F1: Verstappen’s tyre failed in Baku because of ‘running conditions’ | Top Gear
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F1: Verstappen’s tyre failed in Baku because of ‘running conditions’

Pirelli release statement detailing why Stroll and Verstappen’s tyres failed

Published: 16 Jun 2021
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The tyre failures suffered by Lance Stroll and Max Verstappen at the Azerbaijan GP – costing the latter a potential victory – were caused by “running conditions”, according to Pirelli.

The Formula One tyre supplier has released a statement following an investigation with the FIA into the causes of why the left-rear tyres on both the Aston Martin and Red Bull failed in Baku. “The process established that there was no production or quality defect on any of the tyres, nor was there any sign of fatigue or delamination,” Pirelli said.

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“In each case, this was down to a circumferential break on the inner sidewall, which can be related to the running conditions of the tyre, in spite of the prescribed starting parameters (minimum pressure and maximum blanket temperature) having been followed,” Pirelli added.

Which means - we think - that despite both teams running the correct pressures and temperatures at the start of the race, something changed during the race that caused the failures.

The FIA and Pirelli have now agreed on a new set of protocols including an upgraded technical directive in order to monitor the tyres’ “operating conditions” during a race weekend.

Following the investigation, Red Bull said: “We have worked closely with Pirelli and the FIA during their investigation into Max's tyre failure on lap 47 of the Azerbaijan GP and can confirm that no car fault was found. We adhered to Pirelli’s tyre parameters at all times and will continue to follow their guidance.”

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The next race is at Paul Ricard in France this weekend.

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