Struggling - Tire Decision

[Sansred]

The 315s are AT4w, not MT. The 265s looked small and out of place, not disagreeing with 315s overkill. I am feeling that thus my post for suggestions.

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[will travel]

People never think about it but Taller tires add weight and additional centrifugal stoping force needed to stop the Jeep
Wight puts strain on the breaking systems that was engineered for a lighter Tires and Wheels .
The 2. 5 lift kit in my opinion is unnecessary for the Jeeping you intend to do .

 

[Camaroboi13]

1 in 10 Jeep people are concerned about tire weight and stopping power. If these things are designed to stop with a 7,000 pound trainer behind them, then I’m sure a few extra pounds on the tires won’t hurt it.

2 in 10 Jeep people use their tires off road.

That leaves 7 out of 10 Jeep people who only use larger tires and lift strictly for looks at the mall.

 

[Ratbert]

If these things are designed to stop with a 7,000 pound trainer behind them, then I’m sure a few extra pounds on the tires won’t hurt it.

Wait, are you under the impression that these things are designed to tow a 7,000 pound trailer?

 

[Camaroboi13]

Wait, are you under the impression that these things are designed to tow a 7,000 pound trailer?

Can’t say I’ve never done it before

 

[will travel]

I have towed lots of trailers and they all have Brakes .
A Jeep pulling a 7.000 lbs Trailer without brakes would be ugly.

 

[6.2Blazer]

Are you saying the ride only got rough after you put the aftermarket wheels on? Or are you saying it rides rough after the lift kit and tires and wheels?

 

[XYJGuy]

I am new and own a 2021 JLU Willys with a 2.5" lift. I had 265/70 r17 and wanted a bigger tire to fill the space and look a little better. Very little off-road, mainly dirt roads, gravel and someday sand/beach. More pavement than anything. Discount Tire talked me into 315/70's (I wanted 295/70 but I like Falken Wildpeak and that size not available), they rubbed, so to fix that I purchased American Outlaw Spike wheels with proper offset, no more rubbing. However, ride got more rough, and I fear I am in a more aggressive size tire than what was planned. I am still in 30-day window so tires can be returned. 315's are a C load range, and all I can find in other slightly smaller tires is E. Feeling overwhelmed on what to do. My goal was to fill some of the empty wheel well space, have it look a little better, but not crush my comfort and mpg's. Open to solid suggestions.

C rated tires will be a more comfortable ride than an E rated tire on road.
Secondly, your tire size is probably perfect for your lift given you went to 34’s with a 2.5” lift.
What we do not know is if you went with AT’s vs MT’s. If you went with an MT, that is your problem. Switch to an AT and you will have a nice smooth road ride with solid off road performance. I switched from MT to AT on my Willys and it was a dramatic improvement. Good luck!

 

[txj2go]

Not really, it'll wear more evenly than overpressurized (wears out the center). Braking is improved. Handling will be less crisp, yes. You can always add more pressure back in if desired.

I bought a sport with its skinny tires, the firmware in the Jeep wants 36psi min. in the tires. I put on Rubicon takeoff tires and ran them at the same pressure but noticed over the long term that the center of the tread wore faster. On my second set of Rubicon tires I've been running them more like 32psi, maybe I could go even lower.
315 are fairly large tires if a person doesn't need the larger tires for offroad. The Sport gearing doesn't work well with large diameter tires, the Willys is only a bit better, so I would recommend tire diameter closer to Rubicon size.

 

[AmericanPatriot100]

I bought a sport with its skinny tires, the firmware in the Jeep wants 36psi min. in the tires. I put on Rubicon takeoff tires and ran them at the same pressure but noticed over the long term that the center of the tread wore faster. On my second set of Rubicon tires I've been running them more like 32psi, maybe I could go even lower.
315 are fairly large tires if a person doesn't need the larger tires for offroad. The Sport gearing doesn't work well with large diameter tires, the Willys is only a bit better, so I would recommend tire diameter closer to Rubicon size.

I have a 2dr sport with 255/85/17s and agree whole heartedly the sports 3.45s hate my 35s! But my gas mileage didn’t change going from the sport 30.5” tires to the 35” tires. I ran the stock tires at 32psi and run the 35s at 28psi. Doesn’t seem to matter in my case, in terms of mpg or drivability.

 

[azwjowner]

I bought a sport with its skinny tires, the firmware in the Jeep wants 36psi min. in the tires. I put on Rubicon takeoff tires and ran them at the same pressure but noticed over the long term that the center of the tread wore faster. On my second set of Rubicon tires I've been running them more like 32psi, maybe I could go even lower.
315 are fairly large tires if a person doesn't need the larger tires for offroad. The Sport gearing doesn't work well with large diameter tires, the Willys is only a bit better, so I would recommend tire diameter closer to Rubicon size.

You can use a tool like Jscan to change the tire pressure setting in the computer. 32 psi is good for Rubicon 33s. You could do 30 just fine, I wouldn't go below 30 on only 33 inch tires.

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