Last summer, I had six weeks to visit Colorado and southern Utah.
The XJ's KOs were worn out and no new ones where available, due to the change to the new KO2.
I could not find any 33"x 10.50-15 tires except the new KM2s, so I got a set for the trip.
For the Rockies, in the summer, they worked great but we're slippery on wet roads and do always hold hard corners, on dirt or gravel, when driven fast.
The sidewall are very stiff, compared to the KOs and required very low air pressures to get them to soften and grip better.
The are noisy at low speeds but quiet down as the speed increases. The sidewall appears to be very resistant to cutting from sharp rocks.
It a good off-road tire but not an all-season tire IMO.
Returning home, I found the new KO2s would be available soon and ordered a set. When installed, the difference was night and day.
The KOs were smooth and very quiet, compared to the KM2s. The ride is much softer and at freeway speeds, better handling, plus good wet weather performance.
Offroad, they have worked as well as the KM2 but they have not been used in shape rocks yet, where the KM2s beefy carcass provides good protection against punctures.
In the dirt, with the KO2s, I can once again drive hard on dirt rodes without the worry of the rear end unexpectantly breaking away.
For a mostly trail rig, the KM2s are a good choice. For an all purpose rig, that is regularly street driven, the KO2s are my choice. Both are good tires, for their designed purposes.