Pirelli to trial 18-inch tyres at upcoming Silverstone test

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Formula One tyre suppliers Pirelli have announced that they will trial a new 18-inch tyre design concept at next week's post-race test at Silverstone.

F1 cars currently use 13-inch tyres, but the Italian manufacturer has suggested that running with larger wheels and tyres would lead to greater technology transfer between F1 racing tyres and road car rubber