As the wife of an ABSOLUTE DIRT BIKE JUNKIE, I can testify that the two shows have very little in common except for some key production team members. The content is totally different.

Nitro Circus is actually a helluva lot better show than Jackass ever thought of. Try watching and you'll see.

'Round here, Travis Pastrana is THE MAN. Dude separated his spine from his pelvis, for crying out loud, and is only one of two people in the WHOLE WORLD to survive the surgery to fix it. And he still jumps outta planes and off perfectly good cliffs. Crazy bastard. Wish I could meet him.