Help

[michael.brewer1234]

Hey i am about to install a 4" superlift and i was wondering what rims i would be able to run. I like the chrome rockstars, but i need to keep the rims chrome. i want to run 33" BFG all terrains. Any help is good help. thanks

[Discount Tire]

Thanks for the question Michael. What size wheel are you thinking about running?

[michael.brewer1234]

17" or 18". and i may run 285/70. just some ideas would be great

[Matt]

Hey Mike... just a suggestion but try finding some pics of 17" and 18" Rockstars. Might be personal preference, but i've found that those wheels don't look good in sizes under 20". Sometimes the 18's look alright, but the spokes look too short and stubby in the smaller diameters.

[michael.brewer1234]

i could see that. could i run 20" rockstars with BFG all terrains or Nitto trail grapplers?

[Matt]

I haven't looked up Rockstars for our Commander bolt pattern, but i've noticed that most 20" wheels are 10" wide which may be an issue. Check out the KMC website to see what widths and backspaces are available for your bolt pattern.

Another thing to consider is tires. The Commander runs relatively small tires to the rest of the truck world.... finding some nice A/T or M/T tires in the diameter you'll want is going to really limit your tire options, especially when combined with a 10" wide wheel (if that's what they come in).

[Sal-XK]

Be careful don't get your self into position were your tire choices are limited and cost a lot more as well.

[Matt]

Was just checking out KMC's site.... They do have a 20x8.5 with either a +10 or +35mm offset. One of those may work with a set of the 305/50/20 General Grabber AT2's (one of the few good A/T tires in that size, i ran them on my GMC Sierra)...

[Matt]

And the 35mm offset on those 8.5s will stick out about 1/4" further than my wheels do, which would look pretty good IMO.

Here's what 305/50/20s look like BTW (i put Cooper Zeons on my truck and the AT2s on my Jeep):

https://theultimatejeep.com/images/imported/2011/04/Novakanes002-1.jpg

https://theultimatejeep.com/images/imported/2011/04/932010009-1.jpg

Not sure how that'll flow the a 4" lifted Commander. If anyone is good with Photoshop I can give them some better side shots so they can put them on an XK.

[michael.brewer1234]

so i could run the 20" rockstars with 305/50/20 General Grabber AT2? is that what you are saying?

[Matt]

With the 4" SL.... i think it may be a good setup.

Not 100% sure though, i'd definitely have to take a closer look at what wheels/tires some of the other 4" lifted XK's are running to feel a bit more confident. The width is the only thing that has me a bit "iffy".

275/60/20 would be another tire size to look at. They're 1" taller than the 305/50/20s, but a good inch thinner. (i'm a fan of the 305s though in terms of looks)

Edit: or 275/55/20.... 275/60 was popular in the GM truck world, but 275/55/20 would probably be a better option for our XK's.

[michael.brewer1234]

would a better option be the mickay thompson classic ll? would that give me more tire options?

[Matt]

What kind of tires do you want to run?

[michael.brewer1234]

either BFG all terrains or Nitto Trail grapplers.

[Matt]

Well the trail grapplers come in 17", 18" and 20" sizes that would probably work with the SL so you have no issues there. 295/55/20s for those rockstars would be interesting....

[Matt]

FYI here's a XK with 4" superlift and 285/70/17 (which are basically the same size as 295/55/20): http://www.jeepcommander.com/forums/showthread.php?t=10817

Here's another: http://www.jeepcommander.com/forums/showthread.php?t=10455
^Those wheels are 8" wide with 4.5" backsapce.

Based on those vehicles, i think 295/55/20 would be a good option if you wanted to run the 20s. And the 20x8.5 w/+10mm offset would put the stance VERY close to that second one I posted. Your tires would stick out just a hair less... but the increase from 285 to 295 wide on the tire would probably make up for that, so they'd be identical to the naked eye.

[Matt]

BTW... helping you out is really making me itch to lift my XK! :(

[michael.brewer1234]

yeah i just am working out the details now. i am getting super excited as well.

[LWM]

I too am looking at the SuperLift, Let me know if you find a great deal.

[michael.brewer1234]

The best i could find was on jackit.com and that is around $1900. also could i run a -12, +18, +30MM? any of those?

[Matt]

Depends on the wheel width... but +18 is probably your best bet if you're in the 8-9" wide range?

[michael.brewer1234]

yeah they are 9". what about 33x12.50x18

[Matt]

..... stick with a 285/65/18

[XK N00b]

..... stick with a 285/65/18

Could you define what this means? I'm not sure that the 285/65 is. Is it tread width/sidewall height in mms? ?/?/Rim Diameter

[Matt]

285 = width (basically the tire width) in millimeters. 285 millimeters wide.
65 = sidewall height as a percentage of the width. So 65% in this case. 65% of 285mm = 185mm.
18 = wheel diameter.

You can figure out the overall tire diameter by just adding the wheel diameter and 2 times the sidewall (So 18" + 185x2mm = 32.56").

A QUICK way to determine tire diameter is this:
(First Number) x (Second Number) / 1270 + (Third Number)
So: 285 x 65 / 1270 + 18 = 32.58"

To determine tire width, just convert mm to inches by dividing by 25.4:
285/25.4 = 11.22

QED:
285/65/18 = 32.5x11.2x18