255/85R16 Toyo M/T review

[little_joe]

azshooter, your 80 looks awesome w/ the paint and tires & wheels!

If you get a chance, I would like to know actual tire height w/ them mounted on your 80. Doesn't need to be precise, I am most interested in actual loaded size within a 1/4".

Thanks.

 

[Nay]

I run my Toyoy 315's at 42-45 psi with no issues, Drives real smooth and quite and straight. Maybe you got a bad set or a tweaked truck Nay.

I would not run this tire at 30psi on the highway. But you can do what you want with your own tires when you find that sweet spot that works for you

I'd call it the difference between Interco and Toyo - every Interco set is a bad set

I'm not recommending 30 PSI to anybody, just saying you don't need those upper end PSI ranges on the bigger tires to satisfy the safety requirement.

 

[Nay]

Obviously Toyo feels a conversion needs to be done .

It doesn't make much sense on the surface - I think the idea is somehow if you have say 2K load rating on a P-metric you'd need 2.5K on an LT, i.e. P-metrics can run at a lower load rating in the same application. That's probably what is wrong in my math as it is implied in the conversion. Would seem to make more sense to just properly state the load ratings

Having said that, a few things are clear to me:

- Load rating does not drop proportionately with PSI, it is on a curve, and cutting PSI in half from max only reduces load rating by about a third (at least on the 35");

- Tall and skinny comes with a drawback - you will have to run higher PSI's and per the disclaimer, this may make the transition from P-Metric to LT-Metric an unfavorable decision for some;

- If I can get a 2,500 lb load rating on 35 PSI and I've kept my rig light, I have nearly 50% headroom when my rig is heavily loaded, so I don't think I'm flirting with disaster. 30 is getting low, the factory at 32 is pretty good.

No 50 PSI in my future, Trxus MT's are not a flat tread like Toyos. At 50 PSI, I think I would be running on about 6" of crowned center tread given at 30 PSI the outer 3/4" of the outer lugs doesn't touch. I've had them at 45 PSI on two different rigs, and it is ugly.

The Toyos are very well designed for typical 80 series use, which is why they are so popular. It's nice to have this chart so that people can actually read a manufacturer recommendation on air pressure that directly applies to their rig. Like I said, I'm not saying go low by any means, you simply don't automatically need high PSI - from a skinny 33's to a huge 40", there is no one size fits all rule.

But I'll agree, Toyo wants those higher PSI for those 33's, and I wouldn't ignore that.

 

[Peluo]

So guys what tire pressure for 285/75 R16? is 38psi a good compromise of comfort/tire longevity?

 

[nakman]

If you're happy with 38 then rock it man. :0

And I run my Toyo 315's at 45 psi on highway, and they're solid. Air down to 17 to wheel.. sometimes drive on pavement still aired down, sometimes wheel still aired up.

If I stayed at a 2-3" lift I would be all over these 255 85's though, I'm kind of jealous I love that size & look and I'm glad they're available in something besides the BFG MT now. I bet those things would be awesome in snow..

 

[Nay]

If you're happy with 38 then rock it man. :0

And I run my Toyo 315's at 45 psi on highway, and they're solid. Air down to 17 to wheel.. sometimes drive on pavement still aired down, sometimes wheel still aired up.

If I stayed at a 2-3" lift I would be all over these 255 85's though, I'm kind of jealous I love that size & look and I'm glad they're available in something besides the BFG MT now. I bet those things would be awesome in snow..

You can get the trxus MT in 255/85, too. Would be a tremendous snow tire. At least if you could air it up enough and still have it be driveable on a rig as heavy as the 80

Corsair's analysis said 38 PSI for those 285's from the Toyo website, so you are probably right on.

It's funny about the narrower tire on an 80 looking good, I just put 1" spacers on my 80 and did not like the look at all, so took 'em off and sold them. Without flares my tires stick out just a bit, but I think the 80's lines serve tall/narrow nicely. With flares I'd want to space them out, but without it is really a nice, clean look with those 255's.

 

[FirstToy]

315 Toyo MT's - around 40psi.

I found this to be just about perfect on the street. I would expect skinnier tires to take a bit more air.
your truck looks great ashooter, very "Botswana meets UN"

 

[re_guderian]

Interesting stuff.

I'll further the hijack and say that I have run my 305/70/16 and my wife's 315/75/16 Mud Rovers at 32 psi and they seem to like it.

I run my 255/85/16 BFG MT's at 35 on the street, 18-ish on the trail. No problems yet. 45 would be bone-jarring...

 

[corsair23]

So guys what tire pressure for 285/75 R16? is 38psi a good compromise of comfort/tire longevity?

If your tires are Toyos then that is what Toyo calls for (assuming I did my math correctly ). I've run 40-42 for nearly the last 2 years with no complaints or issues (including tire wear) other than (as Nay has mentioned often) they are firm but I also run the OME heavy lift all around. Toyo warns about the higher psi resulting in ride harshness at the link above and it, IMO, it is NOT limited to any particular size as Nay states. It is simply a matter of reality when switching from P-Metric to LT tires.

FWIW, I just have my tires rotated and balanced today (they were due to be done) and had the shop put 38psi in them. I'll try that for awhile and see how the rig handles as the drive home was only ~3 miles at under 45mph.


And to the OP. Sorry for hijacking your thread so badly and I just want to say I REALLY like the look of what you have there - The \color, tires, wheels, etc., the whole thing looks great

 

[Nay]

My fault for the hijack

Nice rig, love that color, especially for the desert SW

 

[cruiserdan]

Any tyre with a section width less than 12 inches is a pimple on the ass of life........

 

[ashooter]

Well, back to the original subject of this thread (sort of). I have the 255/85 Toyo M/T's down at 42 psi cold and they handled great this weekend on 250 miles of highway and about 100 miles of dirt, rocks, and (dare I say it) MUD. Not a lot of deep nasty Louisiana gumbo mud, but nasty enough that I was greatly impressed at how they cut right through the stuff and grabbed without the normal sliding back and forth in the ruts like all the AT type tires I've had in the past.

I LOVE these things so far!

 

[24HOURSOFNEVADA]

I've got my 255/85R16 set at 42psi right now. My buddy with a comparable weight 4Runner (Fully loaded and armored) runs his same tire at 32 psi.

Your 80 is very cool and the transformation is great. Run whatever psi gives you the best combination between mileage and wear.

 

[ashooter]

Well, (at 42 psi) I have about 300 miles of highway, 150 miles of dirt/rock roads, and even a few miles of shallow/slimy West Texas mud on these and I have never had a tire that sticks to things better than these things. Again, I'm NOT a rock crawler, so I'm not talking about walking the truck up a bare rock face, but I've been in at least 3 or 4 places where I know my Revos would have slipped and these just stuck to whatever they've been pointed at. They really feel/sound good on pavement, too. I'm very happy with my selection so far!

 

[ashooter]

azshooter, your 80 looks awesome w/ the paint and tires & wheels!

If you get a chance, I would like to know actual tire height w/ them mounted on your 80. Doesn't need to be precise, I am most interested in actual loaded size within a 1/4".

Thanks.

Sorry I didn't check this sooner... The fronts are right at 32.25" high at 42 psi as they sit on the truck. Rear tires are closer to 32.5" because the only weight in the back is a spare tire, some tools, and a jerry can of water. (Plus, I'm too lazy to mess with running different pressures for front vs. rear.)

 

[little_joe]

Sorry I didn't check this sooner... The fronts are right at 32.25" high at 42 psi as they sit on the truck. Rear tires are closer to 32.5" because the only weight in the back is a spare tire, some tools, and a jerry can of water. (Plus, I'm too lazy to mess with running different pressures for front vs. rear.)

No worries, and many thanks ashooter! I'm also glad to hear they are working out so well for you.