What tire pressure to run? KO2

Ive got a set of KO2 that says max cold psi of 50psi. Its cooled off in nor cal. Just curious as to what pressure you think tires should be at? I have mine to 42psi currently. Thanks

 

use this tool to get you about right on PSI when moving to a different size tire or a tire with a different load rating. Just plug in the original tire size and air pressure (located on the sticker in your driver door sill) and then enter the new tire size and load rating and you will get the correct PSI. This tool works great and gets you right in the ballpark, then adjust up or down a pound or two based on how you load and drive the truck.

 

Thanks

 

iv been running my k02 at 35 psi (285/70R17 E rated). It keeps my tire light off and rides well

 

~37 for me

 

Same!

 

https://www.tundras.com/threads/bfg-at-t-a-ko2-what-pressure-do-you-guys-recommend.6182/

This thread is a good place to start.

 

Huge thank you! This tool is actually right on the money, I can't believe I didn't find it yesterday when I spent a few hours researching this question for my own needs.

For those that are interested in the math behind this tool, here's the best resource I found on this topic: https://www.toyotires.com/media/2125/application_of_load_inflation_tables_20170203.pdf

specifically, using the "P-metric to LT-metric" in the above PDF I arrived at the following numbers for my LT265/75R16 E (confirmed with the pressure-calculator as well):

Front: 35
Rear: 38

Here's how:

My OEM setup came with P265/70R16 111S load range tires rated as follows:

PSI.............26...29...32...35
P265/70R16 111 2105 2216 2326 2403

so these tires have a load carrying capacity of:

2105 lbs @ 26 PSI
2216 lbs @ 29 PSI

( those are my doorjamb inflation numbers )

Note that this tire has been de-rated by the vehicle manufacturer by a factor of 1.10 to account for its installation on a light truck, so the actual load numbers are:

Front: 2105/1.1 = 1913.6363636364
Rear: 2216/1.1 = 2,014.5454545455

The new E load tires I got are KO2 LT265/75R16 E 123/120R:

PSI.................35...40...45...50
LT265/75R16 Single 1910 2100 2280 2470

matching up the OEM adjusted load numbers to their load numbers we can see that the fronts should run at about 35 PSI (~1910 lbs)

the rears, we need to do some math first:

2100/40=52.5 lbs per PSI
2,014.54/52.5=38.3721904762

Hope this helps!

PS: after spending a few hours on this topic I was shocked at the level of misinformation floating around the forums (not here but other forums) and the lack of any info on this topic from BFG.