50cc or 65cc leggero

[cyclefreak]

Hi I dont know how to tell if my bike is 50cc or 65cc. I believe its a 1965 model m aermacchi harley leggero. The frame reads 65m159?? Is this a m50 or m65 50cc or 65cc. Someone help me please.

 

[jesse8931]

post in the general that bike doesnt meet the requirments for this area