I think it's quite easy to convert rear threaded spesh/hed 3 to 100mm. Then you can screw a disc adaptator such as this one:
Front and rear are identical, at least on my Specialized tri-spoke, still have them and could probably get a snap to show what I mean...
@coventry_eagle started
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I think it's quite easy to convert rear threaded spesh/hed 3 to 100mm.
Then you can screw a disc adaptator such as this one: