The MotoGP Tyre Pressure Rule
A rider's result can change after the chequered flag because of tyre pressure. Here is what the rule means and why it exists.
Why there is a minimum pressure
MotoGP sets a minimum front-tyre pressure that riders must stay above for most of the race. The rule protects safety and fairness by keeping tyres within Michelin's designed operating range.
How it is enforced
Front-tyre pressure is measured throughout the race. If it stays below the minimum for too long, race control can add a time penalty after the finish, changing the final classification.
Why riders sometimes run it low
Pressure rises as tyres heat up, especially in another bike's dirty air. Starting close to the limit can give short-term front-end grip, which is why the rule discourages dangerously low pressure.
The paddock debate
Riders, teams, and fans argue that the minimum could account for track and weather conditions. The rule in force today remains a single minimum applied under the published regulations.
Where to see the effect
When a tyre-pressure penalty changes a result, it appears on the Results page for that race. Results.