Worn tyre gives 20% better grip in the wet

Honest John Back Room » Motoring discussion
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Sat 13 Dec 2008 20:44
Worn tyre gives 20% better grip in the wet - moonshine {P}
I know that many Back Roomers are of the opinion that new tyres give the best grip and insist on replacing them every month :) So the news that a tyre gives 20% shorter stopping distance in the wet after 20,000 miles wear may require some of you to be seated :)

The tyre in question is from GoodYear:

www.mygoodyear.co.uk/pressReleases/optiGrip/

If anyone can find the full TUV report, please post a link. All I could get in search results was news items.

I was a bit concerned about this "maintain wet grip and aquaplaning performance at a high level" - aquaplaning performance? Err, sorry I dont want any aquaplaning and certainly not 'performance' aquaplaning :)
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Sat 13 Dec 2008 21:05
Worn tyre gives 20% better grip in the wet - pmh2
Sorry but I think that you have misinterpreted the article.

My reading of it is that it is 20% better than any competitor tyres after the same mileage.

ie performance has degraded from new, but not as badly as tyres from other manufacturers.

p




p
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Sat 13 Dec 2008 21:07
Worn tyre gives 20% better grip in the wet - M.M
Statements need reading carefully. The wet grip of the Goodyear doesn't improve as it wears... they are saying it is better than its competitors when it's worn.

I'm not surprised though. For years I've championed specific Goodyear tyres for amazing wet grip.... you can drive as if dry up to very high limits.

The first and best of these was the heavily V-grooved Ultragrip (I think that was the name) which was my favourite on the Xantia and then the Hydragrip which we have on the Xsara... and now this new development on the link.

Most tyres will grip in the dry well beyond sensible driving limits but it is in the wet you need all the help you can get.

David

Edited by M.M on 13/12/2008 at 21:12

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Sat 13 Dec 2008 21:18
Worn tyre gives 20% better grip in the wet - gmac
So the news that a
tyre gives 20% shorter stopping distance in the wet after 20 000 miles wear may
require some of you to be seated :)

I'd like to know what car that applies to because after 20k miles on the front of my car I'd be down to the wires.
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Sat 13 Dec 2008 21:22
Worn tyre gives 20% better grip in the wet - moonshine {P}
Car tested on was a VW Golf 2.0FSI

Thanks to those who have clarified the part about "measured against competitors" :)

I would still like to find the TUV report if anyone can help.
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Sat 13 Dec 2008 21:34
Worn tyre gives 20% better grip in the wet - George Porge
Car tested on was a VW Golf 2.0FSI

>>
20K miles, phew, how dirty were its numberplates :o/


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Sun 14 Dec 2008 08:18
Worn tyre gives 20% better grip in the wet - Brit_in_Germany
Most of the results are here:

optigrip.uniweb.be/index.php/how_do_we_test/en/

BIG
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Sun 14 Dec 2008 08:50
Worn tyre gives 20% better grip in the wet - Ben10
One of the motoring shows did a test on tyres. One car with hardly any tread, another with new tyres. The stopping distance on a wet track was vastly superior with the new tyres.
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Sun 14 Dec 2008 10:08
Worn tyre gives 20% better grip in the wet - moonshine {P}
Gmac's post has got me thinking, could it just be that the competitors tyres are bald at 20,000 miles and the optigrip performs better purely becuase it has tread left?

I couldnt find anything that detailed how much tread was left on the tyres when they did the tests.

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Sun 14 Dec 2008 11:03
Worn tyre gives 20% better grip in the wet - M.M
The more you look the more confusing it becomes. If you click on Brit-in-Germany's link and then on Aquaplaning when worn... then the video with the Mercedes it comes up with a table that shows the Goodyear to have better straight aquaplaning performance when worn than competitors when new.... but I don't see that claim come up for wet braking or handling.

David
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Sun 14 Dec 2008 12:46
Worn tyre gives 20% better grip in the wet - Mapmaker
The Goodyear (iirc and it's not another brand) reveals new bits of tread as it gets older, according to their promotional blurb.
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