Patent ID: 8499878

Claim:
A motorcycle rear portion structure, comprising: a chassis frame having a pair of seat rails on a left and right and a rear-end frame portion that joins a rear end of the pair of seat rails; a rear wheel disposed below a rear portion of the chassis frame; a fender main body that is fixed to the rear portion of the chassis frame and is disposed above the rear wheel; a fender hanging portion that is configured to be separate from the fender main body and covers at least part of the rear wheel from behind; a support stay that is fixed to a the rear-end frame portion, extends substantially horizontally from the rear-end frame portion rearwards, and supports the fender hanging portion; and an under cover that covers the support stay from below, wherein, among the fender main body and the fender hanging portion, only the fender hanging portion is fixed to the support stay, and wherein the under cover is provided between the fender main body and the fender hanging portion.