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Argentina MotoGP Test: Hiroshi Yamada (Bridgestone) - Q&A

“We need to consider that due to the dirty track lap times were slower than they will be for next year's grand prix - around four seconds per lap in our estimation - so tyre temperatures could be substantially higher when we return here.

“The asphalt looks smooth but is quite abrasive on tyres so we will need to develop tyres that are good at managing high temperature and wear, while also giving the grip needed at this fast and flowing circuit. Developing tyres for this amazing circuit will be a challenge but as we showed with the Circuit of the Americas, this is the kind of technical undertaking that Bridgestone relishes.”

Did Bridgestone acquire enough data from the test to decide which tyre specifications it will provide for the first race at this circuit next year?

“Yes, the data we acquired helped give us an idea of what tyre specifications we will develop for next year's Argentina Grand Prix, but ideally it would have been better if the track was cleaner and we had two days of dry track time.

“One of the most interesting findings from the test is that although there are nine right-hand compared to five left-hand corners, the left shoulder of the rear slicks experienced much higher temperatures than the right shoulder, due to the fast left-handers.

“However, the greater number of right-handers means abrasion on the right shoulder is quite high, therefore we have two different, but equally important factors we have to manage on the opposing shoulders of the rear tyre; high temperatures on the left shoulder, high abrasion on the right shoulder.

“With this in mind, I believe that our rear slicks for next year's grand prix at this circuit will be in our heat-resistant construction. For the front slicks, I envisage we will need options that are towards the harder end of our compound selection to give the riders the stability and abrasion resistance they will need at this demanding circuit.

“We must also consider that next year's Argentina Grand Prix will most probably take place in warmer weather than we had at this test, this will result in higher track temperatures which again suggest harder rubber compounds will be used in our tyre allocation for next year's race.”

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