Does anyone know if these are essentially the same? I will be doing the 3 mods, (with duals) and want to change tires to a more aggressive tread than stock knobbies. I am looking at the kenda bear claws, but they only come in 22", or ITP has some 20" mud tires. I don't want to put 15T on and the 22" tires only to find that its dogazz slow. Any comments?