Alex Rins and Jack Miller offered the clearest comparability but between the efficiency of Yamaha’s new V4 prototype and the present Inline M1 throughout Monday’s Misano MotoGP check.
Whereas team-mate Fabio Quartararo spent a full day on the V4, Rins accomplished 46 laps on the usual M1 within the morning earlier than switching to the prototype for 34 laps within the afternoon.
The Spaniard recorded a finest lap of 1m 31.571s on his Inline race bike, then 1m 32.101s on the V4, a distinction of 0.531s (see desk beneath).
Evaluating the time hole to the highest – to take bettering grip situations within the afternoon under consideration – Rins was 0.857s behind Alex Marquez within the morning and 1.727s from Pedro Acosta within the afternoon, a deficit of 0.870s.
“I am fairly proud of how the bike works,” Rins, who gained the 2023 COTA Grand Prix on a Honda V4, advised MotoGP.com.
“For positive. It is a actually new venture that Yamaha invests loads of time in, and to have two bikes for the Yamaha riders to check right here was actually, actually nice. I am so grateful for that.
“I attempted to adapt myself to the bike as a result of it was not straightforward. We solely rode within the afternoon. General it was fairly constructive. I am completely satisfied as a result of I really feel like braking was somewhat bit higher in comparison with the Inline4.
“It is a factor that we had been struggling lots with brakes and with the V4 it got here pure. For positive, there may be loads of room to enhance. It’s solely the second time that we soar on monitor with this bike and as I mentioned, it is a actually, actually new venture.
“For positive, the subsequent time that we soar on the bike, will probably be totally different. Totally different elements within the bike.
“I am so completely satisfied. Nonetheless, as I mentioned, there may be loads of room to enhance in energy, in dealing with, in lots of, many facets. However they’re working arduous and we’re in a great way.”
Jack Miller, 2025 Misano check
Jack Miller’s lap time comparability
Whereas Rins switched from Inline to V4 on Monday, Pramac’s Jack Miller went in the wrong way.
The Australian began on the V4 earlier than handing it over to the Monster Yamaha rider for Session 2.
Miller set a 1m 32.635s (+1.921s) on the V4 within the morning, bettering to a 1m 31.660s (+1.286s) on the Inline. That’s a lap-time distinction of 0.975s and ‘gap-time’ distinction of 0.635s, just like Rins’ numbers.
“The engine character is sweet. Having that inertia, and with the ability to work with that inertia,” mentioned Miller.
“The electronics want loads of work. Clearly, after 20-something years of working with an inline, not one of the mapping or throttle management or any of the digital aspect actually is suitable.
“So it is an entire new means of constructing and bettering each single time we exit the storage. And that was what in the present day was all about. Each single time we exited the storage, it acquired higher. It acquired extra usable, extra rideable. Connection was clearing up in small micro increments.
“You want not less than every week for all that. So we’re on the great method. The traction space is there. The good factor about this V4 that, though we modified mainly the whole lot on the motorbike, that Yamaha DNA of getting a stable chassis beneath you continue to appears to be there.
“This is not going to be the bike that we’ve got in Valencia when it comes to chassis and so forth and so forth. In order a primary model, we’re within the ballpark.
“For me, to be 1.9s off the tempo within the morning, and Fabio even nearer. It isn’t dangerous. It is a good base.”
V4 Lap Time Comparability:
| Rider | Finest V4 Time | Finest Inline Time | Distinction |
|---|---|---|---|
| Alex Rins | 1m 32.101s | 1m 31.571s | +0.531s |
| Jack Miller | 1m 32.635s | 1m 31.660s | +0.975s |
V4 ‘Hole-Time’ Comparability (to Quickest Rider):
| Rider | V4 Hole | Inline Hole | V4 Distinction |
|---|---|---|---|
| Alex Rins | +1.727s | +0.857s | +0.870s |
| Jack Miller | +1.921s | +1.286s | +0.635s |
In the meantime, Quartararo was much less upbeat in regards to the new bike, saying he didn’t really feel any actual profit from the V4 at Misano.
The Frenchman set the quickest V4 time with a 1m 31.598s within the afternoon, adequate for 18th on the mixed timesheets (+1.224s from Acosta).
Monday was the second time that Quartararo, Miller and Rins had tried the V4, after making their debut at a personal post-race check in Barcelona.
Take a look at rider Augusto Fernandez, who completed 14th on the V4 in Sunday’s San Marino GP, shall be again for additional wild-card appearances at Sepang and Valencia.
