D4 Tyre pressure for sand driving with 19"

[DrOsteo]

Hi. Am running OEM 2016 D4 19" rims with Duratrac 255/55/r19. Wondering if anyone knows how low I can run the pressure without risking damage to the side walls? Heading to Fraser in August. Ta

[WhiteD3]

Doc,

I did Fraser in March in my D4 with 19" Scorpions. I ran 20 psi and had no problems on the beach but I did manage to fatally damage two tyres on the inland tracks.

In the last 9 years I've never had any tyre problems or damage up there but the difference this time around was the 19" tyres. My previous D4 and the D3 before that ran 18" and at 20 PSI or less they worked well.

I think the side walls on the 19" bulge a lot more than the 18" so next time I'll be running at >25 or so on the tracks and only going down to 20 or so when really needed.

Cheers.

[Tombie]

Sounds about right for a P construction tyre.
I'm looking forward to reports from those tuning the Maxxis LT in 19". With its stronger sidewalk construction it should fare a lot better at 20psi

[DrOsteo]

Is my tyre an LT or a P?

[LRD414]

Is my tyre an LT or a P?
https://www.beaurepaires.com.au/goodyear-wrangler-duratrac
Duratrac is not an LT.
S speed rating
111 load rating

Cheers,
Scott

[Meken]

We ran 17psi the whole weekend - you do need to pay attention on the tracks for roots but max speed is 30 anyway. It's interesting to watch the tyres on the D4 in front of you - you can really see the benefits of lower pressures

[Firko]

I am too running 19" rims with Duratrac 255/55/r19. We are heading to Stokton tomorrow thinking I might start at 20 psi

[Grentarc]

The Duratracs are XL rated, with only the Maxxis Bravo 980 being LT

[DrOsteo]

I am too running 19" rims with Duratrac 255/55/r19. We are heading to Stokton tomorrow thinking I might start at 20 psi
Please let us know how you go

[scomac]

I have had to go as low as 10-12psi on the beach with the 19"s and have had no issues. But only in really soft sand and I air back up as soon as i get onto the firmer sand.
Cheers
Scott.

[LandyAndy]

I have had to go as low as 10-12psi on the beach with the 19"s and have had no issues. But only in really soft sand and I air back up as soon as i get onto the firmer sand.
Cheers
Scott.

When Aaron40 and I went to Horrocks Beach we were both down to 15psi and struggling,it was very dry and powdery.
They look shocking on hard ground at 15psi so be very careful if you come across anything hard,rocky or extreme cross slope.
Ive since driven on wet sand,highway pressure,one would wonder what the hell I was complaining about in Horrocks.If the sand is wet and firm,I would start at 25psi,its good insurance if you do come across the mentioned surfaces.
ENJOY
Andrew

[Aaron40]

I think you need to go lower on soft sand than 15psi, air back up when you get to any limestone etc to protect your sidewall and rims... As Andrew said we started at 20psi and dug in at 15 psi it was still a struggle... :eek:


When Aaron40 and I went to Horrocks Beach we were both down to 15psi and struggling,it was very dry and powdery.
They look shocking on hard ground at 15psi so be very careful if you come across anything hard,rocky or extreme cross slope.
Ive since driven on wet sand,highway pressure,one would wonder what the hell I was complaining about in Horrocks.If the sand is wet and firm,I would start at 25psi,its good insurance if you do come across the mentioned surfaces.
ENJOY
Andrew