veloindy
New member
Having to roll down the windows to listen for tire noise is a pretty good indication, thanks! All the reports I've read said they would be quieter than KO's and so far that seems that seems to be true!
NEW BF KO2's mounted at last!
- Thread starter Adnasty
- Start date
Having to roll down the windows to listen for tire noise is a pretty good indication, thanks! All the reports I've read said they would be quieter than KO's and so far that seems that seems to be true!
So after almost a week, still loving the new KO2's however I have a very very light hairline rubbing when I turn hard right aggressively into a parking spot but that is all. It's just barely catching the front inner driver side fender liner and isn't a problem whatsoever. May take a sliver off if the rubbing doesn't take care of itself by wearing the liner. It's actually difficult to duplicate unless jamming the wheel which I very rarely do. Road noise still barely noticeable but ride rougher than I originally thought but might have been in a euphoric daze when I first got them. Doesn't bother me at all and anyone used to more aggressive 10ply AT's would more than likely be impressed by the ride quality on pavement. Thinking I may just go for all around adjustable shocks. Front 2.5 lift and rear Saw 1.5 spring lift. Anyone know approx install time/costs. I'd like to do it myself but finding the time where I can do it unrushed will be tough before winter. Not alot of places I trust here in CT to touch my runner however I found a Toyota dealer that will.
HighOnRice
New member
Why sir, nice tires you have there.
I'm looking to get a set myself!
I'm looking to get a set myself!
03_4x4Runner
Senior Member
I got my new 275/70/17 KO2 tires installed on my spare 2012 SR5 wheels yesterday. With the $70 rebate they were less than 1k out the door mounted and balanced at my local Toyota dealer. My local Toyota dealer was cheaper than Discount tire or any others in town. It looks like this is going to be a very popular tire. I took measurements before and after installation and the 4runner set 5/16 inch higher with these tires over my stock 20" tires.
03_4x4Runner
Senior Member
Not sure if you are addressing this to me or not but the Daystar lift in my signature was on my old 03 I traded in and not on my 14. The daystar lift was perfect for me on my 03. It was cheap, rode and handled like stock and gained the clearance I need for playing in the desert. I highly recommend it. A daystar or similar lift on my 14 is coming soon.
Just a heads up if anyone is still following this post...Called BF Goodrich for a recommended pressure for the 275/70/17 K02 with our trucks and it's 50psi. Had them way low because I got them on when it was warm and it finally got cold in the northeast. Def started to feel like marshmellows! I put them to 45psi and what a difference on highway but def felt I could go higher, glad I called them. I don't have much experience in LT tires so it was my own stupidity. Hope I didn't wear them too much while they were all the way down at 35psi for 3k! My tire guy should have probably known to go higher to start but then again I should have done my homework! Lesson learned, just glad I didn't pop a bead cornering on VT highways at 90mph...will never guess tire pressure again.
Randyman...
New member
Yep - LT (and yours being "E" loads) will indeed require more PSI to handle the same load as the stock P-Metric tires.
I was also surprised when the tire people didn't know this! I had to tell them to use 40psi (more than that and I start getting pre-mature center wear on my C-Load KO's) - they put it on the ticket. Even then they left them at 35 PSI! I asked if they inflated them to 40PSI, and had to explain that these were LT range tires, and the door sticker PSI is only for stock P-Metrics.
Gotta look over EVERYTHING EVERYONE does to your truck if you want everything done right (that is if you are extremely anal like me
some people couldn't care less - including the ones doing the work on your truck).
03_4x4Runner
Senior Member
I have my KO2 tires 275/70/17 tires at 34 psi. Even at this pressure the outside edge of the tires does not touch the ground with a stock SR5 wheel. The little letters molded into the edge of the tread is still there and I can tell when I drive into the garage that the edge of the tread is not touching just looking at the dirt pattern on the tread. It seems to handle fine to me at 34 psi. I could not even imagine running 50 psi with my stiffer Limited xreas suspension. That would be way to rough a ride for me. I started at 40 psi and on a slightly rocky dirt road it rode terrible but the stock 20" tires ride terrible on this road also. If I air down to 25 psi the ride really smooth's out but I air up before hitting pavement.
Link12
New member
The KO2's look great. I have a 2008 Tundra double cab 4x4 5.7. The factory Bridgestone tires wore out at 20k. The outside edges anyway. I put 275/70R18 (33x11R18)BFG KO's on it. I run 45psi in the front 30 in the rear unless I'm towing my big trailer then I bump up the rear to 50psi. If I don't air the back ones back down it wears the middle out. I know have 56k on the truck and they have another 10k or so left in them. The KO2 will be my next tire for it. Just ordered 255/80R18's KM2's for my 3rd gen. Looking forward to getting them on there.
Randyman...
New member
For my preferences, 40PSI is about as low as I prefer with stock sized KO's. Any less and they begin to feel spongy like the crappy stockers (MPG goes down, too), any more and the center tread-wear is accelerated and greatly lessens total mileage possible from a set.
I got very close to 60K from my last set of KO C's, and ran them at 39-40PSI. Only had minor premature center wear (the ~5K I lost was worth the tradeoff versus a spongy ride for 60K Miles IMO).
I disagree with you on this - having a LT allows for HIGHER pressures for GREATER loads, not to handle the "same load" on the pmetric as you state.
are you running a LT for the greater load capacity or the extra sidewall plys/rubber for cut protection? If you have not increased your load you need not increase the pressure.
Randyman...
New member
Not a ton of extra load, but I do have my cargo area loaded down with a permanent 300lbs or so (granted not enough to justify an LT upgrade, but I strongly prefer the ride and handling from LT's stiffer sidewall on these heavy-ass trucks).
@ 35PSI with LT KO's, the ride was way to spongy for my liking and MPG also took a noticeable hit. 40PSI and it sharpens up, MPG is acceptable (lots of highway miles over here!), and as mentioned, I just got about 55K miles on my last set of KO's @ 39-40PSI on my current T4R (just got a new identical set last month and keep them @ 40PSI).
Works for me and my preferences on my truck. 55K from any set of tires is pretty darn good IMO, much less from an LT All-Terrain tire. Handling is so much better than the stock P's (also tried running the stock P's a bit higher PSI to kill some of the 'sponge', but it didn't help much at all)....
Thanks for the information Adnasty. I'm looking at at a 2015 4Runner Trail Premium and I'm a huge fan of BFG's. Put 110,000 miles on my first pair which were on a Honda Element. My current Second pair on the same Element are going on 140,000 miles, but are currently due for replacement.
Good to know that the 275/70/17's fit without any issues. I was wondering just this as this is the exact tire I'm going to put on the 4R when I purchase it.
Had you noticed any further rubbing issues besides what you described earlier.
BTW, I'm in RI.
Thanks,
Rich
Good to know that the 275/70/17's fit without any issues. I was wondering just this as this is the exact tire I'm going to put on the 4R when I purchase it.
Had you noticed any further rubbing issues besides what you described earlier.
BTW, I'm in RI.
Thanks,
Rich
Went up to 50 as recommended and wayyyyyyyyyyy too stiff, feeling every damn bump on the road. The guy I spoke to from BF seemed like he was totally referencing a random chart he found online and didn't seem to have a clue to be honest but nice guy. At first he said 35 then corrected himself to 50. I'd say 40-45 is the right mark for stock trail wheels with the K02's for me and all my pavement driving and highway flying. Black-Dog, same rubbing issues as I said but only when I jam the wheel into a parking spots and it's not bad at all. I will trim eventually but it's so minor so wouldn't take much at all, maybe 1/4 inch at most. Def like the tires a lot and road noise is non existent as far as I'm concerned on pavement and highway. Seem to not handle as well at high speed on highway curves as the original KO's did but that was also on an FJ which weighs much less so not sure if that is why along with the 10 ply sidewall...Ordered my Gobi Stealth from Trail Duty last night, next it's time to level my ride as that rake is really bothering me even more so with my nice new tires calling my attention to it every time I gaze at them...It never ends!
He's referring to the "nose down" attitude that these trucks have from the factory. It's common to add a little lift to the front only to "level" the stance.
