Motorcycle

1. A motorcycle comprising a detachable pannier, wherein

a rear surface of the pannier includes a first inclined surface extending downward from an upper end so as to be inclined rearward, and a second inclined surface extending downward from a lower end of the first inclined surface so as to be inclined rearward at an angle greater than the first inclined surface, and is formed in a V shape opened rearward in a side view by both of the first and second inclined surfaces, whereby

a light distribution requirement that a tail lamp and a turn indicator can be seen from a rear side, is met in a state where the pannier is mounted.

2. The motorcycle as claimed in claim 1 , wherein

the pannier is supported by a motorcycle frame structure via a grab rail to be held by a passenger, and

at least a portion of an inner end, in a motorcycle widthwise direction, of the pannier is located inward of the grab rail.

3. The motorcycle as claimed in claim 2 , wherein an outer end, in the motorcycle widthwise direction, of the pannier is located inward of an outer end, in the motorcycle widthwise direction, of a rear-view mirror.

4. The motorcycle as claimed in claim 1 , wherein a reinforcement portion for preventing deformation is provided at an inside of a base portion of the V shape in the pannier.

5. The motorcycle as claimed in claim 1 , wherein an angle α of the V shape formed by the first inclined surface and the second inclined surface is set within the range of 130° to 170°.

6. The motorcycle as claimed in claim 5 , wherein a first inclination angle β1 of the first inclined surface relative to a vertical direction is set within the range of 10° to 30°, and a second inclination angle β2 of the second inclined surface relative to the vertical direction is set within the range of 40° to 65°.