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So, the 190/55 is supposed to have a dramatic (bad) effect on the traction control? Hmmm. The 180/60's circumference changes as the center wears. Its circumference at one point will equal a new 190/55 on the 5.5" rim yet the TC still works. I doubt the effects are anywhere near as dramatic as people try to claim. I doubt most people saying how bad it is have never had a 190/55 on their 959.
 

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So, the 190/55 is supposed to have a dramatic (bad) effect on the traction control? Hmmm. The 180/60's circumference changes as the center wears. Its circumference at one point will equal a new 190/55 on the 5.5" rim yet the TC still works. I doubt the effects are anywhere near as dramatic as people try to claim. I doubt most people saying how bad it is have never had a 190/55 on their 959.
It was Jarel J., the GM of Ducati Omaha, that first identified this issue on the 899 site and it wasn't a bad influence on TC that was raised. Simply that the reduction of the circuference would begin to trigger the intervention sooner as grip was gradually reduced.

i know that the BMW ECU will calculate the optimal throttle in addition to the TC as the tire wears to modulate the amount of torque applied to the tire as well and it was assumed that the Panigale system was equally as smart.
 

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I have a friend who tracks a 899 exclusivly with michelin tires and uses 190/55 and says they work great.
 

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I have a friend who tracks a 899 exclusivly with michelin tires and uses 190/55 and says they work great.
I am sure they do. With the DTC set to low intervention they likely work fine. However, the theory is that the TC is capable of detecting the tire is worn and will retard the power earlier on higher settings, so you are leaving torque on the table.

Conceptually, I am not sure why this is difficult to accept. The ECU takes readings from the wheel speed and determines if it should intervene. If those tolerances are not within certain parameters, it will act. It is only doing its job sooner.
 

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Discussion Starter #25
I agree with @Rinzlr and @sinjin. The modern TC systems are not reliant on tire circumferences to operate properly. I would say the main concern with changing a tire profile would be your basic geometry setup. But that can easily be compensated for. You will see some variation in total circumference between tire brands even though they are labeled as the same size.
 

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I have 190/55

Never had TC problems. Then again even with TC off, this bike doesnt snap or lose traction as easy as people think.

Currenlty have TC set at 2, ABS at 3 while riding around street.

I had a mate who have 180/50 Angels who did have the factory set TC light a little, simple adjusted it lower.

There are plenty of track riders running 190/60, 200/55 and 200/60 tires without TC problems.

I get more TC problems from wheelies............
 

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Discussion Starter #27
Curious as to exactly what is the "problem" or "negative effect" with the TC that people are reporting?
 

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Curious as to exactly what is the "problem" or "negative effect" with the TC that people are reporting?

With the OEM TC settings being high, the different tire size causes the TC to kick in earlier eg: when pulling away from lights quickly. The tire isnt losing traction thou.

Simple is to turn the TC down to 3 or 2


...or off and to learn to use throttle correctly.
 

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With TC Off, is it Actually OFF? Meaning, absolutely no interaction?
 

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From page 61 of the 959 manual:
"
DTC
The instrument panel displays DTC status as follows:
-
-
-
-
if DTC is active, DTC indication and the rectangle
with the Traction Control intervention level
number (1 to 8) will be displayed steady on;
if DTC is active, but system is in degraded
operation due to a fault, DTC indication and the
rectangle including the DTC intervention level
number, 1 to 8 (flashing); also the DTC warning
light starts flashing;
if DTC is disabled, DTC indication and the
rectangle with the steady symbol "- -";
if DTC is in fault or the Black Box is in fault, DTC
indication and the rectangle with the flashing "- -"
symbol; the DTC light turns steady on as well and
the corresponding error is displayed.
"
Page 66
"
In the case of minor differences, such as tires of a
different make and/or model than the OE ones, but
with the same size (rear = 180/60ZR17; front =
120/70 ZR17), it may be sufficient to select the
suitable level setting from those available in order to
restore optimal system operation.
If tires of a different size class are used or if the tire
dimensions differ significantly from the original tires,
it may be that the system operation is affected to the
point where none of the 8 available level settings will
give satisfactory results. In this case is it is advisable
to deactivate the traction control system.
"
 

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Discussion Starter #31
With the OEM TC settings being high, the different tire size causes the TC to kick in earlier eg: when pulling away from lights quickly. The tire isnt losing traction thou.
So this must be a significant change in the TC intervention point for it to be that noticeable.
 

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Discussion Starter #32
All set for most of the summer anyway! :)
 

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So this must be a significant change in the TC intervention point for it to be that noticeable.
without knowing the Ducati's algorithm for their TC settings its a wild guess at tops.


I think this topic is being made more complex than what it needs to be.....

Just adjust the TC lower if you change tires that arent 180/60. As I said before, the 899/959 isnt a bike that breaks traction like bigger brother
 

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without knowing the Ducati's algorithm for their TC settings its a wild guess at tops.


I think this topic is being made more complex than what it needs to be.....

Just adjust the TC lower if you change tires that arent 180/60. As I said before, the 899/959 isnt a bike that breaks traction like bigger brother
 

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Thought I'd add my 5 cents worth since I own a 959 & changed my stock Pirelli Rosso Corsa 180/60 (which was worn down to the steel threads) to a Pirelli Rosso III 190/55. I now have TC issues taking off, which could not be resolved by reducing the TC to it's lowest setting. I tried every TC setting which had no effect on TC kicking in every time I would take off from a stop, which in turn causes the bike to splutter when TC kicks in. I couldn't work out why this was occurring as the new 190/55 Rosso III circumference was somewhere between the original 180/60 Corsa circumference when it was new to worn.
 
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