I have a quiet, constant, tickity-tickity noise coming from the rear (fixed) sprocket of my flip-flop hub. I think the fixed sprocket is spaced a little closer to the hub than the freewheel sprocket, causing the sprocket teeth not to catch the exact middle of the chain rollers.

Chain tension seems fine; I could probably stand to lube the chain; but my question is this: Is is dangerous to run a fixie when the rear sprocket doesn't catch the exact middle of the chain rollers?

Besides the minor noise, should I be worried about anything?

--> '08 Redline 925, stock drivetrain