... certification 2)15.0 B&S engine,52" width 1)Engine: Briggs&Stratton 12.50hp,250cc,originally ... Size: Front Wheel: 10",Rear Wheel: 15"; 8)Changable speed: 5grades for advancing, 1grade for countermarching, ... 1grade for braking;9)Marching Speed: 0.8~5 miles/h; Reversing Speed: no more than ... Gross Weight: 160kg/180kg CE approved B&S engine riding Lawn Mower Tractor/ Riding lawn mower/ Ride ...