Thread: D4 on Big Red

Somewhere around 18 front and 20 rear when cold with 285/60R18 BFG K02 tyres and a heavy load in the car.

Hi...we're heading up to Big Red and the Hay River Track soon in a convoy of 4. We bought a 2015 D4 with 19" wheels but there's no chance of getting GOE 18" in time. Do you think the 19" will be OK? Should I put AT tyres on?
Thanks in advance...

19 inch tyres are fine. I would get a tougher AT tyre for the sharp stones around Birdsville and other places but the 18 inch size is not essential. My car was fine on WA sand with OEM 19" tyres and the sand around Birdsville is much firmer than WA beach sand. The only soft bits are near the top of the dunes and we did not have any problem with those bits. Only the first few cars through for the season might have trouble.

Here's my contribution to the "D4 on Big Red" club.

Late July this year and it was pretty chopped up with the turn part-way up quite difficult to do smoothly. 265/60/R18 and quite heavily loaded.

I got up easily at 16 psi but earlier attempts at between 22 and 18 psi saw me dig in near the top.
The video is from the second-from-north line and the northern most line was even softer but the turn less chopped up.

[ame]https://youtu.be/KIrNNW8-U7c[/ame]

First time on a big dune. It was absolutely brilliant fun, as you can see by the silly grin at the end.
The cheer squad is my two little nieces, so you may want to turn the sound down a bit.

Cheers,
Scott