Article 4C

Front Upright Assembly (Excluding Axles, bearings, nuts & retention system)

Technical Regulations

Article 4C

FIA Source

Front Upright Assembly (Excluding Axles, bearings, nuts & retention system)

Chapter: C10.6

In Simple Terms

The front upright assembly is the structure that connects your car's suspension to the wheel and brake system. It includes the upright itself, any brackets used for adjustments, fasteners, electrical components, and wiring—but excludes the axles, bearings, nuts, and retention systems. Teams can modify these parts to fine-tune how the car handles.

  • Covers the upright structure and all its connecting brackets between suspension and wheel
  • Includes electrical components and wiring specific to the upright assembly
  • Allows variants and modifications for setup adjustments
  • Excludes axles, bearings, nuts, and retention systems (covered separately)
Official FIA Text

Upright assembly between the connection to the suspension members and the wheel bearings. Upright, Brackets - including variants for set-up changes, Fasteners, local electrical and electronic components, Upright Loom. Any braking system components described in Article 11

front uprightsuspension componentsupright assemblybrake systemwheel connection
2026 Season Regulations