Okla. Stat. tit. 47, § 47-11-1205: Riding on roadway, one-way street or highway

A. Every person operating a bicycle or motorized scooter upon a

roadway at less than the normal speed of traffic at the time and

place and under the conditions then existing shall ride as close as

is safe to the right-hand curb or edge of the roadway, except under

any of the following situations:

1. When overtaking and passing another vehicle proceeding in

the same direction;

2. When preparing for a left turn at an intersection or into a

private road or driveway;

3. When reasonably necessary to avoid conditions and while

exercising due care, including but not limited to:

a. fixed or moving objects,

b. parked or moving vehicles,

c. pedestrians or animals,

d. surface hazards, or

e. any time it is unsafe to continue along the right-hand

curb or edge of the roadway; and

4. When riding in the right-turn-only lane.

B. Any person riding a bicycle or motorized scooter upon a one-

way street or highway with two or more marked lanes of travel may

ride as close as is safe to the left-hand curb or edge of the street

or highway.

C. No person operating a bicycle or motorized scooter shall

pass other vehicles between lanes of traffic traveling in the same

direction.

D. Persons riding bicycles or motorized scooters upon a roadway

shall not ride more than two abreast except on paths or parts of

roadways set aside for the exclusive use of bicycles or motorized

scooters. Persons riding two abreast shall not impede the normal

and reasonable flow of traffic and, on a laned roadway, shall ride

within a single lane.