At work last week some ass hole banged something into the back of my bike. The rear skewer somehow mangaged to snap. Ever since their has been a strange clicking (almost like a scratching noise) coming from the rear of the bike. I took the wheel off I realised thier was a bit of side movement in the cassette. Also when I rotate the wheel it isnt nearly as smooth as it used to be (their is no play when the wheel is attached to the bike). Do you think something has come loose (wishful thinking) or do you reckon i'll need a new cassette? The cassette I have is a Shimano HG-50, 8 speed, 11-32t
Here's the full spec: http://www.specialized.com/SBCBkMode...untain&my=2003
p.s. should you grease a rear skewer before you install it?