Roadrunner II 4825 16 inch Electric Bike Kit Rear

Our Price: $579.99

Availability: Usually Ships in 24 to 48 Hours

Product Code:

This 48V ebike kit is designed specifically to maximize speed and torque for those small 16 inch rear wheels. We're proud to introduce the new 1200W Rear RoadRunner II ebike kit for 16 inch wheels! Since the original RoadRunner motors were discontinued, customers with 16 inch wheels have struggled to find a quality electric bike kit with more than just the ability to assist. Whether you plan to build an electric recumbent, motorized trike, or electric folding bike with 16 inch wheels, this reliable hub motor kit will get the job done. This 48V electric bike kit can reach a comfortable 15mph on a 16 inch wheel, but the real benefit is the amount of hill climbing, trailer pulling torque this direct drive hub motor produces. Having the power to climb hills with a slight motion of your wrist offers a freedom that never gets old!

A rear hub motor might be your best choice when:
- Your bicycle does NOT have a rear coaster brake. Since the regular bicycle hub is replaced with the hub motor, the coaster brake would have to be removed.
- Front forks are NOT steel. If you front forks are not steel, there's a higher risk of damage. If unsure about the strength of your front forks, go rear wheel drive.
- Front forks are suspension. Most front suspension forks will become warn and damaged over time by the stress of such a powerful hub motor.
- Rear dropout spacing is the standard 135mm. You must have the standard 135mm rear dropout spacing to use a rear wheel drive motor.


  •       Direct drive / Gearless hub motor
    Lightweight motor works with rim brakes (not disc brake compatible)
    Small diameter motor fits 16 inch rims
    1200W of power provides great torque for hills
    Motor can be used as sensor or sensorless by disconnecting sensor plug
                    Top Speed on 16 inch rim: 15mph
Torque at 48V 25A: 44.40Nm
Voltage: 48 Volts
Rear Axle Dropout: Standard 135mm
Anderson power pole 45A connector for phase wires
Mini-XLR 5-pin plug for hall effect