Originally Posted by
bobwysiwyg
That's what I was referring to, not sure, as a novice, it just looks like about eight potentially troublesome teeth on the third chain ring.
It's a shift/chain release point. Look at the short teeth where the ring is engraved with the size. Then look at the middle ring in the same area; you'll see shorter teeth there as well. There are none on the small ring because on that ring the chain only needs to shift up and not down.