Quartararo believes Yamaha has closed Ducati MotoGP top speed deficit

A lack of engine power dogged Quartararo’s title defence in 2022, with Yamaha forced to abandon its new engine prior to testing last year due to reliability issues and run a specification closer to the 2021 version.

Since then, Yamaha has been hard at work to develop a new, more powerful engine, bringing various versions to tests at Misano and Valencia last year prior to this…