I own a
Go-Ped brand scooter myself and have ridden it many times. Too bad, it's in peices now (engine mount broke off and the steering colume snapped). I still hope to get it fixed some day.
Speaking of laws governing the use of motorized scooters and motorized bikes, in my area, we are restricted to roads with speed limits of 35MPH or less unless there is a marked bike lane. Also we must wear protective gear and clothing (Helmets and Pads)and have a headlight and taillight when riding at night (An X990 would work great for a headlight where I am because there are very few streetlights in my neighborhood.)
We also are not allowed to exceed 25MPH with our scooters (Mine can do around 22MPH on flat land but my friend modified his and can reach a maximum speed of 30MPH). Otherwised, if it can exceed 25MPH, it will have to be registered as a motorcycle and you need a license for that.
2-stroke scooters are loud depending on the engine. My stock Go-Ped isn't really that loud (In fact, you can hardly hear it when you're inside the house) On the other hand, my friend's modified scooter could be heard up to about 2 blocks away (I know when he's comming) and he also burns some special fuel (110 octane raceing fuel; I think it containes nitromethanol as well because there is a very strong smell of that after he passes me.) Not to mention it sounds like it's reving up to 14,000RPM!
For mini motorcycles, those are not allowed here. Hmm???
More quieter 4-stroke scooters and silent electric scooters are also avaliable. Electric powered scooters are not as restricted as gas scooters but most slow (10-12MPH max) for many. I have ridden an electric scooter before that almost performs as well as a gas(18 MPH max speed)but good electric ones like that cost even more than a normal gas scooter. They do have a lot of torque though (I learned that when riding the electric scooter I mentioned when I "floored it" standing still and nearly had the scooter jump out from under me.
Still one more scooter to check out is a
Hybrid scooter. Yes, there is an Internal-combustion/Electric hybrid scooter commercialy avaliable but it is very expensive as of now.
I actually thought of using hybrid technology on scooters even before the Toyota Pirus was avaliable in the US but I never had the time or the resources to build a prototype or even get a patent and next thing I know, hybrids are becoming mainstream. Anyway, my idea was simple; use electric where noise is a concern (some of my neighbors complain about motorized scooter noise) then get up to 15MPH and have the internal-combustion engine come on for higher speeds where noise isn't a concern.
Plus; I expect a hybrid scooter to get about 300 MPG (My gas can do around 100MPG) so it dosen't sound impossible to get that much fuel economy.