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    Can I safely put a hole in here? Older Alu-MTB Frame, which needs a proper mudguard. Want to use it as a City-Bike

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    15 Comments

    2. Extra-Phase7840 on

      Why not use a ziptie?

      If you insist, consdering that most frames come with a hole there, it should be fine. Just make sure its a clean hole without introducing sharp edges or cracks.

    3. Powerful-Scratch-107 on

      Should be fine, I have a hole in the same exact spot on my Alu frame, 5mm should be ample.

    4. owlpellet on

      You can do this wrong in various ways, but if executed cleanly, safe to try and zero risk ongoing.

    7. GrouchyRegister7444 on

      Most fender come with a clip either preinstalled or in the parts bag. Or as others have mentioned zip tie works fine.

    9. AgitatedBarracuda134 on

      Could drill and tap just the tyre side of tube, would look a lot neater and one less hole in your frame. Or drill and fit a rivnut insert..

    10. MariachiArchery on

      “Our frames are not tested to be ridden in a compromised state.”

      This is the answer you’ll get from every manufacturer. That said, I think you are good to go here. That tube is likely exposed to very little stress, and putting a small hole in it shouldn’t be a big deal at all. I’d say go for it.

      People have been drilling holes in alloy frames for a decade to accommodate Di2 cables, and that is way more sketchy than what you have planned. You’ll be fine.

      Also, these MTB are overbuilt. Its meant to take some abuse.

    15. dopadelic on

      I just installed city bike mudguards on a MTB and there were holes on that exact spot for me to install them.

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