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  #1  
Old 12-05-2015, 09:26 AM
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Real World QL

Howdy, Folks.
I've decided on a 2015 Summit Hemi and Now Im pondering aftermarket tires.
The street tires on my rental and demo were amazingly silent and great in rainy driving...But they wouldnt last a single day in the rocky trails that I drive EVERYDAY.
So, Im planning for some AT....almost certainly the Falken Wild Peaks that I have loved on all of my persoanl and work vehicles for years.

I've been reading...and reading...and reading...and in my spare time...I do some reading. There is soooooooo much into on suspension, tires, wheels, fitmant, offsets, backspacing, blah blah blah....

I have ready that it seems like the 276/60/20 is the biggest you can go with QL without rubbing.

But I am wondering if that is referring to max turning (locked to either side) while in minimum clearance mode (kneel).

I personally dont plan to do any "Low Crawls" in my summit. When I go off road, I want MORE clearance and thus the higher settings. The only time I see for "Kneeling" is when I am parked...and thus not doing much (if any) maneuvering, and certainly not turning to the stops.

I think I read in a few posts that the front kneels at highway speeds. Still Im not gonna go to max turning angle if Im at 80mph (sounds entertaining, though).

My rudimentary understanding is that QL works something like this:

Mode...........Front......Rear
Neutral............0..........0
Off Road 1......+1........+1
Rock Crawl.....+2........+2
Kneel.............-1..........-1
High Speed.....-1..........0 (nose down)

If this understanding is relatively accurate, Im wondering if I can get away with a 285/60/18 that would be 32.6" O.D. and 11" wide.

It might rub if I am doing Low-Crawls (for some reason) but I would think that in "real World" uses...I should be ok.

But those are my ASSUMPTIONS. (and we all know where that leads)

Im here to learn from those who have more...REAL WORLD experience with the same thought processes that I am exploring.

After all...I dont wanna spend too much time or money...

Reinventing the Wheel.

(Snicker)

Thank you !!!!!

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  #2  
Old 12-05-2015, 02:25 PM
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Re: Real World QL

Don't forget that if you upsize that much, you'll also need to address your spare tire... it's gotta match in diameter. (tire diameter, not wheel diameter)
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  #3  
Old 12-05-2015, 10:24 PM
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Re: Real World QL

Certainly a valid consideration.

However, One of the reasons I love my Rocky Mountains so much is that they are essentially all-terrain run-flats. I took a 1500 mile road trip (500 of that was off-road) with my TPMS sniveling all along but my tires looked and handled perfectly.

A couple days after I got back, I finally took the time to put a gauge on the ties and found one too low to register and another at 8 pounds. Again...looked and handled perfectly.

Soooooo..... My current "plan" is no spare on board. Havent needed one in about 1.3 million miles so far (now Ive cursed myself).

But I will have a like-sized spare at the house.
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Old 12-17-2015, 10:16 AM
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Re: Real World QL

Hello V,

It's time to replace my OEM tires (Goodyear Fortera HL 265/50-20). No changes to my 2014 JGC's stock 20" wheels and stock suspension setup (QuadraLift). For tires I want A/T or M/T tread and to upsize as much as possible - taller tire, and preferably narrower if possible.

I'm starting my reading and reading now. I'm interested in your experience with the Falken Wildpeaks. I found this link, is this the tire you're talking about? WILDPEAK A/T TIRE | Falken Tire — want to know we're talking about the same tire.

Can you tell me more about these Falken Wildpeaks, like how long you've used them, how much and what kind of off-roading and general driving have you used them for, any failures (rock punctures, etc.), in what weather (rain, snow, ice), how's the road noise, how long they last... info like that.

You say you love your Rockies, well likewise, I love my Sierras. I live in California but that makes people think of beach and sun, but many don't realize that winters in Bridgeport CA it can reach 10 and 20 below up there.

Thanks in advance.
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Old 12-17-2015, 10:37 AM
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Re: Real World QL

Yup...thats them.

I am rather emphatic about my Rocky Mountains on my wrangler and on three F350 work trucks that I've mounted them on.

I cant say enough good about them and I cant find anything to snivel about....and no I dont work for anyone in the tire industry. I manage an exotic game ranch (etc)....so I offroad every day. But most of my driving is 80+mph on highways.

Again...none of this is on a Grand Cherokee (dont have one YET). So I cannot comment on what that would be like.

In preparation for Summiting (I wanna buy a summit), I called and spoke with Falken on Monday about their impending launch of the latest generation of the Wildpeak.....the Wildpeak A/T3W. The advance reviews seem promising but the problem with reviews is that the reviews dont say anything negative cuz they dont wanna get cut out of making future reviews for that manufacturer...so I take everything with a pinch (or an e-tool) of salt.

I am, however....VERY excited about the promised 20/32 of tread depth on the A/T3W....that would be PHENOMENAL. We shall see. According to my phone call, the rep says that they just recd word that 20" varieties are supposed to be available to consumers in February.

Anyhow....back to the current generation of Wildpeak....I love them. Technically I have Rocky Mountains, but they are the exact same tire as the Wildpeak...the name is changed for Discount Tire (my preferred resource).

If I had to pick out something negative to say....
At the very beginning, going from the OEM Bridgestone street tires (On a wrangler? WTF???) which were quite nice and sedate....When I mounted the Rocky Mountains, I could notice a very slight "cleating" feel as the sidewall blocks made contact with the surface. Very slight. Kinda like: "That feels odd...what is that? Hmm...is it this? Is it that? what turns at that frequency? Tires...Hmmm...oh...maybe its those deep cleats. duh." that kind of slight.

They absolutely are not mud tires...but I havenet been stuck yet. Maybe cuz I dont try to get stuck....lol.

so thats a whole bunch of words just to say: I like them, A LOT, And I cannot wait to have a Summit to put them on. When I do, they will be LT285/55R20....cuz I want the run-flat capabilities (see my other forum review). If I get myself somewhere where I lose pressure...odds are it wont be convenient for a jack.

I hope this helps.

Happy trails.

V.
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  #6  
Old 12-17-2015, 10:59 AM
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Re: Real World QL

Great info, yes, helpful, thanks V.

>> cuz I want the run-flat capabilities (see my other forum review)

Other than your first post in this thread where you describe run flat (or run very low) did you have another review? I searched on the threads you started and didn't see it. Can you send a link?

Again, thank you.
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  #7  
Old 12-17-2015, 04:22 PM
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Re: Real World QL

I swapped to Cooper Zeon LTZs at 285-50-20 and they rub inside fronts at full lock... if that helps you at all. Otherwise, good fit, but they are really only and actual height of just shy of 30".
2014 Overland with QL
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Old 12-18-2015, 12:20 AM
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Re: Real World QL

Quote:
Originally Posted by Vroooom View Post
I am, however....VERY excited about the promised 20/32 of tread depth on the A/T3W....that would be PHENOMENAL. We shall see. According to my phone call, the rep says that they just recd word that 20" varieties are supposed to be available to consumers in February.
20/32 would be phenomenal. Not sure if I can wait until Feb.

Quote:
Originally Posted by Vroooom View Post
Technically I have Rocky Mountains, but they are the exact same tire as the Wildpeak...the name is changed for Discount Tire (my preferred resource).
Thanks for that clarification, I get it now.
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Old 12-18-2015, 12:22 AM
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Re: Real World QL

Quote:
Originally Posted by CantSitStill View Post
I swapped to Cooper Zeon LTZs at 285-50-20 and they rub inside fronts at full lock... if that helps you at all. Otherwise, good fit, but they are really only and actual height of just shy of 30".
2014 Overland with QL
That's a great looking tire. However, I'm not seeing that size available.

Cooper Tire & Rubber Company - Cooper Zeon LTZ™

Maybe it's discontinued. In 20s they have 275/65 and 305/55 and their ODs are way too big: 34.21" and 33.19".
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Old 12-18-2015, 03:54 AM
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Re: Real World QL

275/65/18 rubs a little. 33's are possible with some effort and offset but will rub with no mods.
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Old 12-18-2015, 07:35 AM
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Re: Real World QL

I'm actually almost through the LTZ's.
45 Kmi on my '14 Hemi Overland. About 25kmi on the Zeon LTZ and 20 on the stock Forteras (that I only drove my first winter on). When I put the Zeons back on in October, I figured they would be good for the winter, and then I'd run then out for the summer. However, I've put 7,000 miles on them since then, and I'm not comfortable with the amount of tread left, for getting me through a central NY winter. Granted, the high temps have not given us any snow YET, but Jan-April 1 still promise to have snow, as always.
I'm checking out the Cooper Weathermaster WSC that is available in our stock size. Looks to be about $150 per tire and a tread pattern I'm comfortable with for snow and ice. I personally prefer AT in the summer and full snow in the winter. The Zeon LTZ sucked me in with an aggressive look, and they were great for summer and dirt, but they were less than stellar in the snow. I attribute most of that to a wide contact patch. Somewhat noisy too. Noise that would have been fine in my old YJ, but not the level I want in the Grand. ImageUploadedByTapatalk1450441948.785095.jpg
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Old 12-18-2015, 07:38 AM
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Re: Real World QL

FYI. This is what I used to run on the YJ, in a 33". On highway, the whah whahs were loooooud. My brother in law lives just off a 55mph road and always knew I was coming once I got within about a half mile of his place. ImageUploadedByTapatalk1450442310.974520.jpg
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