eBay

Package only includes Axle + Motor, if you need speed controller , brake caliper, or other items, please check item# 275048994368
Brand New

16 tooth Drive axle

48v 500w motor: 3000rpm rated current: 15ah, max discharging time : 160mins High Speed: 13mph , Medium Speed: 10mph , Low Speed: 8mph ( under the load of 143lbs, and the weight of the bike is 154lbs)

Gear Ratio: 9.5:1 Torque: 1.8Nm

The 48v 1000w motor : 4800rpm rated current: 18-35ah, max discharging time : 140mins High Speed : 20mph , Medium Speed : 16mph , Low Speed: 10mph ( under the load of 198lbs, and the weight of the bike is 154lbs)
Gear Ratio: 9.5:1 Torque: 2.62Nm

What are the advantages of differential?

The differential allows wheels on the same axle to rotate at different speeds. When your vehicle goes around a corner the wheel on the outside has to travel faster than the wheel on the inside. The differential allows this to happen. Two wheel drive vehicles have one axle and four wheel drive vehicles have two.