Ducati Desmo MX 450 reveal-livestream

Gravel
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Ridgecrest, CA, USA
1/22/2024 5:43pm
TriRacer27 wrote:
So by 2026 we may have 10 factory brands, each with 2+ riders, that's the whole main event.    Honda Kawasaki KTM Husky Gas Gas Yamaha...

So by 2026 we may have 10 factory brands, each with 2+ riders, that's the whole main event. 

 

Honda

Kawasaki

KTM

Husky

Gas Gas

Yamaha

Suzuki

Beta

Triumph

Ducati

Snail wrote:

I’d take a bet that Suzuki will not be a part of the list. 

Trading Suzuki for Triumph, Beta, Ducati, Husky and GasGas isn’t a bad deal. 9 manufacturers instead of the old big 4 is a good thing.

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WarrenMX
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1/22/2024 6:23pm
Looks badass.  The only thing I don't like is that texture on the aluminum frame.  It won't allow for the factory semi polished look, and it...

Looks badass.  The only thing I don't like is that texture on the aluminum frame.  It won't allow for the factory semi polished look, and it won't cleanup easily.  I prefer this finish on the frame:

Screenshot 2024-01-22 at 11.07.55%E2%80%AFAM

Screenshot 2024-01-22 at 11.09.06%E2%80%AFAM

I'm not a Honda fan boy, still have yet to own one, but good lord, they are good looking bikes! 

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Broseph
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1/22/2024 6:38pm

Anyone else a bit disappointed that Ducati didn't go for a carbon monocoque, ala MotoGP? Rationale: parts integration, stiffness management...

It could bring in some new sponsors too.

IMG 3781 1

 

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The Shop

dylon291
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1/23/2024 2:39am
-MAVERICK- wrote:

disbanded wrote:

That's obviously concrete

Pretty disappointed with the way that head looks. Did they toss in sand with the mold? Even the motor mount has flaws in there milling of it

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aees
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1/23/2024 3:24am
-MAVERICK- wrote:

disbanded wrote:

That's obviously concrete

dylon291 wrote:
Pretty disappointed with the way that head looks. Did they toss in sand with the mold? Even the motor mount has flaws in there milling of...

Pretty disappointed with the way that head looks. Did they toss in sand with the mold? Even the motor mount has flaws in there milling of it

Agree, that does not look like up to pair with Ducati standard. Makes it feel like someone forgot the bike needed an top end for the launch, and 3d printer was the only option.

Wonder if that bike could even start if they tried.

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-MAVERICK-
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1/23/2024 8:02am
dylon291 wrote:
Pretty disappointed with the way that head looks. Did they toss in sand with the mold? Even the motor mount has flaws in there milling of...

Pretty disappointed with the way that head looks. Did they toss in sand with the mold? Even the motor mount has flaws in there milling of it

I think the bikes that were shown are prototypes. 

5
Beagle
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1/23/2024 8:16am
-MAVERICK- wrote:

I think the bikes that were shown are prototypes. 

Given Ducati statement that the bike will enter production around 18 months from now (mid to late 2025), that sounds about right 👍 Tongue

Prototype first race in 2 months, a lot of things can happen between now (prototype racing) and then (production bike), which is pretty much the point for Ducati.

2
Pop Shmoke
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1/23/2024 10:20am

I’m excited for the new valve train. Wont make a difference on the 450 but on a 250 or 350 they should be able to have the highest revving bike in the class. Designs have mostly converged at this point where 250s are dohc, finger follower cam assemblies, center port exhaust, downdraft intake. Its cool to have something completely different to choose from.

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Village Idiot
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MXoN - a term used by newbs, goobs and rubes, PW, USA
1/23/2024 11:11am
dylon291 wrote:
Pretty disappointed with the way that head looks. Did they toss in sand with the mold? Even the motor mount has flaws in there milling of...

Pretty disappointed with the way that head looks. Did they toss in sand with the mold? Even the motor mount has flaws in there milling of it

-MAVERICK- wrote:

I think the bikes that were shown are prototypes. 

I'm thinking they might simply be mock-ups, not functioning prototypes.

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WFO Dave
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Greenville, TX, USA
1/23/2024 12:24pm

desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring.Screenshot 2024-01-23 at 2.20.59%E2%80%AFPM.png?VersionId=adlDAnxtWiScreenshot 2024-01-23 at 2.20.41%E2%80%AFPM

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KHNC
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East Flat Rock, NC, USA
1/23/2024 12:36pm

Need a Desmo 250 to jump small stuff. Even tho my old balls may be sagging a little, they arent as big as they used to be. Laughing

1/23/2024 1:21pm
WFO Dave wrote:
desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring.

desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring.Screenshot 2024-01-23 at 2.20.59%E2%80%AFPM.png?VersionId=adlDAnxtWiScreenshot 2024-01-23 at 2.20.41%E2%80%AFPM

I had questioned earlier are these hydraulic lifters? I guess I am asking if hydraulic there is no need for adjusting valve lash?

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alphado
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Erie, PA, USA
1/23/2024 1:42pm

What are the pros and cons of desmodromic?

The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used that often is that there are many more mechanical parts that needed careful maintenance. It also made the engine heavier and particularly in bike racing that can be a disadvantage.

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Chris_Buehler
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PORTLAND, CT, USA
1/23/2024 6:25pm

Do we know what it weighs?

Austin_Rankin
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Georgetown, KY, USA
1/23/2024 6:52pm
alphado wrote:
What are the pros and cons of desmodromic? The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used...

What are the pros and cons of desmodromic?

The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used that often is that there are many more mechanical parts that needed careful maintenance. It also made the engine heavier and particularly in bike racing that can be a disadvantage.

The weight that is added can be cleaned up with one, if not two titanium axles..

1
1/23/2024 7:00pm
-MAVERICK- wrote:

I think the bikes that were shown are prototypes. 

Beagle wrote:
Given Ducati statement that the bike will enter production around 18 months from now (mid to late 2025), that sounds about right 👍  Prototype first race...

Given Ducati statement that the bike will enter production around 18 months from now (mid to late 2025), that sounds about right 👍 Tongue

Prototype first race in 2 months, a lot of things can happen between now (prototype racing) and then (production bike), which is pretty much the point for Ducati.

Prototype bike racing in Italian nationals, maybe preproduction bike racing in 2025 MXGP, before production bike released late 2025.

Honda won't have anything competitive with the desmo valve, they'll have to release their CR-E!

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Village Idiot
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1/23/2024 7:07pm

If these engines get any taller they'll be taking off the top of the "gas tank" to access the valve train.

 

image-20240123220631-1

1
1/23/2024 7:12pm
If these engines get any taller they'll be taking off the top of the "gas tank" to access the valve train.  

If these engines get any taller they'll be taking off the top of the "gas tank" to access the valve train.

 

image-20240123220631-1

Low center of gravity be damned!

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soggy
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1/23/2024 8:46pm
alphado wrote:
What are the pros and cons of desmodromic? The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used...

What are the pros and cons of desmodromic?

The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used that often is that there are many more mechanical parts that needed careful maintenance. It also made the engine heavier and particularly in bike racing that can be a disadvantage.

The weight that is added can be cleaned up with one, if not two titanium axles..

Taking weight away from the axles won’t do anything for the center of gravity. 

4
1
1/23/2024 8:50pm
alphado wrote:
What are the pros and cons of desmodromic? The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used...

What are the pros and cons of desmodromic?

The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used that often is that there are many more mechanical parts that needed careful maintenance. It also made the engine heavier and particularly in bike racing that can be a disadvantage.

The weight that is added can be cleaned up with one, if not two titanium axles..

soggy wrote:

Taking weight away from the axles won’t do anything for the center of gravity. 

It will reduce the moment of inertia, and raise the center of gravity!

JackLHyde
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Nice Oak, DE
1/24/2024 4:00am
alphado wrote:
What are the pros and cons of desmodromic? The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used...

What are the pros and cons of desmodromic?

The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used that often is that there are many more mechanical parts that needed careful maintenance. It also made the engine heavier and particularly in bike racing that can be a disadvantage.

What would they use the higher revs for? 3-speed transmission?

1
Austin_Rankin
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Georgetown, KY, USA
1/24/2024 4:41am
soggy wrote:

Taking weight away from the axles won’t do anything for the center of gravity. 

I really don’t know how to say this other than saying this but, all this talk of this whole weight thing. Is non sense, have you seen how many championships and titles in on road racing they have since that valve-train was introduced? It speaks for itself, ole dirt bikin’s center of g spot ain’t ever gonna notice it’s even there.

4
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OldTech
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Decatur, AL, USA
1/24/2024 5:06am
WFO Dave wrote:
desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring.

desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring.Screenshot 2024-01-23 at 2.20.59%E2%80%AFPM.png?VersionId=adlDAnxtWiScreenshot 2024-01-23 at 2.20.41%E2%80%AFPM

I had questioned earlier are these hydraulic lifters? I guess I am asking if hydraulic there is no need for adjusting valve lash?

I had a Ducati tech friend work out of my place for extra cash. There are twice as many shims of multiple types,and he would install a wedge/tool in there and spin the motor with a breaker bar and bang ,parts would fall out! Also,valve "clearances "are set at top and bottom...

1
1
yz133rider
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Location
Avondale, PA, USA
1/24/2024 5:26am
alphado wrote:
What are the pros and cons of desmodromic? The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used...

What are the pros and cons of desmodromic?

The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used that often is that there are many more mechanical parts that needed careful maintenance. It also made the engine heavier and particularly in bike racing that can be a disadvantage.

JackLHyde wrote:

What would they use the higher revs for? 3-speed transmission?

You could leave it in 2nd, have lower gearing and still pull to the moon without giving up any mph while pulling harder from the gearing.

1
1/24/2024 5:29am
alphado wrote:
What are the pros and cons of desmodromic? The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used...

What are the pros and cons of desmodromic?

The advantage is that the engines could rev higher. The disadvantages and why it hasn't been used that often is that there are many more mechanical parts that needed careful maintenance. It also made the engine heavier and particularly in bike racing that can be a disadvantage.

JackLHyde wrote:

What would they use the higher revs for? 3-speed transmission?

yz133rider wrote:

You could leave it in 2nd, have lower gearing and still pull to the moon without giving up any mph while pulling harder from the gearing.

If you're not going to change gear, why not get a Stark?

5
yz133rider
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1/24/2024 5:36am
JackLHyde wrote:

What would they use the higher revs for? 3-speed transmission?

yz133rider wrote:

You could leave it in 2nd, have lower gearing and still pull to the moon without giving up any mph while pulling harder from the gearing.

If you're not going to change gear, why not get a Stark?

Why does anything other than a stark exist I suppose.

3
1/24/2024 5:37am
yz133rider wrote:

You could leave it in 2nd, have lower gearing and still pull to the moon without giving up any mph while pulling harder from the gearing.

If you're not going to change gear, why not get a Stark?

yz133rider wrote:

Why does anything other than a stark exist I suppose.

Brand loyalty?

7

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