Bridgestone has announced the compound allocations for a further three rounds of the 2010 FIA Formula One World Championship.

Teams have been informed of the compounds to be brought to the Canadian, European and British Grands Prix. The concept of leaving a compound step between the two allocated for an event is retained for all of these races.

The softer compound tyre used at any Grand Prix can be distinguished by the green bands on the edge of the tyre side walls. These show Bridgestone's support of the FIA's Make Cars Green campaign.

Hirohide Hamashima, Bridgestone Head of Motorsport Tyre Development: "The Canadian and European Grands Prix take place on street courses where it is important to have good grip due to the slippery nature of the track surfaces. As these tracks are not used regularly for racing, even the allocations we bring will seem too hard when used on the Friday. By race day the circuit improvement and rubber laid will mean that the high grip of the super soft compound paired with the greater durability of the medium compound should provide a good combination. The Silverstone circuit is historically the most severe on the calendar and now the new layout makes it even more severe. The new straight means a higher average speed, and there is hard braking and fierce acceleration over a lap. As always, we will be very vigilant to watch tyre temperature and wear. We expect we will see graining, even with the hard compound, but we believe that the soft and the hard compounds should allow exciting racing."