Hello all....Riding home from work yesterday, I noticed that when I moved out in first gear I was hearing a strange clicking sound. It seemed to me like the sound when switching gears. The bike made little herky jerky moves as this was happening. Same thing when I was slowing down. The sound was definately coming from the back of the bike. I got a little worried and pulled into a gas station. I checked all the wires and chain, not knowing exactly what I was looking for. Just wanted to see if anything looked out of the ordinary. I figetted with the wires. Lo and behold, when I left the gas station(about 2 miles from home) I didn't have the problem....Any ideas of what this could be?