BF Goodrich KO2

[FirstToy]

max rating 3197lbs @ 80psi PER TIRE
3197 x 4 = 12,788 lbs per vehicle is the max rating of the tires.
That is used to make sure your tires (max tire weight x 4 tires) surpass the GVW of the truck.

last I checked, the GX is around 5000lbs w/ a GVW of another 1500lbs or so?
that puts you around 1300-1400lbs per tire, which is about 35psi

Okay all you wise crackers...
Maximum PSI for LT285/75R17 BFG KO2 M/T is 80 psi. Note this is an LT rated tire.
Go to this link and scroll down to LT285/75R17 BFG KO2 M/T: BFGoodrich Mud-Terrain T/A KM2 Tire Pressure Chart - TirePsi.com
Yea, I had to do a double take when I first purchased these tires when looking up proper tire pressure.
At 60 psi, and 40,000 miles, with about half life tread, the tires are wearing very even and on the highway I'm getting about 15 mph as my rig sits now, roof top tent and all.
That's why I'm only running 60 psi.

 

[Mountaintrails]

So I am talking KO2.. I have also ran KMs though. If you run KMs have them siped.
Why in the world are you guys running that kind of tire pressure., In the summer without towing or hauling I run about 32. When towing my rv or heavy trailer I will go to 40. In the winter I run 25 to 28 depending on conditions. If I am in deep snow I will air down to 8 if needed. These are not KOs but my next set will be again

 

[FirstToy]

@r2m , from the same site you linked- the correct chart for inflation
the weight is per tire. 35psi is probably the max you should be using without towing

LT-Metric Tire Load and Inflation Table - TirePressure.com

Tire load and inflation table for LT-Metric tire sizes with corresponding tire inflation pressures and load carrying capacities.

tirepsi.com

@Mountaintrails , based on the curb weight and gvw, I believe your recommendation running KO2's at around 25- 32psi is the sweet spot.

So I am talking KO2.. I have also ran KMs though. If you run KMs have them siped.
Why in the world are you guys running that kind of tire pressure., In the summer without towing or hauling I run about 32. When towing my rv or heavy trailer I will go to 40. In the winter I run 25 to 28 depending on conditions. If I am in deep snow I will air down to 8 if needed. These are not KOs but my next set will be again

Okay all you wise crackers...
Maximum PSI for LT285/75R17 BFG KO2 M/T is 80 psi. Note this is an LT rated tire.
Go to this link and scroll down to LT285/75R17 BFG KO2 M/T: BFGoodrich Mud-Terrain T/A KM2 Tire Pressure Chart - TirePsi.com
Yea, I had to do a double take when I first purchased these tires when looking up proper tire pressure.
At 60 psi, and 40,000 miles, with about half life tread, the tires are wearing very even and on the highway I'm getting about 15 mph as my rig sits now, roof top tent and all.
That's why I'm only running 60 psi.

 

[Mr Chuck Norris]

@r2m , from the same site you linked- the correct chart for inflation
the weight is per tire. 35psi is probably the max you should be using without towing

LT-Metric Tire Load and Inflation Table - TirePressure.com

Tire load and inflation table for LT-Metric tire sizes with corresponding tire inflation pressures and load carrying capacities.

tirepsi.com

@Mountaintrails , based on the curb weight and gvw, I believe your recommendation running KO2's at around 25- 32psi is the sweet spot.

There's a kicker here...

LT Metric tires are not rated to be ran with anything LESS than 35psi.

The US Tire And Rim Association creates a full Load And Inflation Guide (which costs money to purchase) but Toyo has always hosted it for free on their site. Follow the instructions to convert from P-Metric to LT-Metric PSI, and note that the guide advises to never run less than 35psi in a LT-Metric tire on the road.

https://www.toyotires.com/media/3729/application_of_load_inflation_tables_20200723.pdf

 

[Mountaintrails]

IMO tire pressure is a thing that needs adjusted per condition and need. Are you going to want to do 70 on the freeway for 2 hours at 25 psi. NO you could damage your tires. But can you do 35 mph for 40 min on icy snowey roads with 25 psi. Absolutely. I have seen people stuck, I have lowered their pressure and they have walked out of the situation on their own.
I grew up in ranch/farm environment and learned young about tire pressure. As a jeeper/offroader since I was 14 (now in my 50s) tire pressure has been key.
Remember your tpms will probably flash at you with less than 35, mine did. I disabled mine.
There are lots of reasons to air down, snow, ice, sand, rocks etc.

 

[Tex68w]

IMO tire pressure is a thing that needs adjusted per condition and need. Are you going to want to do 70 on the freeway for 2 hours at 25 psi. NO you could damage your tires. But can you do 35 mph for 40 min on icy snowey roads with 25 psi. Absolutely. I have seen people stuck, I have lowered their pressure and they have walked out of the situation on their own.
I grew up in ranch/farm environment and learned young about tire pressure. As a jeeper/offroader since I was 14 (now in my 50s) tire pressure has been key.
Remember your tpms will probably flash at you with less than 35, mine did. I disabled mine.
There are lots of reasons to air down, snow, ice, sand, rocks etc.

How did you disable it and does it show on the dash after doing so?

 

[r2m]

There's a kicker here...

LT Metric tires are not rated to be ran with anything LESS than 35psi.

The US Tire And Rim Association creates a full Load And Inflation Guide (which costs money to purchase) but Toyo has always hosted it for free on their site. Follow the instructions to convert from P-Metric to LT-Metric PSI, and note that the guide advises to never run less than 35psi in a LT-Metric tire on the road.

https://www.toyotires.com/media/3729/application_of_load_inflation_tables_20200723.pdf

Thanks for the link! I down loaded the PDF and looked it over. One thing it mentioned was that one should not go below 20 psi on LT rated tires on account that the heat will ruin the sidewall. The only time I'm less than 20 psi is when I'm on a trail and usually only going about 15-20 mph and often with a lot of stops, e.g. looking around, maybe a little hike, lunch, potty, etc.. Not really a chance of over heating in those conditions.

 

[radman]

Driving in snow/ice for the first time (averaging 60mph) and noticed a burning rubber smell.
This is the rear driver tire. It was at 35psi cold. Any ideas what could cause this?

All others are sharpe edges and good.

 

[Bralow]

Driving in snow/ice for the first time (averaging 60mph) and noticed a burning rubber smell.
This is the rear driver tire. It was at 35psi cold. Any ideas what could cause this?

All others are sharpe edges and good.

Sticking caliper causing the tire to drag a little?

 

[Donny Voodoo]

Sticking caliper causing the tire to drag a little?

yeah, feel the heat coming off the wheels, if that one is much warmer, that’s your answer.