Belgium preview quotes: Bridgestone

Hirohide Hamashima - Bridgestone Director of Motorsport Tyre Development

What are the challenges of Spa?

"Spa is a classic race circuit. It is fast and also has some interesting technical challenges over the course of a lap, and a lap here is longer than anywhere else we visit during the course of a season. There are very long high speed sections, with fast corners. Despite being a fast circuit, the downforce levels used on the cars is quite high, meaning heavy loads are transferred through the tyres. There is significant gradient change over a lap too. Eau Rouge is a very fast corner and the compression at the bottom of the corner means a lot of force through the tyres. Here sufficient tyre pressure is critical."

What are the primary tyre performance considerations?

"In tyre terms this is a severe circuit. High loads are put through the tyres during a lap. It can be quite cold here, so getting initial heat into the tyres could be a challenge, especially with the higher temperature working range medium compound. We must not, of course, forget the weather. We have seen wet races many times at Spa. Because it is a long course you can have one part dry, one part wet. Tyre choice during the course of the race could well be the deciding factor."