Originally Posted by
jimc101
Have you looked at the teeth at 11 o'clock on the OP's photo? they are not what you expect for profiled teeth, have a look at the example below, at the same location as the Op's there is no profiling, on the OP's, the 'profiling' is sudden, and indicating that there is probably damage, such as from hitting a kerb.
A valid point, though I do seem to see the same 2 teeth exactly opposite the crank arm, offset 90 degrees from the position in OP's photo. Again, I'm not sure. Like I said, I'll check around when I get home.