Washington Revised Code Title 46. Motor Vehicles § 46.37.527. Motorcycles and motor-driven cycles--Brake requirements

(1) Motorcycles and motor-driven cycles need not be equipped with parking brakes;

(2) The wheel of a sidecar attached to a motorcycle or to a motor-driven cycle, and the front wheel of a motor-driven cycle need not be equipped with brakes, if such motorcycle or motor-driven cycle is otherwise capable of complying with the braking performance requirements of RCW 46.37.528 and 46.37.529;

(3) Motorcycles shall be equipped with brakes operating on both the front and rear wheels unless the vehicle was originally manufactured without both front and rear brakes: PROVIDED, That a front brake shall not be required on any motorcycle over twenty-five years old which was originally manufactured without a front brake and which has been restored to its original condition and is being ridden to or from or otherwise in conjunction with an antique or classic motorcycle contest, show or other such assemblage: PROVIDED FURTHER, That no front brake shall be required on any motorcycle manufactured prior to January 1, 1931.