So, I was cleanin up my bike yesterday, and I was inspecting the chain. I noticed one of the links seemed to be kinked, so I tried moving it around to maybe loosen it up. It does not move. I even tried moving it by prying on it with a screwdriver, but it won't budge. Should I be getting the chain replaced? I just bought the bike used from a dealer, and it still is under the 30 day warranty. I'm just thinking that when I talk to them about it tomorrow, they're gonna tell me something like "Oh, don't worry about that, it's normal, blah blah blah..."