My daughter had a 07 TTR 125 yamaha great bike they come in small wheel version and large wheel version.
and have disc front or drum version aswell.
I liked riding it aswell it never missed a beat
and some models come with elec start to.
But do have a clutch sorry , it wasnt that hard to teach her to use the clutch, I started her just staying in first gear and taking off with the clutch , then moved on later to change gears.
( they are a fourstroke )