Im looking to get one of these machines for my 5 year old daughter. She currently scoots on my sons Kazuma 90, but its just too big for her. I want something that isnt too fast, but will last awhile. We have a track in the backyard (inside city limits) so I was worried about the noise a two stroke makes. Any suggestions , opinions between the two?

 

I bought my son a LTZ50 and its great. Its not loud stock. It runs great and I have had no problems with it. I would recommend it to anyone. It comes with a speed limiter in the clutch.You can take that out and double the speed. Very easy. A two stroke would be loud and you would have to work on it alot.