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Tearing apart an old mountain bike and this thing was black with ~20 years worth of crud. You can see a few of the teeth have been worn down to nubs. And that's one of three front chainrings.

They'll all be replaced once I convert it to an ebike, but for now it'll do it's job. I want to have it for the summer riding season and take the winter to swap it over, when everything is cold and snowed in.