Home > Maintenance & Modifications > Legal tread depth! |
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kingofthesparks Member Since: 06 Jan 2011 Location: Very close to Watford gap services , northants Posts: 987 |
But would you get on a coach with only 1mm tread ?
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5th Feb 2012 12:59pm |
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JSG Member Since: 12 Jul 2007 Location: Berkshire Posts: 2412 |
IIRC when I had company cars the lease company used to change them at 3mm. I'd change mine at no lower than 3mm though. John
http://www.hampshire4x4response.co.uk 2011 Tdci 110 CSW XS |
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5th Feb 2012 9:22pm |
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twopoint6khz Member Since: 18 Aug 2011 Location: North Lakes Posts: 654 |
3mm is reckoned to be the point at which traction really starts to tail off and aquaplaning becomes a big issue. On a 4x4 though, tyres have ceased to be useful a long way before 3mm....
Most new AT/MT tyres come with 1/2" of tread, which is about 13mm. |
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5th Feb 2012 9:41pm |
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Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5013 |
Yeah I have been driving around in clouds of dry salt dust for the last 4 days, and yesterday slushy salty roads It's now being used for work and daily school runs etc. Not worried EVERYTHING got another coating of ACF-50 etc 2 weeks ago and the underside is pretty bullet proof. Their is nothing exposed to the elements including the gearbox casing etc.
Out again in it this morning, the salt will be around for another week but a pressure wash down and more potions sprayed on will neutralise any remaining salt Salt is a sod to get off, most of it doesn't come off with just rinsing. A lot of boat trailers now have built in pipes which are supposed to rinse your brakes waste of time! You bent the 90 not your ICE Last edited by Zagato on 6th Feb 2012 7:45am. Edited 1 time in total |
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6th Feb 2012 7:36am |
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JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443 |
Just leave them covered in summer no salt dirt gives a protective layer against the salt
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6th Feb 2012 7:43am |
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Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5013 |
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6th Feb 2012 7:44am |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17379 |
Legal min for a DPV is the same as for a car (and as has been mentioned once or twice before before as far as C&U is concerned the N1 thing has no relevance), so it is 1.6 mm tread depth over the centre 75% of the tread width around the circumference and "visible tread" on the remaining 25% of tread width.
Anyone who drives any vehicle with this little tread, let alone a 2.5+ ton 4x4, in my opinion, should be removed from the road permanently. Personally I would never run a tyre on a Landrover below 6mm, and usually replace them at about 8mm to 10mm when they still have some traction and also still have some resale value. |
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6th Feb 2012 10:52am |
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MartinK Member Since: 02 Mar 2011 Location: Silverdale (Lancashire/Cumbria Border) Posts: 2665 |
I changed my BFG AT's at 4-5mm. Still managed to sell them on Gumtree for a few quid (£40 iirc) Agree traction seems to go off when 5mm or less - but also they are very old by then. Also, as I normally get up to 80,000 miles on decent AT's, they're usually at least 5-6 years old by the time they get to 4-5mm... I think my last BFG AT's would have exceeded 100,000 miles if I had run them down to the legal minimum. Defender "Puma" 2.4 110 County Utility (possibly the last of the 2.4's) Last edited by MartinK on 6th Feb 2012 11:07am. Edited 4 times in total |
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6th Feb 2012 11:02am |
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Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5013 |
Hadn't thought of moving them on at about 6mm - good idea
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6th Feb 2012 11:05am |
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MartinK Member Since: 02 Mar 2011 Location: Silverdale (Lancashire/Cumbria Border) Posts: 2665 |
Defender "Puma" 2.4 110 County Utility (possibly the last of the 2.4's) |
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6th Feb 2012 11:11am |
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Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5013 |
Yes had an old tyre break up on me at 40mph. The whole tread just peeled off flapping round the turning wheel smashing up my whole wing around the wheel arch. Was in an old SAAB where the wing overlaps half the wheel
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6th Feb 2012 11:15am |
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17379 |
My tyres never seem to get the chance to get old enough to deteriorate, since I tend to do around 25k+ miles in a year they never get much beyond four years old if that.
Having said that, now my Series 1 gets used less the tyres on that (the fantastic Michelin XCL, what a shame it's no longer made) are quite old, but in excellent condition. UV radiation is what kills tyres, so if they are stored in the dark they will last a great deal longer than if they see daylight (one reason why a cover on the spare is a good idea). The S1 lives in a windowless garage, so no problems there. I run BFG Muds by choice, and on my 200k-mile Disco 2 I will need to replace the second set quite soon. Like the first set that these replaced, they have done approx 100k miles and have more than 6mm remaining. These are the original style Muds (not KM2) and it will be interesting to see if the KM2s last as long. |
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6th Feb 2012 11:37am |
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kingofthesparks Member Since: 06 Jan 2011 Location: Very close to Watford gap services , northants Posts: 987 |
My old double decker bus has 1.2mm of tread, may replace them soon
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6th Feb 2012 1:12pm |
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ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731 |
I know I've posted this before, but this is what a certain Europe-hire-car company affiliated with a certain orange airline consider safe...
Click image to enlarge Click image to enlarge ...needless to say, it wasn't (thank God none of us was hurt...) :evil: Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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6th Feb 2012 2:40pm |
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