Chain protection ring

by maakit, published

Chain protection ring by maakit Jan 10, 2013
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This is a chain protection ring for a Shimano Alivio 42 teeth chain wheel.

Replaced my chain wheel and the old protection ring didn't fit anymore, couldn't find a good replacement either so I made one and printed it.


Print the protection ring in your favorite plastic and attach it with 4 x M5 15mm screws and 4 x blind nuts.

Change the Openscad file to fit other chain wheels.

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Chain protection ring by maakit is licensed under the Creative Commons - Attribution license.

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Neat! I was thinking that a similar replacement part could be made out of Lexan cut with a laser engraver.