From the 2011 owner's manual...

[colacin]

Fun warning from Aprilia:
DO NOT SPEED RECKLESSLY. THE
VEHICLE GRIP ON THE ROAD IS SUB-
JECT TO LAWS OF PHYSICS WHICH
EVEN THE ATC SYSTEM CAN NOT
ELIMINATE.

And now a real question relating to the APRC system. The OM states:
IF THE VEHICLE IS FITTED WITH
TYRES OTHER THAN THOSE INDICA-
TED IN THIS USE AND MAINTENANCE
MANUAL, THE LEVEL SETTINGS OF
THE SYSTEM MAY NEED TO BE
MODIFIED IN ORDER TO OBTAIN THE
SAME BEHAVIOUR AS BEFORE.

So i presume if you make ride-height changes you'd also have to do this? How is it done?

[Quarantine]

no, ride height has no affect on aTC.
They are referring to overall circumference of tyre

[DuctTape]

The OEM TC on the Ducati 1198 is the same way. The TC was designed for a particular type and size of tire.

[jrflanne]

HEADLINE...
APRILIA ATC SYSTEM ELIMINATES THE LAWS OF PHYSICS...

I just thought it was a funny play on words.

[kadidlehopper]

The OEM TC on the Ducati 1198 is the same way. The TC was designed for a particular type and size of tire.

My understanding is that if you put on different circumference/profile tires, then you do an operation that involves putting the computer into a "learning" mode and ride the bike a while and the computer readjusts the TC parameters.

At least that's the way I understand it. Could very well be incorrect, though.

[Quarantine]

My understanding is that if you put on different circumference/profile tires, then you do an operation that involves putting the computer into a "learning" mode and ride the bike a while and the computer readjusts the TC parameters.

At least that's the way I understand it. Could very well be incorrect, though.

on the RSV4 APRC, if and when you change a tire.
you go to menu, select calibrate. Ride off in 2nd gear at around 40km/h + or - 2 km/h for 10 seconds. On the LCD you will see a flashing "Calibrating" once set, it will revert to normal screen.

On the Ducati there is no calibrating option. The manual states that it is best to use OEM tires or replace with a tire as close as possible to OEM measurements. Or if you go with a different size tire you might need to change the traction level higher or lower in order to achieve same desired traction as with OEM tires

[colacin]

I skipped the calibration section of the owner's manual that Quarantine refers to when changing tire sizes - this is a different warning that specifically refers to the "level" of the bike- which leads me to believe that changing rear shock length or front fork height can have an impact on the system.

anyone have a service manual and can check?

[kadidlehopper]

I skipped the calibration section of the owner's manual that Quarantine refers to when changing tire sizes - this is a different warning that specifically refers to the "level" of the bike- which leads me to believe that changing rear shock length or front fork height can have an impact on the system.

anyone have a service manual and can check?

IMO, what they're referring to is the "level" of intervention that's applied in a given situation. It doesn't appear to me that they're talking about the physical leveling, or ride height, of the bike.

I think that the paragraph you're refering to is just saying that the calibration may be necessary if/when you change tires on the bike.

I'm sure that someone who is more versed on this subject than I am will be able to give you a definite answer, though.

Good luck and ride safe.

[Quarantine]

BY LEVEL SETTING they are referring to Traction control level. 1 2 3 4 5 6 7 8

[colacin]

Now that I read it again I think you're right... I was over-complicating the system, it seems.

[Phunky Phish]

You can calibrate the system if you change tire size or gearing by front or rear sprocket change.

[warren kiernan]

can this be done on the non aprc bikes ? i tryed today but alas i couldnt find how or where to do it . cheers

[illtal]

can this be done on the non aprc bikes ? i tryed today but alas i couldnt find how or where to do it . cheers

no it cannot

[Chris_Mag]

The calibration procedure is specifically to adjust the APRC functions (for the bike to learn the ratio of the rolling circumferance of the tires), so no, you cannot calibrate a non APRC bike electronically in the way this post describes.