Wheel offset to get optimal tire poke?

[toddarama]

-12mm doesn't means anything without knowing the wheel's width for reference.

Wheel width itself doesn't mean anything without the tire cross section. The industry rule of thumb is that for every 1/2" change in rim width, the tire's section width will correspondingly change by approximately 2/10" (stolen from tirerack.com).

So to get a 100% accurate answer you would need wheel width, tire cross section and offset. For the same offset and tire cross section, the difference in poke between a factory 7.5" wheel and a 9" wheel would be 3/10".

Also, to get a completely accurate answer, you'd need specs on the tire that provide the baseline wheel width the manufacture uses for the cross section measurement. Then you 'd have to adjust the cross section based on your targeted wheel width vs the baseline.

Sponsored

 

[Vtur]

Wheel width itself doesn't mean anything without the tire cross section. The industry rule of thumb is that for every 1/2" change in rim width, the tire's section width will correspondingly change by approximately 2/10" (stolen from tirerack.com).

So to get a 100% accurate answer you would need wheel width, tire cross section and offset. For the same offset and tire cross section, the difference in poke between a factory 7.5" wheel and a 9" wheel would be 3/10".

Also, to get a completely accurate answer, you'd need specs on the tire that provide the baseline wheel width the manufacture uses for the cross section measurement. Then you 'd have to adjust the cross section based on your targeted wheel width vs the baseline.

That was my point. You didn't indicated the width, just the tire size and offset.

 

[Vtur]

I’m going to have to sit down and play with this on a computer. I’d like to eventually get new wheels and rid of my spacers. Debating on going from 35 to 37 but I think the 35s fit the Gladiators nicely. I really like the AEV Borah Duelsport wheels but I think those have +25 offset. I guess you need to figure how much tire poke you want and work backwards to find the right wheel/tire combo?

The JK version has +4 offset if you like more polk. I like the +25 Borah setup on the Rubi/Mojave, but I'm running the JK version because mine is an Overland with the narrower axles. This gave me nearly the same contact patches and tire clearances. However, mine has more tire polk duebto the narrower flares.

 

[Trollboogie]

315 x 70 x 17 with a +10 offset 8.5 wide wheel. Mojave axles.

 

[Dougstdig]

I’m going to have to sit down and play with this on a computer. I’d like to eventually get new wheels and rid of my spacers. Debating on going from 35 to 37 but I think the 35s fit the Gladiators nicely. I really like the AEV Borah Duelsport wheels but I think those have +25 offset. I guess you need to figure how much tire poke you want and work backwards to find the right wheel/tire combo?

Keep in mind, when they sell a 370 modified vehicle (JL or JT) it comes with their wheels and 37” tires.

 

[MojaveMat]

Keep in mind, when they sell a 370 modified vehicle (JL or JT) it comes with their wheels and 37” tires.

I bought my Mojave used with 7k miles at a dealer. Still finding all of the stuff the previous owner did. I did notice the other day there is a AEV suspension spacer lift. Is that where the stock Mojave lift comes from? I thought it was like a 2.5” suspension lift. Just trying to figure out if I have an additional 2” to work with or not? If that’s the case, 37s should be no problem.

 

[Dougstdig]

I bought my Mojave used with 7k miles at a dealer. Still finding all of the stuff the previous owner did. I did notice the other day there is a AEV suspension spacer lift. Is that where the stock Mojave lift comes from? I thought it was like a 2.5” suspension lift. Just trying to figure out if I have an additional 2” to work with or not? If that’s the case, 37s should be no problem.

I'd purely be speculating if I said I knew.

I do know that the factory lengthened the jounce bumper tubes on the Diesel models so whether or not that added a spacer someone with a Mohave that's checked will have to chime in. Now I can say that the Rubicon models sit a touch taller than non-Rubi models and from what I understand the Mohave's sit a touch taller than the Rubicon's. Whether it's 2" taller than a sport or overland...I have no Idea.

 

[b-roc]

I bought my Mojave used with 7k miles at a dealer. Still finding all of the stuff the previous owner did. I did notice the other day there is a AEV suspension spacer lift. Is that where the stock Mojave lift comes from? I thought it was like a 2.5” suspension lift. Just trying to figure out if I have an additional 2” to work with or not? If that’s the case, 37s should be no problem.

If you have the aev 2 inch spacer lift, then 37" should not be a problem. (Even states that on the AEV install instructions)... and I am on an AEV Spacer Lift with 37's ... if that helps

As far as the 1 inch stock lift of a mojave is concerned, my understanding is that it is primarily from the springs ... with that said, you will also notice that the mojave has the least factory rake of the gladiator trim levels, which has always made me wonder if the "factory lift" over the rubicon is mainly in the front axle ?‍

 

[Barnaby’sdad]

AEV with the JL offset (couldn’t tell you what it is off the top of my head) with 315/70-17 is the perfect amount of poke, in my opinion.

Stock JTR:

AEV:

 

[MojaveMat]

Would this be an accurate comparison for my Mojave setup with 1.5” spacers to new wheel offset same tires no spacers? Mojave wheels are offset +37?

 

[toddarama]

Would this be an accurate comparison for my Mojave setup with 1.5” spacers to new wheel offset same tires no spacers? Mojave wheels are offset +37?

Those numbers look about right. If your current set up is a wheel with 37mm offset (about 1.46") and 1.5" spacers .. going to the same width wheel with 0mm offset and no spacers would result in 0.04" less poke.

 

[MojaveMat]

Those numbers look about right. If your current set up is a wheel with 37mm offset (about 1.46") and 1.5" spacers .. going to the same width wheel with 0mm offset and no spacers would result in 0.04" less poke.

From what I was able to find online, and in the forums, +37 is the offset for the stock Mojave wheels. Looking at black rhino legions 17x9 with 0 offset, using same tires. Based on the tire spec sheet it says 8.5-11in rim approved width…I’m assuming those would work with 35x12.5R17LT Falken Wildpeak M/T?

 

[toddarama]

From what I was able to find online, and in the forums, +37 is the offset for the stock Mojave wheels. Looking at black rhino legions 17x9 with 0 offset, using same tires. Based on the tire spec sheet it says 8.5-11in rim approved width…I’m assuming those would work with 35x12.5R17LT Falken Wildpeak M/T?

If you look at the tire spec sheet, it also tells you that they use a 10" wide wheel to measure the 12.5" profile. A 9" wheel should reduce the cross section by something like 0.1". The 17x9 wheel should be perfect with the 35x12.5LT17 Falken Wildpeak M/Ts.

 

[MojaveMat]

If you look at the tire spec sheet, it also tells you that they use a 10" wide wheel to measure the 12.5" profile. A 9" wheel should reduce the cross section by something like 0.1". The 17x9 wheel should be perfect with the 35x12.5LT17 Falken Wildpeak M/Ts.

Awesome, thanks! Do you know what it means when some wheels, like Black Rhino, have a bolt pattern of “5X114.3/5X127”. Does that mean an adapter is required for 5x127?

 

[Dougstdig]

From what I was able to find online, and in the forums, +37 is the offset for the stock Mojave wheels. Looking at black rhino legions 17x9 with 0 offset, using same tires. Based on the tire spec sheet it says 8.5-11in rim approved width…I’m assuming those would work with 35x12.5R17LT Falken Wildpeak M/T?

When you increase the width of a wheel it Muddy's the water a bit. Maybe this chart will help.

When moving up to a 12.50 wide tire, an 8.5 width wheel is kind of an unofficial standard. Can you move to a 9" wheel sure. Can you mount a 12.5" tire on a stock 7.5" wheel sure. An 8.5 " wheel gives you enough width to prevent the crowning of the tread, while also keeping the wheel narrow enough to be protected by the tire bulge so you're less likely to scratch it up. The selection of 8.5" width wheels seems to be far greater than the others. It just seems to be a happy medium.

Sponsored