Originally Posted by
MiniPops7
It's definitely aluminum. It was just a very small bend in the end (near the pedal, can't even see it, only felt strange when riding). Total displacement along the crank was probably a half a centimeter. Still think I'm in trouble?
That's a lot. You can be in trouble and not know it until the crank breaks. From personal experience I can tell a crank arm can break suddenly and do serious damage to flesh and muscle. The part isn't expensive so I would just go ahead and replace both sides and ride without worrying about it.