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Captain Crosscheck
Member Since: 03 Sep 2021
Location: Oslo
Posts: 340
  
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How old are they? I never run winter tyres more than four, five tops, seasons as the rubber hardens. Tread or no tread, I find that age is just as big a factor after driving 20+ seasons on snow.
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 14th Dec 2022 12:21 pm |
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qcnr
Member Since: 23 Nov 2017
Location: Norway
Posts: 117
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Minimum tread depth is 1.6mm for summer or 3mm for winter.
I would change them now, they are after all the only things that keep your car attached to the road.
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| 14th Dec 2022 2:00 pm |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23822
  
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Approx. 3mm is the point when I change.
If it’s in the summer I might go a little lower, but always by 2.5mm
Pirelli ATR’s were still performing well at that level. If they hadn’t been, I’d have changed them sooner.
Currently running GG AT3’s and anticipate they’ll need to be changed earlier from what I’ve read.
As has been said , tyres and brakes, never skimp.  2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
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| 14th Dec 2022 3:06 pm |
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MintyHit
Member Since: 25 Jul 2017
Location: Bradford on Avon
Posts: 234
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Captain Crosscheck wrote:How old are they? I never run winter tyres more than four, five tops, seasons as the rubber hardens. Tread or no tread, I find that age is just as big a factor after driving 20+ seasons on snow.
Excellent point!
I put them on summer 2017 and they have done at least a score of trips.
I think best change them out a bit early based on helpful comments.
Thanks all!
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| 14th Dec 2022 8:07 pm |
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Moo
D3 Decade
Member Since: 13 Aug 2010
Location: UK
Posts: 14383
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I used to replace mine at 4mm. I took the view that anything less and you lost the advantage of the tread. Mind you I would still see over 30,000 miles out of them. New Defender L663 110 SE (known as Noddy!)
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner 
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
Still original injectors and turbo
V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
EGRs blanked
T-Max split charge
Hanibal Expeedition rack
Prospeed ladder
Duratrac tyres
IID BT
BAS FBH control
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| 15th Dec 2022 8:00 am |
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RRSTDV8
Member Since: 07 Apr 2014
Location: Here
Posts: 13541
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The AT+, like the Grabber AT3, are winter rated. Winter tyres are recommended to be changed at 4mm of remaining tread depth in order to maintain winter performance. They have a 4mm wear marker for this reason.
As Moo says, taking an AT down to the legal limit means you lose the benefit of the blockier tread when off road.
When my rear dampers are replaced next week, it's my intention to fit new tyres. I was thinking of fitting a fresh set of AT+ but Pirelli have done their usual thing of deciding to not supply 255/55/19 to the UK. Whilst they can still be found here and there, the risk of not being able to find some should I need a new tyre e.g. a non-repairable puncture, means I'll likely go back to the GG AT3. Visiting from rrsport.co.uk
2012 RRS SDV6
2008 RRS TDV8
"When you fire that first shot, no matter how right you feel, you have no idea who's going to die! You don't know who's children are going to scream and burn. How many hearts will be broken. How many lives shattered. How much blood will spill, until everybody does what they were always going to have to do from the very beginning: SIT DOWN AND TALK!"
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| 15th Dec 2022 9:14 am |
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grizzlymac
Member Since: 01 May 2010
Location: Blair Atholl
Posts: 67
 
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I just put on new duratrac a month or so back and noticed huge difference when hitting standing water. Still probably years life left if taken down to legal limit but not worth going that. Did just over 55k on them
With all this crazy weather and the state of our roads I'd say change sonner rather than later. Discovery 4 HSE Montalcino Red
locking rear diff
tow pack
privacy glass
Discovery 4 XS Marmiaris teal gone.
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| 10th Feb 2023 12:45 am |
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Coo
Member Since: 01 Jun 2015
Location: Fife, Scotland
Posts: 284
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When they start to slide, you start to lose confidence...
Time to change !
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| 10th Feb 2023 8:42 am |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8223
 
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If the recommendation for winter tyres is 4mm what is the recommendation for normal road tyres in winter? It can when others can't,
It will when others won't,
It goes where others don't.
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| 10th Feb 2023 11:17 am |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23822
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The legal limit is as stated above (1.6mm ?). However, most people would agree that it is prudent to replace them before then.
Exactly when is down to the individual and also how the tyres are performing.
As per my previous post, I typically change when the tread is around 3mm. I definitely never go below 2.5mm 2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
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| 10th Feb 2023 2:57 pm |
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