Having now got a pair of disc calipers that will go onto iso-postmount adapters I am converting the unused vtt frame to 650b (for purely ideological reasons
). I have a pair of 32h rims coming, the Alfine8 is 32h but I don't have a 32h front hub, my existing disc front wheel is 36h (when I built it I had a couple of spare 36h 26" rims and no Alfine hub). So I will have to get a new 32h disc hub. Before anyone asks the Alfine is nutted, everything else is q/r.
The Alfine is centrelock, the existing front hub is iso. Do I get a new iso hub to reuse the existing front disc? Or a centrelock hub to match the rear (which means buying a new disc)? If I go back to a derailleur on this bike I already have 32h iso rear hubs (only a consideration at present if I bork the Alfine).
Just for the looks of the thing I would consider also taking the disc off to use the wheel in a non-disc road frame (which might favour centrelock on aesthetic grounds).
What does the panel think?