United States Grand Prix debrief with Tohru Ubukata
Round 9: United States GP – Post-race debrief
Mazda Raceway Laguna Seca, Tuesday 27 July 2010
This year Bridgestone brought their asymmetric rear slicks to the United States Grand Prix and as well as being
welcomed by the riders they contributed to a new lap record and a fastest total overall race time. Jorge Lorenzo took
his sixth victory of the season after Dani Pedrosa crashed out to extend his championship lead to 72 points before the
summer break. All riders used the softer rear Bridgestone slicks, and Mika Kallio, Alex de Angelis and Alvaro Bautista
were the only riders not to opt for the harder front tyre.
Q&A with Tohru Ubukata - Manager, Bridgestone Motorcycle Tyre Development Department
What can you say about the performance of the asymmetric rear slicks this year?
“I think that the numbers speak for themselves in terms of the improved performance that the asymmetric rear slicks
offered at Laguna. Both Casey and Jorge lapped faster ................Read more
Why weren’t asymmetric rear slicks selected for Laguna Seca last year?
“Laguna Seca does have more left-hand corners than rights but it is not a typically asymmetric circuit – that is to say
the difference in temperature and wear rate between the two rear tyre shoulders is not significant. When tyre
temperatures are markedly higher in one shoulder than the other, this is when we use asymmetric tyres to equalise
tyre temperature in each shoulder using a combination of harder and softer compound rubber.....Read more
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