20 inch wheels on LIMITED
- Thread starter T4Fun
- Start date
Jaker
New member
00Jay
New member
Just an FYI for everyone thinking that 275/55R20 is ok to run on the stock 20"x7" wheels because Discount Tire said so...the Discount Tire in Tempe, AZ told me that there wouldn't be any worry about with a 275/60R20 Michelin M/S2 fitting on the stock wheels too. I disagreed, came home and found that Michelin only specs the tire to fit 7.5"-9" Wheels (LTX M/S2 | Michelin Tires).
As for approved 275/55R20 tires on the stock 20" wheels, it would be nice to know how much testing has been done with this setup.
As for approved 275/55R20 tires on the stock 20" wheels, it would be nice to know how much testing has been done with this setup.
kmiller8821
New member
My bridgestone dueler's are also wearing out, at 35k miles, I'm down to the first tread wear indicator so I've started searching. My discount tire has also told me that I can use P275/55R20 on my stock 20x7 limited rim. I've just finished reading this entire thread, and I'm now a bit paranoid. I know that several other members have done this and are still alive - so that's a plus, but I'm still uncertain. I keep reading about "tires could bead under load" - what type of load is this referencing? I don't tow anything and I rarely go off-pavement (slight of a fire road, or a dirt road to my deer stand).
So, could someone clarify "could bead under load" - please.
Thanks,
Ken
Info from the internets:
Tire Width
You cannot accurately measure a tire's width without having it mounted on a rim. A wider rim will cause a larger tire width, and a narrower rim will create a smaller measurement. In general, a tire's width will change by 2/10 inches for every 1/2 inch change in the rim width.
Rim Width
Some auto enthusiasts choose rims for their aesthetic value, but for top performance tires need to be fitted to specific rim widths. In each tire there is a flex point in the sidewalls that varies according to rim width. If the rim width is too wide, the flex point moves toward the rim, causing a buildup in heat in the lower sidewall. Should the rim be too narrow, heat can build up in the shoulder. Both situations can decrease the life of the tire.
Aspect Ratio
This measurement describes the ratio of a tire's height to width after it has been installed with and inflated on a rim of the correct size. Depending on your intentions for your automobile, you will need to decide between a high aspect ratio or a low aspect ratio. The former creates a softer ride while improving deflection under load; the latter makes for a harsher ride but has a quicker response time and wider footprint.
Advantages and Disadvantages of Wide Rims
Once installed, wider rims can create a straighter sidewall, which in turn stiffens it. For the driver, this means a more responsive steering system as well as the ability to make tighter corners. However, stiffer sidewalls can cause more force and result in more wear on the suspension parts and chassis, making for a bumpier ride. The tire itself is also more exposed to damage.
Tire Width
You cannot accurately measure a tire's width without having it mounted on a rim. A wider rim will cause a larger tire width, and a narrower rim will create a smaller measurement. In general, a tire's width will change by 2/10 inches for every 1/2 inch change in the rim width.
Rim Width
Some auto enthusiasts choose rims for their aesthetic value, but for top performance tires need to be fitted to specific rim widths. In each tire there is a flex point in the sidewalls that varies according to rim width. If the rim width is too wide, the flex point moves toward the rim, causing a buildup in heat in the lower sidewall. Should the rim be too narrow, heat can build up in the shoulder. Both situations can decrease the life of the tire.
Aspect Ratio
This measurement describes the ratio of a tire's height to width after it has been installed with and inflated on a rim of the correct size. Depending on your intentions for your automobile, you will need to decide between a high aspect ratio or a low aspect ratio. The former creates a softer ride while improving deflection under load; the latter makes for a harsher ride but has a quicker response time and wider footprint.
Advantages and Disadvantages of Wide Rims
Once installed, wider rims can create a straighter sidewall, which in turn stiffens it. For the driver, this means a more responsive steering system as well as the ability to make tighter corners. However, stiffer sidewalls can cause more force and result in more wear on the suspension parts and chassis, making for a bumpier ride. The tire itself is also more exposed to damage.
DannyLlama
Elite Member
Its not drama, its a safety concern. Always better be safe than sorry, especially on tires, the first line of defense in a car.
I ended up with 18's and super happy. The rim it self is too narrow, why bother?
Well said. But I don't think the safety issue is about the tire blowing up or the bead coming appart. It's about some potential for premature wear, perhaps. Something that is likely observable and probably controllable through tire pressure adjustments. People run mud tires in the winter, some run super high pressure to get better MPG, others put on lifts and big tires, all of which can be construed as "safety concerns" if we are conservative enough about what constitutes safety. This 7 vs 7.5 issue is likely a lesser safety concern than these quick examples. But I get it, specs are specs and why jeopardize you and your family...that's a compelling arguement which I expect to ignore with my next set of tires mounted on the stock 20s.
DannyLlama
Elite Member
LOL!
You aren't the first and so far no one has reported any catastrophe's. God willing, nothing will happen to you or your family. Again, that was just not worth chancing for me.
Tire separation is another concern, again hopefully not. Though, at enough force, it's possible. I like to eliminate all potential dangers.
I maybe way off but it seems that you are trying to prove to yourself that you don't need another set of wheels. Something I did for months, trying to find a way to make it work.
If that's the case, do the math of an extra $1000 for new wheels, vs. thousands of dollars for damages done other wise during an incident and unrepairable bodily damages. Hopefully you didn't take that the wrong way, just my way of thinking. Best of luck to you!
[email protected]
Member
Tire bead separation...
I might have been the one that posited putting a tire too wide for the rim could exacerbate a bead separation. And it can. But at what increased likelihood? Who knows, probably small. I have had a bead separation before, but that was on a racetrack (not in the t4r!)
As a secondary "incentive" to being safe (and maybe look better too), going to a wider wheel DRAMATICALLY improved the drivability of my 4r. All the "loosy" turn-in (especially under any speed over 15-20mph) is completely gone. Steering response is firm and natural.
Also;
- MPG did not go down
- I sold my old wheels for about what I paid for the new ones
- I had the car in for its 10K checkup last week and about 5 Toyota employees came over and remarked how good the car looked with the Black Rhino Zambia's on it (20 x 9) (that was not a factor for me, just saying)
- I think the tires that came with the truck must have really sucked (Geolanders), they squealed under light turn load and initial turn-in feel was alarming sometimes (like a lane change on the highway)
Most important, have fun...
I might have been the one that posited putting a tire too wide for the rim could exacerbate a bead separation. And it can. But at what increased likelihood? Who knows, probably small. I have had a bead separation before, but that was on a racetrack (not in the t4r!)
As a secondary "incentive" to being safe (and maybe look better too), going to a wider wheel DRAMATICALLY improved the drivability of my 4r. All the "loosy" turn-in (especially under any speed over 15-20mph) is completely gone. Steering response is firm and natural.
Also;
- MPG did not go down
- I sold my old wheels for about what I paid for the new ones
- I had the car in for its 10K checkup last week and about 5 Toyota employees came over and remarked how good the car looked with the Black Rhino Zambia's on it (20 x 9) (that was not a factor for me, just saying)
- I think the tires that came with the truck must have really sucked (Geolanders), they squealed under light turn load and initial turn-in feel was alarming sometimes (like a lane change on the highway)
Most important, have fun...
[email protected]
Member
And the tires I used...
Added to above: I went with Toyo Proxes ST II (or something like that) 275/55 tires. Tires are fine off-road, but are not a A/T for sure (I spend the majority of my time on road, mostly off-roading to go camping or bike (bicycle) riding somewhere).
Added to above: I went with Toyo Proxes ST II (or something like that) 275/55 tires. Tires are fine off-road, but are not a A/T for sure (I spend the majority of my time on road, mostly off-roading to go camping or bike (bicycle) riding somewhere).
DannyLlama
Elite Member
Bret, pics?!
[email protected]
Member
Pics of Zambias...
Here is a suitable small pic. Bigger pics at;
http://www.levycodev.com/t4r/IMG_0452.JPG
http://www.levycodev.com/t4r/IMG_0453.JPG
http://www.levycodev.com/t4r/IMG_0454.JPG
http://www.levycodev.com/t4r/IMG_0455.JPG
http://www.levycodev.com/t4r/IMG_0456.JPG
http://www.levycodev.com/t4r/IMG_0457.JPG
http://www.levycodev.com/t4r/IMG_0458.JPG
Here is a suitable small pic. Bigger pics at;
http://www.levycodev.com/t4r/IMG_0452.JPG
http://www.levycodev.com/t4r/IMG_0453.JPG
http://www.levycodev.com/t4r/IMG_0454.JPG
http://www.levycodev.com/t4r/IMG_0455.JPG
http://www.levycodev.com/t4r/IMG_0456.JPG
http://www.levycodev.com/t4r/IMG_0457.JPG
http://www.levycodev.com/t4r/IMG_0458.JPG
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Skeletor03
New member
Has anyone ran Pirelli Scorpion ATR tires? I am either getting a set of 20 x 9 XD Addicts or XD Misfits. I would like to get a set of tires that do not look to aggressive but will do well in snow and on the beach. Doubt my truck ever sees a trail since I have my 75 FJ.
I had them on my range rover, 19". They were awesome, a great all around tire in the snow and on the beach with almost no road noise and id ABSOLUTLY recommend them if that's what your looking at.
Last edited:
Socalrugger
New member
I looked at these and the Nitto Terra Grapplers....went with Nitto but couldve gone either way....
Mileage
Now that it has been a while how many miles did you get out of your TG's? Would you recommend them after driving on them?
Now that it has been a while how many miles did you get out of your TG's? Would you recommend them after driving on them?
TOYSTRY
New member
Would you take a pic from the back and front "dead center" of your T4R? Maybe from about 10ft away? Want to see how much wider the tires look from center front/rear?
Bay33saw
New member
Must admit they look good, are they OK for the thin rim on the LE 20's?
TOYSTRY
New member
If anyone is in the market for similar OEM look, I found this in my hunt for the perfect wheel. MB Motoring : Vortex
I'm not sure I will be getting them, but I thought I would share the info.
Pic:
Thanks brother. Just purchased these today:
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