You could put some shrinkwrap/tube around it
All done, comparison with Berg hubs.
This is going on my Avio MK2 herringbone with the kegel attachment. Fits perfectly into the adapter with little play.
Thanks @frame.b022 for the tube caps once again.
this is ridiculously sexy
i got more valve cap if u want, whatever colour in chome
Does anyone remember the length of the M3 bolt for the dome cap? Im not at home now and cant remove it to check