Jump to content

BFG k02 tires

MY164X4

By MY164X4
in Troubleshooting & Recalls

Recommended Posts

swathdiver Senior Enthusiast

swathdiver

Posted
Posted
On 11/19/2018 at 4:07 PM, MY164X4 said:

 

Can somebody explain why ko2 is so slippery in the rain with very little throttle straight line or cornering... stop and go.

 

Tires came with the truck plenty of tread left.

 

16 SLT, 4wd.

 

Worse tire in the WORLD...

 

I've driven through 2 inches of standing water at 80 mph with my KO2s and the truck didn't budge an inch.  First problem I see is that your're not running enough air in them and at that pressure barely makes your axle rating.  50 PSI minimum and if they are Ds or Es you can take them higher in the rear when towing or hauling a lot of weight in the bed.  You'll wear them out right quick at that low pressure, don't ask me how I know.

 

GM has different alignment specs for different tires.  They do not have specs for KO2s for my truck but this tire did come OE on your K2s so I would look them up and take it to an alignment shop and see what's going on after airing them up to minimum spec.

 

We've been through all kinds of rain, torrential, can't see barely twenty yards in front and she didn't budge, none of the Stabilitrak or Traction Control features had any need to activate with those tires.  

  • Replies 43
  • Created
  • Last Reply
MY164X4 Enthusiast

MY164X4

Posted
  • Author
Posted
I've driven through 2 inches of standing water at 80 mph with my KO2s and the truck didn't budge an inch.  First problem I see is that your're not running enough air in them and at that pressure barely makes your axle rating.  50 PSI minimum and if they are Ds or Es you can take them higher in the rear when towing or hauling a lot of weight in the bed.  You'll wear them out right quick at that low pressure, don't ask me how I know.
 
GM has different alignment specs for different tires.  They do not have specs for KO2s for my truck but this tire did come OE on your K2s so I would look them up and take it to an alignment shop and see what's going on after airing them up to minimum spec.
 
We've been through all kinds of rain, torrential, can't see barely twenty yards in front and she didn't budge, none of the Stabilitrak or Traction Control features had any need to activate with those tires.  
Just looked at the tires Load range is D.

So I should inflate to 50 psi?

Current psi 39 all 4 corners.

Sent from my SM-N910V using Tapatalk

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
Just looked at the tires Load range is D.

So I should inflate to 50 psi?

Current psi 39 all 4 corners.

Sent from my SM-N910V using Tapatalk



You’re fine where you’re at, you’ve got high miles on them which I believe some didn’t realize it. I’ve had KO’s in over 15 SUV’s and trucks, great tires but something about getting 20K miles into them and they’ll loose a lot of wet on road grip. Needless to say, every 1 1/2 years I get new tires but the KO2’s have had a lot of balancing issues as well as vibration issues too and the two pairs I’ve had DID NOT IMPRESS me in the slightest. Best to really really research in addition to forums.
TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted

Btw, my Nitto Ridge Grapplers are rated at max 80 psi and I’m running them at 38-40 with excellent wear and comfortable ride.

7464933594dec87dd0df34dbb3abd09d.jpg

SS502 Senior Enthusiast

SS502

Posted
Posted
11 minutes ago, TXGREEK said:

 


You’re fine where you’re at, you’ve got high miles on them which I believe some didn’t realize it. I’ve had KO’s in over 15 SUV’s and trucks, great tires but something about getting 20K miles into them and they’ll loose a lot of wet on road grip. Needless to say, every 1 1/2 years I get new tires but the KO2’s have had a lot of balancing issues as well as vibration issues too and the two pairs I’ve had DID NOT IMPRESS me in the slightest. Best to really really research in addition to forums.

 

Yes, you Sir are exactly correct. If I had I’d have those Grapplers ? on mine. I have the K02 and have been running at 36 psi since installed. The door placard says 35 on stock tires and this is a colder time of the year so 34 is the lowest I’ve seen. I do run with nitrogen, so they stay pretty consistent. They look properly inflated, I have low miles so I can’t speak about wear. I do know they have very good wet weather traction. No vibration at any speed. I don’t tow much (but plan to) so I’m wondering if 36 is too low after reading this thread. I do not pretend to be a tire expert so I take all inputs under considerations. Thanks guys!

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
Yes, you Sir are exactly correct. If I had I’d have those Grapplers [emoji854] on mine. I have the K02 and have been running at 36 psi since installed. The door placard says 35 on stock tires and this is a colder time of the year so 34 is the lowest I’ve seen. I do run with nitrogen, so they stay pretty consistent. They look properly inflated, I have low miles so I can’t speak about wear. I do know they have very good wet weather traction. No vibration at any speed. I don’t tow much (but plan to) so I’m wondering if 36 is too low after reading this thread. I do not pretend to be a tire expert so I take all inputs under considerations. Thanks guys!

 

Max psi is for towing/hauling purposes. Ridge Grapplers are definitely awesome tires just as I’m sure KO2’s are to others but my tires at 80 psi are rated at 3415 per tire which faaaaar exceeds oem tires which you average your weight all together and go from there. 50 psi is still way overkill for a half ton when running e rated tires

swathdiver Senior Enthusiast

swathdiver

Posted
Posted
6 hours ago, MY164X4 said:

Just looked at the tires Load range is D.

So I should inflate to 50 psi?

Current psi 39 all 4 corners.

 

Yes! LT Tires are made differently than P-Metrics, the air is what supports the weight and LT tires need more air.  50 PSI minimum.  Those fellas running around in the 30s are likely not even at the gross capacity of their axles or barely so.

 

Through much research with my size, 265-70-17, at 30 psi (which is what my door sticker says for P-Metrics) the load capacity for each tire is just 1715 pounds.  41 psi just exceeds my gross rear axle weight rating (4200) but that is still not enough.  They wore out fast until I wised up and listened to the BFG rep who told me to run them at 50 psi in the first place.  Now, they are wearing down much better but had I listened in the beginning and not been stubborn, they would have gone 60k miles.  I'll be lucky to see 40k now.  The tread depth is checked at each rotation.  The amount of weight they'll support at a given air pressure is not linear.

 

The 2500 version of mine with LT says to run them 50 psi up front and 60 psi in the rear (to exceed its gross rear axle weight rating).  

 

Anyhow, the 8 psi over my max axle rating is needed to properly inflate the tire for proper wear and keep the tire temperatures down.    

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
 
Yes! LT Tires are made differently than P-Metrics, the air is what supports the weight and LT tires need more air.  50 PSI minimum.  Those fellas running around in the 30s are likely not even at the gross capacity of their axles or barely so.
 
Through much research with my size, 265-70-17, at 30 psi (which is what my door sticker says for P-Metrics) the load capacity for each tire is just 1715 pounds.  41 psi just exceeds my gross rear axle weight rating (4200) but that is still not enough.  They wore out fast until I wised up and listened to the BFG rep who told me to run them at 50 psi in the first place.  Now, they are wearing down much better but had I listened in the beginning and not been stubborn, they would have gone 60k miles.  I'll be lucky to see 40k now.  The tread depth is checked at each rotation.  The amount of weight they'll support at a given air pressure is not linear.
 
The 2500 version of mine with LT says to run them 50 psi up front and 60 psi in the rear (to exceed its gross rear axle weight rating).  
 
Anyhow, the 8 psi over my max axle rating is needed to properly inflate the tire for proper wear and keep the tire temperatures down.    


That’s ridiculous, I’ve owned lots of trucks and SUV’s and never had any BFG at 50psi or more unless I was towing in one of my 3/4 tons and even then would lower back down after I was done towing. I’ve got the Nitto Ridge Grapplers 295/60/20’s and run them all day long at 38 psi with excellent wear and much better comfort for daily driving. Best is for everyone to check their tire manufacturers psi specs.
swathdiver Senior Enthusiast

swathdiver

Posted
Posted
34 minutes ago, TXGREEK said:

That’s ridiculous, I’ve owned lots of trucks and SUV’s and never had any BFG at 50psi or more unless I was towing in one of my 3/4 tons and even then would lower back down after I was done towing. I’ve got the Nitto Ridge Grapplers 295/60/20’s and run them all day long at 38 psi with excellent wear and much better comfort for daily driving. Best is for everyone to check their tire manufacturers psi specs.

 

My comments were in the context of my tire size and the 275-55-20 that the OP is running.  Based on your size and at 38 psi, those tires would not meet the gross axle capacity of a 2500 SUV using that chart above and barely mine own.  But, as it is said, to each his own.

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
My comments were in the context of my tire size and the 275-55-20 that the OP is running.  Based on your size and at 38 psi, those tires would not meet the gross axle capacity of a 2500 SUV using that chart above and barely mine own.  But, as it is said, to each his own.


[emoji6]
Jimmyc! Enthusiast

Jimmyc!

Posted
Posted
On 11/19/2018 at 4:49 PM, rkj__ said:

Michelin Defender LTX M/S is the gold standard for on road tires.


Sent from my iPhone using Tapatalk

I had the defenders on my 15 and left them on with plenty of tread when I traded for the 18. My issue with them was towing and grooved highways. They’d get pretty squirrelly and did not inspire confidence. One mans opinion of course, you’re mileage may vary.

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
I had the defenders on my 15 and left them on with plenty of tread when I traded for the 18. My issue with them was towing and grooved highways. They’d get pretty squirrelly and did not inspire confidence. One mans opinion of course, you’re mileage may vary.


Same thing happened to me on my DMax with brand new KO2’s, ditched them for Michelin AT2’s, less aggressive but more aggressive than the Michelin Defenders I put on before the KO2’s. Personally, it happens to a lot more people than we all realize. Key factor is air pressure, load them up while towing but decrease for a smoother ride while not towing.


Sent from my iPhone using Tapatalk
Mozzer Enthusiast

Mozzer

Posted
Posted

My 2014 Work Truck spec 5.3 1500 came with LTs from new. Door sticker says 38 psi.

I have replaced the 17" steel rims with 18" alloys now & have P rated tyres, P rated were a good bit lighter weight than the LTs & I did do some research before buying P rated AT tyres & the 17" winters to ensure the weight ratings were sufficient (Costco still wouldn't install them as the ViN said it came with LTs).

Most LTs don't come with a mileage warranty & cost a good bit more.


Sent from my Moto Z2 Play using Tapatalk

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Atlas
      Some Assembly is Required

      By Atlas · Posted

      I think the answer is it's a stock 5.7 Hemi with a 3.0L blower bolted onto it 😉   Practically, because a blower introduces a lot of high pressure, severe thermal stress, and extreme mechanical loads on an engine. Things still need a little time to seat and get used to moving under load.   Sarcastically, because it's a Stellantis/ 5.7 Hemi and those things need all the help they can get!!
    • Donstar
      Navigating senior years.

      By Donstar · Posted

      It's been a little over three weeks since my second knee replacement.  I can now walk around the house without a walker or cane but still have a lot of healing ahead.  This morning I was able to bring a cup of coffee to my wife in bed.  A few days ago, this coffee would have ended up on the kitchen floor!  Knee replacement surgery is very common and will typically enhance the recipient's future quality of life. However, the recovery process can present significant challenges, pain and discomfort. I encourage anyone facing a recommended total knee replacement to welcome the opportunity.  Just be aware that your body may take several months to fully welcome the new parts! 
    • Atlas
      Some Assembly is Required

      By Atlas · Posted

      The Germans basically didn't make the list. There aren't a lot of shade-tree mechanics who work on them in general. At some point the economic equation of keeping a car alive favors junking it. Anecdote/experience tells me this is the case versus actual bad engines/engineering. Not that there isn't any, but there are definitely notable excellent examples. The 2.0 diesels will go forever and ever if one keeps the car around it running. The 2.0 gas cars eventually wear out their turbos but the block below it is usually still solid as a rock. BMW inline 6's same thing. Mercedes diesels of yesteryear, not uncommon to see 250k out of those engines, easy.     Link to the synopsis of the study: https://www.iseecars.com/longest-lasting-cars-study
    • Atlas
      Some Assembly is Required

      By Atlas · Posted

      0w20 is recommended in the Sequoia. 0w16 in the Highlander Hybrid.   I think you make a compelling case for both the quality and frequency of maintenance but I wouldn't go so far as to plot a linear relationship between longevity and oil weight 😉   The list is interesting and leaves me with some questions. The Silverado 1500 is 12.9% likely while the GMC Sierra 1500 is only 10.8% likely. Arguably, they're the same truck, so other factors must be influencing the outcome.   The Honda Odyssey ranks #12 at 13% likely. Great. Rest assured we'll never stop hearing about the dang thing LOL.   There's a bit of a spread between the 4Runner (32.9%) and Tacoma (25.3%). Both overlap on the same 4.0 for many years although the Tacoma used a 3.5 for the last 10-12ish. I wonder if that's related to use-case or if it's suggesting the 3.5 isn't quite as up to the task, or maybe something else fails mechanically.   Ram at 3.5% overall likely, but the Ram 3500 holds the top spot on the Heavy Duty Models at 39.7%. One might say the Cummins is a ringer and provides an unfair advantage. I don't think it's fair/accurate to pit the GM Fullsize 1500's in a list with HD's which are basically medium-duty wearing a 3500 badge.   The Tahoe and Suburban hold spots #15 and #8, respectively, on the longest lasting SUV's list. What's the difference? One's got a shorter butt, unless they're also counting the 2500/3500 Suburbans in those numbers.   The GMC Canyon gets a 1.4% increase over its twin brother Colorado. Why, because it's prettier?   SO many questions...
    • newdude
      2021 suburban RST - acting up/lights flickering

      By newdude · Posted

      Have the aftermarket system removed an re-test.  Its pretty much the only way to know if there is still an issue that is the truck and not from that.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...