Nev. Rev. Stat. § 486.311
Mirrors.
Every motorcycle or moped shall be equipped with two mirrors, each containing a reflection surface not less than 3 inches in diameter, with one mirror mounted on each handlebar, in positions enabling the driver to view clearly the highway for a distance of 200 feet to the rear.
(Added to NRS by 1971, 1470; A 1975, 1084)