Chopper for small weak girls

Hello guys, I came out of the Audi forum to you and hope you can help me I need a chopper in the 500 – 750 cc range for my driving school. I have a few shorter students who can’t touch the ground with my Suzuki Bandit 650, let alone keep the balance (the motorcycle is already lowered by seat and the handlebar has already its distance pieces in it) Suzuki, Kawa, Honda and BMW unfortunately only offer these fat, shielded parts, Therefore my question: is there a Japanese manufacturer who manufactures chopper in the dimensions of a Suzuki intruder or a Virago? MTM-Didi