[Yak] NWT Chain Falling off

[Ben Piper]

--------------original message--------------------------
>My NWT started losing it's chain when I put stress on it (ie: 
>standing and starting after waiting at a red light).  This can be 
>quite painful.  I have checked all my bike joints and they are 
>tight. The chain is good and has been recently lubricated.

"Let me take an educated guess: you replaced the rear wheel, or the 
cassette, but did not replace the chain. You have 1000 miles or more 
on the chain."
-------------------------------------------------------------
I had a similar problem. I suspected it being worn cogs when I replaced
the chain, but it turned out to be a couple of slightly bent teeth on
the chain ring. I straightened them out with some piers (there's
probably a better way to do it) and it was then as good as new. I'm
still not sure how they got bent. My suspicions are that they got bent
when the bike was folded in the trunk of the car.

Check for bent teeth before replacing the cassette (or chain). Take the
chain of the chain ring, spin the crank and look to see if any of the
teeth look out of alignment with the others. Mine were only slightly
bent and it was hard to see when the crank wasn't turning.

-Ben