BFG KO2 34x10.5/17 review. - Jeep Wrangler Forum
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Old 07-26-2015, 09:25 AM
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BFG KO2 34x10.5/17 review.

Thought I would throw this up for those interested. I just put about 2500 miles on them in the last week.

Little background. I normally run Toyo AT2 in 35x12.5/17 on 17x9 rims with 4.5" BS. I have a 2014 jkur 4.10 auto with 2.5" lift and wheel a fair amount. car as over 30,000 miles (yup I called it a car it is a dd) Get good mpg have made 2 trips to Moab in the last year each around 2500 mile round trips and I keep good track of mpg at each fill.

Decided to hit the San Juan area in Colorado and ended up scoring a deal on a new set of KO2's the week before the trip and I figured I would not be doing anything more extreme then Poughkeepsie and I am headed to the Rubicon Trail in a month I wanted to save some wear and tear on the Toyos for that trip.

I mounted the KO2's on my stock rims with Spidertrax 1.5" spacers (needed the spacers to clear the rear swaybar links). The KO2's run small and skinny about true 32's. I normally run my Toyos at 26-28psi and they are 20-22lbs heavier per tire/rim combo then the KO2/stock rim combo and 2" shorter and much narrower, for the trip I ran 35psi. So right off the bat I felt like I added a turbo to the 3.6L much peppier and braking was like stock and handling excellent hands free at 75-80mph.. Now I figured mpg was going to increase a bit but I got the same mpg I have been getting. I use a procal and my speedo and tripometer are exact and each tank was hand figured not evic figured. same 16-19mpg I always get on the stretch from Missoula to Green River and Green River to Missoula.

The KO2's did great on San Juan area trails ie Black Bear pass, Hurricane Pass, Engineer Pass, Imogene Pass, corkscrew, Ophir, Cinnamon and Poughkeepsie. They did really well on hyw 550 between Ouray and Silverton which if you have traveled know that it is designed for motorcycles not lifted jeeps.

The only time as far as trails went in the San Juan area that I did that I wished I had my Toyos was on the wall at Poughkeepsie as it was pretty dug up apparently from the FJ summit event that had just taken place. The extra 2" and width would have handled the wall easier as I did not have a good spotter so I would not have dinged my cross member .getting up it. The trails in that area that I did are relatively easy and other then Poughkeepsie could probably be done in a Subaru or CRV.

All and all a great tire and really good highway tire altho no better than Toyo E rated AT2's. If I could only have one tire I would stick with the Toyos but it will be nice running around town with these as more responsive both starting and stopping.

I wish BFG would have made them at least a true 33.5" tire. I only bought 4 so I needed to borrow a spare from my buddy and is a KM2 in 255/80-17 on stock rim and it is slightly taller and slightly skinner.

For running around I will keep the KO2's on but for any medium/serious offroading the Toyos go back on no doubt about it. If the KO2's were taller I might flip a coin but they are not.

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Old 07-26-2015, 09:19 PM
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going up the wall at Poughkeepsie

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Old 07-26-2015, 10:46 PM   #3
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Thx for the review. Your rear sway bar links stock? Curious why you need the spacers to clear them. I am considering the KM2 255x80x17 and KO2 34x10.5x17 as replacements for my stock KMs (currently on 2.5" lift).
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Old 07-27-2015, 05:44 AM
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No I have jks adjustable.
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Old 07-27-2015, 12:11 PM
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If you still have your stock ones you probably will be fine as far as clearance altho really limiting your rear droop. Problem with longer ones is the end of the link (if your swaybar is set up properly ie -3* or so) is right at the bulge in the tire and very close so if flex right it can poke your sidewall. stock length one get that high if that makes sense.
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Old 07-27-2015, 02:38 PM   #6
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Thx - that all makes sense. I have an AEV 2.5 lift (using stock rear links and stock wheels). The real problem I have is parking garage height -- I am within about 2 1/2 inches of hitting the ceiling beams at home (6.4" clearance) and can't even park at work (6' clearance). My head says get the Ko2s in 34", my heart says KM2s in 255/80. Interesting to hear you note that the KM2s may be slightly taller than the 34" KO2s. By the way, love those trails in CO you described - I need to go back and run them again. For the most part, not technically difficult but the scenery is breathtaking.
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Old 07-27-2015, 02:48 PM
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they would add less than 1/2-3/4" or so to actual height compared to stock bfg 255/75-17 remember actual height difference/2 and these measure actual 32.25". yes absolutely breathtaking.
If you look close we go around a corner as a hiker chick drops her pants and squats to pee. Not sure how she did not hear us coming lol.
It is a bit after passing the 3 stoned chicks sleeping right on the edge of the trail. Lucky if they did not end up getting run over.
https://www.youtube.com/watch?v=TGaJQSvn2sE

and Poughkeepsie. Spotter tried to be helpful but a little too animated.
https://www.youtube.com/watch?v=MWznsvdrvzE
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Old 07-27-2015, 05:01 PM   #8
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Always amazing what kind of wild life you will see on the trails

Your spotter on Poughkeepsie was entertaining.

Yep - I figure about 3/4 in from new tires. I may also put a 1/2 or 3/4 in spacer on the front to compensate for the rake from the bumper/winch combo. Together, I would be within an inch or so of scrapping the roof. I have had friends literally wedge their vehicles under these concrete beams -- not a pretty sight.
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Old 07-27-2015, 07:35 PM   #9
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Wow, that's some breath taking scenery... Lucky!

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