I was going through the TCM tunes and found when I modify the tire spec and try to save the file I recieve a range error. Here are the screenshots:
Data for a 285/75/16 tire according to manufactor:






cal file, TCM details:



When I first open that .tun file and enter that section I see:



and that:


there must be a glitch somewhere, as soon as I correct the tire data I have a range error???