Bold claim: Yamaha’s new V4 MotoGP bike could rewrite the game, and both Jack Miller and Alex Rins think the potential is bigger than ever as the 2026 season approaches.
Summary rewrite with expanded clarity: Yamaha has moved away from its long-standing inline-four configuration in favor of a completely new V4 engine for the M1. This is part of a late-season push to close the gap in the current regulation period. The new V4 version of the M1 debuted publicly at the Valencia test, where Fabio Quartararo logged a time only about half a second off the top pace set by Raul Fernandez at Trackhouse Aprilia. Yamaha also conducted a private follow-up test at Circuit Ricardo Tormo the next day to collect more data before the season break.
Different viewpoints from key riders: Quartararo remained relatively neutral about the V4’s performance after Misano, but Miller and Rins emphasized many reasons to feel positive about Yamaha’s 2026 prospects. Miller, riding for Pramac, said the V4 already looks promising, even though the bike isn’t a finished product yet. He stressed that there is considerable untapped potential and noted that the early laps were encouraging given the engine’s current tuning. He highlighted that electronics require substantial development and that work on fueling maps and engine behavior is ongoing, comparing the process to the adaptation he underwent when moving to the M1 last year. He also mentioned that traction control is acceptable but that fine-tuning the electronics to keep the bike from choking off the throttle is crucial.
Rins echoed the sentiment, pointing to improvements under braking with the V4. He indicated that while gearbox and other major components hadn’t seen drastic changes, the bike felt better than at Misano. He praised the improved shift shock behavior, especially at the Valencia layout, and explained that braking with the V4 allows better use of both tires rather than relying predominantly on the front tire. This change makes the bike feel more stable and helps the front end carry more speed into corners.
Context about front-end dynamics: A strong, predictable front end has been a hallmark of Yamaha’s current M1, enabling aggressive corner entry. Miller acknowledged that transitioning from the inline-four to the V4 will naturally feel like a step back in that department, but he believes a clear development path exists and that the team’s direction will lead to an effective fix. He also referenced Augusto Fernandez’s frustration and confidence concerns as a reminder that front-end performance remains a critical area of focus.
Traction and overall feel: Rins identified traction as the V4’s principal weakness in the 2026 prototype. Although the bike shows improved stability during lift-off and downshifts, finding consistent traction remains a priority for Yamaha. The brand has suggested updates for Sepang to address this, but Rins emphasized that improving traction is essential for overall confidence. Miller added that the V4 carries distinct Yamaha DNA and a unique torque delivery profile, with a weight and inertia feel that blends influences from other manufacturers but still maintains its own character.
Bottom line and remaining questions: The V4-spec M1 still retains some familiar traits from the current generation, yet it also delivers noticeable changes in several areas. Both Miller and Rins are optimistic that ongoing development will close the gap with the front-runners and unlock the bike’s full potential for 2026. The key unknowns remain how quickly the electronics, traction control, and front-end dynamics can be optimized to match or exceed the performance of the inline-four predecessor.
Discussion prompts for readers: Do you think the V4 has enough time and development budget to surpass the current benchmark by 2026? Will Yamaha’s approach pay off in the long run, or will the front-end parity with the older M1 continue to hinder its competitiveness? Share your thoughts and predictions in the comments.
