Very recently I bought my first new bike! I only did 750km on it so far. However the the chain rings are showing some level of wear, see picture. The teeth used to be all black, now you can see bits of silver on them. I just want to care for the bike with everything I can do. So let me know if this is because of misuse somehow. before the teeth were all black, now you can see bits of silver.

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    Looks fairly normal to me. Oct 15 '21 at 22:25
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    The paint is part of the coating and one of the first things to peel off. Looks normal to me, even the Mona Lisa is falling apart. Oct 15 '21 at 23:27
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    It’s just paint. Juhist will soon arrive and explain how these chainrings can last 10 thousand kilometers, so don’t worry.
    – MaplePanda
    Oct 16 '21 at 3:12
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    This only begs the question, why did they paint the chainring in the first place? They must have known that the paint would peel off pretty quickly, and that the chainring would look much worse from it than if it had not been painted at all. Weird world. Oct 16 '21 at 7:24
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    @cmaster-reinstatemonica - probably easier to pain the whole thing than to have a tricky and messy mask to do the body and not the teeth.
    – awjlogan
    Oct 16 '21 at 8:04

Chainrings are special wear items in that they can be used even if severely visibly worn. It is very typical of used chainrings to show wear in the points that transmit forces, being a visibly different location than the points that don't transmit forces.

In some chainrings, it is possible to "rotate" the chainring on the crankset to even out the wear. However, your chainring seems to have these unfortunately new trendy non-even bolt patterns so "rotation" is impossible and you can't prolong the wear life of the chainring past what it experiences at the fixed orientation.

I remember seeing a picture of a chainring that was used either 300 000 miles or 300 000 km (don't remember which). It was by Jobst Brandt, the author of The Bicycle Wheel. That chainring was rotated multiple times in its wear life to even out wear. Unfortunately, I didn't store that chainring picture and it's gone from the 'net now. The 300 Kkm / Kmile chainring had practically no teeth left yet it still worked perfectly.

There's a long way to go until your chainring fails.

  • That’s reassuring, thanks!
    – A. Jahin
    Oct 17 '21 at 1:15

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