Front PS2 outer tread depth

[Davidonly]

Hi all,

my car drives fine, minimal tramlines, communicative steering etc. Seems that the outer edge of my PS2's wears prematurely. Tyre still legal but minimal tread left on the most outward water dispersing slots. If you look at a new PS2 tyre there is tread starts off really shallow there (the rubber has step like a wear indicator on the outer part of the pattern.

With 4.5mm lefy all over except for the last 1-inch of tyre it seems a shame (and costly) to change the tyre for that. Just passed MOT so tester happy.

Other tyres (my wife's car has Yokohama A43's on) don't have this depthe reduction.

Anyone else noticed this with PS2's, is it normal?

[Neil.D]

Hi mate.

Have you had your geometry checked recently?

If not, I had mine done 12months ago, adjustments were made. 12 months later and it is all out again. Only by a few degrees but enough to warrant the work.

By the sounds of it you could have too much toe in.

Neil

[0836whimper]

Driven hard, M3's do wear front tyre shoulders. I did this to a pair of PS2's after two weeks of driving round twisty French/Spanish mountain roads in the heat.



M3's are not that firmly set-up, which means they are great on UK roads, remaining composed on bumps and cambers, but, they do roll quite a bit, and especially when loaded up and accelerating out of a corner with slight understeer, tyre shoulders do take a battering.

Also, PS2's are also quite soft, and there is hardly any shoulder tread in the first place, I believe for performance reasons they try to avoid 'movable' blocks on the edges.

MOT's aren't interested in this part of the tyre though, so should pass even if pretty badly scrubbed.

[Nedz]

I have noticed this myself withPS2s,the tread depth on the outer edge is about half the depth of the centre of the tyre when new.Mine have passed several mots with the outer tread depth minimal as there is always plenty of tread on the rest of the tyre.
If a tester ever questioned this i would tell him to look at the tread depths on a new Ps2 and no doubt he would realise it is down to the tyre design and not uneven wear.

[fen7on]

Nedz said:

I have noticed this myself withPS2s,the tread depth on the outer edge is about half the depth of the centre of the tyre when new.Mine have passed several mots with the outer tread depth minimal as there is always plenty of tread on the rest of the tyre.
If a tester ever questioned this i would tell him to look at the tread depths on a new Ps2 and no doubt he would realise it is down to the tyre design and not uneven wear.

Garages are aware of tread difference; I've also complained about this in the past, I got some new tyres on the wife's car Monday & they had some PS3's in, so I had a look; unfortunately they're the same as the PS2's. In short, there's nothing wrong with them, they just don't look quite right.

[Davidonly]

Thanks all, nice to have my suspicion that this is a characteristic of car/tyre combo M3/PS2. The last MOT noted it as near legal minimum, which I know the tyre is not. Only that last block is 'worn' and its well less than 25% of the width. I guess the tighter blocks give better cornering feel and grip....

The worry is that an MOT centre might fail the car incorrectly, then you have the hassle of sorting that out. With the modern MOT on-line system you get the failure recorded automatically.

With all the big brother st these days its quite fraught when these things happen