Re: 4 stroke moped
i think what they mean may be that if you are out for speed, you are better off getting a puch, honda, tomos, or whatever 2-stroke moped since it's easier and much cheaper to get where you want to go. 4-stoke moped performance parts for indians, pre-hobbit-era hondas, etc, just don't exist. conversely, with a few exceptions (jawa, batavus), performance parts for most mopeds are readily available, and are pretty affordable.
choose your battles wisely.