Psi for 265/75/16

Hey guys I just recently purchased some bfgoodrich all terrain TA KO 2 and I have read a few things saying to put what my door jam says. When I got them put on the tire place said they put 53 psi in it. My original tires were 265/70/16 Could you all tell me what it should be at?

 

Based on tire pressure curves 38 psi front and 40 psi rear gives the same load as stock tires at stock pressure.

 

sorry I'm new to all of this, so being at 53 psi is it bad on the tires?

 

I have the same tires, they're E rated (I believe KO2s only come in E rated for that size), I keep them at 35 psi on the street. Sidewall says they can handle up to 80psi but only a madman would attempt anything close to that. I find that at 40psi or higher the ride is super rough and almost feels dangerous on the freeway (little bumps cause the backend to feel unstable). 30-35 feels perfect, I'm also in a 1st gen 2004 which is considerably lighter than the 2nd gens so 40 might be good for you. 53 seems high to me.

You can also do the chalk test to determine what the perfect PSI should be for your application, if you search 'chalk test' up top there are tons of threads on it.

 

I'm at 37 on 285/75/16 and it's stiff. Lower your PSI, I'm going to. Old tires were at 32.

 

53 psi will probably mean they are over inflated which does two undesirable things:

• The tires will wear faster at the center reducing the tread life
• The ride will be too bouncy which can result in poor handling

There really isn't a perfect pressure but usually a reasonable range of pressures. I think 53 is probably too high for those tires. The numbers I gave are a good starting point to match the same handling as Toyota planned for the stock tires.

Another good test people often do is the "chalk test" in which you rub a band of chalk across the tread and then drive a few hundred feet. If the chalk wears off the same across the tire you are at a good pressure. Worn in the center but not the edges too high, the opposite too low.

 

Okay awesome guys thanks for the advice I will lower the psi and try the chalk test.

 

On my old T-100 with that size tire, I ran 35 in front and 32 in back. If I had to haul anything, I'd air the back up a little. I have Michelins and they are wearing even. I'm running the same pressures in my Taco now but only have 265/70-16s.

 

My co worker just put the same exact tires on his F-250 powerstroke and they all take around 55 psi. Maybe they went full retard and thought hmmm diesel truck get lot of psi cuz E rated so this one should too derrr.

Try giving 33-35 psi a shot

 

53psi is way too much imo. It's going to wreck your tires. I'm running kings,TC uppers,with duratracs 265/70/17 C load. 35psi feels very washy and wants to wonder at 60mph+. 40psi every road seam knocks my fillings out and tracks dead str8. 37-38psi is were my truck like to ride. Never own a truck that is so frickin sensative. Now! If someone can tell me the secret on how to keep the alignment right while having alignment cams. I will buy you a nice,cold,beer.

 

I'm running Duratrac 265/75r16 Load E's and am at 38psi all around. Tire shop put them at 32 when they were installed. Like stated above, it felt washy and sloppy. 38 feels good.

 

We don't have enough information to give you a good answer yet. It sounds like your original tires were the factory rubber, which would have been P-Metric 265/70/R16.

If your NEW tires are P-Metric 265/75/16 then you should run the same PSI as the old ones (which should have been set to the door jamb sticker amounts of 29PSI front and 32PSI rear). This will ensure even tread wear and provide a buffer against TOO MUCH pressure when driving on hot days. This will give you a ride quality that is comparable to running the OEM rubber.

If your NEW tires are LT (Light Truck), then it's certainly possible that they are RATED for 53 psi, but given how comparably light these trucks are, you'll just wear down the center tread while driving around with a really bouncy ride. The only time you should run your tires at the tire-sidewall-PSI is when you need the maximum carrying load capacity of the tires. I can tell you that most average joes who drive daily to/from work are nowhere near needing as much load capacity as is offered by a LT tire.

On this link, scroll down to the LT chart:

https://www.tirerack.com/tires/tiretech/techpage.jsp?techid=55

I sure hope you didn't end up with Load Range E tires as those are straight up overkill, so you probably have load range C or D based on what the tire shop told you. But keep in mind that the PSI numbers on that chart are for MAXIMUM LOAD.

 

Nearly all the KO2 are load E. The specific size the OP has is only available in load E. Not really overkill, just a sturdy tire meant to survive off-road aired down.

 

Set them at 35 and be done with it. Don't overthink it....

 

Same tires for me but 265/65. 2015 DCSB

I'm running 38psi all the way around and they are wearing evenly. Ride is what I expect from the tire

 

That's because his F-250 weights a whole lot more than your Tacoma.

 

36psi front; 34psi rear. Best tire wear. These are cold psi. I wouldn't go any higher. I got the same tires; got over 28,000 something miles on them and they look brand new. I check my tire wear often and rotate when needed.

I brush on white paint on the threads every so often and found these settings the best after checking for wear indicators; I don't trust the chalk, you turn and it's gone. You got to factor in tire pressure rises as the tire gets hot. I saw mainly a 2psi increase after driving around for over an hour. so when HOT, I'm at 38psi front and 36psi rear.

 

Suggest checking tire pressure early am if not garaged, before sun gets on the tires, sun alone can increase pressure 4-5 pounds or more. Also, an old rule of thumb was a 10 degree change in ambient temperature gives a tire pressure change of 1 pound.

 

this entirely depends on what you like. I didn't like my truck at stock tire pressure. I carry a bit of a load all the time in back(400 lbs) so I run 34psi front and 36 psi rear. The ride feels nice and agile to me there, firm and responsive. I'll have to chalk my tires to get any more of an idea of what I should be doing to get any better than where I'm at.
Pete

 

My point eactly!