Pirelli eases concerns over tyre failure
19 December 2013 – Pirelli has moved to ease concerns over the high speed tyre failure that Nico Rosberg suffered on the final day of the manufacturer's private test at the Bahrain International Circuit.
On Thursday morning, Rosberg tweeted that he suffered a tyre blowout at 320km/h (199 mph), an incident which forced his Mercedes team to end its programme early.
But Pirelli has since released a statement, making clear that the German was using one of the many prototype tyres being trialled, and said it would not be used again.
"The tyre tests in Bahrain regarded a number of prototypes, which were completely innovative in terms of structure and compounds, with the aim of developing the most suitable solutions for the next season," read a statement issued by Pirelli.
"This morning Nico Rosberg's Mercedes was fitted with one of these prototypes, a tyre which had only been tested in the laboratory and which will not be proposed again.
"Thus, the safety of the tyres which will be supplied for the next Championship is not in question.
"The accident which happened to Rosberg's car is being investigated and the findings will be communicated to the FIA and the teams."
Red Bull, Ferrari and Toro Rosso were also in action at the three-day test.