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  #37  
Old 02-22-2016, 11:02 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

LT tires always run higher pressures due to sidewall flex and load carrying. Stick with pass tires and pressures if you want a great ride....
Normal LT pressures on pickup LT tires are 55-60 psi...and for good reason....


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  #38  
Old 06-02-2016, 05:42 PM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

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Originally Posted by WK2 Rover View Post
BFG didn't want to discuss the math and referred me to the load tables again. Fortunately someone provided a link to them above!

Based on the tables the proper inflation would be 50 PSI. I will try 45 to 50 PSI range until it feels right.


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I just picked up a set of the BFG TA KO2 LT265/60R18s after my original tires were done. Discount Tire inflated them to 39psi. I've since bumped them up to 41psi, and will slowly raise the pressure until I find the right spot, or may adjust depending on if I'm towing or off-roading.

Not sure how you are getting 50psi for these. Based on the load table provided earlier in the thread (https://www.toyotires.com/tires-101/...flation-tables), after derating the OEM P-metric, I get 45psi to maintain the same loading (2011 lb), same as the OP of the loading table. I do get 50psi if you don't derate the P-metric (2212 lb before derating).

Note that the front axle gross weight rating is 3200 lb and the rear is 3700 lb. When setting up my trailer, I was very close to the max rear axle rating (slightly heavier when I first load balanced it, but now when the trailer is balanced I'm just over 3600 lb on the rear axle). At 3700 lb on the rear axle or 1850 lb/tire (assuming evenly loaded L/R), you need to be 40+psi (40psi=1865lb/tire, 45psi=2025lb/tire).

I found somewhere online (sorry, don't have the original source) that my diesel 4x4 has a curb weight of 5725 lb, and 54/46 F/R loading ratio empty, or 3092 F/2634 R. So if you are just running around with driver/passenger/minimal load, you could in theory run at a lower pressure.

FYI, more discussion and thermal images of under-inflated LT tires here: https://www.nittotire.com/media/1529...TSD-12-011.pdf
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  #39  
Old 06-04-2016, 06:44 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

I run my LT Bridgies on about 37 psi, 50 I would need a kidney belt....


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  #40  
Old 06-04-2016, 10:47 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

the chalk method is the better way, no guessing - it 'is what it is' when you get a good wear pattern

i moved from p to LT on my f150, initially was all the way up around 55 but was brutal - settled into 42 cold, about 47-48 when warmed up, much better.

LT are going to be harsh, it's the trade for less side wall flex (towing/sway control) and a better chance of not losing a sidewall offroad. Plus the mesquite thorns out here are like billions of nails out there in the desert just waiting to ruin your day. LT stand up to them better than P.

do the TPMS on these jeeps allow an easy swap of rims/tires? I had considered keeping a set with P and another with LT. I take some long road trips (3-4k miles) about twice a year ... the rest of the time is poking around the desert looking for ghost towns and old mines, so ideally I could swap on some P rated for the long road trips
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  #41  
Old 06-04-2016, 11:25 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

Yeah I was swapping between P 20"s and LT 18"s... the TPMS picks up the change in a few kays / miles. I don't often bother with the stuffing around now though, however I also don't under inflate the LTs to create a soft ride. They is what they is...

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  #42  
Old 06-04-2016, 11:29 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

I'm running my 20" K02's at 49psi all around based on Tire Racks recommendation.
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  #43  
Old 06-06-2016, 10:55 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

does anyone have good pics of the Jeep with the K02s? the previous links don't work. I bought these for the wife's ford and they look awesome. I'm thinking of getting rid of the highway specials that came with the off road 2 package with only 20k miles.
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  #44  
Old 06-06-2016, 11:10 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

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Originally Posted by Timo13 View Post
does anyone have good pics of the Jeep with the K02s? the previous links don't work. I bought these for the wife's ford and they look awesome. I'm thinking of getting rid of the highway specials that came with the off road 2 package with only 20k miles.


Here ya go. Mine are 20's however.
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  #45  
Old 06-06-2016, 11:19 AM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

Quote:
Originally Posted by Timo13 View Post
does anyone have good pics of the Jeep with the K02s? the previous links don't work. I bought these for the wife's ford and they look awesome. I'm thinking of getting rid of the highway specials that came with the off road 2 package with only 20k miles.






The one on the roof was just to get it home, I now have a full size spare and it fits! 265/65r18 is the max that will fit back there, but you have to lose all the bins and jack...

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  #46  
Old 06-06-2016, 03:55 PM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

nice - can you store the spare flipped upside down so you can then put stuff in the wheel?

i know on the wj's we could, but you had to cut/grind out the jack holder (thin metal tabs in the middle of the spare well)
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  #47  
Old 06-06-2016, 08:36 PM
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50psi?? New LT265/60R18 BFG TA KO2

Quote:
Originally Posted by Cowpig View Post
nice - can you store the spare flipped upside down so you can then put stuff in the wheel?

i know on the wj's we could, but you had to cut/grind out the jack holder (thin metal tabs in the middle of the spare well)


It doesn't fit upside down... I tried, didn't check to see if I could grind something off though. The steel "donut" spare is actually a bigger wheel- the jack doesn't even fit inside this one like it did on that donut, but my wife figured out you could squeeze it in under the back seats.

And to keep on topic- mine are at 39psi and the chalk test seemed fairly even. Ride is stiffer but that's not necessarily bad since it was super soft before...
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  #48  
Old 06-06-2016, 10:19 PM
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Re: 50psi?? New LT265/60R18 BFG TA KO2

I'll gladly throw up a few pics of mine if it helps any. I'm one size up from the OP - LT275/65R18, running @ 41psi front and 39psi rear. My spare is a LT255/70R18 on the stock steel wheel, and I keep that inflated to a healthy 50psi.
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