Pirelli motorsport boss Mario Isola rejected the idea that Mercedes' eight-race winning streak was rooted in the Italian outfit's 2019 thinner tread tyres. In a bid to combat overheating and blistering issues that emerged last season, Pirelli decided to make the thinner tread structure seen at several venues in 2018 the norm for this season. The change played into the hands of Mercedes whose W10 adapted quite well to the specification. Such was the German outfit's supremacy up until Austria that several teams lobbied for a return to Pirelli's basic 2018-spec tyre. Isola argues that tread depth wasn't the only change to this year's compounds, adding that Mercedes simply did a better job...
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