He's on a KTM 50 right there, but he's moving up to a KX 65.
He can barely touch the ground with one toe on the 65, but I hold him up, give a little push and ease the clutch out in 3rd, and he can ride it pretty good, even caught a little bit of air last time.
I did just put in a clutchless shift kit in it last week, and can't wait to take him out Sunday and let him play with the gears a little.