Jason Colon

New guy on the block here. I just bought a 2014 Jeep Grand Cherokee from the dealer, stock. It has 265/50R20s on it . But I want to upgrade, not to mention it needs new tires anyway. In a particular forum, can't recall which, some people mentioned that 275/55R20s would fit...my dilemma, Walmart and most other National tire places are not authorized to put tires on that are not the manufacturer suggested tire size. I measured the front wheel well, and the 275s sure seem like they will not fit the front and seem like they will rub in the back. Some locations say I can put on 295/45/R20, but that will make it wider and shorter, not what I wanted. So, in short, I am looking to max out my tire size, height wise with R20s on my stock vehicle, w/o adding any lift/etc. Also, I live in DC, if you know of any good tire places in the DC/Alexandria, VA area, that would be awesome. Thank you all in advance. * I am bringing this vehicle to my next assignment, Kosovo, another reason I need good tires. I was looking at the Cooper H/T Plus, seemed to meet my needs. Jason

94zj318

I'd stick with the 265's. I guess if you're going overseas and want good traction, then you'd want all-terrain tires vs. the all-seasons that come on it. We have a 2014 Limited, same size tires, and we'll be looking at replacement tires to our stock Goodyear Fortera HL Editions very soon (they're probably original to our Jeep). Let us know what you do end up doing.

dave1123

I'm very happy with my Cooper Discoverer AT3s. They give great traction on all road surfaces and run quiet on the highway, maybe a slight hum above 65 mph. They are classed as an all season tire with excellent traction in snow, sand, and gravel.

94zj318

I have Discoverer AT3's on my '02 WJ, P225/75R16's. The woman who owned my Jeep before me had them put on right before she sold it to me. They're a bit noisier than I'd like them to be (as you noted), but that's only because of the aggressive tread.

Not sure they're available in 20", but I don't think they are.

dave1123

One thing you're going to find out is tire stores won't mount any tire on your jeep that isn't recommended. That's to cover their butts if the tires cause a problem or accident because of being not recommended. You can bypass this by just bringing the wheels and old tires to them and getting whatever you want mounted. Then they are absolved of all liability. OR buy the tires and get them mounted by someone else or yourself. The only problem with this is you won't get the road hazard warranty, balancing, or pro-rated replacement. I deal with Dunn Tire locally and they will put anything on my WJ as long as it's the same size as recommended. My WJ has 245/70R16s on it that are the factory optional size, not the standard. They are 29.5" overall and that's about max for my 2000 WJ with stock suspension.

I think in Kosovo, your going to need slightly aggressive tires that are readily available there. If it were mine and I was going there, I'd switch to a 16" wheel. That gives you more rubber height to absorb harsh roads. 20s are okay for smooth well maintained tarmac.

You can figure overall height by using this formula; width X profile X 2 + rim diameter. [As in 245(9.64") X 70% X 2 + 16 = 29.5"]

94zj318

The factory standard size for the '14 Grand Cherokee is 18", and a P265/65R18 tire. I agree on smaller size for more aggressive tread and better traction.