They took a lot of weight to balance, some upwards of 20 ozs., on the same wheels I just removed the exact same size KM2 (37"x12.50"x17") off that had been running smooth as silk with no weight for almost a year.
Even with weight they shook.
On the road, they started out as quiet as the KM2's, but after about 2k miles they started getting really load.
Off road they packed up with mud and would not clear.
Off road in muddy conditions they had terrible lateral support on rocks, the entire truck would slide sideways off rocks at once, where as with KM2's they will stick to the muddy rocks. And yes....the 4.7-L has amble power to spin them and clean them out, but unfortunately it took a stick and manual labor to clean them.
The minute I put them on, the truck immediately started pulling to the passenger side fairly hard. The day after we arrived back home I took the turds off and threw my KM2's back on and they truck quit pulling to the passenger side and was back to riding smooth with no balancing......The "pull" was in the same direction that all four had their long tread bars angled toward....go figure!
A few months later I installed a set of 40" KM2's, no weight, smooth as silk, still no pull to the passenger side.
After an extended period at around 70 MPH on the interstate we started smelling a burning rubber smell, pulled over and all four tires were hot and sticky - thanks to the lovely tread pattern I guess the tires were trying to destroy themselves.
During our trip, I spoke to everyone there (running the same tire on various vehicles and various sizes) and they all had experienced some of the same characteristics.
Even though I didn't cut a sidewall during our trip, I witnessed five in a row cut on one obstacle, and two sets of Irok radials walk right up it.
They did not work for me and will never be on any vehicle I own ever again.
Don't get me wrong, KM2's aren't perfect either, none are. But the only gripe I have about the KM2 is that in extremely aggressive rocks the sidewalls are not strong enough.
Even when the KM2's pack up with mud, they continue to keep biting and moving my truck in the right direction........
All that being said, that's just
my experiences on
my truck, you may try them and love them.....who knows. I've talked with friends out West that love the MT/R's.....me.....not so much. I didn't like my old style MT/R's either, cut a side wall the 1st trip out years ago, but I can say the originals were a helluva lot better than these new ones with their "confused" tread pattern.
They tended to pack up with mud and keep it with them, hence no lateral traction -
They did "OK" in the complete dry though -
Call me partial, but for my rig, KM2's just work better -
Even though I've heard people comment that BFG's suck in the snow, mine flat get it in the snow, this year was the 1st time I got to experience them in the snow and I was extremely happy, may be my rig's weight....dunno -