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What tyre pressures do you run?

 
 
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Sway
Gate Opener


Joined: 18 May 2010
Odometer: 21
Location: Chichester, West Sussex



PostPosted: Sun Sep 05, 2010 1:38 pm    Post subject: What tyre pressures do you run? Reply with quote

Got my sammy back on the road after a slight braking issue..

The tyres have lost some pressure which has led to a more comfy ride, but more squirming.

So, not having really thought about it before I now realise I haven't got a clue what pressures to run.

Any tips?

Used mainly on road, so road pressures as well as off road settings would be nice.

Tyres are 31" Insa Sahara turbos, and SPOA.

Cheers guys,

Sam
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lamby2009
Just got MTs


Joined: 25 Nov 2009
Odometer: 271




PostPosted: Sun Sep 05, 2010 3:45 pm    Post subject: tyre Reply with quote

hi would run them at 22 psi try them and then increase or de crease as i run mine off road in deep mud aroud 10 -12 psi
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Jack Tatty
Mud Obsessed


Joined: 16 Jan 2010
Odometer: 2150
Location: Langholm, Scotland


1991 Suzuki Samurai

PostPosted: Sun Sep 05, 2010 5:18 pm    Post subject: Reply with quote

well off road, i run 2-3 psi, could probably get away with 1-2 on the back but its not worth risking it
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Kitesurf
Difflock Royalty


Joined: 28 Feb 2005
Odometer: 14197
Location: Luton, Beds


1994 Toyota Surf

PostPosted: Sun Sep 05, 2010 5:43 pm    Post subject: Reply with quote

I would refer to the manual for road tyre pressures because if you were stopped in Ministry/Police check and they are not within 10% of the guidelines, you could be looking at points on your licence.

Off road, I air down to around 15 PSI.

JT - yours look like flotation style agriculteral tyres. I don't think going that low with MTs and no beadlocks is going to be good.

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Sway
Gate Opener


Joined: 18 May 2010
Odometer: 21
Location: Chichester, West Sussex



PostPosted: Sun Sep 05, 2010 5:50 pm    Post subject: Reply with quote

Kitesurf wrote:
I would refer to the manual for road tyre pressures because if you were stopped in Ministry/Police check and they are not within 10% of the guidelines, you could be looking at points on your licence.

Off road, I air down to around 15 PSI.

JT - yours look like flotation style agriculteral tyres. I don't think going that low with MTs and no beadlocks is going to be good.


Really?

Even with vastly different tyres in terms of size, construction, tread, intended use?

Can't believe I have to go with standard 'recommended' pressures - very likely they'd be plain wrong at best and downright dangerous at worst.

I'll try them at 22-25 for road and play around til I find a good compromise, first p&p session at the beginning of October so I'd better fix my fag lighter and pack the compressor!
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Jack Tatty
Mud Obsessed


Joined: 16 Jan 2010
Odometer: 2150
Location: Langholm, Scotland


1991 Suzuki Samurai

PostPosted: Sun Sep 05, 2010 5:55 pm    Post subject: Reply with quote

Kitesurf wrote:
I would refer to the manual for road tyre pressures because if you were stopped in Ministry/Police check and they are not within 10% of the guidelines, you could be looking at points on your licence.

Off road, I air down to around 15 PSI.

JT - yours look like flotation style agriculteral tyres. I don't think going that low with MTs and no beadlocks is going to be good.


there 8 ply, so they just about support the zook with no pressure, but yes, it probably is a bit too low
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ScottieJ
Off-Road Guru


Joined: 15 Oct 2009
Odometer: 1923
Location: Corsham, The Shire


1987 Suzuki SJ

PostPosted: Sun Sep 05, 2010 8:39 pm    Post subject: Reply with quote

with my 33x12.50r15s I run them at 20psi on road.
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Alex90
Articulating


Joined: 19 Apr 2010
Odometer: 861
Location: preston, Lancashire



PostPosted: Sun Sep 05, 2010 9:41 pm    Post subject: Reply with quote

i have mine at about 33 PSI for the road Shocked and thats 30" muds. im abit worried now with everyone else having them so low in comparison Confused
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ben_moto501
Just got MTs


Joined: 05 Mar 2010
Odometer: 294
Location: Taunton, Somerset



PostPosted: Mon Sep 06, 2010 12:13 pm    Post subject: Reply with quote

I normally run around 20 psi on the road and between 5 and 10 psi when I'm off road! Works fine!!

Ben

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ScottieJ
Off-Road Guru


Joined: 15 Oct 2009
Odometer: 1923
Location: Corsham, The Shire


1987 Suzuki SJ

PostPosted: Mon Sep 06, 2010 12:38 pm    Post subject: Reply with quote

Alex1990 wrote:
i have mine at about 33 PSI for the road Shocked and thats 30" muds. im abit worried now with everyone else having them so low in comparison Confused


I bet that's a harsh ride Laughing Laughing I used to run my old tyres a 27/28psi but it's a lot nicer at 20psi

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Coll455
Just got MTs


Joined: 10 Jan 2010
Odometer: 219
Location: Leyland, Lancs.



PostPosted: Mon Sep 06, 2010 3:20 pm    Post subject: Reply with quote

This is something i've also never really thaught about. On-road i mine feel pretty much as good as Sammy will do, when offroading what sort of pressure should i be running 215/80/R15 Insa Sahara MT's at?
Has anybody got any idea?
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Coll455
Just got MTs


Joined: 10 Jan 2010
Odometer: 219
Location: Leyland, Lancs.



PostPosted: Mon Sep 06, 2010 3:20 pm    Post subject: Reply with quote

This is something i've also never really thaught about. On-road i mine feel pretty much as good as Sammy will do, when offroading what sort of pressure should i be running 215/80/R15 Insa Sahara MT's at?
Has anybody got any idea?
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ScottieJ
Off-Road Guru


Joined: 15 Oct 2009
Odometer: 1923
Location: Corsham, The Shire


1987 Suzuki SJ

PostPosted: Mon Sep 06, 2010 3:38 pm    Post subject: Reply with quote

I never drop my pressure for green laning as there isn't much point, if I'm at a pay and play site depending on the terrain I might drop them but TBH I never really do unless it's in an old quarry. If it's really muddy I don't drop them below 15 as any drop in pressure increases the risk of popping a tyre off a bead and when that happens on a muddy pay and play site it's a pain in the ass to pop the tyre off the wheel and clean all the mud out afterwards, makes quite a mess on my mates tyre machine too Laughing Laughing Laughing
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Kitesurf
Difflock Royalty


Joined: 28 Feb 2005
Odometer: 14197
Location: Luton, Beds


1994 Toyota Surf

PostPosted: Mon Sep 06, 2010 10:36 pm    Post subject: Reply with quote

Sway wrote:
Kitesurf wrote:
I would refer to the manual for road tyre pressures because if you were stopped in Ministry/Police check and they are not within 10% of the guidelines, you could be looking at points on your licence.

Off road, I air down to around 15 PSI.

JT - yours look like flotation style agriculteral tyres. I don't think going that low with MTs and no beadlocks is going to be good.


Really?

Even with vastly different tyres in terms of size, construction, tread, intended use?

Can't believe I have to go with standard 'recommended' pressures - very likely they'd be plain wrong at best and downright dangerous at worst.

I'll try them at 22-25 for road and play around til I find a good compromise, first p&p session at the beginning of October so I'd better fix my fag lighter and pack the compressor!


So why **** did you ask if you know best?

Kitesurf (avoiding a Simon style full scale rant) Phil just wondering why people ask for advice then just ignore it. Rolling Eyes

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Mr Tyre
Mud Obsessed


Joined: 17 Jun 2002
Odometer: 4891
Location: Darlington Co Durham



PostPosted: Tue Sep 07, 2010 2:24 am    Post subject: Reply with quote

Most of my pressure settings are on the basis of start at standard handbook pressures and work from there.Standard Sammy pressures are 20 psi front and rear, load/speed are the same, Standard Jimny (yes i know you have a sammy but the tyre size is the same it's to give you some ideas where to start) pressures are 23 psi front and rear for the same size of tyre with load speed being 26 psi front 29 psi rear which i think you will find are too high for road use.So thats a start for you.Only do any adjustments when the tyres are cold and use the same gauge and only go up in 1-2 psi steps at a time.Off road i would not go any lower than 15 psi but thats me.

But looking at your posts you have worked it out for yourself.
But i hope what i have written will help.
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bertie_bas205
Mud Obsessed


Joined: 06 Jun 2007
Odometer: 4388
Location: ABERDEENSHIRE


1985 Land Rover 90nad

PostPosted: Tue Sep 07, 2010 6:28 am    Post subject: Reply with quote

Laughing@ Mr Tyre n kitesurf







Bertie.
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Twiss
Mud Obsessed


Joined: 18 Feb 2008
Odometer: 6438
Location: Birkirkara, Malta


1993 Suzuki Samurai

PostPosted: Tue Sep 07, 2010 8:34 am    Post subject: Reply with quote

I run mine at around 22-25...

but if I'm going on a long motorway journey I normally pump them up to 28-30

You do get slightly more MPG, but it's quite uncomfortable if you forget to put them down again... and I think the higher pressure leads to more breakages as the tyres absord less of the bumps!

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Twiss
'95 Samurai 416 16v
'92 Maruti Gypsy MG410
www.suzukiclubuk.co.uk
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Mr Tyre
Mud Obsessed


Joined: 17 Jun 2002
Odometer: 4891
Location: Darlington Co Durham



PostPosted: Tue Sep 07, 2010 9:12 am    Post subject: Reply with quote

bertie_bas205 wrote:
Laughing@ Mr Tyre n kitesurf







Bertie.


Bertie, you have to humour people sometimes even at the time i posted.By the way where were you all?
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