They're Novatech Synergys.
SJS cycles seem to be the best for spares
https://www.sjscycles.co.uk/novatec-hub-spares/?page=2
Yeah, saw they were synergy cantilever hubs from novatech, just can't work out the freehub, messed up the title a bit!
To be brutally honest, I'd just get the rear rebuilt onto a Hope, DT or other quality hub with decent long term spares availabilty, worth doing with a carbon rim and if you're going to keep the bike for the foreseeable then it will probably end up saving you money in the long term.
Yeah, already been thinking like that, just looking for a decentish priced 28h rear boost hub, would tend to try and fit, i have a roval (DT240) hub that could do the job, but that would mean one wheel with Js and the other with SP, can i live with that!
It's basically a spare part, but could rebuild it with a shimano freehub and they still do microspline i guess, just need spokes!

