yeah I know it seems 27.5 is somewhat dead and while I found some replacements I dont want to pay more then half what I paid for the whole bike for just a wheelset. In between blowing out my spokes on the MTB I also blew out a gravel tire so I decided to replace the tires first since the gravel bike gets ridden more.
Front Wheel - SUNringlé Duroc 45mm 27.5" alloy straight gauge Wheelsmith spokes, brass nipples
Rear Wheel - SUNringlé Duroc 45mm 27.5", 148 x 12mm thru-axle, alloy straight gauge Wheelsmith spokes, brass nipples
I have come to learn the 45mm size was OEM specific for this bike so they can't be purchased separately unless its someone's take offs. I run 2.8 tires so I dont know that I want to go any narrower although I guess 40mm could work but not 100% sure.
I do have my eye on a pair of Duroc 50s for a decent price, but the seller is flaky and keeps dropping off the face of the earth for a week at a time. You would think if you have an interested buyer after not selling them for many weeks you would be more responsive but hey thats just me.