Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Niiyen 48V Electric Bike Throttle Grip. Please read this manual thoroughly before installation and use to ensure proper function and safety.

Image Description: A complete set of the Niiyen 48V Electric Bike Throttle Grip components, including the main throttle unit with integrated display and buttons, two rubber handlebar grips, and an end cap. Wires with an SM connector are visible extending from the throttle unit.
Safety Information
- Ensure the electric bike's power is off before attempting any installation or maintenance.
- Verify voltage compatibility (48V) with your electric bike system before installation.
- If you are unsure about any installation steps, consult a qualified technician.
- Keep all electrical connections dry and secure.
Package Contents
The package includes the following items:
- 1 x Throttle Grip (main unit with display and buttons)
- 2 x Handlebar Grips (rubber)
- 1 x Accessory (likely an end cap or small part)
- 1 x Direction (referring to this instruction manual)

Image Description: An overhead view of all components included with the Niiyen throttle grip. This includes the main throttle unit with wiring, two rubber handlebar grips, and a small end cap, all laid out on a white surface.
Setup and Installation
1. Handlebar Grip Installation
- Carefully remove your existing handlebar grips.
- Slide the new rubber handlebar grips onto the handlebars. Ensure a snug fit.
- Install the throttle grip unit on the appropriate side of the handlebar (typically the right side for throttle control). Secure it firmly.
- Attach the end cap to the open end of the handlebar, if applicable.

Image Description: A close-up view of one of the black rubber handlebar grips, showing its textured surface designed for comfortable and secure handling.

Image Description: A close-up view of the black plastic end cap, which is used to seal the end of the handlebar after grip installation.
2. Electrical Wiring (SM Interface)
This throttle grip uses an SM interface for connection. Ensure your electric bike controller has a compatible SM connector. The wiring connections are as follows:
- Green Line: Hall signal line. Connects to the Hall sensor input on your controller.
- Red Line: Positive 5V power supply. Connects to the 5V output from your controller.
- Black Line: Negative pole (ground). Connects to the ground on your controller.
- Blue Line: Connects to the controller's electric door lock output line.
- Yellow Line: Connects to the positive power pole of the controller switch (power switch), controlling the power supply of the bike.

Image Description: A visual representation of the wiring connections for the Niiyen throttle grip. Text labels indicate the function of each colored wire (Green: Hall Signal, Red: Positive 5V, Black: Negative Pole, Blue: Controller Electric Door Lock Outlet, Yellow: Controller Power Switch Positive). The throttle unit with its SM connector is shown on the right.
Compatibility Note: This throttle grip is specifically designed for 48V electric bike systems. It is compatible with various battery types, including lead-acid, lithium, water, and dry batteries, provided the overall system voltage is 48V.

Image Description: The Niiyen throttle grip components are displayed alongside text indicating compatibility with "all kinds of batteries" (lead acid, lithium, water, dry battery). An electric bike is shown in the background, illustrating the product's application.
Operating Instructions
1. Power Display
The throttle grip features an integrated power display to indicate the remaining battery charge. This allows you to monitor your electric bike's power level accurately during rides.

Image Description: The Niiyen throttle grip is shown with its integrated power display. Text highlights the "Power display" feature, its ability to show remaining power, suitability for 48V e-bikes, and the inclusion of a cruise function. An electric bike is visible in the background.
2. Throttle Control
Twist the throttle grip to control the speed of your electric bike. The Hall sensor provides precise and responsive acceleration.
3. Cruising Function
This throttle grip includes a cruising function. Refer to your electric bike's controller manual for specific instructions on how to activate and deactivate the cruising mode, as this function is typically managed by the controller in conjunction with the throttle's signal.
Maintenance
- Regularly inspect all wiring connections for signs of wear or damage.
- Keep the throttle grip clean and free from dirt and debris. Use a soft, damp cloth for cleaning.
- Avoid exposing the throttle grip to excessive moisture or extreme temperatures.
Troubleshooting
If you encounter issues with your throttle grip, consider the following:
- No Power/Display Off: Check all wiring connections, especially the yellow line for the power switch and the red/black lines for 5V power. Ensure the bike's main power is on.
- No Acceleration: Verify the green Hall signal line connection. Ensure the throttle is properly installed and not obstructed. Check for any error codes on your electric bike's main display (if applicable).
- Inconsistent Speed: Inspect the Hall signal line for damage or loose connections. Ensure the throttle mechanism moves smoothly without sticking.
For persistent issues, consult a professional electric bike technician.
Specifications
| Feature | Detail |
|---|---|
| Item Type | Throttle Grip |
| Brand | Niiyen |
| Model Number | Niiyenv0xf7g9por |
| Material | ABS |
| Weight | Approx. 331g (11.68oz) |
| Applicable Voltage | 48V |
| Interface Type | SM Interface |
| Features | Hall Sensor, Speed Control, Power Display, Cruising Function |
Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Niiyen customer service through the retailer where the product was purchased.