Wheel Rim Impact Test

In Simple Terms

F1 teams must ensure their wheel rims can withstand a severe impact test where a 75kg weight is dropped onto the rim at high speed. If the rim cracks badly enough or the tire loses too much air pressure, the wheel fails and the team must use a stronger design.

• A 75kg mass is dropped at 6m/s onto the rim at a 13° angle to simulate crash impacts
• The rim fails if it fractures in a way that penetrates into the barrel, spokes, or hub
• The tire must hold pressure and not lose more than 100kPa in one minute after impact
• This test is based on international safety standard ISO 7141:2022