When should you change your tires?

[Zoyous]

Just bought my first truck the other day, and after a few runs I'm noticing some tire wear. How long can you let it go before you get new tires? Will it noticeably affect handling if they are really worn?

[Ryu]

Yes, if you let the damage to your tires accumulate you will notice the handling get worse; especially when it's raining.

You don't need to "change" them, rather, just repair them (along with every other part) when you visit a Repair Shop. I usually visit the Repair Shop after every delivery with the exceptions being the towns which do not have one available.

[~{DCMT}~ComaWhite12~]

Originally posted by ~{DCMT}~ Ryu:

Yes, if you let the damage to your tires accumulate you will notice the handling get worse; especially when it's raining.

You don't need to "change" them, rather, just repair them (along with every other part) when you visit a Repair Shop. I usually visit the Repair Shop after every delivery with the exceptions being the towns which do not have one available.

I thought the tires had no effect yet other than a % in the list.
I know that changing brands of tire has no effect, so I assumed it is the same with damage. But being I repair after every trip, I may not know any effects. Haha.

[Ryu]

Originally posted by ~{DCMT}~ComaWhite12~:

Originally posted by ~{DCMT}~ Ryu:

Yes, if you let the damage to your tires accumulate you will notice the handling get worse; especially when it's raining.

You don't need to "change" them, rather, just repair them (along with every other part) when you visit a Repair Shop. I usually visit the Repair Shop after every delivery with the exceptions being the towns which do not have one available.

I thought the tires had no effect yet other than a % in the list.
I know that changing brands of tire has no effect, so I assumed it is the same with damage. But being I repair after every trip, I may not know any effects. Haha.

Ya, in both ATS and ETS2 if I let my tires get more than 3% damage I feel it slipping when it's raining.

[room217au]

Seeing that a lot of folks here talk about 'realism' I thought I'd throw in my 2c worth about that.
This thread highlights exactly two of the things that's bugged me about this and ETS2 since day #1.
3% - even 10% - wear on a tyre is not going to affect its performance in any way, shape or form. 'Boots' are not repaired, then re-fitted to the truck. Boots are just replaced. Sure, they 'cold-cap' tyres as re-treads and re-sell them, but that doesn't happen at the mechanics while-you-wait.

I reckon the wear-and-tear for tyres should not start until at least a value of 30% has been reached.
Perhaps a colour-grade system when you go to repair your truck as opposed to a prercentage system. The game could still use percentiles, but just display green yellow or red in terms of how urgent that part requires attention.

And, no matter what repairs are carried out.. even a complete drive-train change-out .. the whole process takes literally no time at all. There should be some kind of time-advancement applied to truck repairs.

[~{DCMT}~ComaWhite12~]

Agreed on the above.
Anything short of a minor repair should take many hours if dot a full 24. That would make driving safely FAR more critical. If you crack up your truck not only are you out of pocket, byt you may get no pay on the job for being late as well.

[ᅚ]

Right on, room217au!

[mr_bman]

Well some tires have a lower profile which theoretically should make the truck handle turns better - but I've never been able to tell any difference other than looks. If you were thinking of buying new tires. There are some modded tires which removed the rolling resistance - and again-- couldn't tell any difference. But as was said you just get them repaired at the repair shop. If you look around for some mods some have raised white letters on them and they look good.

[room217au]

Originally posted by ;360670708777958331:

Well some tires have a lower profile which theoretically should make the truck handle turns better - but I've never been able to tell any difference other than looks. If you were thinking of buying new tires. There are some modded tires which removed the rolling resistance - and again-- couldn't tell any difference.

There is a section in the physics.sii file which provides parameters for a range of wheel and suspension changes:
[..]
# friction parameters
# stiffness of tyre material
bristle_stiffness_longitudinal_factor: 1.0
bristle_stiffness_lateral_factor: 1.0
# damping of tyre deformation
bristle_damping_longitudinal_factor: 1.0
bristle_damping_lateral_factor: 1.0
# coefficients related to wheel slipping
slip_longitudinal_factor: 1.0
slip_lateral_factor: 1.0
[..]
(The # simply means "comment" and the program ignores anything on that line after it)

That is, of course, not the whole file. There are other parameters to do with clutch, flywheel, air-resistance, brake heat, etc etc. All of those parameters would certainly be related to the tyre section pasted above.
The values of 1.0 would simply be fed into a formula. When tyres start to wear, one or more of these values may be multiplied by a certain value (eg. 0.75), and therefore affect the handling of the truck.. giving the impression that the tyres are slipping, wearing, whatever.

These parameters I mention apply to all tyres on all trucks. It will also apply to mods which have a lower priority, unless a mod is in place that includes a changed physics.sii files with some or all of the above things altered in some way.

[HGV Driver]

Originally posted by room217au:

Seeing that a lot of folks here talk about 'realism' I thought I'd throw in my 2c worth about that.
This thread highlights exactly two of the things that's bugged me about this and ETS2 since day #1.
3% - even 10% - wear on a tyre is not going to affect its performance in any way, shape or form. 'Boots' are not repaired, then re-fitted to the truck. Boots are just replaced. Sure, they 'cold-cap' tyres as re-treads and re-sell them, but that doesn't happen at the mechanics while-you-wait.

I reckon the wear-and-tear for tyres should not start until at least a value of 30% has been reached.
Perhaps a colour-grade system when you go to repair your truck as opposed to a prercentage system. The game could still use percentiles, but just display green yellow or red in terms of how urgent that part requires attention.

And, no matter what repairs are carried out.. even a complete drive-train change-out .. the whole process takes literally no time at all. There should be some kind of time-advancement applied to truck repairs.

I`ve just been OFF the road for 3 days in RL while they fit NEW front springs on my truck.I totally agree with you..

[room217au]

Originally posted by HGV Driver:

I`ve just been OFF the road for 3 days in RL while they fit NEW front springs on my truck.I totally agree with you..

Absolutely. Trailing arms and rockerboxes replaced both sides took 4 days.

[Zoyous]

Thanks for the explanations everyone. I see now the "repair" meter is just an image of the truck that fills up from the bottom to the top, just like the "fatigue/sleep" meter. Since it starts off at the bottom I thought it was specifically indicating tire wear! That's too bad that it's just folded in as a general repair, but I guess SCS had to draw the line somewhere and if they decided to have tires wear out independent of the rest of the truck, then why not belts... gearbox... brakes... etc.

[room217au]

Well, I think one has to draw the line somewhere in terms of "what is designated as a repairable thing". Engine, trans, tires, lubricants. That's fine, but it could be handled better without much of a change to the game code.

[Danky King]

I hope they overhaul the damage system someday. Parts should wear out individualy, like the clutch for example. Sometimes I'll ride the clutch in 7th with a full load, or I'll slip it bad to get up to speed. Then I feel guilty because it should wear it out by now, so I catch myself doing it and shift down. Sometimes you have to pretend for a more realistic experience I guess.