500 W 24V kit Speed Control Box w Reverse, Thumb throttle & Key f electric motor

Regular price $39.99

Shipping calculated at checkout.

500 Watt 24 Volt SPEED CONTROLLER WITH Reverse Function
Thumb Throttle
Key Lock Switch (use for reverse function or to turn on/off controller)

Brand new with warranty.

Control box and throttle can be used for mini bike quad and Go-Kart. Reverse function makes it very practical. Great for do it yourself enthusiasts. Wiring diagrams included when shipping.

Control box (speed controller) specs:
Dimension: aprox 3.25" x 2.5" x 1.5"
Weight: 9 OZ
Brand: Yiyun
Model: YK31

This speed controller features connection terminals for: 
- Battery
- Motor
- Charger
- Lock / on-off switch - Connect to throttle's switch or to any switch to turn on the controller
- Reverse Switch - Connect to throttle switch or any switch. When switch is activated, motor will reverse direction.
- Brake (will shut off motor)
- Battery charge indicator
- Tail lamp

- Throttle

Throttle Specifications

INCLUDED: 1 Throttle, 2 extra grip.

Thumb Electric Scooter Bike Throttle Grip 5 Wire



- Brand new

Electric Bike scooter Thumb throttle accelerator

Compatible with our controller.

Fits standard 7/8 inches (22.2mm)  handle bars

Cable length is approximately 30 inches

- Includes 3 parts: Throttle and 2 extra grips

Wiring instructions:





connects to


Voltage 5 to 0 Volts


connects to

Black or Yellow



connects to

Green, Blue or White

Speed Adjusting Signal (0 to 5 Volts)


We also sell other electric scooter parts and mini Bikes 

Most orders ship same day from our warehouse 

Warranty: 12 Months from purchase date. We will only replace motors that do not work out of the box.  We test all motors before shipping. We will not replace burnt out motors.