Thread: Are original general grabber tires suitable for Simpson xing

I agree with Numpty on the pressures, I haven't had the chance to run the 130 on sand since I've had the 255s on it but have crossed the French Line on 235s running tubeless on the original 6.5" rims and the Hay track on 7.50s with tubes. I think when tubeless I ran 20 front and 24 rear. With tubes however I had to run 33 in the rear due to tube problems. At no time did I get stuck (except for a brain fade in Lake Poeppel) and only needed to reverse down a hill on the one occasion trying to get up the northernmost climb on Big Red (got up every other one okay). Had to drop the rear to 26 before it would climb it.
Also I think a lot of people confuse momentum with speed.

Originally Posted by numpty

Not disputing Rovercares comments, but Chenz was talking about the Madigan Line and not the usual Simpson tracks. Some may argue, but they are a different kettle of fish.

When letting tyres down for sand driving, I usually start at 22 and so far, have not had to go lower.

That's much the same pressure as I ran on the Madigan, Hay River and QAA Line - we didn't have permission to traverse the Qld SD NP so finished along the QAA.
No trouble cresting the sand ridges (not dunes) and negligable wheel spin.
Tyres were 235x85x16 BFG AT's.