The design is features of shape, configuration, pattern and ornamentation of the motorcycle as shown in the drawings.Drawings of the design are included wherein:Figure 1 is a perspective view from the left side of a motorcycle;Figure 2 is a perspective view from the left side thereof;Figure 3 is a perspective view from the right side thereof;Figure 4 is a perspective view from the right side thereof;Figure 5 is a front elevation view thereof;Figure 6 is a rear elevation view thereof;Figure 7 is a top plan view thereof;Figure 8 is a bottom plan view thereof;Figure 9 is a left side elevation view thereof;Figure 10 is a right side elevation view thereof.