Article C10.3.1

Outboard Suspension - Wheel Position Definition

Technical Regulations

Article C10.3.1

FIA Source

Outboard Suspension - Wheel Position Definition

Chapter: C10

In Simple Terms

As the suspension moves up and down, the wheel must stay pointed in essentially the same direction—it can't twist or angle more than 1 degree over a small 10mm movement. This ensures fair suspension geometry and prevents teams from getting sneaky advantages by using suspension that changes the wheel's angle.

  • The wheel's position and angle must be controlled ONLY by vertical suspension movement, not by steering input
  • The wheel can't change its directional angle by more than 1 degree when the suspension compresses or extends by 10mm
  • This rule prevents teams from designing suspension systems that inadvertently steer the wheel or change its camber excessively during normal operation
Official FIA Text

With steering wheel fixed, wheel position and rotation axis orientation must be uniquely defined by vertical suspension travel function only. Angle between ZW normal projection and Z axis must not vary more than 1 degree over 10mm suspension travel.

suspension geometrywheel alignmentoutboard suspensioncamber anglesuspension travel
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