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hdj80 preparation progress + 9.00R16 tires question

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Tomaz,
38 inch tyres do look the part but believe me, there's nothing you
can't achieve with 32 inch tyres, like 238/85/16, even on very soft
sand. You just need to be more careful with planing your line of
approach, gearing (if your box is manual) and the throttle. When you
happen to get stuck, air down as much as possible and rock the car
back and forth until you can gain a bit of extra momentum to drive
away.
--
Rgds,
Roman (London, UK)
'92 HDJ80 (auto)
On 9/18/07, Tomaz Sustar <[Email address removed]> wrote:
 
I don't think Michelin recommend the XZL is used on tarmac for too long as
it can fail, perhaps the issue is stress on the tires and driver, not the
stress the larger tires will place on the vehicle.
Malcolm Bagley
Stafford UK
FJ45 '75 & FJ45 '76
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21:48
 
Malcolm, Roman, Tomaz,
'I don't think Michelin recommend the XZL is used on tarmac for too long'
I hadn't heard this, though we did have some concerns about speed ratings;
as the XZL is a truck tyre it is only rated (from memory) at about 60mph.
However, the weight of fully loaded 80 with long range tanks, camping &
recovery gear and a fortnight's worth of drinking water doesn't come
anywhere near the load these tyres are designed to carry. We started off
carefully checking temperatures and experimenting with pressures, but the
tyres never got beyond mildly warm even after prolonged cruising at 80 to
90mph. I should probably caveat this by saying that this isn't the designed
use for the tyre and experiment at your own risk etc. etc.
In terms of stress on the driver, I guess it depends what you're used to,
but they seemed at least as well behaved on tarmac as an MT, and certainly
noticeably better than the Silverstone MT117 Extremes I was previously using
(similar to a Simex).
The XZLs appear to be very tough hence ideally suited to this type of
travel. They certainly got the thumbs up from the local desert drivers.
The 255/100r16 XZLs actually measure slightly under 36.5" in diameter.
Perhaps the 8.25x16 would be a less radical choice.
Roman, you are right, there is probably little that can be done with a
9.00x16 that can't be done with the right techniques and a 7.50x16. I
suppose it comes down to priorities - ease of local replacement for 7.50s vs
amazingly easy sand driving on the 9.00x16s.
Driver technique is a big factor both ways; good sand driving abilities to
get through with smaller tyres or mechanical sympathy to alleviate the
potential strain of larger tyres.
In terms of mechanical stress the 7.50s will be best overall, though in some
circumstances on the sand the improved flotation of the 9.00x16s may
actually make the vehicle's life easier...
The other factor is pricing. If you go to buy new 9.00x16s they are
prohibitively expensive anyway. We only ended up with them because Ian was
lucky enough to pick up a one-off job lot for peanuts.
Tomaz, another thing to be aware of is whether you have new or part worn
original Michelins or retreads. Retreads vary in quality and might well be a
liability for high speed tarmac work.
Also, our experience has been with XZLs rather than XLs which may make it
irrelevant...
All the best,
Toby
1990 HDJ80 UK
1994 HDJ80 auto
 
Hi Roman,
thank you for your answer - a friend who has recommended them he also
told me that some extra care is required and he warned me that they are
really dangerous on wet hard surface ....
regards,
Tomaz
 
Hi Malcom,
the tires are XL and not XZL. XL are military tires used on small trucks
and if I remeber correctly also on pintzgauers.
Regards,
Tomaz
 
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I did trawl the Mich web site a few months ago and noticed the XZL wasn't
listed in 7.5R16 anymore. Not a fantastic site and they do list the XZL as
off road. I would guess in normal temperatures, without too much load you
wouldn't see a problem .
Found a site with a reference to a problem with XZL's (only found one
reference). (This isn't were I first came upon XZL's and tarmac but I can't
remember where that was, if it was on the net even)
http://www.tobysavage.co.uk/Article texts/Sat Nav article.html
Kev=92s tyresome problem.
Kev=92s Camel Trophy 110 had just 20,000 miles on the clock when two of his
Michelin XZL=92s started throwing tread. We had little idea of their history
except that they had competed in the Tierra Del Fuego Camel Trophy in 1998.
We felt it odd that they had thrown their tread in such dramatic fashion
however, and wrote to Michelin enclosing this photo.
Michelin=92s reply was:
"The XZL=92s are designed for a mixture of on and off road usage, with about
80% of the operation being off-road.
We note that the main portion of your mileage on these tyres was on-road,
and this may have resulted in some weakening of the casing,
which then showed itself at a later date, in the form of the splits
pictured.
"The XZL 4x4O/R tyres are a good selection for the usage described whilst on
your field trips. However, they would not be our prime choice for the
general road use whilst in the UK. We would recommend that you operate this
Land Rover on an alternative set of tyres."
Malcolm Bagley
Stafford UK
FJ45 '75 & FJ45 '76
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21:48
 
I see where the confusion is. Michelin redesigned the XZL a few years ago,
the problem tyres were the old design. The easy way to tell new from old on
the 9.00x16s is the old design were three tread blocks wide, the new are
four. Also the old were sized purely as 9.00x16 whereas the new are sized
as both 9.00x16 and 255/100r16.
I am not sure, but guess they stopped making the 7.50 when they redesigned
them.
Ian
 
Ok Ian,Toby and the rest of you...
the more I read about tyres the more confused I get so I'll ask politely and
may expect an answer for my worries:
I don't do off-roading, I'm driving most on normal motorway but sometimes
here we have suddenly a lot of snow in the middle of the night or ice on
some corners you never expect to be there-just winter as usual in Norway.
and what i'm looking for is tyres that have comfort,low noise and good
traction!
hm-don't believe it is an easy answer but maybe I'l get some??size 275-70-16
cheers
Lubo
'96HDJ80 24v
256tkm on the clock and more I drive it the more I love it
:)))))))))))))))
 
Hi Lubo,
What you need from your tyres is very different to someone who is planning a
Sahara trip. The Michelins we are talking about are definately NOT what you
need. I would say you need something like a BFG A/T.
Regards
Ian
 
Hi Ian
never heard about it-who produce them?
cheers
Lubo
. I would say you need something like a BFG A/T.
 
Hi Lubo,
I think Ian is referring to BF Goodrich All terrain tire which is the
tire I'm using currently and it performs really well - I have used them
also for Algerian trip this spring without any problems (265/75 R16).
The Michelin XL's i was talking about are tires for Saharan trips with a
lot of sand driving.
Regards,
Tomaz
 
Hi Tomaz
look what I found:
The Baja T/A Radial is flat out the best high speed off road racing tire
on the planet. Period.
It's bigger, tougher, thicker, stronger, faster, better handling on or
off road and more puncture resistant. It not only makes these claims but can
back them up with more time on the track and in the winners circle than any
other tire. And it has a tread pattern that while working better in dry,
loose or rocky terrain than any other tire. Still manages to work well in
mud. All while providing an excellent, quiet on road ride and wet surface
traction/braking.
But they have hell of a lot to choose from and I don't think they are sold
in Norway
I'll do some checkings
cheers
Lubo
 
Hi Lubo,
I'm aware of this option but have you checked the price on Baja ? As far
as I remember they were bloody expensive ....
Regards,
Tomaz
 
Lubo.
Iwould recommend looking at Cooper ATR or ST. If you are not doing much off road the ATR is really good - have them on mine at the moment and after 28K miles they still look good. They are 70% on road rated and are slightly less agressive than the ST which is the proper 60% on road all terrain tyre. I reckon they are a good as BFG and in the UK they are also cheaper.
Cheers
Andy Harvey
Cheltenham, UK
+44 7761 266676
------------------------
From: "Lubo" <[Email address removed]>
Subject: Re: [ELCO] hdj80 preparation progress + 9.00R16 tires question
Date: Tue, 18 Sep 2007 22:23:42 +0200
Reply-To: [Email address removed]
Ok Ian,Toby and the rest of you...
the more I read about tyres the more confused I get so I'll ask politely and
may expect an answer for my worries:
I don't do off-roading, I'm driving most on normal motorway but sometimes
here we have suddenly a lot of snow in the middle of the night or ice on
some corners you never expect to be there-just winter as usual in Norway.
and what i'm looking for is tyres that have comfort,low noise and good
traction!
hm-don't believe it is an easy answer but maybe I'l get some??size 275-70-16
cheers
Lubo
'96HDJ80 24v
256tkm on the clock and more I drive it the more I love it
:)))))))))))))))

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
 
9.00R16 tires question

Andy
now I drive with Cooper Discoverer M+S but they were the worst in test form
all the winter tires.the bad thing was that I already bought them when I got
the magazine with the test and I feel very insecure when driving,specially
on icy road.don't feel they have good traction either in swings.So that is
why I'm looking for good winter tires...
cheers
Lubo
PS by the way the size I have now is smaller than recommended one 265-75-16
and I'm not sure should I look for 275.70-16 though very difficult to find
that size here(don't know why)
Lubo.
Iwould recommend looking at Cooper ATR or ST. If you are not doing much off
road the ATR is really good - have them on mine at the moment and after 28K
miles they still look good. They are 70% on road rated and are slightly less
agressive than the ST which is the proper 60% on road all terrain tyre. I
reckon they are a good as BFG and in the UK they are also cheaper.
Cheers
Andy Harvey
Cheltenham, UK
+44 7761 266676
------------------------
From: "Lubo" <[Email address removed]>
Ok Ian,Toby and the rest of you...
the more I read about tyres the more confused I get so I'll ask politely
and
may expect an answer for my worries:
I don't do off-roading, I'm driving most on normal motorway but
sometimes
here we have suddenly a lot of snow in the middle of the night or ice on
some corners you never expect to be there-just winter as usual in
Norway.
and what i'm looking for is tyres that have comfort,low noise and good
traction!
hm-don't believe it is an easy answer but maybe I'l get some??size
275-70-16
cheers
Lubo
'96HDJ80 24v
256tkm on the clock and more I drive it the more I love it
:)))))))))))))))
=======================================================================
 
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