2.25 Ardents here all year round…mud rock whatever…
There are other combinations of Fat front too depending on Fork choice, the enabler isn’t suitable for 26″ frame builds, you would want Surly, vicious or Fatback forks for that really.
Surly has rear brake spacing so requires the use of a rear hub on the front, the others take a genuine 135mm front hub.
other Rim choices are kris Holm, Speedway (fatback)
Other hub choices (depending on fork) are (135mm) Paul Components, Phil Wood, Fatback and Hadley
(135mm rear disk spacing e.g. Salsa enabler/SurlyPugsley) Any rear you like although Single speed hubs are the strongest due to lower dish build.
And yes I am a Fatbike saddo.
the Surly fork is available as the 135 offset for rear hubs using a rear disc mount-as comes with the framesets and also inline to to fit a regular 100mm front hub with standard front brake mounting 😮
Fatbike owner too but far from sad for it 😉