Canada preview quotes: Bridgestone

Hirohide Hamashima - Director of Bridgestone Motorsport Tyre Development: "The Circuit Gilles Villeneuve is certainly a challenging circuit for us. Not many races take place here and the surface is very slippery, so just like Monaco we need to bring the softest compounds in our range, soft and super soft

"In contrast to Monaco, the speeds are very high in parts of the Montreal track, and very heavy braking takes place, meaning a lot of heat is generated and is transferred through the tyres. Durability from the tyres and good tyre management from the drivers are important considerations in Canada.

"We are still at an early stage of learning about the modified super soft compound. In Monaco we did not see a lot of running with this tyre because of the weather, and when it did run it was on a green track.

"There is still a lot to learn about this compound and it should be interesting for teams and drivers when we get to the Circuit Gilles Villeneuve, however we are confident in our predictions and the modifications we have made from the compound we had last season"