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The KING-METER K5250 is an integrated handlebar display designed for e-bikes, offering a range of functions and features to enhance the riding experience.
The K5250 display provides a variety of functions and displays to meet customer's riding needs. It shows the capacity of the battery, speed (including real-time, max, and average speed), distance (single trip distance and ODO), single trip time, walk assist status, headlight status, error codes, and USB charging function. It also allows for multi-setting parameters.
The K5250 products are made of aluminum alloy material, ensuring durability and good mechanical performance. The working temperature range of the housing material is -20°C to +60°C. The display has a physical dimension of 560mm in width and 133mm in height, with a clamping diameter of Ø22.20mm and a stem diameter of 28.6mm.
The default maximum riding speed setting is 25 Km/h, but this can be adjusted from 12 Km/h to 40 Km/h. When the electric power exceeds the set value, the controller will stop the power supply to the motor to protect the rider. The display includes a USB interface that provides charging power for mobile phones with an output of 500mA. When the display is off, it can connect the data cable of the mobile phone to the display, and the mobile phone will charge. At this time, the display shows a charging icon, indicating that the phone is charging. If the display is turned off at this time, the USB interface still provides the charging function of the mobile phone. When the display is power-on state, pressing "MODE", "UP", and "DOWN" will begin charging. If in any state, you unplug the phone, the charging will be terminated automatically.
The display also features an error code system to indicate system failures. Error codes include:
Power On/Off: To power on, press the "MODE" button for 2 seconds. The display will turn on, and the controller will activate. To power off, long press the "MODE" button again. In power-off state, the display consumes less than 1 uA of leakage current. If the e-bike is not used for 10 minutes, the display will automatically turn off.
Display Interface: The K5250 LCD normal display interface shows speed (AVG/MAX), MPH/MILE/Km/h, ODO, TRIP, TIME, TO GO, and PAS level.
Speed/Single Trip Distance/ODO: After powering on, the display shows the current default speed. A short press of the "MODE" button cycles through real-time speed, average speed of the trip, maximum speed of the trip, odometer, single trip distance, single trip time, and back to real-time speed.
Walk Assist Mode: Hold the "DOWN" button for 2 seconds to enter walk assist mode. The e-bike will move at 6 Km/h, and a walk icon will appear on the display. This mode is only for pushing the e-bike and should not be used while riding.
Headlight/Backlight Control: Press and hold the "UP" button for 2 seconds to turn on the display's backlight. The controller will also be informed to turn on the headlight. Long press "UP" again to turn off the backlight.
Battery Power Display: The display shows 5 battery bars representing the battery capacity. When the battery voltage is low, the battery frame will flash, indicating that recharging is needed.
General Settings: To enter the setting menu, turn on the display by holding "MODE" for 2 seconds, then hold both "UP" and "DOWN" buttons for 2 seconds.
Single Trip Distance Clearance (CL): In the settings menu, "CL" allows you to clear the single trip distance. "N" means not cleared (default), and "Y" means cleared. Select using "UP" and "DOWN" buttons.
Metric/Imperial Unit: Parameters can be set in metric or imperial units. "UP" or "DOWN" buttons switch between KM (metric) and MPH (imperial).
Parameter Setting: Hold "UP" and "DOWN" buttons for 2 seconds to enter normal settings. Hold "DOWN" and "MODE" buttons for 2 seconds again to enter parameter setting. The password for parameter setting is 0512. Press "UP/DOWN" to change the number and "MODE" to select the digit. After 4 digits, press "MODE" to confirm and exit. Hold "MODE" to exit the setting.
Wheel Size Setting: The setting options are 16, 18, 20, 22, 24, 26, 700C, and 28. Use "UP" and "DOWN" to select the value corresponding to your e-bike's wheel diameter for accurate speed and distance display. Press "MODE" to enter speed limit setting.
Speed Limit Setting: The default maximum riding speed is 25 Km/h. This can be adjusted from 12 Km/h to 40 Km/h using "UP/DOWN" buttons. Long press "MODE" to confirm and exit.
Error Code Display: When the e-bike's electric system fails, the display automatically shows an error code. The e-bike will not be ridable until the fault is eliminated and the error code interface is cleared. Refer to Appendix 1 for error code definitions.
Warranty Information: King-Meter provides a 24-month warranty from the day the display leaves the factory for all faults arising during normal operation that are caused by a quality defect.
Items Not Covered by Warranty:
Software Version: This manual describes the operation of the general software version (version 1.0) of Tianjin King-Meter Technology Co., Ltd. The display software version used on some vehicles may differ slightly from this manual, and the actual version used shall prevail.
Preparation Before Starting: Ensure all connectors are tightened and the e-bike's power is turned on.
Troubleshooting (FAQ):
Safety Precautions:
| Brand | King-Meter |
|---|---|
| Model | K5250 |
| Category | Bicycle Accessories |
| Language | English |











