This cable is one of the most common among GY6 and QMB139 throttle cables. The handlebar end threads into the throttle tube housing. There are two variations of this cable 1 has a longer drop than the other style.
This one has a 1" drop (see picture) and has a 79" length (Length Measured laying flat from outside angles of mounting hardware, not inner cable length.).
This can be used on 50-250cc scooters.