14’ 1199R 200/55 to 200/60 rear

Can’t find a 200/55 rear slick. What geometry disasters if any am I encountering if throwing the 60 on the rear? 10mm or so in height in the rear compared to 55 tire correct?

Tire size affects the operation of the Ducati Traction Control system.
Available clearance to the swingarm should also be checked.

I switched from a 200/55 to a 200/60 Pirelli Track Day tire last year on my 2012 1199. No clearance issues at all, still about 2cm from the fender. I haven't noticed any real changes to the TC over 3 track days. Think the TC is at level 2. For what it's worth I run intermediate.

Geometry wise there should be little to no difference, especially since you are running a slick tire. The 60 series will be slightly larger in circumference, but not enough to bother the traction control or ABS since the traction control senses the actual rear wheel speed, not referencing the front tire speed, and the ABS senses the wheel speed of each tire independently in a split system. Your speed reading with the 60 series tire might actualy be more accurate than the 55 series since it is slightly larger and the speedometer always reads a little high with the 55 series tire. Speed is taken off the rear wheel sensor, not the transmission, so gearing changes have no affect on the accuracy of the speedometer, though tire size changes will affect it. The diameter will increase by .787 inches total height, or about .4 inches in radius. and the circumference will increase by a mere 2.4 inches from 80.6 inches to 83 inches, or about about 3%, which is right in line to correct the speedometer mismatch with a 55 series tire, which just happens to be about 4 mph at 100 mph. The biggest factor is going to be the tire carcass characteristics compared to a street tire. It may be rounder and harder/softer than whatever brand of street tire you are using, so flicking into a corner may be easier or harder depending on the shape, and how the tire behaves when it encounters irregularities or is loaded/unloaded will be different from the street tire you are running. All else being equal, I see absolutely no problem with running a 60-series slick for the track, then changing back to your stock tires for the street.

One note, if you look at the tail lights of the bike picture in the attachment Shazaam put in his post, it is not an 1199.. probably a V4 with Termi under-seat exhaust. The v4, v4s and v4r uses a different computer system than the earlier 1199's did. It has a different set of parameters including 6-axis IMU to use in determining the traction control functions of the V4 series of bikes.

Sheikh said:

One note, if you look at the tail lights of the bike picture in the attachment Shazaam put in his post, it is not an 1199..

Click to expand...

You're right, It's Troy Bayliss on a 1098R in 2008.

Did Ducati have the DTC in 2008?

yes

Beefmaster95 said:

Can’t find a 200/55 rear slick. What geometry disasters if any am I encountering if throwing the 60 on the rear? 10mm or so in height in the rear compared to 55 tire correct?

Click to expand...

I used 60 profile Pirellis and it helped with understeer, you can calibrate the tire in the setup and the DTC should be good to go. The actual diameter should be measured fitted and inflated on the rim. Some 55's are the same as 60's from other makes.