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oheyitsd
@Jonny69
It’s only the crown race which is different with JIS size, right? Assuming it’s sealed bearings, you could use the angled 27mm crown race you’ve got and pick a different ISO alloy headset to use with it. Most of them use the same angle crown race. As Tester said, the Tange is the usual choice for low stack. Also Stronglight might be an option as it comes in black.