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 > BFG All Terrains KO2 PSI

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d3500ram

Colorado

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Joined: 07/31/2006

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Posted: 07/11/18 03:34pm Link  |  Quote  |  Print  |  Notify Moderator

mellow wrote:

My Nitto Terra Grappler's are 3500 lbs at 65psi. All my other E rated tires were 80 psi. I love the lower PSI as it is faster to air up at the pump.


What tire size and LI are you running? My NTG's are LT285/70R17 E 126R, 3750# at 80 psi.

on edit:
Assuming a 16" wheel on a 2000 truck then you might have the following:
LT305/70R16 E 124Q 3525 @65 PSI.


2005 Dodge 3500 SRW, Qcab long bed, NV-6500, diesel, 4WD, Helwig, 9000XL,
Nitto 285/70/17 Terra Grapplers, Honda eu3000Is, custom overload spring perch spacers.
2008 NorthStar Arrow short bed.

kohldad

Goose Creek, SC

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Posted: 07/11/18 08:24pm Link  |  Quote  |  Print  |  Notify Moderator

Weigh your truck and then consult the tire manufacturer's tire inflation table to find the minimum pressure you can run to carry the weight on the road. While your tire manufacturer is the best source, looking up the tire size by size and load range, any tire inflation chart will get you very close. The chart I use most often is the Toyo because it's easiest to find. Scroll down to page 27 and your tire should be the top row: Toyo Inflation Chart. Notice that 65 psi is the maximum for an E tire in your size, an F tire max would be 80 psi.

All this said, the maximum you can run is the max pressure on the side wall. Running a tire with higher psi than what you need according to the tire inflation chart will only result in a harsher ride and accelrated tire wear in the center of the tire. Running lower psi than required can lead to a catostrophic failure. So it's always better to err on the side of more psi than you think you need.

Another advantage and why I always run 20psi over required, is the higher pressure reduces sidewall flex which isn't a good feeling with a camper on board. I only need 55psi for my tires when I have the camper, but run 70 or 80(max) to reduce camper sway.


2015 Ram 3500 4x4 Crew Cab SRW 6.4 Hemi LB 3.73 (12.5 hand calc avg mpg after 25,000 miles with camper)
2004 Lance 815 (prev: 2004 FW 35'; 1994 TT 30'; Tents)


monkey44

Cape Cod, MA and Central Fla

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Posted: 07/11/18 09:45pm Link  |  Quote  |  Print  |  Notify Moderator

BFG LT285/70/R17 E 126R, 3750# at 80 psi.

That's the reading on the tire --- obviously not, stock, however, GM / Chevy replaced the OEM General 265 tires when those tires fails, and got quite squirrely after riding around a few months ... so, at my request, it replaced those (an allowance) and upgraded to the BFG KO 285's at my request ... I had to pay a difference of $720 balanced and installed...

I generally run them at 65 front, 75 rear, altho it says up to 80 psi when loaded. Nice ride for AT's, and so far, getting fairly good mileage -- less than 50 percent worn at 26K miles, all hauling, and a lot of mountain driving. So, I'll be happy with 50-60K miles


Monkey44
Cape Cod Ma & JAX Fla
GMC 2500 4x4 Sierra X-Cab
Chevy 2500HD 4x4 DC-SB
2008 Lance 845
2002 Angler 8B
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r47smiley

Morgan Hill, CA

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Posted: 07/12/18 07:14am Link  |  Quote  |  Print  |  Notify Moderator

Next go around I'm definitely getting some F rated tires.

Thanks All!

Rob

Kavoom

Kansas

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Posted: 07/12/18 08:41am Link  |  Quote  |  Print  |  Notify Moderator

I'm on my second pair. I was told by the Costco guys that each vehicle (and tire size) has ratings that impact the recommended tire pressure for driving. My first set was a custom ordered set (not picked up) at a big discount that were narrower than my present ones (recommended size). I strongly suggest watching the alignment very closely if you want any distance out of them along with five K rotation.

I do quite a bit of varying quality national forest roads and I got like 42K out of my first ones and they were toast. The dealership failed to tighten something at the first alignment with the second set I have now and I went 4K before realizing it and lost 5/32's off of one before I fixed it. Not sure what to do about that. Going to the dealer for alignments is no longer going to happen.

OH, but in terms of performance, they are awesome, particularly in the winter. And they will let you know on a wet road or slushy snow when it is time to get new ones. I promise.

mellow

Salisbury, MD

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Posted: 07/12/18 01:20pm Link  |  Quote  |  Print  |  Notify Moderator

d3500ram wrote:


on edit:
Assuming a 16" wheel on a 2000 truck then you might have the following:
LT305/70R16 E 124Q 3525 @65 PSI.


Correct.


2000 Ford F-250 5.4L 4x4 Gasser
2008 Lance 1191 - 220w of solar - Bring on the sun!

SidecarFlip

SE Michigan

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Posted: 07/12/18 01:59pm Link  |  Quote  |  Print  |  Notify Moderator

Irregardless of pressure, my last set were KO2's and I was not happy with tire life. I got about 30K on them and the tread started chunking.

I have Michelin's now.


2015 Backpack SS1500
1997 Ford 7.3 OBS 4x4 CC LB

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