If a bogger is a 10 then an Irok is about a 7 in the mud. It takes some wheel spin to clean them out, but they clean pretty good. Way better than a BFG radial or standard type mud tire. They have less tread height than a TSL but the treads are cupped like a bogger and spaced out further than a TSL. I've had mine stuck a few times, but TSL's fared no better, only boggers made it through.