I get a little vibration between about 15 - 22 mph that I believe is being caused by a small tight spot on my chain. The chain only has 7200 miles on it and I've taken pretty good care of it. The cahin has plenty of adjustment left, it seems to smooth out at speed, and it really doesn't bother me much. I'm wondering if anyone else feels this and if it might cause me other problems that I haven't thought of.

TIA,

Keith