The car had belt drive to the ear wheels.
Each fan had its own self-contained motor unit, with no need for belt drive.
It used a friction transmission and belt final drive.
However, belt drives are limited in the amount of power they can transmit.
I the early 1980s, Harley had resurrected another idea from its past: belt drive.
As a result, belt drive would prove a popular feature of many Harleys, including this one.
The actual working model, however, did not have the twist grip, belt drive, or brakes.
Idlers are far more expensive to build than belt drives.
For a toothed belt drive, the number of teeth on the sprocket can be used.
They are coming out with another wheel "soon" though, with belt drive and double the motor power.