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Thread: 37X14 tires on an 8" wheel?

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    37X14 tires on an 8" wheel?

    Just wondering if this is kosher, or should be running 10" wide? Am thinking 10" however was just wondering what the true downsides would be (If any?) to running 8" wheels?

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    Ive heard that you should stay within 4 inches of tire width for rim width

    But I would think that having a narrower tire would give you more rim bead pressure and at lower tir pressures a more balloon tire contack patch since it would pull your tread around more

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    i'm running 36x13.5" iroks on 8" rims. i run my air pressure at 14 psi to keep a decent contact patch. i feel it gives me a little more sidewall traction on the narrow rim. i like it.
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    Thanks folks... I think I will stay with the idea of going with a 10" wheel.

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    It's fine, the sidewalls will bulge a bit more but will also help to keep the bead seated at lower pressures. If and when you do a DIY weld on beadlock kit the rim will effectively become a 9" wide rim because the inside of the tire beads will sit on the outside of the new rim.

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    i just out 33x13.5 super swappers on 10s, while doing so i noticed that on the tire itself it states min rim width 10inch first time i ever noticed it.

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    I was running 38x15.5 Cepeks on my 8.25" H1 rims without issues.

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    10" will be nicer on the street but 8" will be better on the trail.
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    Well.... We'll see how it goes. I ordered my IROK's last night (37X14X16) and i just picked up a set of 16X8 wheels this AM.... Will know more once everything is together and is ready to roll.

    Thanks all for the info.

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    did you get steelies and what's the bs?
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    Iv got 35X15 super swampers, Bias plys. Running on a 15X10 rim. I can deflate to 5psi easy withought popping the bead off. Thats the luxuries of having wide bias ply TSL on a skinnyer rim. i can go lower than 5 but i havent played with it as much as i have at 5 psi.
    love my 2.5

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    Rim width is more important than many think, my mind set has always been anything up to a 12.5 wide 8 inch rim, anything 12.5-15 wide a 10 inch rim 15-18 wide 12 inch rim over 18 14 inch rim. I've run almost every tire out there up to 46 Baja Claws (14 inch wide rim or nothing for snow) but a narrow rim under a fat tire actually creates more leverage on the bead and there is a better chance of it coming off at low pressure. The two sets of tires I have now for my Tj are 13.5 wide 39 Krawlers and they are on 9 inch wide beadlocks and a set of 16.5 wide 39 Pitbulls for snow and they are on 12s. it the top pic I'm running about 1-1 1/2 lbs of air.

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    here is a shot of my TJ on the Pitbulls.


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    Damn that's a nice looking rear end! And a BBC plate to match... How I miss you!
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    39x14.50 -17" on 17x8.5" H2 wheels and they run great at 20 psi on the road and down to 6psi on the trail and never lost a bead.

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    Fawk i miss the Okanagan.. I spent about 7 years back in the '90's and if it wasn't for work, i'd still be there.... Spent all my spare time up in behind Westbank, in Myra and Mcullough (Although back then it was on a Mtb Bike!!) pre-Forest fire that destroyed the KVR. Epic Rides!!!

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    I'm running, or going to be running, 15 wides on 8.5 wide H2's. I think you'll be happy with your choice. And don't listen to Al, he put leaf springs on a TJ.
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