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This SAE Recommended Practice is applicable to two- or three-wheel motorcycles intended for highway use. Unless noted, requirements apply to both metallic and nonmetallic tanks. Accessory or aftermarket tanks as well as original equipment tanks are covered.

This SAE Recommended Practice incorporates dynamometer test procedures that produce riding range estimates for electric motorcycles during stop-and-go urban riding on surface streets and commuting trips in urban areas that include operation on freeways. This is typically done using a “coastdown” approach by disengaging the engine and assuming all losses are aerodynamic. However, with inherent losses in an electric motor, and no way to fully disengage the motor, another approach is to use a “on-road, constant speed” (Appendix B) method for fully electric vehicles to develop dynamometer coefficients.

This SAE Standard presents performance requirements for the parking stability of two-wheeled motorcycled intended for highway use.

This SAE Standard defines the test conditions, procedures, and performance specifications for 6 V and 12 V stop lamp switches intended for use on motorcycles.

Side stands and center stands are designed to support stationary two-wheel motorcycles. This SAE Standard establishes procedures for determining parking surface loading and stability limits as follows: a. The footprint pressure exerted on a horizontal parking surface by the stand. b. The tilt angle of the parking surface at which tip-over occurs. c. The tilt angle of the parking surface at which roll-off occurs.

The purpose of this SAE Standard is to specify the procedure for measuring the bank angle of motorcycles.

Side stands and center stands are designed to support stationary two-wheel motorcycles. This SAE Standard establishes procedures for determining parking surface loading and stability limits as follows: a The footprint pressure exerted on a horizontal parking surface by the stand. b The tilt angle of the parking surface at which tip-over occurs. c The tilt angle of the parking surface at which roll-off occurs.

This SAE Recommended Practice establishes the test procedure, environment, and instrumentation for determining the sound levels of motorcycles under full throttle acceleration and closed throttle deceleration.

This SAE Recommended Practice establishes test procedures, test conditions, environment, and instrumentation for determining the exhaust sound pressure levels of stationary motorcycles. These are based on a comprehensive study of a wide variety of on-highway motorcycles, and therefore are intended to be applied to on-highway motorcycles. For off-highway motorcycles, SAE J1287 continues to be the recommended practice.

This SAE Recommended Practice establishes the test procedure, environment, and instrumentation for determining the maximum sound level potential for motorcycles under wide open throttle acceleration and closed throttle deceleration.

This SAE Recommended Practice pertains to electrical systems of motorcycles both with and without batteries.

This SAE Recommended Practice provides uniform definitions and classifications for motorcycles.

This SAE Recommended Practice incorporates a track-based test procedure that produces a representative value for vehicle top speed when operating on a level paved road with a fully charged battery.

The motorcycle terminology presented herein addresses two-wheel single track vehicles, as well as motorized three wheel cycles. Although two-wheeled, single track scooters and mopeds are similar to traditional motorcycles, they have many characteristics which differentiate them from motorcycles, and while some terms will apply, this Terminology addresses motorcycles specifically, unless otherwise noted. Likewise, some three wheel cycles may have some similar design features and share components with motorcycle, the dynamics and handling of three wheel vehicles differs from two wheel, single track motorcycles.

Terminology within this document is limited to the dynamics and handling characteristics of single track, two-wheeled vehicles.

This SAE Recommended Practice applies to two- and three-wheel motorcycles intended for highway use. Vehicles commonly known as mopeds and mini-bikes are included in this vehicle category if they are intended for highway use.

The requirements of this document apply to all classes of motorcycles as defined in SAE J213.

This SAE Standard establishes the test procedure, environment, and instrumentation for determining the exhaust sound pressure levels of motorcycles under stationary conditions. Since initial publication, it has been successfully applied to regulation and monitoring of sound pressure levels of off-highway vehicles, and that remains its recommended application. Users of SAE J1287 for the purpose of roadside enforcement of sound pressure levels for on-highway motorcycles have reported difficulties with its implementation in that application. In response, SAE J2825 was developed, and is recommended for measurement of exhaust sound pressure levels of stationary on-highway motorcycles. Care must be taken not to confuse stationary sound pressure levels with total motorcycle sound pressure levels. This test does not evaluate total motorcycle sound during operation. For this purpose, SAE J331 or SAE J47 is recommended.

This SAE Recommended Practice specifies recommendations for rear view mirror systems to provide the operator with a clear view to the rear. It is intended as a supplement to the requirements for motorcycle mirrors given in 49 CFR 571.111.