2012 Jeep JK Tire Selection Dilemma

With all my posts about tires it’s not surprising that I receive mail asking for opinions and advice on tires. A gentleman named Guy from Washington recently asked for my input. Below are his questions and my replies. My review and comments on the 255/85R16 Toyo M/T on my old F-350 will continue.


Howdy, hope you can help me a bit with a tire selection dilemma: 2012 two-door JK, that I use as a daily driver here in Wenatchee, Washington. Also do a couple of road trips every year, 2000 – 3000 miles each. Hunting. Fishing. Some overlanding. Did the 600 mile WABDR this past summer. I’d like to use the same tires all year, snow, rain, heat.

The two-door JK is a nice platform, I was shopping Jeep JKs online just a few days ago, including the two-door models. Sounds like your Jeep sees a nice mix of uses. As much as I’m a tire aficionado who tests and often owns more than one set of tires for a particular platform, there are advantages to picking a set of all-around treads and using them until they’re ready to be replaced.

Very basic Jeep. Manual transmission, 4.10 gears, aftermarket air lockers front & rear. 1.5″ Teraflex leveling kit (springs).

Sounds nicely set-up. There’s much to be said for lower lifts, and I love manual transmissions. Aftermarket selectable air lockers, presumably ARB Air Lockers, are accessories that offer a level of control over traction and wheel rotation that is only available with selectable lockers.

ARB Air Locker and 4.88:1 gears during setup
ARB Air Locker and 4.88:1 gears during setup

I bought a set of used 16×9″ rims and E-rated 265/75/16 BFG AT’s a week or two after I got the Jeep. Killer deal, $1k for five rims and tires. I’ve put another 25,000 miles on those tires, and they’re getting worn. So I need tires soon. I could just replace them with more 265’s, but they’re a little short.

Several years ago the first aftermarket tires I put on my V8 4Runner were 265/75R16. I agree that 265s are a bit short, most are notably smaller than 32-inches tall. Depending on the tire and tread chosen and the actual height, the advantages to stepping up to a 33-inch-tall tire are quite noticeable. Even with a short thirty-three (32.8″) the approximately one-inch in overall diameter will lift your Jeep a solid half-inch, everywhere. The best lift is tire lift.

I like the 255’s, roughly 33×10’s. Nice! But, I’m afraid they won’t work with my 16×9’s.

You are correct, in addition to being too wide according to the tire manufactures, a 9-inch wheel is a poor choice for a 255 tire for our uses, while a 7–8 inch wheel would be prefect. A 9-inch wheel is also wide for a 265, I prefer to run a 265/7x tire on a stock 7–8 inch wheel. I’ve not shopped for Jeep wheels recently, but I’d image there are many high-quality, original equipment, aluminum take-off wheels for sale on Craigslist. I’ve been a huge fan of the 255/85 size since the early 1990s and have been using them steadily on at least one of my four-wheel-drives since 1998.

New Toyo M/T LT265/75R16E being mounted on 2-door 2005 TJ Rubicon Unlimited
New Toyo M/T LT265/75R16E being mounted on 2-door 2005 TJ Rubicon Unlimited

Simple solution is just 285’s, but… I fear that’s an awful lot of tire for a little two-door JK… Maybe ditch the 16×9 wheels? I do like the way they look, but I could swap to a more narrow wheel & tire combo happily.

Surely 285s will work on your 9-inch wheels and that is a simple solution. Tread choices in 285/75R16 are almost endless. However, I’m not a fan of using wheels that are on the wide end of specifications. For 285s I prefer to run a 7.5-inch (the minimum) or 8-inch wheel, both for how the tire fits the wheel and the narrower overall width. I don’t care for tires and wheels that protrude further than necessary. I’ve run a few sets of 285 tires over the past several years out of necessity or a desire to run a particular tread that was not available in a 255, but I’d almost always prefer a 255/8x if I could get what I’m looking for.

Ditching the 9-inch-wide wheels would be my suggestion regardless of what tire you purchase. Choosing wheels that are at least 7.5-inches wide but no wider than 8-inches, will allow you run any of the tire sizes we are discussing here; 265/75R16, 255/85R/16, or 285/75R16.

Toyo M/T tires, new, unmounted, left-to-right: LT265/75R16E, LT255/85R16E, LT285/75R16E
Toyo M/T tires, new, unmounted, left-to-right:
LT265/75R16E, LT255/85R16E, LT285/75R16E

Have four heavy-duty old style tire chains that are a little big on 265’s and fit 285’s real snug.

One old set of tire chains I have fit both 265/75 and 255/85 tires similarly, I believe both tire sizes use the same chains. My chains are too small for 285s.

And of course I haven’t quite made up my mind re tire type either. The AT’s have done surprisingly well, but I find myself looking hard at the Toyo MT’s and Mickey Thompson MT’s. My son runs 33×12.50 Mickey Thompsons – and they’re terrific off-road, but I’m not that impressed with them on pavement.

When I finish telling the story of using the Toyo M/T on my F-350 the rapid wear might surprise a few readers. I’m a fan of Toyo tires, but when I can, I much prefer a tire that will offer less noise and longer wear. Of course tire wear is often specific to the platform, driver, and use.

There are a set of Mickey Thompson MTZ tires sitting in my shop mounted and ready for use on my Tundra, but have only seen about 2,000 miles of travel. I like them, but I’ve preferred the Dick Cepek FC-II treads I’ve been running for most of the Tundra’s miles. The FC-II (replaced by the Fun Country) has less noise, excellent siping, and have been slow to show wear on everything from an F-350 diesel, the Tundra, and a built V8 4Runner. Of course neither the Fun Country nor the Mickey Thompson MTZ tread are available in the 255/85R16 size.

The biggest decision you have to make is tire size. If you chose either a 265/75 or 285/75 your choices are many, both a blessing and a curse. If you decide to try a set of 255/85R16 rubber, then it will be relatively easy because the choices are relatively few.

If the 255 size wins, and you decide you don’t want a loud or faster wearing mud-terrain tire (Maxxis Bighorn, Toyo M/T, or BFG KM2), I’d suggest you consider a set of Cooper S/T MAXX. The S/T MAXX has only been manufactured in the 255/85R16 size since the first quarter of 2014. I’m currently running a set in the 255/80R17 size on my 4Runner.

Copyright © 2014 James Langan/PhotoWrite Intl.

Dick Cepek and Mickey Thompson Change Load Range D For E

Some of the great load-range (LR) D enthusiast tires are going to be improved to load-range E designs. This is only an improvement if one needs the higher load rating, and can be a negative if you don’t (see Wheels, Tires, and Sidewalls from Jan. 2012). I understand manufacturers’ position, if they make all or most of their heavy-duty light-truck (LT) tires load-range E, the tire can be used for stoutest pickups down to the smaller, lighter rigs. I argue that these stiffer, less flexible tires are not ideal for many lighter 4WDs which are typically daily-drivers that rarely haul or tow maximum loads, and would benefit from the better ride and off-pavement traction that more flexible tires offer. There are many applications where a load-range D or C (remember those) are the best choice. I view the reduction and possible elimination of the LR D tire choices similarly to the needless super-sizing of everything in the USA.

Bed full of load-range D, 255/85R16 tires.

I also see similarities to the slow death of the LT255/85R16 size. There is still a small market for this fantastic 33×10-inch tire, and many 255/85 tires that were all LR D five years ago, have become LR E designs. In support of this 255/85R16 change, I do think most trucks running this size are heavy-duty, full-sized pickups that are used as such, and the added capacity and reduced flex is a positive. Unfortunately narrower tires don’t appeal to the masses (strike 1), few new trucks are made with 16-inch wheels (strike 2), and the perfect 17-inch 255/85 replacement, the 255/80R17, is available in one tire (strike three), the BFGoodrich KM2 mud-terrain.

Dick Cepek Mud Country LT285/75R16D, with 3-ply sidewalls.

The Sea Change In Load-Range Continues

Recently I noticed that two of my current favorite mud tires, the Dick Cepek Mud Country and the Mickey Thompson Baja MTZ, are losing their load-range D rating in favor of the LR E in a couple popular sizes.

The Mud Country in 285/75R16 and the MTZ in 285/70R17 are switching to a load-range E rating. Both of these tires/sizes were load-range D, with 3-ply sidewalls, a perfect combination for many enthusiast applications. I currently own a set of each of these treads and love the 3-ply sidewalls combined with a load-range D casing. The new LR E offerings will surely offer less sidewall and/or tread flex (bad off-highway, good for tonnage) and be firmer riding during lightly loaded daily use. How stiff is the question, as not all LR E tires are created equal. Some are pretty flexible like the BFG KM2, while others like the new Cooper S/T MAXX and Toyo M/T are quite stiff.

The LT285/70R17 Mickey Thompson MTZ: Stout 3-ply sidewalls, serious sidebiter lugs, and load-range D construction all in one package. I’ll miss this combination when my current set needs replacing.

If you think I’m some kind of tire nut who likes fetish tires (well…) there has been and likely still is plenty of market and demand for good, load-range D tires. The currently popular, practical, and useful 285/70R17 size has several load-range D offerings. A search on www.trierack.com recently listed twenty-eight 285/70R17 tires; 14 of which were LR D treads, 7 were LR E, and 7 were P-rated tires. These LR D designs were not duds, and included some of the best or most popular off-highway enthusiast tires currently offered, including: Dick Cepek F-C II, BFGoodrich KM2 and All-Terrain, Goodyear MT/R with Kevlar, and Goodyear DuraTrac. For years BFG has offered their ever-popular All-Terrain in both load-range D and E flavors in both the 16-inch and 17-inch 285 mm sizes. I respect BFG for seeing and filling this need, and not forcing everyone who wants a 285 to run a load-range E tire. There is a difference.

Does this mean that I will no longer buy certain niche tires once they’re not available in LR D? Probably not. While I prefer a LR D tire for most of my uses, my primary criteria for light-truck tires is that I like the tread and overall characteristics, they balance well, and the chassis I put them on likes the tire. All of these are equally important, any missing ingredient can make a tire undesirable for the specific application—a deal breaker. After these metrics I prefer and will take a load-range D if I can get it, but will accept a load-range E if it’s not overly stiff.

RoadTraveler, enjoying the tire wear to get there.

Copyright © 2012 James Langan