Ticking Sound While Rolling In Neutral

Hi guys, my GSX-R was just dropped its right side on to grass. The right indicator snapped off, but that's an easy fix. My big concern is a ticking or knocking sound that happens while I roll the bike in neutral (with the bike off). It definately wasn't happening before the bike was dropped. It's not brake related since the noise is faster than the wheels are rotating. Any help would be much appreciated. Thanks, -Luke

my 600rr makes a knocking noise when i roll it around in neutral.. dunno waht it is...........

It seems to have stopped after letting the bike sit upright for a few hours. Weird!