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  1. Yeah, goes without saying but I wouldn’t do that to an aluminum frame since they’re heat treated and would likely be weakened by a hole like that.

    On the other hand, if you’re dropping chains a lot do you have a clutch and narrow wide chainrings already? It’s not normal to need a chain guide too often these days.

  2. originalusername__ on

    What about a chain guide that sandwiches between the bottom bracket shell and frame?

  3. I would risk drilling elsewhere but not around th bb. Seems a lot of bikes snap around there

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