One of the most significant improvements made by Bridgestone during MotoGP's single tyre era has been to slash the time needed for a tyre to reach its working temperature.

The early years following the start of the control tyre rules in 2009 were blighted by accidents on cold rubber, including some colossal highsides for the likes of Jorge Lorenzo, but the issue is now vastly improved.

Bridgestone state that it now takes just a few corners for tyres to reach optimum temperature, compared with at least a lap previously.

"When designing a tyre, it is often a case of finding the best compromise between grip and durability as if you increase one of these, invariably you have to reduce the other. Basically, if you want a grippier tyre, then that tyre will need to wear out quicker," began Shinji Aoki, manager of Bridgestone Motorsport's Tyre Development Department.

"We also need to consider finding the best balance between outright grip and good warm-up performance and this is the area that we've worked hardest in recent years. This is why the riders now feel they can push on our tyres straight away. It means that MotoGP tyres are now safer than ever.

"The balance between grip, durability and operating temperature range in our MotoGP tyres is now at a very good level, but this isn't the result of one particular technology breakthrough. Rather, it is the result of the constant refinement of all aspects of the tyre including compound, construction and profile development."

Bridgestone will cease to be MotoGP's official tyre supplier at the end of 2015, with Michelin currently favourite to take over the role.



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