This chain ring probably has 10K miles on it. It is the middle ring
of
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a triple and sees 98% of the use. When you have an 11-34 in the rear you don't need anything else in front!
I am wondering if roller wear has contributed to the demise of this chain ring since roller wear is not really measured by most chain gauges or my ruler gauge. Is this parameter important and how does
one
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measure it?
Wearing out a middle ring that fast isn't surprising since it has a higher chain load and fewer teeth. If you're really bothered by it, replace with a steel ring, for a modest weight penalty it'll last much longer.
