STRADDLED VEHICLE AND METHOD FOR ASSEMBLING THE SAME

A straddled vehicle is provided whose rear wheel can easily be replaced with a rear wheel of a different width than that of the rear wheel. The straddled vehicle includes a first bracket plate (31) and a second bracket plate (32) provided on a left seat frame (13L), and a collar (35) placed between the first bracket plate (31) and the second bracket plate (32). The collar (35) includes a first cylindrical portion (35a), and a second cylindrical portion (35b) having a diameter greater than that of the first cylindrical portion (35a). An upper support portion (8A) of a rear cushion unit (8) is supported on the first cylindrical portion (35a) of the collar (35). The orientation of the collar (35) can be changed. When the first cylindrical portion (35a) is located outward of the second cylindrical portion (35b) in a vehicle width direction, the first cylindrical portion (35a) is located on a vertical line (13V) that passes through a center (13Lc) of the left seat frame (13L) in a vertical cross section that includes a center line (35c) of the collar (35).