Specification    
Model: KD-ES31    
Max speed: 30km/h    
Distance per charge:80-100km    
Vehicle weight: 81kg    
Load: 75kg    
Gradeability: >7 degrees    
Rated power: 350w    
Rated torque: 9.6N.m    
Motor type: brushless,16"    
Battery: 48V/20Ah,lead acid    
Brake: front/rear big drum brake    
Light: 56V    
Over current: 18A + 1A    
Low voltage: 42V+0.5V    
Vehicle size: 1560x 680x 1080mm    
Wheelbase: 1120mm