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No David it has been used by many Auto engines over the years, but for another bike manufacturer to go that way may be admitting that they are not as good a designer as Ducati.
There are also a few other mechanical ways to do the same thing, rotary valve is one.
Don’t they all use pneumatic valves now? Ducati being the exception.
 
Good question David! I had similar thoughts when I read the post so I got a little curious.
The desmo valve idea was originally thought up in 1896 but it took untill1910 to get it set up properly in something worthwhile. Mercedes adopted it in their race and sports cars in the 50s before Ducati first used it in 1956. By 1968 Ducati were using it in all their top of the range models. They took out several patents around that time which will have long since run out so I can’t see why it can’t be copied by the other manufacturers. The system does have its negatives and I can only guess that the others think they outweigh the positives?
I did know that including the Mercedes angle but back in Casey Stoner’s day when I first took an interest in the desmo thing, although I have always l loved Ducatis, I understood the maintenance of the desmo valve engines on road bikes was problematic. I don’t know whether this is still the case with Ducati more recently being a shiny appendage of VW Audi rather than the artisanal operation it once was, particularly true of Ducati Corse back then.
 
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Yes all the others use a gas spring instead of a steel spring, but it has the same faults.
Again I am a technical ignoramus but the pneumatic valves still consume power as I understand or misunderstand it, which desmo valves don’t, working mechanically. Back in 2007 when Casey Stoner had the unfair bike that rode itself the Ducatis could actually rev higher than the other bikes which had spring valves, which was when the others went to pneumatic valves, Ysmaha before the end of the 2007 season as I recall with Rossi pushing hard for same; he had an engine explode or catch on fire in one of the early races with the pneumatic valve engine.
 
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As I understand it reading past interviews on this matter, the advantage that Desmo has over spring valves at high RPMs has largely been negated by pneumatic valves (Which admittedly are more complex and expensive).

Ducati has always had more power and torque than anyone else, but they only started competing properly at the front once they found the grip to put that power down and also made their bike turn; both of which have more to do with Ride Shyte Devices and aero than Desmo.
That’s the thing, getting the bike to turn was what made the difference, before Gigi it was said the L4 configuration was an insuperable problem, but Gigi fixed the handling. I am an admirer of both Ducati and Gigi but like you can’t approve the fix bring by ride height and aero trickery.
 
DiGiannantonio will undergo Surgery on his shoulder after the Thai GP and miss Sepang and Valencia.
 
DiGiannantonio will undergo Surgery on his shoulder after the Thai GP and miss Sepang and Valencia.
Bulega is supposed to be taking his place.
He’s no longer represented by the VR46 academy, but he still maintains good relationships with them and trains with them at times as well.
 
DiGiannantonio will undergo Surgery on his shoulder after the Thai GP and miss Sepang and Valencia.
Makes sense to miss those last 2 races as its not good to miss the preseason testing which will be on a bike 2 years newer than his current ride
 
My wife is Chinese, her mother is 95 years old and lived during the Japanese occupation of Hong Kong and Mainland China, the Japanese were brutal and ruthless with the Chinese.
Respectfully - that's absolutely true. However, that doesn't in any way justify the way the Chinese government treats everyone they feel obliged to subjugate. As a matter of perspective the war crimes perpetrated by the Japanese, are just a drop in the bucket compared to the 20 million who were executed, died of starvation or driven to suicide in Mao's Cultural Revolution.
 
Respectfully - that's absolutely true. However, that doesn't in any way justify the way the Chinese government treats everyone they feel obliged to subjugate. As a matter of perspective the war crimes perpetrated by the Japanese, are just a drop in the bucket compared to the 20 million who were executed, died of starvation or driven to suicide in Mao's Cultural Revolution.
No disrespect to the Chinese people but .... the CCP
 
Fair point, but Bulega has been keeping Toprak honest and that’s not the easiest thing in the world.
If Bulega does ride as replacement are we safe to assume Toprak would finish 30 secs ahead of any finish Bulega manages hmmm ? 🤔
 
If Bulega does ride as replacement are we safe to assume Toprak would finish 30 secs ahead of any finish Bulega manages hmmm ? 🤔
Possibly, but a MotoGP bike is the antithesis of everything that makes Toprak, Toprak.

He likes front bias, squishy tyres he can punish and a flexy chassis. MotoGP bikes do exactly the opposite of all that.
 
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