My boy wants to size up an Aprilia SR 50 Factory sportscooter. At 14, he's thinking about road riding and a 50cc scooter doesnt require any government intervention to be ridden on the roads, at least not out here in the sticks. But Mostly because he's found a big bore kit, a whopping 70cc replacement cylinder, for the little 2-stroke in a mag that mentioned he'd be able to hit 75mph. Sounds good to me, it's not that Brutale I've been desiring but it is an Aprilia and that's Italian enough for me.
I went to the Seattle show and was kinda disappointed overall. I didn't see anything from BWM, KTM, or Aprilia.
Under 50cc only requires a driver's license, no endorsement. Your boy will love the SR50 scooter, it's one of the sportiest scooters available in the states, but I'd tell him not to get his hopes up on seeing 75mph (or even 65mph) with that big bore kit.
A few years back I built up a SR50 about as far as it could go (70cc big bore kit, pipe, taller gears, aftermarket clutch, racing variator, heavier contra spring, and MANY hours dialing in the optimum roller weights). It pulled really good off the line and the throttle response was pretty impressive, but the only time I ever saw 65mph was in a tuck going downhill.
Mine was an '03 and they might
be a little faster now, but with everything dialed-in just right I would max out at 55-57mph on flat roads. I had hoped it would be closer to 65mph.
In stock trim the scooter will barely reach 35mph, and it will take a while to get there, so the big bore kit and gearing was a major improvement. Every time I rode it I had a huge grin on my face, but overall I was a bit underwhelmed with the big-bore kit.
In stock trim I was getting 120mpg. With all the go-fast parts I was still getting 80mpg. At the time I had a 2 mile commute, so I could fill it up with just over a gallon and ride for a month!