F1: Ultra-softs to be used in Singapore

Pirelli has announced its ultra-soft tire will make its fourth appearance of the Formula 1 season in September’s Singapore Grand Prix.

The purple-walled tyre, previously allocated for Monaco, Canada and Austria, will be available for the night race along with the super-soft and soft. One set of the soft or super-soft much be used at some stage during the 61-lap race around Marina Bay.

Pirelli has nominated one set of the ultra-soft tyre to be used in the final part of qualifying. That set will be given back to Pirelli after Q3 for those who qualify in the top 10, but the remaining drivers will keep it for the race.

Teams are free to choose the remaining 10 sets for use during the weekend.

Originally on Autosport.com

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