Pirelli has concluded its initial analysis on a number of tyres that were run at the British Grand Prix last weekend. This allowed the company to identify the cause of the failures followed by deflations that affected both Mercedes and the McLaren of Carlos Sainz.
According to the Italian manufacturer, the key reason is down to a set of individual race circumstances that led to an extremely long use of the second set of tyres.
The second safety car period prompted nearly all the teams to anticipate their planned pit stop and so carry out a particularly long final stint: around 40 laps, which is more than three-quarters the total race length on one of the most demanding tracks of the calendar.
Combined with the notably increased pace of the 2020 cars (pole position was 1.2 seconds faster compared to 2019) this made the final laps of the Grand Prix especially tough, as a consequence of the biggest forces ever seen on tyres generated by the fastest F1 cars in history.
The overall result was the most challenging operating conditions for tyres, which led to the front-left tyre (which is well-known for working hardest at Silverstone) being placed under maximum stress after a very high number of laps, with the resulting high wear meaning that it was less protected from the extreme forces in play.
For the second race at Silverstone this weekend, Pirelli confirms that the nominated compounds: C2, C3, and C4 - one step softer than those seen at the last GP - will still be used.
Also the usage prescription will be reviewed, increasing the minimum tyre pressures to reduce the stress on the construction.