| 摘要 |
PROBLEM TO BE SOLVED: To provide a frame structure in a motorcycle constituted to enhance vertical angle rigidity (rigidity of a vehicle body frame in a direction orthogonal to a road surface) of a head pipe, while avoiding a weight increase in the vehicle body frame. SOLUTION: In this motorcycle, a front end part of a swing arm for supporting rear wheels is oscillatably supported in a rear part of a main frame extending backward from the head pipe for supporting a front fork to be steered, and an engine main body 34 is supported on a pair of left and right frame members for an engine mount extending rear downward from the head pipe on a lower side of the main frame and the main frame. A rigid member 96 is provided between the head pipe 22 and a front surface substantial center part of the engine body 34. COPYRIGHT: (C)2006,JPO&NCIPI
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