Formula One racing's official tyre suppliers Pirelli have confirmed the tyre compounds that will be available for the first four Grands Prix of the 2015 season.
As was the case last year, teams will use the yellow-marked soft and white-marked medium compounds in the Australian season-opener, and again in Bahrain and China. For Malaysia, they will be provided with the medium and orange-marked hard compounds - the hardest selection available.
Pirelli said the allocations reflected likely loads and degradation at each circuit, while also taking into account a new rear construction "designed to distribute forces and temperatures more evenly".
The 2015 season kicks off at Melbourne next weekend, with the opening free practice session commencing at 12.30 local time on Friday, 13 March.
At a glance - tyre compounds for 2015:
Australia - soft, medium
Malaysia - hard, medium
China - soft, medium
Bahrain - soft, medium
