We claim the ornamental design for a motorcycle wheel spoke arrangement, as shown and described.
FIG. 1 is a perspective view of a motorcycle wheel spoke arrangement; and,
FIG. 2 is a reduced front view of the design shown in FIG. 1.
The broken line showing of the environment is for illustrative purposes only and forms no part of the claimed design. The broken lines which define the boundaries of the claimed design from no part thereof.