7mm worn and new tyre across an axle...would you?

7mm worn and new tyre across an axle...would you?

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Discussion

eltax91

Original Poster:

10,325 posts

221 months

Tuesday 30th August 2022
quotequote all
hi folks

Wife's Ionic picked up a huge nail in the shouldher of a front tyre at the weekend. Both fronts were new in december last year, Goodyear Efficient Grip 2's. She does predominently local miles with the odd long distance client visit thrown in.

A new tyre is approx 8mm? These have both worn evenly to 7mm. Would you:-

A. Buy 1 don’t worry about it
B. Buy 2 and try to get some cash back for the other as a part worn

Am i just being paranoid about such a small difference?

SAS Tom

3,668 posts

189 months

Tuesday 30th August 2022
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I wouldn’t worry, doubt it’ll make a difference

DodgyGeezer

44,042 posts

205 months

Tuesday 30th August 2022
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option A for me - I'd have thought you are being a tad paranoid (nothing wrong with that mind!)

Pistonheader101

2,206 posts

122 months

Tuesday 30th August 2022
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Next to no difference on a standard car

e-honda

9,473 posts

161 months

Tuesday 30th August 2022
quotequote all
I think you should buy 5 and replace all the wheels as well just incase

snotrag

15,184 posts

226 months

Tuesday 30th August 2022
quotequote all
At that level of wear imblanc, 1 new tyre will be fine. Stick the new one on the front left and itll even out pretty quick.

BckFlash

720 posts

216 months

Tuesday 30th August 2022
quotequote all
I know punctures are few and far between (although some people seem to like driving through nail factories), but when I had this, I got both tyres changed but kept the good one 'just in case'. The good one had 8k miles on it but still a decent tread.

As long as you keep the same brand / make of tyre, 1mm wear wouldn't bother me!

Scrump

23,420 posts

173 months

Tuesday 30th August 2022
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Buy 1 new one.

Krikkit

27,418 posts

196 months

Tuesday 30th August 2022
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Agree with everyone so far - just buy one.

From the title I thought you had an off-roader with 7mm of wear on one side.

POIDH

1,802 posts

80 months

Tuesday 30th August 2022
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e-honda said:
I think you should buy 5 and replace all the wheels as well just incase
New car time IMO. Can't be too cautious.

Roger Irrelevant

3,219 posts

128 months

Tuesday 30th August 2022
quotequote all
FWIW I had to replace a tyre on my Volvo that was quite a bit more worn than that - probably 3 or 4mm gone - and the chap at the (very reputable) local tyre place said he'd not worry about it for a second. All those tyres that were on it at the time are now long gone and the car has suffered no ill effects.

Funk

26,813 posts

224 months

Tuesday 30th August 2022
quotequote all
snotrag said:
At that level of wear imblanc, 1 new tyre will be fine. Stick the new one on the front left and itll even out pretty quick.
Was about to say exactly this.

QJumper

3,238 posts

41 months

Tuesday 30th August 2022
quotequote all
Recently had the same with a puncture on one of new set of Crossclimates bought last November. I just replaced the damaged one and thought no more about it.

eltax91

Original Poster:

10,325 posts

221 months

Tuesday 30th August 2022
quotequote all
Thanks folks. 1 new tyre purchased.

Then it's off to Hyundai to trade it in for a new one with matching rubber hehe

Scrump

23,420 posts

173 months

Tuesday 30th August 2022
quotequote all
eltax91 said:
Thanks folks. 1 new tyre purchased.

Then it's off to Hyundai to trade it in for a new one with matching rubber hehe
Drive carefully on those mismatched tyres!

996Keef

435 posts

106 months

Tuesday 30th August 2022
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New matching tyre and do a burnout on it to take the 1mm off

vikingaero

11,920 posts

184 months

Tuesday 30th August 2022
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I measured the tread depth of some Michelin Primacy 4's when new and they were only 7mm.

Panamax

6,206 posts

49 months

Tuesday 30th August 2022
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The only significant point here is about your differential. Where unmatched tyres are fitted on the same driven axle the diff will be constantly turning to balance out the difference. (This can be any axle in some 4WD installations.)

With an "open" diff this is usually immaterial. But if you have an LSD it may be constantly "working" which can lead to heat and accelerated wear.

GreenV8S

30,857 posts

299 months

Tuesday 30th August 2022
quotequote all
Panamax said:
The only significant point here is about your differential. Where unmatched tyres are fitted on the same driven axle the diff will be constantly turning to balance out the difference. (This can be any axle in some 4WD installations.)
We have a lot of roundabouts round here and it's renowned for causing uneven tyre wear.