Pirelli has announced the following compounds for the third and fourth rounds of the 2017 Formula 1 season.
In Bahrain, to be held from April 14-16 on the Sakhir circuit:
P Zero White medium
P Zero Yellow soft
P Zero Red supersoft
These are the tyres that must be available (at least one of them to be used) at some point in the race:
One set of P Zero White medium
One set of P Zero Yellow soft
There are the tyres assigned for Q3 in qualifying:
One set of P Zero Red supersoft
In Russia, to be held from April 28-30 on the Sochi circuit:
P Zero Yellow soft
P Zero Red supersoft
P Zero Purple ultrasoft
These are the tyres that must be available (at least one of them to be used) at some point in the race:
One set of P Zero Yellow soft
One set of P Zero Red supersoft
There are the tyres assigned for Q3 in qualifying:
One set of P Zero Purple ultrasoft
In accordance with the regulations, each driver must save for Q3 one set of the softest of the three nominated compounds. This 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.
For the first five events of the season all 13 sets for each driver are identical and defined in the regulations: seven sets of the softest of the three nominated compounds, four sets of the middle compound and two of the hardest compound nominated.
