YZR-M1 V4 : Yamaha has taken a bold leap into the future of MotoGP racing by unveiling the all-new V4-powered YZR-M1 prototype. This marks a significant departure from Yamaha’s long-standing reliance on the inline-four engine configuration, which had been its hallmark for years. The revolutionary change was officially revealed at the Misano World Circuit Marco Simoncelli during the 2025 season, and the prototype is set to make its track debut this weekend at the San Marino Grand Prix.
For decades, Yamaha has been the only manufacturer on the MotoGP grid running an inline-four engine, a configuration known for smooth power delivery and high revving capabilities. However, in recent seasons, Yamaha’s lack of straight-line speed became a significant drawback compared to competitors like Ducati and Honda, who opted for V4 configurations.
Having exhausted the performance potential of the inline-four setup, Yamaha has finally decided to embrace the V4 format. The new engine aims to improve power delivery, acceleration, and handling, giving riders the competitive edge they need to challenge the top contenders in the grid.
YZR-M1 V4 Specifications (Prototype)
| Specification | Details |
|---|---|
| Engine Type | V4 Engine |
| Power Output | Estimated 270+ bhp (typical for MotoGP spec) |
| Transmission | Seamless six-speed gearbox |
| Chassis | Lightweight MotoGP-spec aluminum twin-spar frame |
| Electronics | Advanced Traction Control, Launch Control, Ride-by-Wire, Cornering ABS |
| Weight | Regulation minimum (around 157 kg) |
| Debut Race | San Marino Grand Prix, Misano World Circuit |
| Test Rider | Augusto Fernández (Wild Card Entry) |
| Factory Riders | Fabio Quartararo & Álex Rins (Post-race test session) |
| Top Competitors | Ducati, Honda, KTM |
Performance Expectations
The shift to a V4 engine is expected to significantly improve Yamaha’s competitiveness in the following ways:
- Enhanced Straight-Line Speed: V4 engines are inherently better at high-speed stability and power delivery, addressing Yamaha’s long-standing speed deficit.
- Balanced Power Delivery: The new engine setup is expected to offer smoother torque curves, which improve handling, corner exits, and mid-corner stability.
- Weight Distribution Improvements: With compact packaging, the V4 configuration contributes to better overall weight balance and improved aerodynamics.
The prototype’s first appearance will be driven by Augusto Fernández as a wild card entry at Misano, while Yamaha factory riders Fabio Quartararo and Álex Rins will provide valuable insights during the post-race testing sessions.
Design and Engineering
- The chassis is built for maximum rigidity and low weight, utilizing MotoGP-grade materials and precision engineering.
- The bodywork is designed to offer superior aerodynamics, focusing on stability at high speeds.
- Electronics suite includes advanced features such as cornering ABS, traction control, launch control, and multiple customizable riding modes.
This new YZR-M1 V4 is not only a technical evolution but also a significant strategic move for Yamaha to remain competitive against powerhouses like Ducati and Honda.

When and Where Will It Debut?
- Debut Race: San Marino Grand Prix (Misano World Circuit Marco Simoncelli)
- Test Riders: Augusto Fernández (wild card entry)
- Factory Test Session: Fabio Quartararo and Álex Rins will test the new YZR-M1 V4 immediately after the race.
Yamaha has expressed gratitude to its loyal fans while showing high confidence that the V4-powered machine will restore its competitiveness in the MotoGP championship.
Also read: New Ducati Diavel V4 RS Unveiled: 180bhp Monster Cruiser Coming to India Next Year
Conclusion
The launch of the YZR-M1 V4 signifies Yamaha’s bold departure from tradition, acknowledging that incremental improvements on the inline-four were no longer enough. The move to a V4 engine configuration reflects Yamaha’s intent to reclaim glory in MotoGP, especially given the dominance of Ducati in recent seasons.
With state-of-the-art electronics, enhanced power delivery, and improved chassis balance, the new Diavel V4 RS prototype could be the breakthrough Yamaha needed to challenge Marc Marquez and other grid leaders. Fans should eagerly anticipate how the V4-powered YZR-M1 performs at Misano this weekend.
FAQs of YZR-M1 V4
1. Why has Yamaha shifted from Inline-Four to V4 in MotoGP?
Yamaha has transitioned to a V4 engine because the inline-four configuration could no longer keep pace in terms of straight-line speed and power delivery. The V4 offers more power, improved acceleration, and better weight distribution, crucial for competitive racing.
2. When will the YZR-M1 V4 make its competitive debut?
The new Yamaha YZR-M1 V4 will debut at the San Marino Grand Prix, held at the Misano World Circuit Marco Simoncelli, this weekend. Augusto Fernández will ride the prototype as a wild card entry.
3. Who are Yamaha’s factory riders involved in testing the new YZR-M1 V4?
Factory riders Fabio Quartararo and Álex Rins will test the V4-powered prototype during the post-race test session to gather data for further development.
4. What are the expected performance benefits of the new V4 engine?
The V4 engine offers higher power output (estimated over 270 bhp), smoother power delivery, faster acceleration, and improved handling, particularly in cornering and high-speed straights, compared to the old inline-four engine.
5. Is this the end of the inline-four era for Yamaha in MotoGP?
Yes, this move marks the end of Yamaha’s inline-four dominance in MotoGP. The company is now fully committed to the V4 engine layout to stay competitive in the current racing climate.






