I stopped on a hill and when i decided to start again (10 min. later) I pulled in the clutch the bike rolled forward a little and something made a loud snap noise, almost like a click but with more meat. After that i rode away and i have a strange sound out of the chain side. I have all gears and clutch is fine. The sound is hard to describe.because the bike is loud but it almost sounds like a chain is dragging. I had to ride about 2 miles back to the truck nothing else broke or locked up thankfully! Any Ideas on what may have snapped?