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Timeline for Headtube dent, how safe is it?

Current License: CC BY-SA 4.0

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Dec 21, 2018 at 21:32 comment added Alessandro Cosentino Good point on taking regular photos, I will finish the build, start riding, and monitor how the situation evolves.
Dec 21, 2018 at 21:10 comment added Criggie @ArgentiApparatus excellent point - braking forces will push the inside of the dent somewhat, and given its already deformed one way will be easier to dent the other way, being aluminium.
Dec 21, 2018 at 21:09 comment added Criggie @jefferybell in addition to inspecting, I'd suggest OP takes a photo every couple months to compare and make sure its not slowly deteriorating. I have a crack in something and because I see it every day, slow growth goes unnoticed. But comparing back to a year-old photo I could see the slow progression.
Dec 21, 2018 at 21:09 comment added Argenti Apparatus @Criggie true, but when the wheel is forces backwards, the top of the steerer imparts a force on that forward section of the head tube.
Dec 21, 2018 at 21:04 comment added Criggie @ArgentiApparatus if it were at the bottom of the head tube, that's where all the weight is carried by the bearing. The top bearing is more for alignment and it also carries the weight of the fork and front wheel when the tyre is off the ground. So it is a low(er) stress location.
Dec 21, 2018 at 20:23 comment added Argenti Apparatus I'm not sure I'd say the location of a major bearing is a 'low stress area'. During normal riding any bumps to the fork are transmitted right into that area on the front of the headtube
Dec 21, 2018 at 19:33 history answered Jeffrey Bell CC BY-SA 4.0