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Car Forum / UK Car Forums / 4x4 Cars (UK group) / February 2005

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Tyres..........

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Steve - 09 Feb 2005 17:36 GMT
Yeah, OK, The Nissan X-trail that I have at the moment may not be classed as
a proper 4x4 but felt it safer to post in here rather than normal motoring
group so I dont get sent to hell and flamed for owning a fuel guzzling,
pedestrian killer vehicle that never ever gets its feet wet!!

Anyways,

I have the original tyres on it the moment, which are Dunlop Grantrex, on
all 4 rims. The front set are not that far off worn and will need
replacement rather soon. The limited amount I have used the nissan off road
so far (bought the car in december 2nd hand so tyres already worn to about 3
mm ish) it was ok other than in a muddy field that had stubble on it and a
fair old incline on it too, did get through it but wheels were spinning more
than I expected.

Is there a better tyre out there that would suit this vehicle, good for on
road stability and general off road use?

If I was to change to say the Dueller H/T would I need to swap all 4 tyres?
or just 2 for now and put the existing Dunlops on the front so they wear
down and then get a second pair of H/ts at a later date? Are you supposed to
not mix brands between both axels or is it just dont mix brands on the same
axel?

I work for one of the mobile phone networks and so use the car occasionally
for site visits. Sites can be accessed generally through, slightly muddy,
grassy tracks, that can often be quite steep.Some are just steep with loose
gravel rocks on. Live in scotland, so would need to be good in snow too.
And, as the car is 136bhp and I have a heavy right foot, something that wont
make me lose it on a bend.

Any help and recomendations for tyres would be great. I live in UK.

Thanks
Steve
huLLy - 09 Feb 2005 17:48 GMT
> Is there a better tyre out there that would suit this vehicle, good
> for on road stability and general off road use?

BF Goodrich AT's, superb tyre.
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huLLy - 09 Feb 2005 18:21 GMT
>> Is there a better tyre out there that would suit this vehicle, good
>> for on road stability and general off road use?
>
> BF Goodrich AT's, superb tyre.

Couple of pics here, 1st one was the old cheapo tyre...

http://www.evcs.net/tyres.html

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Rooney - 09 Feb 2005 18:24 GMT
>>> Is there a better tyre out there that would suit this vehicle, good
>>> for on road stability and general off road use?
[quoted text clipped - 4 lines]
>
>http://www.evcs.net/tyres.html

A couple of questions:

What are they like for motorway driving?

What tyres are likely to last longest - is there a make that is harder
wearing than the rest?

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huLLy - 09 Feb 2005 18:47 GMT
>>>> Is there a better tyre out there that would suit this vehicle, good
>>>> for on road stability and general off road use?
[quoted text clipped - 8 lines]
>
> What are they like for motorway driving?

Fine, I drive regularly up and down to Scotland. Grip, road noise etc is
good.

> What tyres are likely to last longest - is there a make that is harder
> wearing than the rest?

The tread on these is about 12mm deep, it's going to last a long time :)
And you don't want tyres so hard they slide off the road every time you put
your foot down at a corner.. if your truck is rear wheel drive..
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hugh - 09 Feb 2005 23:12 GMT
>>>> Is there a better tyre out there that would suit this vehicle, good
>>>> for on road stability and general off road use?
[quoted text clipped - 11 lines]
>What tyres are likely to last longest - is there a make that is harder
>wearing than the rest?

BFGs have a good reputation on that score - my MTs have done 57k and
mostly on road. They are getting down a bit now though and probably
wouldn't be much good off road.

The best compromise tyre used to be the BFG Trac Edge but they dropped
that after being taken over by Michelin who I believe do an equivalent
but I don't know what he type name is.
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Steve - 09 Feb 2005 18:52 GMT
> BF Goodrich AT's, superb tyre.
Cant make out what jeep that is in your pics, but looks like one of the
bigger ones that is probably better off road than my x-trail but conversly
not as good on-road. How ill these tytes fair on tarmac wet and dry? Given
that the nissan has 136bhp and will do 115mph easily and takes corners not
so bad I dont want to be sliding all over the place!!

Steve
Huw - 09 Feb 2005 18:05 GMT
"Steve" <No@Way.com> wrote in message >
> Is there a better tyre out there that would suit this vehicle, good for on
> road stability and general off road use?

Michelin Synchron 4x4. Can't be beaten for your type of work assuming they
make them in the size you need. These tyres are standard fit on BMW some BMW
X5 and Range Rovers in various sizes. Unless the rears are less than two
thirds worn I would change all four. It depends really on how many sets of
tyres you are likely to use on this car and this depends to a large extent
on how many miles you are likely to cover before you sell it.

Huw
hugh - 09 Feb 2005 23:13 GMT
>Yeah, OK, The Nissan X-trail that I have at the moment may not be classed as
>a proper 4x4
<Snip>

Are you confusing this group with alt.fan.landrover perhaps?

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hugh
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Paul S. Brown - 10 Feb 2005 09:30 GMT
>>Yeah, OK, The Nissan X-trail that I have at the moment may not be classed
>>as a proper 4x4
> <Snip>
>
> Are you confusing this group with alt.fan.landrover perhaps?

FWIW i did see an X-Trail being mocked by some SJ410 drivers and the driver
of a Nissan crewcab on an offroad site if that makes it any better :@)

P.
The Caretaker ... - 10 Feb 2005 10:05 GMT
Paul S. Brown composed the following;:

>>> Yeah, OK, The Nissan X-trail that I have at the moment may not be
>>> classed as a proper 4x4
[quoted text clipped - 5 lines]
> driver of a Nissan crewcab on an offroad site if that makes it any
> better :@)

LOL, if anyone reads afl they'd see that far from mocking other 4x4's,
most Landrover owners actually quite like the differences.  Suzukis and
Nissans have been discussed there often, and the Fiat Panda 4x4 is
discussed in glowing terms.

...... and if you _really_ read afl you'd see how many Landrover owners
whine and whinge and discuss their faults, though that's part of the
'Landrover Ownership Deal'.  :)  There is an absolute wealth of
knowledge on afl and all of it freely given.

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The Caretaker.
www.4x4prejudice.org
A balanced argument.

Metalize - 10 Feb 2005 00:55 GMT
> If I was to change to say the Dueller H/T would I need to swap all 4
> tyres? or just 2 for now and put the existing Dunlops on the front so they
> wear down and then get a second pair of H/ts at a later date? Are you
> supposed to

> Any help and recomendations for tyres would be great. I live in UK.
>
> Thanks
> Steve

dont bother with duellers - i have them on rear drive pick up truck (L200)
and they slide a fair bit when cornering. i dont hang about either - my
other drive is an evo 8, go with the BFG all terrains - any 4x4 driver worth
his salt will advise these and they are not too noisy
Andy Sargeant - 10 Feb 2005 06:42 GMT
BFGoodrich are the best value over there life span, have had customers get
upto and in excess of 80K out of them.
Andy. www.ajstyres.co.uk
> Yeah, OK, The Nissan X-trail that I have at the moment may not be classed as
> a proper 4x4 but felt it safer to post in here rather than normal motoring
[quoted text clipped - 31 lines]
> Thanks
> Steve
Rooney - 10 Feb 2005 09:37 GMT
>Yeah, OK, The Nissan X-trail that I have at the moment may not be classed as
>a proper 4x4

It's a highly regarded 4x4, doing extremely well (ie, coming top) in
tests and surveys from the likes of What Car? and Fifth Gear.
It's not a tractor - but it's not meant to be. It's a quality family
car with decent off-road ability.

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Steve - 10 Feb 2005 15:34 GMT
>>Yeah, OK, The Nissan X-trail that I have at the moment may not be classed
>>as
[quoted text clipped - 4 lines]
> It's not a tractor - but it's not meant to be. It's a quality family
> car with decent off-road ability.

I know, i was just mocking the pillocks that would either say "go and and
get a proper 4x4" (those that think anything less than a defender or shogun
etc) or thise that say "why have a 4x4 and use it on road" brigade. The
later are the ones that are bashing 4x4's at it seems to be trendy to do so
now and they need a bandwaggon to jump on until the next thing comes along
to satisfy there ignorant mind. And no doubt those in that group drive a
mondeo etc that produces more harmfull co2 etc than my x-trail and many
other jeeps produce........ but anyways..........

Looks like it will be BFG's then. Some of you say BFG All Terrain, is that
the name of them or is there a more specific name to them?

Also, only the fron 2 of the existing Dunlops are near replacement, what are
my choices, put the dunlops on the front so they wear quicker and the new
BFG's on the rear replacing the fronts when they have gone.......... or
replace the 4 in one lot? bearing in mind the spare will have to be changed
as well at some time?

Thanks again.

Steve
Rooney - 10 Feb 2005 15:39 GMT
>>>Yeah, OK, The Nissan X-trail that I have at the moment may not be classed
>>>as
[quoted text clipped - 13 lines]
>mondeo etc that produces more harmfull co2 etc than my x-trail and many
>other jeeps produce........ but anyways..........

All very true.

>Looks like it will be BFG's then. Some of you say BFG All Terrain, is that
>the name of them or is there a more specific name to them?

Seems to be a couple.

>Also, only the fron 2 of the existing Dunlops are near replacement, what are
>my choices, put the dunlops on the front so they wear quicker and the new
>BFG's on the rear replacing the fronts when they have gone.......... or
>replace the 4 in one lot? bearing in mind the spare will have to be changed
>as well at some time?

I'll leave that to someone who knows!

>Thanks again.
>
>Steve

I've just been looking up BFG tyres - is what is being recommended
this:
http://www.bfgoodrichtyres.co.uk/bfguk/front/affich.jsp?codeRubrique=12&codePage
=BFG_PAG_DETAIL2&lang=EN

(Long Trail T/A)?

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Steve - 10 Feb 2005 16:45 GMT
> I've just been looking up BFG tyres - is what is being recommended
> this:
> http://www.bfgoodrichtyres.co.uk/bfguk/front/affich.jsp?codeRubrique=12&codePage
=BFG_PAG_DETAIL2&lang=EN

> (Long Trail T/A)?

Looks like they dont my size !!!

Its 215/65R 16

Back to drawing board maybe!

Steve
Rooney - 10 Feb 2005 16:51 GMT
>> I've just been looking up BFG tyres - is what is being recommended
>> this:
[quoted text clipped - 8 lines]
>
>Steve

I looked again - the Long Trail isn't the one mentioned by the other
posters. It's the All Terrain T/A KO, which gives the following sizes
on 16" rims:

LT215/70R16 100 R
LT225/70R16 102 R
LT225/75R16 110 S
LT235/70R16 104 S
LT245/70R16 113 S
LT245/75R16 114 S
LT255/70R16 115 S
LT265/70R16 117 S
LT265/75R16 120 S
LT275/70R16 119 S
LT285/75R16 122 R
LT295/75R16 123 R

Is it possible to use something slightly different from what you've
got now?

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Steve - 10 Feb 2005 16:56 GMT
> I looked again - the Long Trail isn't the one mentioned by the other
> posters. It's the All Terrain T/A KO, which gives the following sizes
[quoted text clipped - 15 lines]
> Is it possible to use something slightly different from what you've
> got now?

Not sure, dont know enough about tyres to say... but Im sure someone will be
along later.............

But if I went that route id have to change all 4, i was hoping to get away
with just 2 now and 2 when the remaining 2 wear away..
Steve
Rooney - 10 Feb 2005 17:03 GMT
>> I looked again - the Long Trail isn't the one mentioned by the other
>> posters. It's the All Terrain T/A KO, which gives the following sizes
[quoted text clipped - 22 lines]
>with just 2 now and 2 when the remaining 2 wear away..
>Steve

What's your exact model? I looked up the X Trail using the tyre
locator thing on their site, but got the message that they can supply
your vehicle but you need to contact them.

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Steve - 10 Feb 2005 17:12 GMT
> What's your exact model? I looked up the X Trail using the tyre
> locator thing on their site, but got the message that they can supply
> your vehicle but you need to contact them.

Nissan X-trail Sport, 2.2Dci Manual, new model (ie 2004>)

Steve
Adrian - 10 Feb 2005 17:08 GMT
>>Looks like they dont my size !!!
>>
>>Its 215/65R 16

> I looked again - the Long Trail isn't the one mentioned by the other
> posters. It's the All Terrain T/A KO, which gives the following sizes
> on 16" rims:
>
> LT215/70R16 100 R
<snip>
> Is it possible to use something slightly different from what you've
> got now?

215/70 will be a taller sidewall than 215/65 - 70% of tread width rather
than 65%.

As a result, the handling will suffer slightly due to increased sidewall
flex and the speedo reading will vary due to the greater rolling radius.

I'm not sure, though, that I'd go anywhere near tyres that are only R speed
rated - 106mph max - for a car that I was going to be doing long motorway
runs in.

Steve - What speed rating (the letter after the load rating) do Nissan
specify?
Steve - 10 Feb 2005 17:17 GMT
.

> I'm not sure, though, that I'd go anywhere near tyres that are only R
> speed
[quoted text clipped - 3 lines]
> Steve - What speed rating (the letter after the load rating) do Nissan
> specify?

Its a H rating. Car will do 115mph (well it says that on my snooper and GPS
navigation) but if police asks it was only 70, lol

Steve
Adrian - 10 Feb 2005 17:25 GMT
Steve (No@Way.com) gurgled happily, sounding much like they were saying

>> I'm not sure, though, that I'd go anywhere near tyres that are only R
>> speed rated - 106mph max - for a car that I was going to be doing long
>> motorway runs in.
>>
>> Steve - What speed rating (the letter after the load rating) do
>> Nissan specify?

> Its a H rating.

130mph rated.

That's a BIG step down.
Rooney - 10 Feb 2005 17:45 GMT
>I'm not sure, though, that I'd go anywhere near tyres that are only R speed
>rated - 106mph max - for a car that I was going to be doing long motorway
>runs in.

So would S be OK for my car (Terrano), top speed 96 mph (though I've
done 100 according to the speedo)? Does it make any difference if you
are doing long motorway runs or not?

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Adrian - 10 Feb 2005 17:51 GMT
>>I'm not sure, though, that I'd go anywhere near tyres that are only R
>>speed rated - 106mph max - for a car that I was going to be doing long
>>motorway runs in.

> So would S be OK for my car (Terrano), top speed 96 mph (though I've
> done 100 according to the speedo)?

S is 112, so should be plenty of latitude.

> Does it make any difference if you are doing long motorway runs or not?

Yes - the longer and harder you're using them, the more the heat's going to
build up.

Next time you stop for fuel at the services after a long fast (well,
relatively) motorway run, put a hand on the tyre tread and see how warm
it's got.
Rooney - 10 Feb 2005 17:56 GMT
>>>I'm not sure, though, that I'd go anywhere near tyres that are only R
>>>speed rated - 106mph max - for a car that I was going to be doing long
[quoted text clipped - 4 lines]
>
>S is 112, so should be plenty of latitude.

I like the look of them, and it looks like they are widely regarded as
a good tyre. I might get a set when these need changing. The tread
seems to be going down more rapidly than I expected (Bridgestone -
came with the car).

>> Does it make any difference if you are doing long motorway runs or not?
>
[quoted text clipped - 4 lines]
>relatively) motorway run, put a hand on the tyre tread and see how warm
>it's got.

Is this what the speed rating is based on - I mean, is it getting too
hot that causes them to burst, or what?

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Adrian - 10 Feb 2005 18:04 GMT
>>> Does it make any difference if you are doing long motorway runs or
>>> not?

>>Yes - the longer and harder you're using them, the more the heat's
>>going to build up.
>>
>>Next time you stop for fuel at the services after a long fast (well,
>>relatively) motorway run, put a hand on the tyre tread and see how
>>warm it's got.

> Is this what the speed rating is based on - I mean, is it getting too
> hot that causes them to burst, or what?

It's a whole bunch of things that will affect them, but - generally - the
higher the speed rating, with all else being equal, the better they're
constructed.

Load rating is also vitally important on something the size of a 4x4 -
that's the "100" on the BFGs quoted, which means 800kg per corner.

http://www.blackcircles.com/general/sidewall
Rooney - 10 Feb 2005 18:10 GMT
>>>> Does it make any difference if you are doing long motorway runs or
>>>> not?
[quoted text clipped - 17 lines]
>
>http://www.blackcircles.com/general/sidewall

I see.
Looks like I'd be perfectly OK doing a straight swap from 235 70 R16
105 H. which is what it came with, to LT235/70R16 104 S.

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Adrian - 10 Feb 2005 18:24 GMT
> Looks like I'd be perfectly OK doing a straight swap from 235 70 R16
> 105 H. which is what it came with, to LT235/70R16 104 S.

You'll almost certainly find 'em crap on-road, though - relative to the
factory-fit.
Rooney - 10 Feb 2005 18:33 GMT
>> Looks like I'd be perfectly OK doing a straight swap from 235 70 R16
>> 105 H. which is what it came with, to LT235/70R16 104 S.
>
>You'll almost certainly find 'em crap on-road, though - relative to the
>factory-fit.

Now I'm confused!
I don't go off road anything like 50% of the time - much, much less -
but when I do it's likely to be extremely muddy, churned up fields
with a horse trailer in tow. What should I go for?

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Adrian - 10 Feb 2005 18:47 GMT
>>> Looks like I'd be perfectly OK doing a straight swap from 235 70 R16
>>> 105 H. which is what it came with, to LT235/70R16 104 S.

>>You'll almost certainly find 'em crap on-road, though - relative to the
>>factory-fit.

> Now I'm confused!
> I don't go off road anything like 50% of the time - much, much less -
> but when I do it's likely to be extremely muddy, churned up fields
> with a horse trailer in tow. What should I go for?

Dunno.

But it's one of those immutable laws of the universe - tyres that are good
off-road are unutterably pants on-road - and vice versa.

Trying to compromise leads inevitably to something that is very good at
neither.
hugh - 10 Feb 2005 22:50 GMT
>>> Looks like I'd be perfectly OK doing a straight swap from 235 70 R16
>>> 105 H. which is what it came with, to LT235/70R16 104 S.
[quoted text clipped - 6 lines]
>but when I do it's likely to be extremely muddy, churned up fields
>with a horse trailer in tow. What should I go for?

Don't take this 50% usage figure too literally. Full MTs are very noisy
on the road. Road tyres are useless off road. The 50% rating means they
are half way (roughly) between the best off road and the best on road.
They are a compromise between the need for grip in your muddy field and
the desire for a nice quiet safe ride on road. The only way to have the
best of both worlds is to have 2 sets of wheels and tyres and change
them at the gate!!!
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Anthony Webb - 10 Feb 2005 17:26 GMT
its ok to go a bit wider (too much n u get a rather amusing looking overhang
/ balloon tyre sort of effect), bit deeper sidewall is ok assumin u've got
room in ur wheelarches.. obviously 16" rims will need 16" tyres, only
problem i see is that R = 106mph and S = 112mph....
the size increase may drop ur top speed slightly? i don't know.. but
generally i thought u want tyres rated a good few mph ABOVE ur top
concievable speed, i.e. my old car went 109 top but wore tyres rated T =
118mph, not even S = 112mph.

i'd have to say i'd go for the long trails for ur sort of driving they'll
cope with some mud although u might not wanna accelerate too hard when u
first come off teh field <g> ... LT225/75R16 BSW 104 T should be ok? make
sure you check with someone who a) knows what they're talking about (thats
not me!) and b) can see your car.. only problem i foresee is i don't kno
what your suspension travel or wheel arch depth is like.. 75% of 225 is a
fair bit more than 65% of 215.

apparently theres some bullshit legislation involved with size changing i
have no idea though.. your tyre fitting man will know, and if he doesn't its
his problem not yours <g>

- /\nthony

> >> I've just been looking up BFG tyres - is what is being recommended
> >> this:

http://www.bfgoodrichtyres.co.uk/bfguk/front/affich.jsp?codeRubrique=12&codePage
=BFG_PAG_DETAIL2&lang=EN

> >> (Long Trail T/A)?
> >>
[quoted text clipped - 25 lines]
> Is it possible to use something slightly different from what you've
> got now?
hugh - 10 Feb 2005 16:59 GMT
>>>>Yeah, OK, The Nissan X-trail that I have at the moment may not be classed
>>>>as
[quoted text clipped - 38 lines]
>codePage=BFG_PAG_DETAIL2&lang=EN
>(Long Trail T/A)?

No I think its the All Terrain T/A KO

 http://www.bfgoodrichtyres.co.uk/bfguk/front/affich.jsp?codeRubrique=13&
codePage=BFG_PAG_PRODUCT1&lang=EN
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Rooney - 10 Feb 2005 17:47 GMT
>No I think its the All Terrain T/A KO

Cheers - I've found that one now.

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hugh - 10 Feb 2005 22:52 GMT
>>No I think its the All Terrain T/A KO
>
>Cheers - I've found that one now.

I had a look on the Michelin website - they own BFG. Unfortunately their
Tyre Selector module doesn't include any off road vehicles - Land Rover
isn't even mentioned.
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hugh
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huLLy - 10 Feb 2005 18:05 GMT
> No I think its the All Terrain T/A KO

That is correct
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Dave Liquorice - 10 Feb 2005 17:41 GMT
> what are my choices, put the dunlops on the front so they wear
> quicker and the new BFG's on the rear replacing the fronts when they
> have gone..........

Putting new tyres on the rear seems to be the current best practice.
Appears that having, older, less grippy, ones at the back is not a
good idea as it means the back end will tend to try and overtake the
front...

There is stuff on the web somewhere about this, can't remember now if
it really only applies to front wheel drive or to 4 wheel drives as
well.

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Adrian - 10 Feb 2005 18:26 GMT
> Putting new tyres on the rear seems to be the current best practice.
> Appears that having, older, less grippy, ones at the back is not a
[quoted text clipped - 4 lines]
> it really only applies to front wheel drive or to 4 wheel drives as
> well.

It's *regularly* the cause of a flamewar on uk.rec.driving,
uk.rec.cars.maintenance and uk.rec.cars.misc.

It's popped back up in the last couple of days, by coincidence.

FWIW, my take is to listen to what the car's telling you - if one end wears
faster, it's because those tyres are working harder, so that's the end to
put the better ones. On most cars, that's the front.

Reading between the lines, it seems that the "Always on the back" advice is
aimed at incompetent muppets.
Dave Liquorice - 10 Feb 2005 22:06 GMT
> FWIW, my take is to listen to what the car's telling you - if one
> end wears faster, it's because those tyres are working harder, so
> that's the end to put the better ones.

Or feel how the car handles under light throttle (ie no drive to the
wheels but no engine braking either) and damp/greasy surfaces. I have
a sneaky feeling that this combination of throttle/road conditions and
newish tyres front and older ones back is the real reason why I ended
up snaking down a road, hitting a wall and flipping over... This is on
a road I knew well and had driven many times before I wasn't late,
just gently driving along.

My current vehicle also has newer tyres on the front and older ones on
the back it has a tendancy to "wander" under light throttle/damp road
conditions. One day I'll swap front to back and see what happens...

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Dave Liquorice - 11 Feb 2005 22:58 GMT
> My current vehicle also has newer tyres on the front and older ones
> on the back it has a tendancy to "wander" under light throttle/damp
> road conditions. One day I'll swap front to back and see what
> happens...

That day was today and I'm reasonably sure that swapping the newer
tyres from the front to the back has made the car more predictable.
I've not driven that far yet 10 miles or so, how ever it feels more
positive and goes where you point it rather than just going in that
general direction. Time will tell if all the handling foybles have
been cured but there is a definate difference for the better.

The rear now has Pirelli Scopion Zero with a goodly amount of tread,
the front Goodyear Wrangler HP with only about 5mm left all are
255/55R18 on a Disco II. It came with them, not my choice.

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hugh - 10 Feb 2005 22:54 GMT
>> Putting new tyres on the rear seems to be the current best practice.
>> Appears that having, older, less grippy, ones at the back is not a
[quoted text clipped - 13 lines]
>faster, it's because those tyres are working harder, so that's the end to
>put the better ones. On most cars, that's the front.

Except on a Jeep Cherokee, where it is necessary to put one new one on
each axle otherwise the thing sticks in 4 wheel drive off road (Locked
centre diff) mode.
>Reading between the lines, it seems that the "Always on the back" advice is
>aimed at incompetent muppets.

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Steve Hunt - 13 Feb 2005 11:41 GMT
> Putting new tyres on the rear seems to be the current best practice.
> Appears that having, older, less grippy, ones at the back is not a
> good idea as it means the back end will tend to try and overtake the
> front...

Yes... but if the two new tyres are ATs and the old ones
are road tyres (or so-called mud & snow tyres which is
essentially a road tyre - like the OP's GrandTreks) then
the less grippy tyres WILL be on the rear - especially
in the wet - if he puts the new ATs on the rear.  I would
not mix and match tyre types like that, especially as
the OP says he's an enthusistic cornerer.  Another problem
is size difference - even if the nominal size is the
same, tyres from different makers can vary significantly.
Some 4x4 systems don't take well to that though I don't
know the specifics of the Nissan "all mode" system on
the X-trail.  If it was me I would change the lot, ideally
the spare too.  If some of the old tyres are still in fair
condition then it might be possible to sell them on e-bay.

-- Steve
Steve - 13 Feb 2005 18:13 GMT
After all this advice and thoughts, I think Im just gonna stick with either
the Grandtreks or a similar type tyre (more road biased than off road) and
replace them in pairs as they wear.

It is more important for me to stick to the road on a corner and have more
stability at fast speeds than it is to be brilliant off road. Most of the
time that I am off road the GrandTreks do just fine, I was initially
dissapointed when I first got the car......... I drove up a farmers field
that was just stubble after the crop had recently been harvested. Was quite
muddy (ie very slippy to even walk on) and was quite an incline. I couldnt
get up in a striaght line at the edge of the field, but went alongside the
bottom and then drove diagnally across to the point where I wanted to be.
All 4 wheels were spinning like mad but I did get there........... after
thinking about this test of the car/tyres a wee longer I realise that it did
a good job that day and am now impressed. So for how much Im gonna use the
car like this seems pointless getting tyres that are gonna compromise
on-road abilty.

Is there a tyre that will be in the same class as the Grandtreks but better?
ie, are the same in that they are more road biased than off road biased?

Thanks

Steve
Dave Liquorice - 14 Feb 2005 16:41 GMT
>> Putting new tyres on the rear seems to be the current best
>> practice. Appears that having, older, less grippy, ones at the back
[quoted text clipped - 6 lines]
> on the rear - especially in the wet - if he puts the new ATs on the
> rear.

Agreed, having worked out the ifs...

> I would not mix and match tyre types like that, especially as the OP
> says he's an enthusistic cornerer.

Yes, mixing types does seem to be asking for "interesting" effects.
Effects that will vary depending on road conditions (wet/dry) and type
(mud/tarmac/snow/gravel etc). The wandering on mine was really only
noticeable on wet/greasy roads under light throttle, wet white lines
would upset it as well with a definate pull.

> Another problem is size difference - even if the nominal size is the
> same, tyres from different makers can vary significantly.

When I did my front/back swap I had to jack one end up a bit more to
get one set to fit in the gap from which the others came from, more
than the difference in tread wear as well...

> If it was me I would change the lot, ideally the spare too.  If some
> if the old tyres are still in fair condition then it might be
> possible to sell them on e-bay.

There are always wheels or wheel/tyre sets for sale, don't often see
just tyres, at least not on my searches.

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