Practice starts during 2025 MotoGP winter testing at Sepang and Buriram have produced some drama🐷tic images of riders lighting up the💛 rear tyre after dropping the clutch.

While such🦩 ‘bad’ starts were common on the opening day of testing with new machines in the past, some quick adjustments to the electronic launch control would soon settle things down.

But with ride-height devices, front and rear, added ♚to the equation, alongside clutch release, torque delivery and rider position, starts have become much more complicated. Especially on 'dusty' low-grip grids such as Buriram.

While going as low as possible with the holeshot device might seem obvious for anti-wheelie purposes, 168澳洲5最新开奖结果:Jack Miller revealed last October that, due to the risk of rear wheel spin, KTM had four different front settings to choose between.

Other manufacturers are also sure to ha💦ve multiple height 🌼options.

“It’s to do with the front end, obviously with the front start device. So we are 🐓just playing with different stroke lengths,” Miller had said of wheelspin during practice starts.

"Obviously in high-grip conditi𒉰ons, you jam the thing down [as low as you c💞an] like a drag racer.

“But in lower grip conditions, you want to play with a littlꦿe bit more weight on the rear.

“It’s just understanding what’s working at that track, by picking the dirtiest spot on the grid and se🎐eing wh🦩at you can get away with!”

Miller then "brought over s🐻ome knowledge" to Pramac Yamaha for 2025 and had no complaints about the M1's s﷽tarting ability at the recent Buriram test.

"She🗹’s a rocket ship. I already set Yamaha’s r꧑ecords and she’ll be ready to go when we go racing," he said.

“Otherwise, you don’t know where the limit is”

2025 pre-season testing saw all five factories running lower-than-ever ෴holeshot devices, with fairings touching the track in some caseꦇs.

But the perfect balance between wheelies and wheelspin is a never-ending quest since track conditions are always🐻 changing, even if only in terms of temperature.

Yamaha technical director Max Bartolini explai♎ned that there is no exact formula for a perfect MotoGP start. The only way to find the limit is to go over it during testing and practice sessio༒ns.

“We looked at the others and we've tried [to go super low] like everybody else!” Bartolini told wuqian0821.com.

“We’re trying to get the maximum, so that means during the tests we also sometimes try to 🅘𓃲make even too much.

“To set the holeshot device is a kind of mixed combination. It’s not🧸 a fixed🌠 value.

“It depends also on what the ride𝓀r does. How he uses the clutch. And still there is suspension [movement] in the game as well.

“So in the tests, you try to find the best [combination] and maybe sometimes it’s a little bit t🔴oo much.

“But otherwise, you don’t ꦚknow where the l❀imit is.”

While the ultra-low holeshot device settings are not used ꦫafter the race start, the normal ride-height lowering system is always available to aid acceleration onto the long straights.

Some manufacturers, such as Ducati, have an ‘automatic’ system that is triggered by the ride🧸r on the way into a corner and lowers by itself on the exit.

Others, such as Honda, use a manual system where the rider decides when the bike should be lowere🧜d on corner exit.

Bartolini said Yamaha has both options available.

“We have different combinations, automatic or manual. It depends on what the♒ 𝐆rider prefers,” he said.

The first real start of 2025 will take plac♚e at Buriram on ෴Saturday afternoon, in the Thai Grand Prix Sprint race.

When MotoGP practice starts go wrong...