Tyre heresy!?

A few weeks ago, I decided to change back to my alloys and summer tyres (replacing my winter tyres and steel wheels).

As I put the fronts back on, I noticed the tyres had worn a lot in the middle - not as much at the edges - and were very nearly due for replacement. So I did a little reading around and ended up plumping for some Goodyear EfficientGrip, replacing the Pirelli PZero Rossos (both 225/45 R17).

I've been pleasantly surprised with the performance of the EfficientGrips so far. They're quiet and seem just as grippy as the Pirrellis so far. I'm no boy racer but I still have the occasional tyre scrabble when jumping onto a busy roundabout or whatever... and the Goodyear EGs seem to slip less in these circumstances than the Pirrellis did.

Haven't done much driving in the wet with them yet, but they've behaved very well in the few days of driving in rain that I've had with them so far.

Driving on 205/55 R16 winter tyres taught me that I didn't really miss the extra performance of wider, lower profile summer tyres... so I thought switching to a low rolling resistance tyre would help me get better fuel economy. So far, that's proved correct - I'm getting pretty much the same MPG as with my winter tyres (i.e. about 3-4 mpg better than the Rossos), despite them being the same wider, lower profile fitment.

I know that the Goodyear F1 Asymmetrics often get recommended here, but if you're never going to use the F1s to their full potential, I reckon the EfficientGrip model offers a good compromise between improved fuel consumption and grip in dry/wet.

As for the uneven wear, the tyre place recommended I drop the pressure in the fronts by 1 or 2 psi as wear in the middle of the tread often indicates too high a pressure, apparently.
I was following the recommended value inside the fuel flap - 35psi for low load - but their computer had 33psi recommended for my car... interesting. :think:
 

toot

Active Member
Jan 14, 2010
146
0
Kalmar, Sweden
The worn in the middle of the tire could also come from to low pressure. As most type of low profile tires have harder/stronger edges, the middle will expand more outwards with speed and cause more worn in the middle.

Sorry about the english, come from sweden :)
 

AndrewJB

Friend to SEAT UK & Cupra Racing
Aug 16, 2007
11,175
485
Maranello
Does anybody know what the correct PSI Should be For 18" Wheels Running 225/40/R18'S?

Ive noticed 3 of my tyres are wearing in the middle more
 

jezyg

Active Member
Feb 21, 2003
2,329
28
A few weeks ago, I decided to change back to my alloys and summer tyres (replacing my winter tyres and steel wheels).

As I put the fronts back on, I noticed the tyres had worn a lot in the middle - not as much at the edges - and were very nearly due for replacement. So I did a little reading around and ended up plumping for some Goodyear EfficientGrip, replacing the Pirelli PZero Rossos (both 225/45 R17).

I've been pleasantly surprised with the performance of the EfficientGrips so far. They're quiet and seem just as grippy as the Pirrellis so far. I'm no boy racer but I still have the occasional tyre scrabble when jumping onto a busy roundabout or whatever... and the Goodyear EGs seem to slip less in these circumstances than the Pirrellis did.

Haven't done much driving in the wet with them yet, but they've behaved very well in the few days of driving in rain that I've had with them so far.

Driving on 205/55 R16 winter tyres taught me that I didn't really miss the extra performance of wider, lower profile summer tyres... so I thought switching to a low rolling resistance tyre would help me get better fuel economy. So far, that's proved correct - I'm getting pretty much the same MPG as with my winter tyres (i.e. about 3-4 mpg better than the Rossos), despite them being the same wider, lower profile fitment.

I know that the Goodyear F1 Asymmetrics often get recommended here, but if you're never going to use the F1s to their full potential, I reckon the EfficientGrip model offers a good compromise between improved fuel consumption and grip in dry/wet.

As for the uneven wear, the tyre place recommended I drop the pressure in the fronts by 1 or 2 psi as wear in the middle of the tread often indicates too high a pressure, apparently.
I was following the recommended value inside the fuel flap - 35psi for low load - but their computer had 33psi recommended for my car... interesting. :think:

I am the same never really push the car so having tyres that help with economy at the sake of a little less final grip makes sense TBH.

You are correct overinflation is the usual cause of excessive tyre wear in the centre. My tyres were set at 50Psi at the rear on ones side and 40 at the front!!! That was straight from the factory/PDi. Steering felt a wee bit too light.

I see you Nott's and Leics not East Leake/Loughbourgh area by any chance? :whistle:
 

Jedimaster65

Searching for a clear lap
Aug 13, 2007
786
0
Cheshire
Does anybody know what the correct PSI Should be For 18" Wheels Running 225/40/R18'S?

Ive noticed 3 of my tyres are wearing in the middle more

Hiya

I have same size.

It should be 32 Psi Front, 29 Psi Rear.

I have experimented higher and lower, but these (the recommended SEAT pressures) are spot on.
 
Jun 5, 2008
511
0
Leeds
if the tyres are wearing in the middle then they are over inflated, wearing at both edges would be under inflated/tracking
 
I see you Nott's and Leics not East Leake/Loughbourgh area by any chance? :whistle:

My daily commute takes me cross country to avoid Leicester, then up the A46 and the A606 into Nottm, but if I'm going to East Midlands Airport or near there I often cut across the A6006 so pass near to East Leake then, yes, I think.

You've probably driven past me on the A46 thinking "how come that FR is going so slow?" when I've been trying to hypermile my way to a 400 mile tank, lol. :)
 

jezyg

Active Member
Feb 21, 2003
2,329
28
My daily commute takes me cross country to avoid Leicester, then up the A46 and the A606 into Nottm, but if I'm going to East Midlands Airport or near there I often cut across the A6006 so pass near to East Leake then, yes, I think.

You've probably driven past me on the A46 thinking "how come that FR is going so slow?" when I've been trying to hypermile my way to a 400 mile tank, lol. :)

lol I hypermile as well get annoyed if I don't not Avg 50 on my way to work!! I am usually in that area but the Leon is swapped for a Focus Estate with some blue flashing lights as I work out of East Leake.
 

AndrewJB

Friend to SEAT UK & Cupra Racing
Aug 16, 2007
11,175
485
Maranello
Hiya

I have same size.

It should be 32 Psi Front, 29 Psi Rear.

I have experimented higher and lower, but these (the recommended SEAT pressures) are spot on.

I set mine to 32psi all around

2 front and rear left and wearing in middle, Rear right is fine
 
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