A.
anwered by: canteau
The Surly Ice Cream Truck uses thru-axle hubs, 197mm in the rear and 150mm in the front.
While the hubs are standard thru-axle and will work with any brand that makes fat bike thru-axle hubs, the Ice Cream Truck frame, and fork use Surly specific thru-axles and are not compatible with RockShox Maxle or DT Swiss RWS aftermarket thru-axles.