A lawnmower includes a chassis with a rear portion provided with rear wheels having a stationary axis of rotation (R) and a front portion provided with at least one pivoting front wheel, a motorised cutting unit rigidly connected to the chassis, and a handlebar. The handlebar is mounted on at least one rear rigid extension of the rear portion of the chassis, hinged about a hinging axis (G) parallel to the axis of rotation of the rear wheels between at least one operating position and a maintenance position in which the handlebar is folded towards the front portion of the chassis, and the front portion of the chassis is provided with a lock for locking the handlebar in the maintenance position.
