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Congratulations to Chris Lawrence for "Dragon's Grip" being selected as Turning of the Week for March 30, 2026
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I have the set for a 1" post. The threads look to be 1/2-20. I used a set of threaded gauges to measure. The cross bars thread onto an M12-1.25 and seemed OK. But the male post does not fit it M12. Post is definitely bigger than M12. I don't have M13's to try, but it doesn't "look" like it's a full mm bigger than 12mm. It almost fits the 12-1.25, definitely does not fit the coarser threads. The 1/2-20 fits nicely, both post and bars, and tightens down good.
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