A bicycle wheel securing structure is basically provided with a bicycle fork, an adapter and a holding member. The adapter includes a first portion defining a maximum width of the adapter and a second portion extending axially from the first portion with the second portion being disposed in a hole in an axle support portion of the a bicycle fork. The second portion has an axial bore that is at least partially threaded. The holding member is attached to the axle support portion. The holding member is selectively movable between a retaining position to prevent rotation of the adapter with respect to the bicycle fork and a releasing position to permit rotation of the adapter with respect to the bicycle fork. The holding member remains attached to the axle support portion in both of the retaining and releasing positions.