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Old Jun 12th 2019, 02:49 PM   #1
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DEC menu Acceleration?

Guys took the Speciale to the track for the first time and while playing in the suspension settings it says Acceleration? Then it says grip or stability. So if I put it towards grip what does that actually mean? will it limit wheel spin by cutting power? And if that’s the case then does it mean you have full power potential when you go more towards stability? I don’t get this thinking. The same with mid corner grip or stability what is that doing? Cutting power if you go towards grip and full power with stability?
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Last edited by Somefun; Jun 12th 2019 at 05:12 PM.
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Old Jun 12th 2019, 05:02 PM   #2
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It’s just related to the suspension, it doesn’t touch the engine.

On acceleration the suspension damping adjusts to provide more grip or more stability as selected. That’s the idea anyway.

Assuming that we are talking about ”DES” not “DEC”
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Old Jun 12th 2019, 05:10 PM   #3
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Originally Posted by burton View Post
Itís just related to the suspension, it doesnít touch the engine.

On acceleration the suspension damping adjusts to provide more grip or more stability as selected. Thatís the idea anyway.

Assuming that we are talking about ĒDESĒ not ďDECĒ
Yeah sorry meant DES. Ok I was riding and every time I got to the straight and whacked it open I could tell she was limiting the acceleration. Maybe itís the wheelie control. I have it on race mode and set to 4 and tried 5. My TC is set to 1 so I didnít think that could be it?
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Old Jun 12th 2019, 05:39 PM   #4
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Originally Posted by Somefun View Post
Yeah sorry meant DES. Ok I was riding and every time I got to the straight and whacked it open I could tell she was limiting the acceleration. Maybe itís the wheelie control. I have it on race mode and set to 4 and tried 5. My TC is set to 1 so I didnít think that could be it?

Yes, it should be because of wheelie control

As TC in 1 is not limiting at all

But I donít really feel the interventions that much

The only way to feel them is when you turn them down, there you feel the difference
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Old Jun 13th 2019, 06:08 PM   #5
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Originally Posted by burton View Post
Itís just related to the suspension, it doesnít touch the engine.

On acceleration the suspension damping adjusts to provide more grip or more stability as selected. Thatís the idea anyway.

Assuming that we are talking about ĒDESĒ not ďDECĒ
wouldnt more grip equal stability?
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Old Jun 14th 2019, 12:23 AM   #6
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Originally Posted by nealeo View Post
wouldnt more grip equal stability?
Thatís what Iím saying. So then why would more stability mean less grip? Lol not really seeing it.
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Old Jun 14th 2019, 01:40 AM   #7
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Stability and grip is not the same. To add grip, you can mount large tyres.
The purpose of large tyres on a bike is not stability, but grip. Motorcycles are, by their nature more stable, during cornering, than cars can be, because of their ability to lean, and keep the centre of downward thrust over the centre-line of road contact of the tyres. This is why bikes can corner far faster than cars. Wider tyres mean a greater amount of road contact is maintained while this is done, meaning the bike can be cornered even harder.

This all will affect suspension. You need stronger springs and harder damping to keep grip, but softer to keep stability. I guess, that's what the system is doing.
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Old Jun 15th 2019, 09:27 AM   #8
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I am not a suspension guru, but I am guessing that when the suspension is set for “grip” the ecu will firm up the rear suspension in order to drive the rear down to create a larger contact patch which will give more traction. This is going to make the ride a little bumpy and less stable.
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Old Jun 15th 2019, 03:46 PM   #9
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Originally Posted by realnuts View Post
Stability and grip is not the same. To add grip, you can mount large tyres.
The purpose of large tyres on a bike is not stability, but grip. Motorcycles are, by their nature more stable, during cornering, than cars can be, because of their ability to lean, and keep the centre of downward thrust over the centre-line of road contact of the tyres. This is why bikes can corner far faster than cars. Wider tyres mean a greater amount of road contact is maintained while this is done, meaning the bike can be cornered even harder.

This all will affect suspension. You need stronger springs and harder damping to keep grip, but softer to keep stability. I guess, that's what the system is doing.
Bikes rarely corner faster than cars. F1 cars versus MotoGP bikes on the same course are much faster. Double the contact patch and aerodynamics are against the bike. Street comparisons can be much closer. A good article here with Italian machines:

https://www.motortrend.com/cars/duca...ducati-1198-s/

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