Indiana's current motorcycle laws:

IC 9-19-7

Chapter 7. Motorcycle Equipment

IC 9-19-7-1
Minors; protective headgear and face shields
Sec. 1. An individual less than eighteen (18) years of age who is operating or riding on a motorcycle on the streets or highways shall do the following:
(1) Wear protective headgear meeting the minimum standards set by the bureau.
(2) Wear protective glasses, goggles, or transparent face shields.
As added by P.L.2-1991, SEC.7.

IC 9-19-7-2
Handlebars; brakes; footrests; lamps and reflectors
Sec. 2. (a) Except as provided in subsection (b), a motorcycle operated on the streets or highways by a resident of Indiana must meet the following requirements:
(1) Be equipped with handlebars that rise not more than fifteen (15) inches above the level of the driver's seat or saddle, when occupied.
(2) Be equipped with brakes in good working order on both front and rear wheels.
(3) Be equipped with footrests or pegs for both operator and passenger.
(4) Be equipped with lamps and reflectors meeting the standards of the United States Department of Transportation.
(b) A motorcycle manufactured before January 1, 1956, is not required to be equipped with lamps and other illuminating devices under subsection (a) if the motorcycle is not operated at the times when lighted head lamps and other illuminating devices are required under IC 9-21-7-2.
As added by P.L.2-1991, SEC.7. Amended by P.L.1-1992, SEC.49; P.L.63-1994, SEC.1.

IC 9-19-7-2.5
Rear view mirrors; speedometers; turn signals
Sec. 2.5. A motorcycle manufactured before January 1, 1956, is not required to be equipped with the following devices:
(1) A rear view mirror.
(2) A speedometer.
(3) Mechanical or electric turn signals.
As added by P.L.63-1994, SEC.5.