This is the bung and top cap.
So fit headset, spacers, stem, 5mm spacer above stem. Make a mark. Remove all parts, and measure down 2mm and cut here.
If that's right, then when everything is fitted, then the top of the bung will sit flush with top spacer?
No you'll have to remove an extra 2mm for the bung
@PhilDAS started
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This is the bung and top cap.
So fit headset, spacers, stem, 5mm spacer above stem. Make a mark. Remove all parts, and measure down 2mm and cut here.
If that's right, then when everything is fitted, then the top of the bung will sit flush with top spacer?