The instructor rode in the back and had the larger set of handlebars (for leverage) with the pupil of front with the short bars. This motorcycle actually started the Motorcycle Safety foundation training program in the United States. It was first used by Southern Illinois University Carbondale.
The Jawa is usually on display at Barber Motorsports Speedway Museum in Birmingham, AL. The dealer was a big fan of Jawa/CZ and the American Motorcyclist Association.