Bridgestone goes with harder tires for Spa

As a contrast to the all-new Valencia street course, the next event will take place at a now permanent race facility which is steeped in motor racing folklore, Spa Francorchamps. At 7km long, Spa is the longest circuit on the calendar, by well over a kilometer, and there is quality in its layout as well as quantity in its length.

In tire terms it's a severe track and Bridgestone will bring the hardest two compounds from the range, the hard and medium. This is a change from last season when the medium and soft compound tires were used. Speeds regularly approach or exceed 300kph, whilst the slowest speeds on a lap are seen in the first turn, which F1 cars tackle at just over 60kph.

Bridgestone comes to Spa fresh from a tire test in Monza where the hard and medium compounds were used.

"Spa is extremely challenging for drivers and for tire engineers too," said Bridgestone's Hirohide Hamashima. "The layout is the longest of the year and it has a lot of complexity, with the added challenge of significant gradient changes. It is a high speed circuit, and one with particularly high loads on the tires because of the high levels of downforce used. Added to this, the weather in Belgium is often variable and we have seen rain a number of times previously, so Spa is likely to give everyone a lot of hard work. We have changed the tire allocation a step harder for this season as last year we had issues with heat durability, which should be less of a problem with the harder compounds."