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Tyre Pressures - Off Road

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TazDaz

Member Since: 07 May 2007
Location: South East Essex
Posts: 2858

Tyre Pressures - Off Road

Found this whilst browsing here

In most conditions the vehicle can be driven off-road at the same recommended tyre pressures as on tarmac. However in really muddy, low-traction conditions it can be beneficial to lower pressures slightly to achieve better grip. It is vital that extreme caution is used in these circumstances, as it is possible the tyre can demount the rim if pressures are too low.

I run AT2's and was thinking of trying this out next time off road - I know a few people have commented on doing this in the past (AndrewS springs to mind) but how many others have tried it in the UK in mud?

On tarmac I run at +2 psi over LR spec with these tyres so exactly how much would I need to lower the pressures to make a difference off-road?

3rd Jan 2009 5:10 pm

DiscoStu

Member Since: 09 Apr 2006
Location: London
Posts: 11412

Check out http://www.disco3.co.uk/forum/topic14073.h...2+pressure

There was another thread recently about lower pressures off-road, but can't find it.... Disco 5 HSE Lux
https://www.youtube.com/watch?v=peyiqaJrmMU

3rd Jan 2009 5:15 pm

TazDaz

Member Since: 07 May 2007
Location: South East Essex
Posts: 2858

Thanks Stu

- I saw that thread but apart from NoDo$h can't see anyone else that's tried this

3rd Jan 2009 5:24 pm

POINTYED

Member Since: 22 Mar 2008
Location: BURY,LANCS
Posts: 2758

2014 Discovery 4 3.0 SDV6 HSE Auto Fuji White

hi
used to lower the presure on my stt's on my defender down to about 20psi[a pain in the a

to be honest putting air in and lettin it out again]
when off roading my d3 on mtr's i dont touch em
works perfic
dunc

life is tooooo short.enjoy the moment.dont worry be happy

club BSS

3rd Jan 2009 5:28 pm

Getafix

Member Since: 13 Sep 2007
Location: Melbourne
Posts: 229

2008 Discovery 3 TDV6 HSE Auto Zermatt Silver

http://www.disco3.co.uk/forum/topic28064.html?highlight=

I thought this one was worth reading, but maybe I am biased???

I am regularly using 22 off road, and all is well with the world <*(((<<

3rd Jan 2009 9:18 pm

TazDaz

Member Since: 07 May 2007
Location: South East Essex
Posts: 2858

thanks Getafix for pointing out that thread.

When I get my inboard pump fitted (soon) I think I'll give it a go at 20/22 in mud to see what it's like
then retry the same at normal pressures

Just hope there's no nasties to poke into the sidewalls

3rd Jan 2009 10:32 pm

saw

Member Since: 03 Mar 2008
Location: Walderslade Kent
Posts: 179

I run general grabber AT2 s at around 10 psi for really sticky situations, I am told they can be used at 6 psi but I prefer not to lose the tyre from the rim or run the risk of pinching

4th Jan 2009 3:10 am

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