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Downside to Offroad tires?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=8&t=6064		 Page 1 of 1
Author:  omniphil [ Wed Feb 22, 2006 11:06 am ]
Post subject:  Downside to Offroad tires?
Pardon my newbieness when it comes to off road tires, I'm mostly a car guy :)

Our liberty is still wearing its stock 225/75/16's (Highway All-Season)

If we wanted to go with a more agressive tire like the Revo and lets assume in the same size, What are the disadvantages of an off road tire vs a highway tire? Tread life? gas mileage? noise?

The only thing we really value is gas mileage, Hence trying to stay with the same size (less rolling resistance?). But other factors come into play to like if the tires were taller the gearing would be lower which might help gas mileage?

Am I rambling yet? :) I guess what we're looking for is a better (wider and offroadish) tire that wont hurt gas mileage, or is that not possible?

We do some off roading/trail riding, but 95% of time we're using the jeep for commuting on the highway. And we do get plenty of snow here in the north east (tho the stock tires were very capable in the snow)
Author:  KJ04 [ Wed Feb 22, 2006 11:30 am ]
Post subject: 
The Grabber AT 2 from General tire comes in a P235/70/16 and a P245/70/16 that will fit your stocker priced under $80.00 per tire.
They look like BFG A/T's , and you can see pic's in this tire section.
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=5546

Taller tires are going to lower your MPG, not improve it![/url]
Author:  Troysterr [ Wed Feb 22, 2006 11:44 am ]
Post subject: 
If you were to swap out your stockers for a set of Revos in the same size, the only thing you'd notice is MUCH better traction on wet/dry/icy/showy roads, and better offroad traction. Oh, and a hole in your pocketbook--welcome to Jeeps. :)

Revos are expensive, but worth it IMO. There are other really good tires, though.
Author:  omniphil [ Wed Feb 22, 2006 11:54 am ]
Post subject: 
Troysterr wrote:
If you were to swap out your stockers for a set of Revos in the same size, the only thing you'd notice is MUCH better traction on wet/dry/icy/showy roads, and better offroad traction. Oh, and a hole in your pocketbook--welcome to Jeeps. :)

Revos are expensive, but worth it IMO. There are other really good tires, though.


So the off road tires wont hurt gas mileage at all when used mostly for highway?

Its weird because the 245/70/16 revo is $125 at tirerack and the 225/75/16 is $145?

If I went from the stock 225's to a 245 revo is that going to effect gas mileage?
Author:  Skyjump136 [ Wed Feb 22, 2006 12:00 pm ]
Post subject: 
It is a bit taller so there's no getting around decreased gas mileage. That said, it will be very minimal as the two sizes aren't THAT different. Plus, what you lose in mileage should be more than made up for in traction and stability.
Author:  the1jferg [ Wed Feb 22, 2006 1:42 pm ]
Post subject: 
"What are the disadvantages of an off road tire vs a highway tire? Tread life? gas mileage? noise?"

Off -Road tires are not Legal for street use...Possible exceptions are the BaJa T/A & Super Swamper Types. All these others are just variations of street legal On-Road tires that can be used with limited off road ability.

Remember, everything that makes it more capable off-road makes it less capable and desirable on-road.
Author:  PCTim [ Wed Feb 22, 2006 2:14 pm ]
Post subject: 
omniphil wrote:
Troysterr wrote:
If you were to swap out your stockers for a set of Revos in the same size, the only thing you'd notice is MUCH better traction on wet/dry/icy/showy roads, and better offroad traction. Oh, and a hole in your pocketbook--welcome to Jeeps. :)

Revos are expensive, but worth it IMO. There are other really good tires, though.


So the off road tires wont hurt gas mileage at all when used mostly for highway?

Its weird because the 245/70/16 revo is $125 at tirerack and the 225/75/16 is $145?

If I went from the stock 225's to a 245 revo is that going to effect gas mileage?


First, Welcome aboard! Where in NH are you? I'm right near the border in MA.
Anyways, the stock size I had was 215/75/16. I first went to a 225/75/16 in a Destination M/T, then switched to a 245/70/16 Revo. As far as the sizes go, the 225/75/16 and 245/70/16 are the same height, but the 245/70's are an inch wider. As for the price, the only thing I can think of is that the 225/75/16 is an LT rated tire, where the 245/70 is a P rated tire. The LT would have a thicker sidewall, and be heavier, hence the more expensive price. Let me know if you have any questions.

Hope this helps!
Author:  omniphil [ Wed Feb 22, 2006 3:02 pm ]
Post subject: 
PCTim wrote:
omniphil wrote:
Troysterr wrote:
If you were to swap out your stockers for a set of Revos in the same size, the only thing you'd notice is MUCH better traction on wet/dry/icy/showy roads, and better offroad traction. Oh, and a hole in your pocketbook--welcome to Jeeps. :)

Revos are expensive, but worth it IMO. There are other really good tires, though.


So the off road tires wont hurt gas mileage at all when used mostly for highway?

Its weird because the 245/70/16 revo is $125 at tirerack and the 225/75/16 is $145?

If I went from the stock 225's to a 245 revo is that going to effect gas mileage?


First, Welcome aboard! Where in NH are you? I'm right near the border in MA.
Anyways, the stock size I had was 215/75/16. I first went to a 225/75/16 in a Destination M/T, then switched to a 245/70/16 Revo. As far as the sizes go, the 225/75/16 and 245/70/16 are the same height, but the 245/70's are an inch wider. As for the price, the only thing I can think of is that the 225/75/16 is an LT rated tire, where the 245/70 is a P rated tire. The LT would have a thicker sidewall, and be heavier, hence the more expensive price. Let me know if you have any questions.

Hope this helps!


I'm right in southern NH. Right off exit 4.

Would the P rated tire be ok vs the LT?

Where are the good places to go trail riding around here? :)
Author:  PCTim [ Thu Feb 23, 2006 9:43 am ]
Post subject: 
Wow, I'm only about 20 miutes away (3 exites from the border, 7 exits total).

The P rated should be fine. The one time I had mine out, they worked just fine. I probably wouldn't air them down as much as an LT rated, but I took them down to 22 psi without any issues.

The only trails I have been on are up in the Lakes Region of NH. I was with someone else, so I'm not sure exactly where. Hopefully we can get a run going soon though.
Author:  omniphil [ Thu Feb 23, 2006 9:54 am ]
Post subject: 
PCTim wrote:
Wow, I'm only about 20 miutes away (3 exites from the border, 7 exits total).

The P rated should be fine. The one time I had mine out, they worked just fine. I probably wouldn't air them down as much as an LT rated, but I took them down to 22 psi without any issues.

The only trails I have been on are up in the Lakes Region of NH. I was with someone else, so I'm not sure exactly where. Hopefully we can get a run going soon though.


Was talking with another guy on here via PM. There is a cool place to go four wheeling in Londonderry NH (Exit 4). Its back in the wood so other than the entrance you wont be seen from the road and such. Been there a few times, You will need skid plates to enter tho and they have a large dirt speedbumb of sorts (to keep cars out) and you will drag the frame over in getting in. There usually some atv's running in there. It looked like at one point people would drive out there and dump large trash like washing machines and such. so they made this big dirt mound at the entrance to keep people from using it as a dumping ground.
Author:  ManicMechanicJoe [ Thu Feb 23, 2006 10:00 am ]
Post subject: 
a P rated tire is fine for the KJ...if you look at the ratings a P rated tire is good for minivans and SUVs as well as passenger cars.

If you do a lot of rock crawling I would spend the extra coin for a LT tire just because they generally have thicker sidewalls. The stock goodyear GSA's or SRA's have amazing thick sidewalls (the only good thing about the tire) for a P rated tire. The other thing a thick sidewall is good for is stream crossings. This is something a lot of folks never think about. Take an old junk yard tire and try cutting it. It won't be easy. Now take your garden hose and get it wet. Then try cutting it. Rubber cuts much easier when wet so care has to be taken during stream or water crossings. An LT tire will take more abuse.

If all you're doing is muddy forest trails-get a P-rated tire because it will ride better then an LT tire. LT tires generally see duty on full size pickups and are usually factory equipment on anything 3/4 ton or larger. They shouldn't wear out much faster then a P rated tire because an LT tire is basically a semi truck tire's little brother.

If you want the best tire for off road use get something bias ply...They conform 10x better then a radial to terrain and have VERY thick sidewalls so you can run them at a lower psi. That being said they wear out a lot quicker then a radial and ride rougher and nosier...

The choice is yours my friend-but if you want more info-goto this post I made about tire ratings-it should help you out a little:

http://www.lostjeeps.com/forum/phpBB3/vie ... php?t=5375
Author:  the1jferg [ Thu Feb 23, 2006 12:10 pm ]
Post subject: 
Omniphil,

Remember, tire width and tire pressure is way more important than tread type.

A semi wore out M/T looses capability FAST, especially on-road.

I've seen Land Rovers push the locker button and creep over all kinds of stuff with those wide street tires they sport.


You might look like at tires Joe suggested.

Maybe a wide A/T with side bite blocks. Cooper makes something you might like. Discoverer S/T-C

http://www.coopertire.com/us/en/Product ... ruck+Tires

I can tell you that Discoverer STT is the best looking tire I've ever seen on a KJ


There is a definate diff in the tread bulk & spacing in the same tire between LT and P rated

If you don't go with the "LT", make sure you get the new rubber compound.
My destination A/T's don't even Scuff,cut,scratch, or leave a black mark so far
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