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Normal tyre tread wear rate

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12 Oct 2017 19:20 - 12 Oct 2017 19:23 #185144 by Bosanek
Bosanek created the topic: Normal tyre tread wear rate
I am wondering if my tyres are wearing quickly or normally.

I have Goodyear Wrangler AT/SA+ tyres.

Their tread depth was 10 mm when they were new.
They are classified as all season all terrain tyres, and I use them through the entire year (scorching hot summer tarmac, icy winter roads, all kinds of off road terrain ...).

Now, after traveling for 18 000 km (cca 11200 miles) for two full years (two summers, two winters), their tread depth has decreased to 7-8 mm. So it's a 2-3 mm tread depth loss.

The tyres did cross a lot of miles on various types of gravel (I would say a fifth or a fourth of the above mileage) and I always deflated them to 66% of normal on-road pressure when driving on such a terrain.

Would this be considered a normal tread loss rate? It appears a bit too fast to me.
Last Edit: 12 Oct 2017 19:23 by Bosanek.

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13 Oct 2017 03:57 #185155 by 11/60
11/60 replied the topic: Normal tyre tread wear rate
11000 for 2mm is about right on a Goodyear, they are not the very longest lasting tyres for that you want either bfg or Michelin. Also bear in mind that they are still an off road pattern and hard road surfaces will take a toll. Do you rotate them from corner to corner?

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13 Oct 2017 06:39 #185156 by 1066Boy
1066Boy replied the topic: Normal tyre tread wear rate
Sounds ok to me. No point in having a tyre that lasts for ever as they start to go hard after a few years and road performance drops. :(

Jimny JLX Facelift model 2005.
Kashmir Blue Pearl Metallic.
2" lift with Procomp Es1000 shocks.
Diff and transfer box guards from Jimnybits.
215/75/15 General Grabber x3's
and a driver called Allan (1066Boy)

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13 Oct 2017 10:13 #185164 by furo
furo replied the topic: Normal tyre tread wear rate
I have a set of the exact same tyres (for sale if anyone is interested!). They are 2 years old and have done about 15000 miles.

I just measured the tread (not to the lowest point because my ruler was too wide). The spare which has only done about 100 miles was 8mm, the rear tyres were 5mm and the front were 6mm. The point I was measuring to was about 2mm from the true bottom, so my numbers are identical to yours - 10mm on the spare and 7-8mm on the used ones.

2004 Jimny Mode; General Grabber AT3s (215/75/R15); Black Modular Steel Wheels; Jimnybits Front and Rear Recovery Points; Osram Nightbreakers; Trailmaster 2" Lift, Jimnybits Snorkel; Roof Rack; AVM Manual Hubs; ORA Radius Arm Guards.

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13 Oct 2017 10:39 - 13 Oct 2017 10:40 #185166 by Bosanek
Bosanek replied the topic: Normal tyre tread wear rate
I do rotate the tyres with every oil change, approximately every 8000 km (5000 miles).

Thank you all for the answer, especially to furo.


If I am correct, with this rate of tread wear, the tread depth of such tyres should decrease from 10 mm to 4 mm after about a total of circa 35 000 miles (around 55 000 km), possibly a couple of thousands more.

So all this appears to be normal tread wear rate then?


As far as I know, 4 mm is the legal (and the sane) limit for the tread shallowness for winter tyres.
Last Edit: 13 Oct 2017 10:40 by Bosanek.

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13 Oct 2017 18:36 #185188 by Busta
Busta replied the topic: Normal tyre tread wear rate
Seems similar to my BFGs, but mine started with around 13mm of tread and are now at 6-7mm at 40,000 miles and 4 years. My current thinking is run them for another year then see if I can sell them for £30 each with 4mm of tread. Total cost for 5 tyres over 50,000 miles should work out about £350 or £0.007 a mile, which I consider very reasonable for a premium tyre with excellent off-road performance. Food for thought for those that consider such tyres a lavish expense!

The legal tread limit in the UK is 1.6mm. If I wasn't worried about off-road performance deteriorating I could legally run them for another 2 or 3 years.

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14 Oct 2017 11:41 #185214 by kirkynut
kirkynut replied the topic: Normal tyre tread wear rate

1066Boy wrote: Sounds ok to me. No point in having a tyre that lasts for ever as they start to go hard after a few years and road performance drops. :(


What he said.

Kirkynut

The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

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14 Oct 2017 19:00 #185226 by Bosanek
Bosanek replied the topic: Normal tyre tread wear rate
Busta,
What exact model and size are your BFGoodrich tyres?

Did you cover 40 000 miles with four tyres or with all five tyres in an active 5-tyre rotation scheme?

I totally agree that expensive tyres can in fact end up being cheaper to own if they last a lot longer than el-cheapo ones.

I was just concerned that my expensive Goodyears were wearing faster than some el-cheapo tyres out there :)

A certain tyre model costs more or less the same worldwide, and it is a much larger investment to buy a full tyre set in 3rd world countries than it is in "the west". Just imagine spending almost your entire monthly salary on a 5-tyre set ...

That's why many people skimp on tyres.

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14 Oct 2017 20:14 #185233 by Busta
Busta replied the topic: Normal tyre tread wear rate
BFG km2 mud terrains, 215/75r15, 5 tyres in rotation.

Lots of people in wealthy countries choose cheap tyres to!

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14 Oct 2017 21:18 #185239 by 11/60
11/60 replied the topic: Normal tyre tread wear rate

Busta wrote: Lots of people in wealthy countries choose cheap tyres to!


And then they complain about not having enough money!

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