this post was submitted on 12 Aug 2025
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Perfect hole for internal cable routing!
But seriously: I’m impressed and glad you found it out now! Do you leave your bike outside under rain and sun or is it due to sweat?
It was primarily kept inside a garage, usually on a wahoo Kicker, so that is all sweat. I guess after my virtual rides in the garare it didn't have enough time to dry off and would just sit in sweat. I did have a IRL crash recently (see my post history) on that side of the bike, so it's also possible the hole came from that as well.
TIL sweat can cause that much damage to aluminum.
The other side seems fine. I think that side may have been compromised a few years back when I had it up on a stand and it fell over.
So like a scratch in the coating (anodized layer I suppose) that let the salty liquids corrode the aluminum, right? Interesting, thanks for posting :)