I don't know if anyone else has this problem with BFG muds, but every single time I air down to anything below 20psi and wheel in any type of mud or snow I end up with leaky beads. The next day I usually have at least 3 completely flat tires when I wake up. I love everything about the BFG MT other than this. The wear life is excellent, and the traction is superb. I won't be buying them again though because having flat tires all the time is getting pretty annoying.