A relay shaft is rotatably provided in a lateral direction of a vehicle body on a rear side of the vehicle body with respect to a mowing apparatus and on a front side of the vehicle body with respect to a left and right pair of rear wheel drive apparatuses. A pedal coupling rod extends in the front-rear direction of the vehicle body above the mowing apparatus and connects to a brake pedal and to the relay shaft. A left brake coupling rod extends in the front-rear direction of the vehicle body and connects to a left end of the relay shaft and to an operation portion of a left rear wheel brake. A right brake coupling rod extends in the front-rear direction of the vehicle body and connects to a right end of the relay shaft and to an operation portion of a right rear wheel brake.
