Member Since: 02 Sep 2007
Location: Staffordshire
Posts: 2401
Tread Depths??
OK, a bit of a boring one, but what's the tread depth of a NEW Wrangler HP 255/60/18?
I just want to work out what the % wear per month is, but I don't know what the depth was.
Also what about the General AT2 (same size).
I'm going to have to replace the Wranglers on mine soon and I'm seriously confused
Rob
6th Jan 2008 9:58 pm
DaveT
Member Since: 01 Aug 2005
Location: Cornwall
Posts: 2576
Wrangler 8mm
AT2 13.5mm
If memory serves correctly at this time of night.
Either way, AT2's last longer & get stuck less - and can usually be had for less £
(spot the biased opinion )Long succession of Disco's since 2001...
SIII Lightweight - neglected & rusting. Bulkhead, A panels, vent panel & outriggers now disintegrated - Next years project!
I just want to work out what the % wear per month is
Err Why? Too much intellectual firepower can damage your common sense.
6th Jan 2008 11:10 pm
simon
Member Since: 11 Jan 2005
Location: Shropshire
Posts: 18296
I know Giraffes have long legs, does that help ?
6th Jan 2008 11:38 pm
BarryG
Member Since: 30 Apr 2006
Location: Eire
Posts: 1333
7th Jan 2008 12:45 am
robsmith
Member Since: 02 Sep 2007
Location: Staffordshire
Posts: 2401
Re: Tread Depths??
James R wrote:
Err Why?
So I know how many monhts between replacements - simple, no giraffes involved
7th Jan 2008 6:36 am
al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10352
dont forget to deduct the 1.6mm legal minimum, or even the 3mm (EU minumum) depth at which the noise from the goodyears will drive you mad.
AlVolvo XC90 B5 Plus Dark
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7th Jan 2008 11:13 am
robsmith
Member Since: 02 Sep 2007
Location: Staffordshire
Posts: 2401
With mine approaching my personal throw away limit of just below 4mm that means I will be chucking a set of "half worn" tyres in the near future. On that basis alone I guess its going to be AT2s next time around, given that they are comparable on price, but listening to the conversations sound a good bet. (But I'd much rather have BFG ATs, but they aren't available in the UK in a 255/60/18 just now).
I don't trust 2.7tonnes of vehilce at speed with only a couple of mm of tread -I've been there and have the tee-shirt and don't want to wear it again.
Pirellis are between 8.5 and 9mm when new, but if you deduct 2+mm for safety that leaves 7mm and I have found that they only last 15,000 miles so that makes 2,000 miles per mm of useable tread depth (or every 1,000 miles uses up 7% of their lifespan!! (or to put it another way, diesel may cost 20p per mile, but the tyres alone add another 5p per mile to that )
7th Jan 2008 12:43 pm
robsmith
Member Since: 02 Sep 2007
Location: Staffordshire
Posts: 2401
Much the same sort of argument goes through my mind with the Goodyears, and the sums work out much the same (depending where I can get them from), but the AT2s with the best part of double the useable tread cost about 2.5p/mile if they wear at the same rate in terms of miles per mm.
I have a personal distrust of Pirellis ever since I had an "interesting moment in a A40 on Cint's then years later two blowouts on the rear of my P38 within a week (both due to sidewall manufacturing faults (tyres were only two and three weeks old when they let go, and dealer replaced them all for nothing with BFG ATs which lasted years)
Much the same sort of argument goes through my mind with the Goodyears, and the sums work out much the same (depending where I can get them from), but the AT2s with the best part of double the useable tread cost about 2.5p/mile if they wear at the same rate in terms of miles per mm.
Other factor to consider though is the use they are to be put to. AT2's may be great for off-road, BUT their braking distance, and indeed traction, on a tarmac roadway or even compacted snow (as opposed to soft new snow) may not match that of a Goodyear or Pirelli which has been designed with a road bias
7th Jan 2008 1:01 pm
SN
Member Since: 03 Jan 2006
Location: Romiley
Posts: 13710
Just to back that up my Cooper ST's definitely DON'T have the same on-road manners as the P Zeros - managed to provoke what felt like a four wheel jitter (followed quite closely by a sph***ter jitter) quite easily in the damp last week entering a roundabout over a camberSteve N | 21MY Defender | 08MY Discovery 3 (history) | 06MY Discovery 3 (ancient history)
7th Jan 2008 4:42 pm
suevite
Member Since: 15 Oct 2006
Location: Surrey
Posts: 69
Tyre wear slows down
Just pedantic, but as tread decreases so does flex, and there should be a modest reduction in rate of wear as the tread diminishes. This shoulld mean that you get more miles from the last 4 mm than the first 4 mm- say. The reverse also explains why the first few mm just disappear very quickly. Don't put it off, go for it!
8th Jan 2008 9:19 pm
10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
Never bother checking tread depths - the sidewalls wear out first on mine
8th Jan 2008 10:50 pm
craig
Member Since: 08 Aug 2006
Location: Home of LR.
Posts: 2545
Is that because you won't pay Kwik Fit prices to fit the tyre in the first place 10?
Just go for a leisurely drive, whilst fitting the tyre....
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Err Why? 
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