Both were on soft front...not sure about rear tyres. But I think they had identical combinations.
Lorenzo has been quoted as saying he "would have won with the different tyre".....which basically equates to "I could have beaten Stoner if I had a (perceived) tyre advantage." He looked quite perplexed that Stoner had beaten him....it was definitely a psychological blow for Casey.
They were running the 'old' medium front, new soft rear, Lorenzo, Stoner and Pedrosa.
[font=Arial, Verdana, Helvetica, sans-serif]For the front, most riders selected the new specification front slick tyre in the hard compound for better durability, while also benefiting from the improved rider feel provided by the new construction. However, the top three finishers in today’s race went for the medium compound front slick tyre for its better warm-up performance and better ability to remain in the optimal temperature range in case of rain during the race.[/font]
Masao Azuma – Chief Engineer, Bridgestone
The other thing about the new tyres is that HRC preferred the '24' tyre, all the other teams preferred the '21', which is what the new tyre at Jerez was. Because Dorna went with the majority, that is the new carcass for the rest of the season, unless there is another technology update.
While the bulk of the riders at Jerez ran the 21 in soft compound, the carcass is more flexible than the more-rigid carcass, medium compound of the three front runners - the more flexible carcass giving the tyre faster heat-up, the harder compound giving longevity.
There are three compounds for the 21 carcass for Jerez, Estoril, Le Mans and Catalunya, reverting to two fixed compounds - hard and soft - from Silverstone on.
Complicating matters further they have designated certain tracks 'special case', "[font=Arial, Helvetica, Verdana,]by agreement between Bridgestone, the Safety Commission and organisers where, due to weather or track conditions, the availability of a third specification of front tyre is not necessary".[/font] Those are [font=Arial, Helvetica, Verdana,]Estoril, Le Mans, Silverstone, Assen, Phillip Island, Sepang and Valencia. Sepang being a 'special', special case - they will have a hard and a harder compound rather than a hard and a soft.[/font]
So if a more flexible carcass allowed the riders to run the hard compound at a cool race like Jerez (track temp was only around 15c), I wonder how the hard tyre will cope when they are racing with the 50+C track temps they experienced at Indy and Mugello. Could the extra flex in the carcass return to the days of 'chunking'?