The executioners are very good off road tires compareable with tractor tires.
On tarred streets there are a little bit rough and offers
not much lateral support.
I´m german; sorry for my bad english.
Nothing works with original tires :( . Now i have mounted Kenda Executioners K538 in 25x8-12 and 25x10-12 :)!!! Filmed by my friend Martin.
http://www.youtube.com/watch?v=GMDyPR-6gN0&feature=player_profilepage