• 48V 1000W brushless DC differential motor
• Voltage(V): 48V
• Output Power:1000W
• Commutation: Brushless
• Speed(RPM): 4800rpm
• Rated current:18-35A
• Gear Ratio: 9.5:1     Torque:  2.62Nm
• High Speed : 20mph / Medium Speed : 16mph /  Low Speed: 10mph
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• 30" / 34" / 40" Differential  Rear Axle Drive Shaft kit
• Axle Length: 30 inch (760mm) / 34 inch (860mm) / 40inch(1020mm)
• Comes with pair axles

Here is the instruction video: https://youtu.be/RoZE1SYAxHo