What pressures do you run in your tyres?

[Jimmyb]

I will be running them low when I get back out there, cause there will be one differance, all that big noice and pig rooting we see in the vidz is not me. I think another reason they may rnu high pressure, so they can hammer down a lot more.

[wiz]

super sticky compound rubber in the U.S. is also common on the rockcrawlers

[maddog]

heh I'm not sure the people watching the DVDs realise that :P

[Wooders]

Althou historically most people think ultra low pressures are cool...there ARE drawbacks asside from retaining the bead (which can the negated with beadlocks)....

When we ran the night stage of TTC we had about 5-6PSI in the 36" TSL's - BUT the problem was this didn't protect the rim from a big hit, whihc then bent the bead ring and unseated the inner bead in a rather unpleasant situation......

We aired up a bit for some of the other stages because we knew we had a tyre size penalty over most of the other competitors.....especially in the mud.....So whilst a lower than 6 PSI gives us a nice bag, we also lose a lot of valuable clearance.

Then there's the offcamber stuff, sidewall flex can mean the vehcile can move a fair bit sideways when you probably don't want it too......

Lastly with some of the current techniques theres more right foot to generate traction via warm rubber - I suspect with slightly more air this is easier to achieve......

anyhows just my ramblings

[sir_camel]

Originally Posted by Wooders

Then there's the offcamber stuff, sidewall flex can mean the vehcile can move a fair bit sideways when you probably don't want it too......

This happened to Antz a bit on that slippery off camber climb at Lithgow two weeks ago. A WHOLE lot of side wall flex on his rear tyre which meant he was 'sliding' into a really precarious position.



I run my 33 MTR's on 8 inch rims at between 32-34 psi on road and generally 11-15 off road.

[Wooders]

Bugger need to type faster

[maddog]

IMO camel, in the situation Antz and the others were in there, you'd be better off with lower tyre pressure so you have more contact surface and grip with the slippery rock (it was slippery due to the angle and a really fine layer of dirt on it, for those that weren't there). Sure, his sidewall was flexed out, and he nearly lost a bead because of it, but I'm not sure that more pressure would have prevented him getting into the trouble he was in, in the first place? If anything he wouldn't have gotten as far as he did.

I could be wrong though It would have been interesting to try the same obstacle with a few different tyre pressures and see what difference it made.