See, when I used the pedal assist or full throttle motor only, it made these awful sounds and I was afraid to ride it in case I would break something. I've been looking at the Motorino's, which is only a 50cc scoot, but I can get a kit to make it a 72cc motor, allowing it to go up to 45-50 mph. I love the looks of them, which you can see here:
http://www.scootersus.com/ Any thoughts?