The 300X electric scooter thumb throttle is a Hall-type throttle for electric scooters and electric bikes. It combines ergonomic thumb operation with an SM Plug connector and fits 22 mm handlebars. Supported vehicle system voltages are 24V, 36V, 48V, 60V and 72V. Before ordering “300X thumb throttle with SM Plug”, confirm the manufacturer’s stated technical specifications and applicable local riding requirements.
300X electric scooter thumb throttle – fitting and operation
The open construction allows the throttle to be fitted without removing the handlebar grip, making installation quick and straightforward. A non-slip inner rubber insert sits inside the mount. Left- or right-hand handlebar fitting depends on the selected model, so check the mounting side before ordering.
The black PC+ABS plastic construction offers resistance to impacts and everyday use. Thumb operation provides a comfortable way to control speed, with a control angle of 0–70°.
Electrical and mounting specifications
- Model: 300X
- Type: Hall-type thumb throttle
- Operating voltage: 5 V
- Compatible vehicle systems: 24V / 36V / 48V / 60V / 72V
- Output voltage: 0.8–4.2 V
- Control angle: 0–70°
- Connector: SM Plug
- Number of wires: 3
- Ingress protection rating: IPX5
- Material: PC+ABS plastic
- Colour: black
- Handlebar diameter: 22 mm
The throttle’s 5 V operating voltage is distinct from the supported vehicle system voltages. Check both the electrical requirements and the physical connection when choosing a replacement.
Check compatibility before ordering
This throttle is intended for electric scooters and electric bikes using a Hall-type throttle. Compare the connector type, contact count and appearance with your existing throttle before purchasing. Also confirm the handlebar diameter and the required mounting side rather than relying on system voltage alone.
Package contents
- 1 × 300X thumb throttle
- Connection cable with SM Plug connector


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