Off-road Wheels & Tyres for 2012 Jeep Grand Cherokee

[Hounds]

Originally Posted by pcfg

Weighed my 285/50/20 spare which has the same as the car
36.5kg I made my draw and fridge slide and raised it up so it would fit under
Floor I will still have to get everything out to access but not as high to get it up

What was the reason for going the 285/50 and not the 275/55?

In the US by the looks of it there are a number of guys running 275/55 of various makes and models with no rubbing issues.

But then nobody here looks to be running this size but there are a couple running 285/50s.

I just figured 275/55 is only slightly wider and higher than the std 265/50 so should be OK.

[pcfg]

Originally Posted by Hounds

What was the reason for going the 285/50 and not the 275/55?

In the US by the looks of it there are a number of guys running 275/55 of various makes and models with no rubbing issues.

But then nobody here looks to be running this size but there are a couple running 285/50s.

I just figured 275/55 is only slightly wider and higher than the std 265/50 so should be OK.

I didn't want the speedo to be far out seems only a couple of Kim's out. doesn't seem to be easy to reset speedo in oz too hard for jeep dealers

[shannonohalloran]

I am running bfg at 265/65/r18 on mopar rims

[Roachy]

The 275/55/20 is actually larger (in diameter) than the 285/50/20. I had heard that the dealers can recal the speedo through their diagnostic tools when they connect to the diagnostic port.

[Hounds]

Originally Posted by Roachy

The 275/55/20 is actually larger (in diameter) than the 285/50/20.

This was part of my reasoning for going with the 275/55, a bit more wall height to play with when deflating tyres.

151mm vs 142mm according to the online tyre calculator I was playing with.

But I did look under the front wheel arch this morning at that bolt will be mighty close.......

I hope our US friends aren't leading me astray.

[steele blade]

I have the same experience and plans as the OP but I haven't bought the JGC yet. A dealer offered to put the Laredo 18" stock wheels on to a new MY14 Limited in place of the 20" wheels for me. Do you guys think that's a good idea? I am planning on Gibb River Rd, Birdsville and Fraser Island when I have the experience.

[Hounds]

I had the 275/55 LTZs fitted yesterday and no issues.

It does run close to the bolt on the suspension but the fitter said he had seen closer in his day.

I am happy with them. They give the truck a more purposeful stance and will be a million times better off-road than what was on there.

They do give off a much more noticeable hum but it is not intrusive.

I have still not done a speedo check vs the GPS but I will do that over the weekend and see what the difference is.