Fabio Quartararo says he will no longer help Yamaha with development work pertaining to the 2027 MotoGP season after being denied a chance to test Pirelli’s new tyres.

The 2021 champion made that comment following last weekend’s Aragon Grand Prix, where he felt he was reduced to the role of a “test rider” as Yamaha evaluated several new components.

Quartararo is leaving Yamaha after eight seasons to join Honda next year, having completely lost faith in the Iwata-based manufacturer to turn around its troubled MotoGP bike.

And having spent the first half of the campaign running an underpowered, new V4 engine Yamaha has developed ahead of next…

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