motobecane av10 Athena 39mm "50cc" Cylinder Kit w the cylinder is lined withAthena 39mm air cooled kit for av10 engines. The finish on this kit is quite nice. Pretty basic layout on the ports. The piston features a notched skirt. Comes with cylinder, piston, rings, wrist pin, clips, two rings, base gasket, head gasket, and exhaust crush gasket.