Why do people use mismatched tires?

[Magog]

I've heard it mentioned a few times. Isn't more grip always better?

 

[coryclifford]

Induce understeer.

 

[TonyJZX]

Induce oversteer.

 

[LeGeNd-1]

GT physics does not take into account differences in tyre width when it comes to calculating grip. Especially apparent in MR cars, which have wider tyres in the rear (which gives more grip even with same compound). The game treats both front and rear as having equal grip, so most MR road cars in the game are more oversteery than it should be. Using staggered tyres allows a more realistic driving experience without resorting to unrealistic tunes to cure the band handling characteristics.

 

[Magog]

GT physics does not take into account differences in tyre width when it comes to calculating grip. Especially apparent in MR cars, which have wider tyres in the rear (which gives more grip even with same compound). The game treats both front and rear as having equal grip, so most MR road cars in the game are more oversteery than it should be. Using staggered tyres allows a more realistic driving experience without resorting to unrealistic tunes to cure the band handling characteristics.

Do we know this for a fact? Seems like a major oversight. Does it give faster lap times?

 

[TonyJZX]

I dont think you're able to change tyre widths.

I'd like it if went as far down as Forza and even Horizon where you can specify widths... eg. my old car used to have 255/40/18 rear, 235/45/18 front and you can then go to 265/40/18 rears or to 245/40/18 rears etc.

Whether this kind of detail makes a difference is another story.

 

[GTPorsche]

I dont think you're able to change tyre widths.

I'd like it if went as far down as Forza and even Horizon where you can specify widths... eg. my old car used to have 255/40/18 rear, 235/45/18 front and you can then go to 265/40/18 rears or to 245/40/18 rears etc.

Whether this kind of detail makes a difference is another story.

Tire compounds...

 

[rex1825]

I dont think you're able to change tyre widths.

I'd like it if went as far down as Forza and even Horizon where you can specify widths... eg. my old car used to have 255/40/18 rear, 235/45/18 front and you can then go to 265/40/18 rears or to 245/40/18 rears etc.

Whether this kind of detail makes a difference is another story.

...it does make difference, but most important is tire compound itself and pressure that car makes on that tire. Wider tire do mean more grip, but too wide won't help you a lot.

Regarding GT Sport, perfect example is X-Bow, it has same tire width front and rear, but front it is so agile that front goes as you please, and rear is just all over the place, so most of the time you reduce front tire grip by giving it lower tire compound (SH front, SS rear) it makes car much more drivable.

...regarding GTS not looking at tire width, not sure about that, sadly there is nothing we can test on, since you cannot change tire width at all. It doesn't count even rim size in GTS, while in GT6 it did make difference (although maybe some of the rims did fit wider tires back then).

 

[super_gt]

Induce oversteer.

Or reduce understeer in a heavily understeering car.

 

[Spongeinside]

I usually use harder front tires on fwd cars as they wear a bit slower and fwd cars eat front tires like crazy..

 

[Greycap]

GT physics does not take into account differences in tyre width when it comes to calculating grip. Especially apparent in MR cars, which have wider tyres in the rear (which gives more grip even with same compound).

Yes it does. This was accidentally proven by a bug years ago (GT5 or GT6, can't remember) when changing wheels reverted all four tyres to whatever the front tyres were. The loss of rear end grip was very noticable for cars with wider rear tyres, the bug was since fixed and the stock grip levels returned.

 

[Magog]

Yes it does. This was accidentally proven by a bug years ago (GT5 or GT6, can't remember) when changing wheels reverted all four tyres to whatever the front tyres were. The loss of rear end grip was very noticable for cars with wider rear tyres, the bug was since fixed and the stock grip levels returned.

Didn't they recently update the tire model? Couldn't they have fixed it?

 

[Auditore]

Some like to live dangerously

 

[Rinsky]

I do it because of the tire wear. The Gr.4 Cayman likes to chew up the front tires a lot faster than the rears so I will run RH in the Front and RM in the Rear. Wish I could keep it that way on pit stops like you could in GT6.

 

[Auditore]

It doesn't count even rim size in GTS, while in GT6 it did make difference (although maybe some of the rims did fit wider tires back then).

Wonder why they got rid of it,maybe they thought it wouldn't matter because of the BoP system?

 

[rex1825]

Wonder why they got rid of it,maybe they thought it wouldn't matter because of the BoP system?

As far as I remember, it didn't influence stock setting in lobbies, so if you set restriction to stock only, you could still change rims and get lighter car with better traction. That happen to me when I played with Alpine 1600s with friends, I was only one having custom rims on it, although they did look like stock ones, and my car had better traction, acceleration and top speed, not by much, but enough that I had advantage in winning every match.

 

[vxr58]

Better lift off oversteer in fwd and awd cars if the rear tyres are less grippy. The Civic seems to resist oversteer full stop.

 

[LeGeNd-1]

Yes it does. This was accidentally proven by a bug years ago (GT5 or GT6, can't remember) when changing wheels reverted all four tyres to whatever the front tyres were. The loss of rear end grip was very noticable for cars with wider rear tyres, the bug was since fixed and the stock grip levels returned.

Does it? I rarely change rims so I wouldn't have noticed that GT6 bug.

Regardless, even if GTS physics does take into account tyre widths, it's probably underaccounted. The XBOW is the easiest example where it would benefit from staggered tyres. Comparing the Assetto version to the GTS version it's much more closely matched with softer compounds in the rear.