INDYCAR has announced an update to the race tire usage requirements for the Sonsio Grand Prix on the Indianapolis Motor Speedway road course on Saturday, May 10.
For the race, teams will be required to use:
- Two sets of alternate compound tires (one more than previously required)
- Two sets of primary compound tires (one more than previously required)
There are no requirements in terms of new (sticker) sets of tires used in the race. The two completed laps needed to satisfy the tire requirement rule, where one (1) lap must begin once the Green Flag has been displayed to the Race Leader (Rule 15.3.3.2.3.) for each of the four sets (Rule 15.3.3.2.) remains in effect.
The update strives to ensure an all-out,…