A tractor includes a ROPS frame having right and left leg portions connected to either a transmission case or rear axle cases, a front frame connected to a portion of the transmission case forwardly of the ROPS frame and extending in the right/left direction, a right attaching frame connected to and between the right leg portion of the ROPS frame and a right side portion of the front frame and extending in the fore/aft direction, a left attaching frame connected to and between the left leg portion of the ROPS frame and a left side portion of the front frame and extending in the fore/aft direction, and right and left fenders. The right fender is attached to the right attaching frame and the left fender is attached to the left attaching frame.