Folks, I figured I'd get a better response here, but I have this weird issue with my chain. When I adjust the chain tension to my liking and lock everything down, when spinning the rear wheel, the chain tension seems to fluctuate from tight to not so tight. I don't understand how it could alter in tension? I even have new sprockets and chain installed and everything is locked down. It's almost as if something is bent, but with new spockets and the bike never have been in a wreck, this isn't making sense. The bike seems to ride fine at the track as well? Please discuss.