Cone/lock nuts that hold the freehub to the axle will have backed out from underneath the freehub itself. Don't know that hub exactly but usually have to take cass off, then adjust and lock off the nut under there. Sometimes there is a nut and a lock nut (cone hub style), and other times its one nut on the end of an axle tha tyou have to put a big allen key in from the other end. Just had a new style fulcrum wheel where there is no way of holding the axle as you loosen/tigthen the freehub retaining nut, had to use a suspension fork/ tube clamp. Normally there is an allen key inside or a cone spanner on the outside of the axle kind of an affair.
Cone/lock nuts that hold the freehub to the axle will have backed out from underneath the freehub itself. Don't know that hub exactly but usually have to take cass off, then adjust and lock off the nut under there. Sometimes there is a nut and a lock nut (cone hub style), and other times its one nut on the end of an axle tha tyou have to put a big allen key in from the other end. Just had a new style fulcrum wheel where there is no way of holding the axle as you loosen/tigthen the freehub retaining nut, had to use a suspension fork/ tube clamp. Normally there is an allen key inside or a cone spanner on the outside of the axle kind of an affair.