I'd guess a helicoil would work great to fix that. Should be a pretty easy fix.

No shaming needed. It happens often enough.

Is the thread carbon, or an alloy insert?

Not sure about carbon, but if it's an alloy insert you can use a helicoil to replace the thread. Something like this. I see that thread kit doesn't include the 't' part of the tool that attaches to the tap. Sorry, don't know the terminology, but I see it in the top (middle) of this kit.

Edit: the thread kit I referenced has M5 (even M6) threads, which is commonly what you need for seat post bolts. Having said that, I can't say with certainty that's what you need. There are other kits on amazon that might be more appropriate for cycling that include smaller M sizes in addition to M5 and M6 threads.

Carbon threading?

If it's a Shiv Tri from the first few years of production this was a known flaw and a warranty issue.

https://forum.slowtwitch.com/...%20warranty#p5921904


https://forum.slowtwitch.com/...%20warranty#p6065974

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Thank you!

Thanks for the great overview!

I thought so, but taking a closer look now

Thank you but this one is a 2020! I know...even more pathetic!! LOL

NP. happy to help.

Looks like titanflexr has the best recommendation from someone who has solved this problem on a shiv frame. As he pointed out, check out this post. that other poster used a time-sert, which seems to be a variation on the helicoil.

when helicoil fails.... need to drill out the bolt. that was 2 days of fun for me (yes electric drill, diamond tip). other idea if bolt has head is still exposed, sand the sides down and use vicegrips to twist out