Overview
ISO 9565:1990 specifies standardized test methods to determine the parking stability offered by side-stands and centre-stands on two-wheeled motorcycles. The standard defines measurement procedures for tilt and disengagement angles, the way to measure stand contact area and the method to determine specific pressure applied by stands. It references vehicle mass definitions (ISO 6726) and gives procedural details to ensure repeatable, comparable results.
Key Topics
- Test setup and vehicle condition: Motorcycle must be at its mass in running order (per ISO 6726). Suspension and tyre inflation must be set per manufacturer instructions; tyres are to be inflated to the maximum recommended inflation pressure within manufacturer limits.
- Angle measurements: Two angles are measured:
- Angle of basculement (angle of tilt): inclination of the supporting surface about an axis parallel to the X axis where the motorcycle begins to tip.
- Angle of décrochage (disengagement angle): minimum rotation of the supporting surface about the Y axis at which the stand retracts without external intervention.
- Measurements are taken with an inclinometer accurate to 0.5°; three measurements are performed for each configuration and averaged when individual results vary by less than 1°.
- Surface of stationnement: Tests are conducted on a rigid, flat platform. Where required, an inelastic material layer of thickness 5 mm + 0.5 mm is placed on the platform to obtain an imprint for area measurement.
- Stand contact area and force:
- The contact area of each stand point is determined from the imprint left in an inelastic material; area is reported in cm² with a tolerance of ±10%.
- Contact force is measured in newtons using a force-measuring device embedded in the horizontal platform; device accuracy should be ±2.5 N.
- Specific pressure is calculated in N/cm² by dividing measured force by measured contact area.
- Steering and transmission conditions: If a steering lock exists, tests must be executed for all lock positions; otherwise tests are done with the steering at maximum left and right rotation. Transmission is in neutral and parking devices are engaged as applicable.
Applications
- Verification of parking stability during motorcycle design and type approval
- Comparative assessment of side-stand and centre-stand performance
- Supporting safety documentation for motorcycle manufacturers and test laboratories
Related Standards
- ISO 6726:1988 - Cyclomoteurs et motocycles à deux roues - Masses - Vocabulaire (referenced for mass in running order)
For engineers and test labs, ISO 9565:1990 provides reproducible procedures to quantify how well side and centre stands hold a motorcycle stationary under defined conditions and how to report angle and pressure results consistently.