| 摘要 |
PROBLEM TO BE SOLVED: To easily install a rear frame 25 onto a front frame 23. SOLUTION: This car body frame is provided with a front frame 23 having a tank rail 21 and a rear arm bracket 22, and a rear frame 25 detachably installed on a rear end part of the front frame 23. A connection part between the front frame 23 and the rear frame 25 comprises an engagement recess 51 formed in the front frame 23, and an engagement protrusion 52 on the rear frame 25 to be engaged with the engagement recess 51. By engaging the engagement protrusion 52 with the engagement recess 51, a front end part of the rear frame 25 is supported by the front frame 23.
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