This is the Mercane WideWheel.

Motor Power: Variable: 48V 500W
Top Speed: 18-22 Mph*
Range: 22-24 miles (with optimal settings)*
Gradeability: 15-20°*
Max Load: 220 Pounds
Tire Size [type]: 8.5”x3.9” (f/r) [solid] Battery Capacity: 48V 8.8Ah
Charging Time: 6-8h (one)*
Display: Smart LCD
Brakes: Rear Disc Brake
Suspension: Spring (f/r)
Frame Material: Aluminum Alloy 6061
Folding: Yes
Color Scheme: Black & Grey
Lighting: Head Lamp
Signaling/Horn: Rear Brake Light/Bell

*Manufacturer Suggested