(a) A “motorcycle” is a motor vehicle having a seat or saddle for the use of the rider, designed to travel on not more than three wheels in contact with the ground.

(b) A motor vehicle that has four wheels in contact with the ground, two of which are a functional part of a sidecar, is a motorcycle if the vehicle otherwise comes within the definition of subdivision (a).

Terms Used In California Vehicle Code 400

  • driver: is a person who drives or is in actual physical control of a vehicle. See California Vehicle Code 305
  • motor vehicle: includes a recreational vehicle as that term is defined in subdivision (a) of Section 18010 of the Health and Safety Code, but does not include a truck camper. See California Vehicle Code 415
  • motorcycle: is a motor vehicle having a seat or saddle for the use of the rider, designed to travel on not more than three wheels in contact with the ground. See California Vehicle Code 400
  • vehicle: is a device by which any person or property may be propelled, moved, or drawn upon a highway, excepting a device moved exclusively by human power or used exclusively upon stationary rails or tracks. See California Vehicle Code 670

(c) A farm tractor is not a motorcycle.

(d) A three-wheeled motor vehicle that otherwise meets the requirements of subdivision (a), has a partially or completely enclosed seating area for the driver and passenger, is used by local public agencies for the enforcement of parking control provisions, and is operated at slow speeds on public streets, is not a motorcycle. However, a motor vehicle described in this subdivision shall comply with the applicable sections of this code imposing equipment installation requirements on motorcycles.

(Amended by Stats. 2008, Ch. 672, Sec. 1. Effective January 1, 2009.)