BFG KO2 Tire Pressure

[613RAMSPORT]

I'm putting some new BFG KO2 - 285/65R20 on my truck next week, and im curious what everyone runs their KO2's at? I've read anywhere from 40-80psi.

I should add that i'm mostly wondering for on road/highway use.


thanks

 

[6.7CumminsDrvr]

Ran them right at 40 psi on my 1500

I looked up a Load Inflation Table to determine what pressure was needed.


Stock Goodyear’s are only rated for 2,365 lbs max. When a P-metric tire is installed on a light truck ( SUV, pickup, or minivan) the load capacity of the tire is reduced by a factor of 1.10 as prescribed by the Federal Motor Vehicle Safety Standards.

Stock Goodyear is 2601 lbs @ 44 psi so 2601/1.10 = 2,365.

Now having this info I looked up the 285/65/20 in the load Inflation Table and found that the 285/65/20 @ 40 psi is rated for 2390 which is sufficient as it slightly exceeds the stock tire maximum capacity.


If you really want split hairs, the 285/65/20 is rated for 2,369 lbs @ 39.5 psi.


Here is a link to a Load Inflation Table. I have a printed copy, good to have handy: https://toyo-arhxo0vh6d1oh9i0c.stac...ication_of_load_inflation_tables_20170203.pdf

 

[69GWC]

Really what evet it takes to get a good wear pattern on them, do the chalk test and see what works best for you and your truck

Then just adjust for added weight.

 

[613RAMSPORT]

Ran them right at 40 psi on my 1500

I looked up a Load Inflation Table to determine what pressure was needed.


Stock Goodyear’s are only rated for 2,365 lbs max. When a P-metric tire is installed on a light truck ( SUV, pickup, or minivan) the load capacity of the tire is reduced by a factor of 1.10 as prescribed by the Federal Motor Vehicle Safety Standards.

Stock Goodyear is 2601 lbs @ 44 psi so 2601/1.10 = 2,365.

Now having this info I looked up the 285/65/20 in the load Inflation Table and found that the 285/65/20 @ 40 psi is rated for 2390 which is sufficient as it slightly exceeds the stock tire maximum capacity.


If you really want split hairs, the 285/65/20 is rated for 2,369 lbs @ 39.5 psi.


Here is a link to a Load Inflation Table. I have a printed copy, good to have handy: https://toyo-arhxo0vh6d1oh9i0c.stac...ication_of_load_inflation_tables_20170203.pdf

Okay so my next question, on the table the far right of the table, under 80psi it shows 3860lbs E rated 127

I know the ko2's I have are E load range. I guess that's where my confusion really is

 

[6.7CumminsDrvr]

Not all E range are equal which I didn’t fully get either until I read thru the load Inflation Table. The letter range (C, D, or E for example) indicate the sidewall ply with E being a 10-ply..........but the load index (the 3 digit number) really tells the tires capacity. Then sprinkle in different air pressure ratings.......there is a lot to really know and understand. My 35’s are E rated 3195 @ 65 psi, the 285/65/20 BFG’s are E rated 3860 @ 80 psi so an E range tire ain’t nessisarly the same as another. I haven’t even touched on speed rating yet!

A mod should really sticky the Load Inflation Table, it is a great resource!

 

[jled]

I just picked up new 1500 on rockstars with BFG KO2 35x12.50x20 and registered w bfg and contacted them about psi/ their response was 44