FE/FC Changing Tire Size on Computer/Dash

It's similar to the KTM procedure posted on Warp 9's web site, but I had to figure out the differences to get it to work.
http://www.warp9racing.com/how-to/changing-wheel-size-on-a-ktm-computer/

1. You have to unplug the 3-wire connector below the dash that is black/brown/red.
2. Press any button to wake-up the computer if it isn't already on.
3. Press and hold the left and right button together for 3 seconds until you see units.
4. You need to wait 3 more seconds until the 'tire' menu shows up
5. Now press left to go to a smaller tire (number is in millimeters)
Or press the right button for a larger tire

Here are some wheel dimensions (let me know other sizes if you know):
17" = 1882mm
21 = 2250mm

This menu is also how you change the units (MPH/KM), 12/24 Hours, etc., but these procedures are in the manual (so RTFM).

Would like the 19" dimension if you have it.

Should be about 2066mm.