Currently I have it set at the slightest pedal movement when the wheels are locked. Moving the chain up and down with my hand, easily over 1/2".

The chain is definitely not too tight.

But the chain is making like a "crunching" noise. Not in any one spot, any place. And especially when I push more power into it.

I even set it pretty loose to check and didn't change. It's a brand new chain. kmc z610hx. I also have a 1/2 link on it. There are no stiff links. The chainring and cog have maybe 400 to 500 miles on it.

http://www.amazon.com/KMC-Z610HX-Dro.../dp/B000AYFS6W

Is this normal when changing chains? Should I just run it for a week or so and see, maybe it just needs to break in a bit.