Originally Posted by
Happy Feet
Sometimes if a chain link or two sticks, from rust or reinserting a pin after using a chain breaker, that sort of thing can happen. If you get it back from the shop with no answer, try running the chain through your fingers to see if the links flex smoothly.
It's a brand new bike though...it's only logged about twenty minutes of me cruising around a deserted parking lot to try it out...