Diablosport Forums

U7186
V.9r07

I have adjusted the tire size both ways. But its stuck on 36in. If I go back to stock the speedo goes back to stock. If I put any size tire it always reads 36 (the other is 20 rim etc i cant remember the aspect and width).

What do I do?

Thanks!

Ok ...so what I'm reading is this is "normal" and don't use height, it doesn't work. I tried a few but 270/75 16 is where I'm at now and only off be 1 mph at 60...i gave up for now, tired of pulling over and changing it and waiting for the upload.

I tried:
285/75 16
275/75 16
280/75 16
270/75 16 (on now)
265/76 16 (will try later) a weird number but I read it on here

DiabloSport...I'm sure you've heard this before but why can't i just put in tire Height and it can't remember it! My super chips always remembered the height anytime I went into the programer it was where I last set it. my .02

You should look into updating that tool i believe this was fixed years ago...