I'm thinking of reshoeing the Disco II with some nice BFG All Terrains (or
maybe Goodyear MTRs). According to an article on Disco2.com
(http://www.disco2.com/howto/offroader/tyresizes.phtml), I can go up to
245/75 or 265/70 without needing surgery, although the spare wheel carrier
is a bit touch-and-go at that size.

Both these sizes give about the same rolling radius (774 and 777mm diameter
respectively). Anybody have any thoughts on which would be best? I tend to
be more rocky than muddy. Is wider better, or will I regret the loss in
turning circle?

Also, I keep hearing people saying you can put bigger boots on if you get a
suspension lift. For example, an article on ExpeditionExchange
(http://www.expeditionexchange.com/disco2frontcoils/) talks about 265/75s
(that's 804mm diameter, or 9% larger than standard 235/70s) with a 2" lift,
and the Disco2 article also talks about bigger tyres with lifts.

But surely this is a misconception. When the supension is fully compressed,
the tyres are going to be rammed up into the wheel arch just as much on a
vehicle with a suspension lift as without, surely? The bump stops are in the
same place, so why would the lift make a difference?

Thanks for comments,
David.

"David French" <david.not.spam.french@virgin.net> wrote in message
news:40e47421$0$4581$db0fefd9@news.zen.co.uk...
> I'm thinking of reshoeing the Disco II with some nice BFG All Terrains (or
> maybe Goodyear MTRs). According to an article on Disco2.com
> (http://www.disco2.com/howto/offroader/tyresizes.phtml), I can go up to
> 245/75 or 265/70 without needing surgery, although the spare wheel carrier
> is a bit touch-and-go at that size.
>
> Both these sizes give about the same rolling radius (774 and 777mm
diameter
> respectively). Anybody have any thoughts on which would be best? I tend to
> be more rocky than muddy. Is wider better, or will I regret the loss in
> turning circle?
>
> Also, I keep hearing people saying you can put bigger boots on if you get
a
> suspension lift. For example, an article on ExpeditionExchange
> (http://www.expeditionexchange.com/disco2frontcoils/) talks about 265/75s
> (that's 804mm diameter, or 9% larger than standard 235/70s) with a 2"
lift,
> and the Disco2 article also talks about bigger tyres with lifts.
>
> But surely this is a misconception. When the supension is fully
compressed,
> the tyres are going to be rammed up into the wheel arch just as much on a
> vehicle with a suspension lift as without, surely? The bump stops are in
the
> same place, so why would the lift make a difference?
>
> Thanks for comments,
> David.
>
>

Ground clearance between the ground and the diffs?

Lee D

David,

The suspension lift enables you to fit bigger boots without body cutting.
When the suspension is put to work hard, the rear axle moves backwards into
the arch and the front forward. If the tyre "fits" into the arch on normal
settings, when pushed back it should slot in.

However, without the lift, you have the bigger tyre and it wants to move
back into the slot and further (you did either keep your anti-roll bar or
get longer bump stops for 2" lift above I assume!).

The 2" extra rolling radius has to be accounted for somewhere ;-)

--
Neil

On or around Thu, 1 Jul 2004 21:29:19 +0100, "David French"
<david.not.spam.french@virgin.net> enlightened us thusly:

>I'm thinking of reshoeing the Disco II with some nice BFG All Terrains (or
>maybe Goodyear MTRs). According to an article on Disco2.com
>(http://www.disco2.com/howto/offroader/tyresizes.phtml), I can go up to
>245/75 or 265/70 without needing surgery, although the spare wheel carrier
>is a bit touch-and-go at that size.
>
>Both these sizes give about the same rolling radius (774 and 777mm diameter
>respectively). Anybody have any thoughts on which would be best? I tend to
>be more rocky than muddy. Is wider better, or will I regret the loss in
>turning circle?

the disco isn't over-endowed with turning circle to start with. Mine's on
225/75R16, but that's a Disco 1.

It depends on what you have in mind, really. if you're after flotation
effect in soft going, then you can't have 'em too wide. If you're not
really likely to go swamp-crawling, then I'd stick with standard-ish sizes.
I had 10.5" tyres on the 110, but it wasn't noticeably better off-road
(insofar as I tried it) than other 110s on standard-width rubber.


>Also, I keep hearing people saying you can put bigger boots on if you get a
>suspension lift. For example, an article on ExpeditionExchange
>(http://www.expeditionexchange.com/disco2frontcoils/) talks about 265/75s
>(that's 804mm diameter, or 9% larger than standard 235/70s) with a 2" lift,
>and the Disco2 article also talks about bigger tyres with lifts.
>
>But surely this is a misconception. When the supension is fully compressed,
>the tyres are going to be rammed up into the wheel arch just as much on a
>vehicle with a suspension lift as without, surely? The bump stops are in the
>same place, so why would the lift make a difference?

depends on how the lift is achieved, I suspect.
--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"The great masses of the people ... will more easily fall victims to
a great lie than to a small one" Adolf Hitler (1889 - 1945)
from Mein Kampf, Ch 10