Formula 1 tyre supplier Pirelli has confirmed the compound choices it has made for the United States Grand Prix later this season.
Pirelli has nominated the Ultrasoft, Supersoft and Soft in order to cope with the demands placed upon the rubber by the Circuit of the Americas.
As per usual, one set of the Ultrasoft tyres must be used only in Q3, while either the Supersoft or Soft tyres must be run for one stint of the Grand Prix, assuming dry conditions prevail.
Drivers are permitted free choice from the three nominated compounds for 10 of their 13 sets of tyres allocated for the weekend.
It means Pirelli has only yet to confirm the compound choices for the final three Grands Prix of the season in Mexico, Brazil and Abu Dhabi.
