Motobecane Polini 39mm Piston - Teflon Coated am4 This is probably best suited

This is probably best suited for the experienced tuner

Powered by a variated AV10 engine

If you can't be convinced that 50cc is the French way to go

All you have to do is supply your own weights

head and gasket set

Motobecane Polini 39mm Piston - Teflon Coated am4 This is probably best suitedOriginal Polini piston for the Polini 39mm 50cc Motobecane kit. If you're lucky enough to own a 50cc av10 Polini kit, you'll know how hard these are to come by. If you prefer the original Polini piston over our remakes, then now is your chance to stock up. This one is specially coated. It is a "B" piston. So check your cylinder before purchasing.