I had a pair of 49cc Yamaha Razz scooters in college - an '87, and an '89. The fastest I ever got them was somewhere between 33 - 35 mph going slightly downhill. Usual top end cruising speed on level ground was roughly 30 - 31. Unfortunately, that's the closest thing to a motorcycle I've ever owned. 🙁
Was fun fixing them though - at one point, I had a ground floor apartment with a sliding door, so I'd break down boxes, lay them all over the carpet, and wheel them inside my living room to work on. 😀 This was especially nice in the winter. Yes, I rode them year-round, although they didn't run that great when it was really cold out.
I've thought many times since then about getting a real bike, but the complete retardedness of the drivers out here has always made me reconsider. Maybe one day though.