PROBLEM TO BE SOLVED: To provide a passenger reel mower capable of traveling at a relatively-slow fixed speed during mowing and traveling at a regular speed when non-mowing by simply changing over between a working speed range and a moving speed range just like a gear engagement type transmission mechanism, using a transmission mechanism by an HST.SOLUTION: In this speed setting mechanism of the passenger reel mower, a transmission mechanism of the vehicle speed of the passenger reel mower is constituted of the HST (64), and the transmission operation of the HST (64) is performed by a forward-traveling change pedal (21) and a backward-traveling change pedal (22) wherein a treading range of the forward-traveling change pedal (21) is divided into the working speed range and the moving speed range, and this speed setting mechanism includes a working speed setting pedal (66) which restrains the forward-traveling change pedal (21) from being trod to the moving speed range in lawn mowing work.
