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mrszymon
Member Since: 17 Apr 2012
Location: London
Posts: 425
 
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No, no, turn off that music and put away the limbo stick, this is a thread on tyre tread 
The legal limit for road tyres is 1.6mm across the central 3/4 of a tyre. It seems that on a discovery one should probably change quite a bit before this. No? Yes? If so, how much before? How low can you go?
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 11th Jul 2012 10:27 am |
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NJSS
Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10615
  
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I view 3 mm as the change point.
NJSS Am I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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| 11th Jul 2012 10:44 am |
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ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15237
 
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Yep agree, no less than 3mm
Would'nt even dream of running a 2.5 ton vehicle on anything less.
Personally I change mine when they get to 6mm [but there's method in my madness].
It's a strange one though .... as 1.6mm is the legal UK limit, there's bound to be a huge difference in braking performances between for example a Micra an a Disco.
One would've thought the EU Bureaucrats would've stepped in and provided a min depth dependant on vehicle weight/size  ...... always on the road less travelled 🚧
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| 11th Jul 2012 10:56 am |
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AJS4X4
Member Since: 30 Mar 2008
Location: Surrey
Posts: 3224
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I think you should all change your tyres at 8mm. 
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| 11th Jul 2012 11:20 am |
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mrszymon
Member Since: 17 Apr 2012
Location: London
Posts: 425
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Thanks guys 
Much of this thread was to enable me to convince the wife that spending a large amount of money on new tyres at this point is reasonable and acceptable. Ours have around 4-5mm left, but the principle remains that changing earlier than 1.6mm is a very good idea generally. We'll be going on a 3000-4000 mile journey around Europe in a few weeks time, and I'll just feel more comfortable having a new set of tyres. I'll be visiting AJS4x4 pretty soon for some GG AT's...
-simon
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| 11th Jul 2012 3:16 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8154
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AJS4X4 wrote:I think you should all change your tyres at 8mm.
I agree and give me the old ones
I think for road use 1.6 is ok for summer months and 3mm for winter.
Interestingly a company near me that has been operating several years buys sound tyres that have been taken off because they have reached the legal UK limit and ships them to South Africa to be used again. It can when others can't,
It will when others won't,
It goes where others don't.
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| 11th Jul 2012 4:47 pm |
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ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15237
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M3DPO wrote:I think for road use 1.6 is ok for summer months and 3mm for winter.
In theory that sounds fine, but then look at the deluge we've had and this is 'summer', so 1.6mm not really appropriate. ...... always on the road less travelled 🚧
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| 11th Jul 2012 5:08 pm |
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AJS4X4
Member Since: 30 Mar 2008
Location: Surrey
Posts: 3224
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For safety 3mm would be the benchmark IMHO.
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| 11th Jul 2012 5:58 pm |
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