Vehicle modification: Tyres

[Apocalypse]

A high side wall means you can deflate more.

It’s all about pressure. As you deflate the tyre you apply less pressure to the surface which means you bet more flotation, and a bigger footprint.

The downside is that the sidewalk collapses to form part of the footprint .that means it flexes as you drive. Which causes heat build up in the side wall and delamination of the layers, and tyre failure.

I personally never deflate below 75% of side wall height measured from hard level ground to rim

[XJ Junkie]

Many guys will advocate narrow tyres for deep sand but they are ineffective when compared with wider tyres. It’s all about flotation & an aggressive tread that provides movement.

[Saxj]

It's amazing how many people don't understand the need to deflate the tyres. I've seen Rubicon's with road pressures with both lockers engaged struggle or fail to get through an obstacle, which I then cruise through with properly deflated tyres.

I also find that people are scared to deflate. I'll quite happily deflate my tyres to 0.6 bar and others are scared to go below 1.3 bar (on a Jimny!!!)

[Ricof4e]

It's amazing how many people don't understand the need to deflate the tyres. I've seen Rubicon's with road pressures with both lockers engaged struggle or fail to get through an obstacle, which I then cruise through with properly deflated tyres.

I also find that people are scared to deflate. I'll quite happily deflate my tyres to 0.6 bar and others are scared to go below 1.3 bar (on a Jimny!!!)

With my jimny I never needed to go below 1.2 bar.

[Saxj]

It's amazing how many people don't understand the need to deflate the tyres. I've seen Rubicon's with road pressures with both lockers engaged struggle or fail to get through an obstacle, which I then cruise through with properly deflated tyres.

I also find that people are scared to deflate. I'll quite happily deflate my tyres to 0.6 bar and others are scared to go below 1.3 bar (on a Jimny!!!)

With my jimny I never needed to go below 1.2 bar.

Then you weren't playing hard enough.

[Ricof4e]

It's amazing how many people don't understand the need to deflate the tyres. I've seen Rubicon's with road pressures with both lockers engaged struggle or fail to get through an obstacle, which I then cruise through with properly deflated tyres.

I also find that people are scared to deflate. I'll quite happily deflate my tyres to 0.6 bar and others are scared to go below 1.3 bar (on a Jimny!!!)

With my jimny I never needed to go below 1.2 bar.

Then you weren't playing hard enough.

I play hard. I have two kids to show for it.

[Chris Stoffel]

It's amazing how many people don't understand the need to deflate the tyres. I've seen Rubicon's with road pressures with both lockers engaged struggle or fail to get through an obstacle, which I then cruise through with properly deflated tyres.

I also find that people are scared to deflate. I'll quite happily deflate my tyres to 0.6 bar and others are scared to go below 1.3 bar (on a Jimny!!!)

With my jimny I never needed to go below 1.2 bar.

There is a remarkable difference, with my Samura, between 1 bar and 0.8 bar even, especially if the sand have been churned up by the big 4x4's.

[Rabbiddog RIP 7/6/21]

It's amazing how many people don't understand the need to deflate the tyres. I've seen Rubicon's with road pressures with both lockers engaged struggle or fail to get through an obstacle, which I then cruise through with properly deflated tyres.

I also find that people are scared to deflate. I'll quite happily deflate my tyres to 0.6 bar and others are scared to go below 1.3 bar (on a Jimny!!!)

You drive a small 4x4 that's why

But yes I have seen that as well also with Disco's, bet that is because they a scared of side wall damage, normally due to buying the cheapest AT they can find.

[KurtG]

Isn’t the OEM spec for a Jimny’s tyre pressure something like 0.8 bar because of its diminutive size?

But seriously, with normal SUV spec Hankook I would go down to 1.7 bar and they would be flexing like crazy, now on the BFG I go down to 1.0 on a rocky trail and the tyres hardly flex.

I can bet you R5 of Manny’s money that the Hankook is a better tyre in soft sand

[ThysleRoux]

Hankooks have soft sidewalls - especially compared to BFGs.

[Mad Manny]

Only Toilet paper should come in 2Ply...

[Apocalypse]

Only Toilet paper should come in 2Ply...

If you aren't using 3 ply, you aren't eating the right curries.

[Samaya]

Please correct me if I am wrong...

I heard this a few years ago but not sure of the validity.

The skinny tyres cut deeper into the mud getting to the more solid ground underneath faster. So they dont float on the mud like wider tyres would.

[XJ Junkie]

There’s a reason why decent offroad tyres are all 2 ply. You don’t think manufacturers can easily make 3 ply?

Sidewalls need to be able to flex, otherwise they don’t work well, like BFG

[Mad Manny]

My Cooper ST Maxx are 3 ply...