P1racenews AI automatic summary:
Jack Miller says Yamaha’s V4 already ‘does what it should’ with the rear tyre, revealed Ducati once considered an Inline4 during the M1’s peak years.
Jack Miller believes that Yamaha’s new V4 prototype is performing well with modern Michelin tires, despite not being faster than the current Inline4 yet. The rear grip advantages of the V4 layout were evident during his 37-lap session at Misano.
Miller explained that the V4 functions as needed with the current tire and package requirements, emphasizing the importance of using the rear tire to stop the bike. The development of tires has influenced the design of bikes, with an emphasis on exploiting the strengths and weaknesses of the rear tire.
Michelin has been MotoGP’s exclusive tire supplier since 2016, with Pirelli set to take over in 2027, potentially requiring different bike attributes. Miller acknowledged the risks but believes that progress is necessary to prepare for any changes in tire manufacturers.
The V4’s performance in terms of engine brake and exhaust valve assistance has been promising, despite being slightly slower than the Inline4 at Misano. Yamaha’s next step will be a wild-card entry with Augusto Fernandez at Sepang in October, as they continue to evolve with their V4 development.
