Re: Engine sizes
Buy one. Then measure the bore and stroke and you'll see the seller is scamming.
The term 80cc is a marketing ploy used by sellers to get the Internet search engines to take you to them. The idea of an 80cc engine uses an untraditional method for determining engine displacement by including the combustion chamber in the calculation. The only true way is to measure the bore and stroke and when you do that you'll see that the advertised "80cc" engine is actually not what is promised.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"