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Sept. 8, 2016, 5:54 p.m. -  DrewM

#!markdown Hi Nat, You don't have to worry about offending me with a question and I read your tone only as curious. I appreciate you taking the time to read and comment. I was really unclear there (apples : apples). I don't have issues with the chain derailing from the single speed as the ring wears - as you note perfect chainline / though that may not be the case with the Oval - but as the teeth wear down chain fitment gets sloppy and it is perceivable less efficient. The Renthal ring has visually significantly outlasted other rings. First the anodizing had no signs of wear after a month when I'd expect it after 1-2 rides. Then the teeth simply didn't wear down at the same rate. Normally I've taken a file to my ring to remove burrs that form way before now. I wish I had photos of a few worn out rings. On geared bikes as the narrow wide rings wear they definitely loose chain retention capabilities. I've experienced this on my own bikes and working in shops. Hope that's better clarity.

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