So, to the uneducated, what is the main difference between the ko2 and km3. How is the on road performance in comparison?
KM3 vs KO2 Summary
Each of the tires is fantastic for its own reasons. The KM3 are unstoppable in off-road terrain and the KO2 handles everything short of extreme off-road terrains very well.
Anthem Off-Road has a great article as well as many other write ups if you search BFG KO2 VS KM3.
It's basically a Use/Preference personal choice. If your mostly highway driving with Off-Roading a few times a month the KO2 is probably your best choice except in an "E" load range. My 2010 came with E-range and I used them for many years and over 100k miles. The "c" is a "nice soft" ride but useless for my terrain (lots of rock, and then more SHARP Rocks) The articles talk about the outstanding sidewall protection in the KM3 I as you can see, I Need that Protection. I'm in the Desert Rocks and Sand 2-5 days a week, so I love the KM3'3 for what I do. I still tow my Winnebago with the KM3's without any issues.
I'm a BFG fan-boy just because they have gotten me home for over 30years of Off-Roading in Jeeps, Hummers and Raptors. There are many other great brands that people swear by and several threads on here about them. This all of course is my humble opinion based upon my experience and use. All I really know about tires is they are Round, most of the time, Go on my Raptor and are EXPENSIVE AS A MFER!