Can I reduce tire size to accommodate 19" factory rims on a new GX460? (1 Viewer)

[Swizerlan]

We just picked up a new GX 460 and it has 19" factory rims. The tire size is 265/55 R19
We live in central virginia and go up in the mountains alot, there is snow and plenty of un paved roads to explore. I prefer a good all terrain tire but it is nearly impossible to find a 265 R19 all terrain.

Today I began wondering if I could downsize to a 255 from a 265.
Would the smaller tire seat ok in my rim?
Its not that big of a difference but I guess this is a pretty un common thing, it seems like most people want bigger tires but thats not an option with my rim.
If I step down to a 255/55 R19 or a 255/60 R19, my options are wide open for all terrains.
Thoughts?

 

[mattds]

you can - that width will seat no problem on a 7.5" wheel...but it would make more sense to try to swap into 18"s - LOTS more tire sizes...

 

[r2m]

Also be aware that your speedometer will will read you going faster than your actual speed, which in turn will stack more miles on the odometer over a period of time. For the tire size change, I'm sure it really won't be that big of a deal.
Going up 1 metric size to a 275/55R19 are the Bridgestone Blizzak's:

https://www.tirerack.com/tires/tires.jsp?tireMake=Bridgestone&tireModel=Blizzak+DM-V2&partnum=755TR9DMV2&vehicleSearch=false&fromCompare1=yes

They look pretty aggressive and are great for winter!
Another option of course, albeit more expensive, is to swap out your wheels also.
For myself, I had the factory 18" wheels. After careful research I found that going to a 17" wheel and tire in the long run of changing tires would be cheaper than just purchasing 18" tires. The tires I like are usually M/T's and for an 18" wheel they start to get quite pricey especially purchasing 5 of them to include the spare.

 

[Swizerlan]

Definitely some things to consider here. I run toyo at3’s on my mdx and they have done great after 20k miles. I used a calculator to determine the mph shift on 255/55 and 255/60, 60 is almost no change. Im looking at either falken at or another set of toyos. Should be a good year round daily driver with occasional weekend excursions. We probably wont push this new gx too hard but I definitely want to avoid ever getting stuck. In the future Im thinking my mdx will get swapped with a used gx, on that I will definitely look into smaller rims and getting the perfect tire. Thanks!

 

[Jstawgn]

4runner stock size is 265/70R17
It would be slightly taller

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