Bridgestone also against single tyre rule

A proposal to introduce a single tyre supplier in 2008 was tabled by rights holder Dorna in the Grand Prix Commission meeting at Motegi last weekend.

Michelin instantly expressed its opposition to the idea, and now Bridgestone has concurred with its main rival's stance.

"At the moment we know Dorna proposed this idea, but they haven't decided yet, of course," Yamada said in an interview with the official MotoGP website.

"We would like to continue our current situation, which is competition.

"It's very important for us because we can improve our technical development of the tyres with this high level of competition. If we had a one-make race, we have nothing.

"We don't like that, we'd like to continue our current situation."

Yamada said it was too soon to decide whether Bridgestone would apply to become MotoGP's sole tyre supplier if such a rule was introduced.

"At the moment everything is possible of course," he said.

"But honestly speaking, we didn't expect this situation. So when they decide officially, after that we need to discuss it internally in the company."

Dorna CEO Carmelo Ezpeleta has promised a firm decision on the 2008 tyre rules by the Malaysian Grand Prix weekend.