Okla. Stat. tit. 47, § 47-1-104: Bicycle, electric-assisted bicycle, and motorized

bicycle.

A. A bicycle is a device upon which any person or persons may

ride, propelled solely by human power through a belt, chain, or

gears, and having two or more wheels, excluding mopeds.

B. An electric-assisted bicycle is any bicycle with:

1. Two or three wheels; and

2. Fully operative pedals for human propulsion and equipped

with an electric motor with a power output of not more than seven

hundred fifty (750) watts that meets the requirements of one of the

following three classes:

a. "Class 1 electric-assisted bicycle" shall mean an

electric-assisted bicycle equipped with a motor that

provides assistance only when the rider is pedaling,

and that ceases to provide assistance when the bicycle

reaches the speed of twenty (20) miles per hour,

b. "Class 2 electric-assisted bicycle" shall mean an

electric-assisted bicycle equipped with a motor that

may be used exclusively to propel the bicycle, and

that is not capable of providing assistance when the

bicycle reaches the speed of twenty (20) miles per

hour, and

c. "Class 3 electric-assisted bicycle" shall mean an

electric-assisted bicycle equipped with a motor that

provides assistance only when the rider is pedaling,

and that ceases to provide assistance when the bicycle

reaches the speed of twenty-eight (28) miles per hour.

An electric-assisted bicycle shall meet the manufacturing and

equipment requirements adopted by the Consumer Product Safety

Commission for bicycles and shall operate in such a manner that the

electric motor disengages or ceases to function when the rider stops

pedaling or the brakes are applied.

C. A motorized bicycle is any bicycle having:

1. Fully operative pedals for propulsion by human power;

2. A power drive system that functions directly or

automatically without clutching or shifting by the operator after

the drive system is engaged; and

3. A combustion engine with a piston or rotor displacement of

eighty (80 cu cm) cubic centimeters or less, regardless of the

number of chambers in the engine, which is capable of propelling the

bicycle at a maximum design speed of not more than thirty-five (35)

miles per hour on level ground.

D. As used in this title, the term "bicycle" shall include

tricycles, quadcycles, or similar human-powered devices, electric-

assisted bicycles, and motorized bicycles unless otherwise

specifically indicated.