BigPatents India

A front center bottom surface portion 21a is formed at the front center portion of the bottom surface portion 21 of the fuel tank 20, and at the rear portion thereof, a flat portion 21b is so formed as to be parallel to a parallel portion of the sub frame 6. The right and left side portions of the front center bottom surface portion 2la are formed with, respectively, a front left bottom surface portion 21c and a front right bottom surface portion 21d, both of which are protruding downward lower than the front center bottom surface portion 21a. The front portion of the fuel tank 20 is supported by the main frame 4 with a space A there between with respect to the upper surface of the main frame 4, and the rear end portion thereof is supported by the main frame 4 with a space B there between With respect to the upper surface of the sub frame 6.