10-14-2019, 03:36 PM
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#1
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Interesting - KO2 Tire Pressure per BFG site
Sorry if this was already posted. I've been reading the tire pressure threads, well a lot of them, and I decided to go to the BF Goodrich site and was surprised by the disclaimer right on the page for my stock tire size. It says clearly that I need to raise my inflation pressure to 44psi. I have been running 32psi. Don't remember ever seeing this before when I bought my tires many miles ago. Check it out.
All-Terrain T/A(R) KO2 | BFGoodrich Tires
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2012 Trail Edition |KDSS |BLACK| 265/70R17 C KO2's @ 44psi | 250,000+ miles |>Link To Inside Fishing Rod Holder Mod
2017 LAND CRUISER URJ200 | MGM | 285/60R18 | 62,000 miles
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10-14-2019, 04:10 PM
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#2
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I have been running mine at 38psi. 40psi was a little harsh. I can't imagine 44psi.
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10-14-2019, 04:57 PM
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#3
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Sorry, where did you find that tire pressure spec? Following your link, I see general information and when opening specs on the C and E versions of the 265/70-17, the tire pressure at the max. load.
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10-14-2019, 06:02 PM
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#4
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This is it
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10-14-2019, 06:46 PM
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#5
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Quote:
Originally Posted by headpaneer
Sorry, where did you find that tire pressure spec? Following your link, I see general information and when opening specs on the C and E versions of the 265/70-17, the tire pressure at the max. load.
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Sorry, I guess the link removes my specific vehicle info because of cookies, I guess. Like SoCalRunner posts above, after I enter the year, make, model, it gives what is pictured above.
I'm going to go up to 42 and see what happens.
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2012 Trail Edition |KDSS |BLACK| 265/70R17 C KO2's @ 44psi | 250,000+ miles |>Link To Inside Fishing Rod Holder Mod
2017 LAND CRUISER URJ200 | MGM | 285/60R18 | 62,000 miles
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10-14-2019, 06:47 PM
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#6
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that's to match the factory load rating which takes into account more than the load of the tires but also fuel efficiency, rollover performance, etc...
you can double check their math by looking at the load rating of the factory tires (I can't remember what it was) and looking at a load-inflation table for the KO2s
i remember when i used a generic load-inflation table for the load rating my math came out to about 40psi, so 44psi from the manufacturer's own table sounds believable
anytime you change load rating on your tires your new tires will be at a different pressure than what is on the door, the rating on the door is only for OEM equivalent tires.
(i ran my C range KO2s usually 37-39psi)
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10-14-2019, 07:18 PM
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#7
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It is because it is an LT tire. Look up the load inflation for LT.
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10-14-2019, 07:21 PM
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#8
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Quote:
Originally Posted by SoCalRunner
This is it
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Thanks!
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'16 Magnetic Grey SR5 Premium - FN 6-Shooters, 265 KO2s, TRD CAI, various other do-dads
So happy to be back in a 4Runner again! Previous Toys - '87, '89 and '93 4x2 Pick Ups, '03 4Runner, '08 Sequoia
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10-15-2019, 12:14 AM
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#9
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Quote:
Originally Posted by Gclark949
It is because it is an LT tire. Look up the load inflation for LT.
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this is the right answer. LT are higher PSI than normal rating
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10-15-2019, 08:51 AM
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#10
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even if you change to another P-tire with a different load rating your pressure required is going to change
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10-15-2019, 09:58 AM
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#11
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Quote:
Originally Posted by jhguth
even if you change to another P-tire with a different load rating your pressure required is going to change
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Thanks. I've had the KO2's on for about 20k now and was getting some good noise and hi lo wear on the inside of the fronts. I have been running 32-34. I took them up to 40 last night and what a difference on my commute today! So much quieter and the tires are much cooler to the touch. Ride is stiffer but that doesn't bother me at all. No more feeling like I'm riding on suction cups! wish I had known to put them up when I got them, don't think that was posted on the web site at that time.
Wonder how many consumers aren't aware of this!? There are so many differing pressures and opinions on this site, but to see it from the manufacturer really made up my mind.
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2012 Trail Edition |KDSS |BLACK| 265/70R17 C KO2's @ 44psi | 250,000+ miles |>Link To Inside Fishing Rod Holder Mod
2017 LAND CRUISER URJ200 | MGM | 285/60R18 | 62,000 miles
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10-15-2019, 11:11 AM
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#12
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I run mine at 35 most of the time, or 32 if I'm driving on a lot of dirt roads.
I remember seeing a chart someone posted where the minimum you should run on the highway with E rated is about 32 psi. Any lower and they get too hot.
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10-16-2019, 01:51 PM
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#13
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Ok, I double checked the math. My original P dunlops were rated at 2425lbs at 32psi, then derated to 2204lbs being on the light truck (4runner). Cross that over to the TAKO2's LT chart, and 44psi makes sense, 45psi would be 2255lbs.
At 40psi now, going to give 44 a try for the hell of it. I realize everyone has done this already and this horse has been beat to death over the past 10 years, but I guess I'll see for myself and add to the validations!
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2012 Trail Edition |KDSS |BLACK| 265/70R17 C KO2's @ 44psi | 250,000+ miles |>Link To Inside Fishing Rod Holder Mod
2017 LAND CRUISER URJ200 | MGM | 285/60R18 | 62,000 miles
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But like a bomb.
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10-16-2019, 02:19 PM
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#14
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Quote:
Originally Posted by Jivewalker
Ok, I double checked the math. My original P dunlops were rated at 2425lbs at 32psi, then derated to 2204lbs being on the light truck (4runner). Cross that over to the TAKO2's LT chart, and 44psi makes sense, 45psi would be 2255lbs.
At 40psi now, going to give 44 a try for the hell of it. I realize everyone has done this already and this horse has been beat to death over the past 10 years, but I guess I'll see for myself and add to the validations!
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Ive tried 46 and 44...no good. 46 crowns and follows the ruts in the road all over the place..light and squirrely on highway.
I am currently using 40-40 for last two years. Seems about the best. Wear seems even. 40-38 also ok.
265/70/17 K02 C
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10-16-2019, 03:28 PM
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#15
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Im similar at 40 on 275/70/17 E. Tried 42, tried 44, ride gets very stiff for me up there. 40 seems to be the sweet spot.
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