hey, i have some onza cranks and my tensile freewheel is stuck on it. i have tried getting it off with a bb tool but the freewheel is on so far it doesnt give any bite when you turn it. how can i get it off, without damaging it? i dont care about the cranks, they can be cut up if i have to. steve. EDIT: i have already tried hitting it round with a hammer and screw driver too.