Tyre Pressure for Sand/Gibber driving

No, he is talking Gibber(ish).....LOL


Gibber = Red/brown rocks strewn across the desert landscapes some millions of years ago as a result of volcanic activity. Some rocks are small but some no bigger than a fist.

Bro, I read differering origins of gibber, including some volcanic.

Gday Off-track,
I with you on this one,I too have done thousands of km,s on rough roads with no puctures at these pressures with good quality tyres.I dont know were letting tyres down for rough roads comes from.I would like to here from someone who runs lower pressures for thousands of km,s without having flat tyres .
Cheers Guy

Hi Guy

Like most others here I have done many many miles on rough roads - including at least a dozen birdsville runs and I am one who has not had any flats , whereas most of those I travel with who have not lowered there pressures have had - and usually they don't lower speeds as well.

It comes from this explanation , when you travel on stony roads , at any given time there is less of the tyre contact patch in contact with road material (because it is uneven).
The vehicle still weighs the same , so by definition you have higher point pressure on the rubber that makes contact.

This leads to fractures and chipping.

With good tyres you will get away with this longer - but you could also do better.

Gibber...also a colloquial word used in Central Australia by locals who want something from you.......LOL

This is absolutely correct but don't use a pressure. Thats is to say for most 4wd tyres and loads, 28 psi may be close to correct. For other tyres, loads and cars it may not. Use a 20% deflation or 220 to 240 mm long footprint and slow doen to less than 85 kph. ie 20% slower