The FIA have announced that from 2021, 18 inch tyres will be used. The idea of tyres with a bigger radius has been tossed around for sometime but it has been decided that they will be used. Along with that, the front tyres will become more narrower, though the rear tyres will stay the same. Tyre blankets will also be banned from 2021 onwards. No tyre manufacturer has a contract until then (Pirelli's one expires after 2019).