[superdave]

Hi all,
I am reaching out to any AlfoOBD users who have 20" wheels.
Whilst making some changes to my car using AlfaOBD, I made a mistake a totally messed up my settings. I was having connection issues anyhow and didn't make a back up. It's all fixed now using a back up from a very similar car thanks to Jamie Shoesmith but I have one last thing to correct. Its the wheel circunference size in mm. I have 20" wheels whereas my mate has 19". There isn't much in it due to profile of tires but I'd like to know the correct value please if anyone out there knows it? Currently it's set to 2249mm but need verification that this is correct.
I've since learned by my mistakes and done a full data log and backed it up on my pc!

 

[Boomerang]

Alloy Wheel & Tyre Fitment Calculator. Offset, Tyre Stretch and Speedo Error | Will They Fit

Alloy Wheel & tyre fitment calculator - it calculates inset, poke, speedo error, tyre stretch and loads more.

www.willtheyfit.com

 

[superdave]

Thanks for the but I don't think it will give me the answer I am looking for. I've just checked as it's coming out at 2223mm which is not correct. I need someone who's using AlfaOBD with 20" wheels to confirm what setting they have please.

 

[shpuncik]

@superdave
All or Rear - 2249; Front Only - 2237

 

[superdave]

@superdave
All or Rear - 2249; Front Only - 2237

That's fantastic and exactly what I have on mine! I thought it had gone wrong because of the different sizes but you have confirmed it's all correct, thank you!