| 摘要 |
PROBLEM TO BE SOLVED: To provide a motorcycle in which a space below a seat frame can be effectively utilized while maintaining high rigidity. SOLUTION: The motorcycle 1 has a motorcycle body frame 2. The motorcycle body frame 2 comprises a head pipe 34 to support a front wheel 5 via a front fork 3 in a steerable manner, a main frame 16 extending backward and downward of the head pipe 34 in the diagonal direction, a seat frame 35 extending backward of an upper part of the main frame 16, a step plate 36 extending backward of a lower part of the main frame 16, and a rear frame 37 to connect the seat frame 16 to the step plate 36, and a space formed of the main frame 16, the seat frame 35, the step plate 36 and the rear plate 37 is substantially rectangular in side view.
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