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Thursday, September 22, 2011

Masao Azuma, Bridgestone, analyzes Aragon GP

After last year's inaugural event in MotorLand, the second edition of the GP of Aragon gave the drivers and teams, as well as Bridgestone, the advantage of experience. But there are always imponderables in any race weekend. On Friday and Saturday were developed with very high temperatures, but the race day had lots of clouds blocking the sun's rays and blew a strong wind that kept much lower temperatures. However, Casey Stoner set a record for the pole and a new lap record on his way to victory, beating Dani Pedrosa and Jorge Lorenzo. The tire wear was a major element in the race and therefore a good management of them and efficient tuning were particularly relevant.

Commenting on these aspects and their impact on the race, Masao Azuma, Chief Engineer Field Bridgestone Motorsport , said:

"The tire wear was, of course, a crucial factor in the race, but was within our expectations. Was faster for some than for others, as expected, but for example we can see that Casey, though filmed in slower times from mid career, completed in a consistent and seamless manageability. "

"In this high level of competition, the choice of tire compounds is always a balance between performance to take temperature and durability in the race distance. Optimise one at the expense of the other. This season the drivers have specifically requested improve the performance tires the heating phase to improve security in the early laps, and for that we have been willing to sacrifice some durability in the race distance, that is exactly what we've seen that happening on Sunday "Japanese coach continues.

"Looking at the lap times, we see that the performance of the tires in the initial phase was very good, although the track temperature was 13 º C cooler than at the Grand Prix last year. Casey rolled under record when he had just made two laps in the race and set a new record on lap four. And the ten fastest drivers signed their best times in the first six laps, you can not ask for much more in terms of heating. And as I said, the other side of this, as you know the drivers, is that the tire performance will fall later in the race because durability is not so good. "

"The asphalt and the conditions in Aragon also contributed to the tire wear. The track was very dirty on Friday when it started to run, and tire wear was very high, again as expected. In the end week went clean, but when the race was still disputed dirty off line main, so that pilots were kept more for this battle since they rolled off the ideal line to have to attack or defend . The tire wear was not an issue in the race, but it was a factor. "

Why was there a step forward in the medium compound front and the extra drive? Azuma explains:

"From our experience last year, we knew that the stability of the front tire would be crucial, especially when braking downhill, and would need to achieve good wear resistance and durability. Half and extra hard compounds operate in temperatures well similar and can thus be used in a same environment, but we chose the medium compound for pilots who want a better grip, and gave good results for Alvaro and Suzuki, while the harder compound offering better stability and greater resistance wear. Given the conditions he had on Sunday, the extra hard rubber was chosen by most of the drivers for the race. "

source: motogp official website

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