Okla. Stat. tit. 47, § 47-12-609: Motorcycles - Required equipment

A. In addition to other requirements prescribed by this

chapter, by federal law or by local ordinance, all motorcycles,

except when operated on actual trail rides conducted outside of

public roads and highways, shall be equipped with:

1. Two rearview mirrors, containing a reflection surface of not

less than three (3) inches in diameter, mounted one on each side of

the motorcycle and positioned so as to enable the operator to

clearly view the roadway to the rear of the vehicle;

2. A windshield of sufficient quality, size and thickness to

protect the operator from foreign objects, except that in lieu of

such windshield, the operator shall wear goggles or other protective

eyewear which meets American National Standards Institute (ANSI)

Standard Z87.1 and provides positive retention, or a face shield of

material and design to protect the operator from foreign objects;

3. A properly operating speedometer capable of registering at

least the maximum legal speed limit for that motorcycle;

4. A fender over each wheel. All fenders shall be of the type

provided by the manufacturer;

5. A horn which shall comply with the requirements of Section

12-401 of this title; and

6. A muffler or other effective noise-suppressing system which

shall comply with the requirements of Section 12-402 of this title.

B. No person under eighteen (18) years of age shall operate or

ride upon any motorcycle unless such person is properly wearing a

crash helmet of a type which complies with standards established by

49 C.F.R., Section 571.218.