What tyre pressure.???

Just got back from 3 days in the high country around Dargo/Bright.

I lowered my tyre pressure when offroad down to 25 PSI not just for better traction but for comfort as well.

Cheers.

I've never been to the Vic High country, but in traprock (ranges around Stanthorpe), and other range areas we always go to 25lb or less. I've seen brand new tyres chipped to almost useless after a single day with the wrong pressures - did it myself at Mt Mee and learned the hard (read: expensive) way.

Bruce,

When it comes to tyre pressures I have a simple formulae that guides, but does not dictate, my tyre pressure choice.

I call it the 25% rule.

I generally start on the highway at around 40psi. When the road turns to dirt I drop the pressure by 25%, that comes out at about 32psi. When the road quality again deteriorates, say turning onto a fire trail I drop by another 25%, I am now down to 24psi. The next step, as I see it is when I go onto soft sand. Once again I drop pressures by 25% that takes me to about 18psi.

Using my system in the high country I would consider that fire trails so I would be running about 24psi

Remember I said this system guides but does not dictate. I would see how it feels and then go up or down depending on how things were going.

It works for me.

Duncs

Hi Bruce,
Also did the high country at the weekend (around McKillops Bridge-Deddick track etc..) and I set the pressure on my 80 series cruiser at 22 psi once off the Bitumen. Gives great ride in the rough, good traction with my Bridgestone A/Ts, no punctures or chipping. Used to believe that 40 psi worked for everything years ago but now I drop my pressures as soon as we get off the bitumen. I think that 25% rule is a good indicator as well and will try that in future.