GX470 Skinnies

[deadbeat son]

It shouldn't be surprising you lost MPG when going from a 31" tire to 33". My post was regarding width only. i.e. 235/85/16 vs 265/75/16. Both are roughly 32" tires but one is narrower.

255/75/17 isn't a 31" tire, it's a touch over 32". It's taller than both a 265/75/16 and a 235/85/16, I've ran all 3 sizes on my Tacoma. But yes, it is smaller than a 285/70/17 in both diameter and width.

In my experience, the 255/75/17 is a great size for the various Toyota platforms. As a bonus, they're widely available in a load range C tire. The weight savings probably helps fuel mileage more than a difference in width. Unfortunately, the KO2 is not available in that size.

 

[p nut]

255/75/17 isn't a 31" tire, it's a touch over 32". It's taller than both a 265/75/16 and a 235/85/16, I've ran all 3 sizes on my Tacoma. But yes, it is smaller than a 285/70/17 in both diameter and width.

In my experience, the 255/75/17 is a great size for the various Toyota platforms. As a bonus, they're widely available in a load range C tire. The weight savings probably helps fuel mileage more than a difference in width. Unfortunately, the KO2 is not available in that size.

Yup, that's my mistake. 255/75/17 is ~32" (GY has the Duratrac at exactly 32", while KM2 is 32.1"). But my point was, you can't compare two tire sizes with different diameters.

 

[.45 JHP]

Why don't you consider a 34x10.5x17 floatation sized K02? I am currently running this on my 5th gen 4Runner with a relatively mild lift (2.5" in the front) and only a little trimming of the front bumper. The 10.5 width makes it only a smidgen wider than a 265/70, and the taller size will let you dig down into the harder ground when traveling in mud and snow.

 

[DRTYTOY]

I just put BFG KM1 255/75-17's on my 4 runner.


I didn't want M/T's but they were running $134. EA at the time - I just checked tire rack.com and they are now $138 EA plus shipping and I didn't get charged tax.

 

[kerner]

Time to pick up some new shoes for the GX (stock height - stock wheels). I'm planning to go with KO2s and am looking for opinions on skinny sizing. The consensus seems to be that the largest tire that to comfortably fit a stock GX is 265/70/17. I'm in the PNW and the worst my truck ever sees is light snow (6-12"), well packed mud, and summer fire roads. I've always preferred a skinny tire for my purposes. Have and of the GX'ers out there ever "gone skinny"? If so, what are your observations in terms of off-road-ablility and DD performance/safety?

Here are the sizes that I'm looking at (all load E):
265/65/17 - d=30.56" w=10.43" sw=6.78" -[FONT=Verdana, Arial, Helvetica, sans-serif] Stock.[/FONT]
265/70/17 - d=31.61" w=10.43" sw=7.3" - I'd like to go skinnier.
255/70/17 - d=31.06" w=10.04" sw=7.03" - I've had great luck with 255's in the past. These seem like the safe bet but they're roughly the same size as stock.
245/75/17 - d=31.47" w=9.65" sw=7.23" - This is where I think I'm headed. Slightly taller and skinnier than stock.
235/80/17 - d=31.8" w=9.25" sw=7.4" - Including these for comparison but I've pretty much ruled them out. Chances are I'd need a narrower wheel.

Right now I'm leaning toward the 245's. Is anyone else running these on a GX? Any thoughts/concerns would be greatly appreciated.

I know this is an old thread, but I'm curious which route you ended up going and how you liked it. I'm looking at 245/75r17s for my new 470, but can't find much info on them with an otherwise stock rig.

 

[NudeLobster]

I know this is an old thread, but I'm curious which route you ended up going and how you liked it. I'm looking at 245/75r17s for my new 470, but can't find much info on them with an otherwise stock rig.

go 255/75/17. I ran this size on stock suspension with no rubbing, and I wheeled the piss out of it.

 

[billiebob]

heres the tires I now run, 7.50R16s Yokohamas ... vs 245/75R16s Goodyear DTs

 

[skrypj]

I ran 255/70R18 Blizzaks this winter on my GX460. They seemed to clear just fine. I am on 285/70R17’s now and had to do some plastic massaging but no trimming yet.

 

[kerner]

Ended up with 255/70r17 KO2s and so far have been really happy with them.