IC 9-13-2-108: "Motorcycle"

Sec. 108. "Motorcycle" means a motor vehicle with motive power that:

(1) has a seat or saddle for the use of the rider;

(2) is designed to travel on not more than three (3) wheels in contact with the ground; and

(3) satisfies the operational and equipment specifications described in 49 CFR 571 and IC 9-19.

The term includes an autocycle, but does not include a farm tractor, an electric bicycle, or a motor driven cycle.