Formula 2 is to switch to 18-inch tyres next year in a move that will help Pirelli get a season of racing experience under its belt before F1 follows suit in 2021.
As part of Liberty Media’s vision for a big overhaul of F1 from 2021, one of the changes that has been set in stone is a shift to 18-inch rubber.
But in a surprise move announced ahead of the Spanish Grand Prix, it has been decided that F2 will have the different-sized wheels a year in advance of F1.
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