Originally Posted by
Dan Burkhart
Although I have never tried it I think I would go with FB’s suggestion.
I just measured one to give you an idea of the dimensions to shoot for.
the flattened area is 3mm long and 1.3 mm thick.

Thanks. Though my spokes aren't aero, and the flattened area is 1.7 mm thick (and the adjacent area is 2.3 mm diameter). I think a standard spoke might squeeze in but I haven't got the replacements yet to try it.