Introduction
The VDO M1.1 WL Digital Bicycle Computer is a reliable and user-friendly device designed to provide essential cycling data. Its minimalist design ensures ease of use, while its clear display keeps two key functions visible at all times. This manual provides detailed instructions for installation, operation, and maintenance of your VDO M1.1 computer.
Package Contents
Please ensure all the following components are present in your package:
- VDO M1.1 Bicycle Computer Unit
- Bicycle Mounting Kit (includes bracket, sensor, magnet, and zip ties)
- 3V Battery (CR2032)
- User Manual
Setup and Installation
Follow these steps to properly install your VDO M1.1 Bicycle Computer:
- Battery Installation: Open the battery compartment on the back of the computer unit. Insert the included 3V CR2032 battery with the positive (+) side facing up. Close the compartment securely.
- Mounting Bracket: Attach the mounting bracket to your bicycle's handlebar or stem using the provided zip ties. Ensure it is securely fastened and positioned for easy viewing.
- Sensor Installation: Mount the speed sensor to the front fork of your bicycle. Position it so that the sensor head is aligned with the spokes.
- Magnet Installation: Attach the spoke magnet to one of the spokes on your front wheel. Adjust its position so that it passes within 5mm of the speed sensor head with each wheel rotation. Ensure the magnet and sensor are aligned.
- Cable Routing: Route the sensor cable along the fork and frame, securing it with zip ties to prevent it from interfering with moving parts or getting snagged. Connect the cable to the computer mounting bracket.
- Computer Attachment: Slide the VDO M1.1 computer unit onto the mounting bracket until it clicks into place.
- Wheel Size Setting: It is crucial to set the correct wheel size for accurate speed and distance readings. Refer to the 'Settings Mode' section to input your wheel's circumference. You can measure your wheel's circumference manually for the most accurate result.

Image: The VDO M1.1 WL Digital Bicycle Computer showing a speed of 15.6 km/h and a trip time of 2 hours, 18 minutes, and 48 seconds. The display is clear with large digits, and the VDO logo is visible at the top.
Operating Instructions
The VDO M1.1 features two primary buttons for operation and settings:
- BIKE Button:
- In Operating Mode: Press to cycle through different functions (e.g., trip time, daily distance, total distance). Press and hold to reset trip-specific data (e.g., daily distance, trip time).
- In Setting Mode: Use to browse through the setting menu options and to change the data value that is currently being set.
- SET Button:
- In Operating Mode: Press to return to the main speed display from any other function. Press and hold to enter the setting mode.
- In Setting Mode: Use to open a setting option or to confirm your selected setting.
The computer features an automatic start/stop function that activates after 2 hours of inactivity. Data is stored even when the battery is changed.
Functions
The VDO M1.1 provides the following essential cycling functions:
- Current Speed (displayed in 0.2 km/h increments)
- Trip Time
- Daily Distance
- Total Distance
- Time (12/24-hour mode with AM/PM display)
Additional features include:
- Very large, easy-to-read fonts
- Two functions visible simultaneously on the display
- Full text display (English language supported)
- Data storage upon battery change (retains data and settings)
- Low battery status warning
- One adjustable wheel size setting
- Automatic start/stop function (up to 2 hours of inactivity)
Maintenance
To ensure the longevity and optimal performance of your VDO M1.1 Bicycle Computer, follow these maintenance guidelines:
- Cleaning: Wipe the computer unit and sensor with a soft, damp cloth. Do not use abrasive cleaners or solvents, as they may damage the display or casing.
- Battery Replacement: When the low battery warning appears, replace the 3V CR2032 battery promptly. The computer is designed to retain your data and settings during battery changes.
- Storage: If storing the bicycle for an extended period, consider removing the computer unit to protect it from extreme temperatures or moisture.
- Sensor/Magnet Alignment: Periodically check the alignment of the speed sensor and spoke magnet to ensure they are still within the recommended 5mm distance for accurate readings.
Troubleshooting
If you encounter issues with your VDO M1.1, refer to the following common problems and solutions:
- No Speed Reading / Inaccurate Readings:
- Check the alignment and distance between the speed sensor and the spoke magnet. They should be within 5mm.
- Ensure the sensor cable is securely connected to the mounting bracket and is not damaged.
- Verify that the wheel size setting is correct in the computer's settings.
- Display Not Working / Faint Display:
- Check the battery. If the low battery warning is active or the display is faint, replace the 3V CR2032 battery.
- Ensure the battery is inserted correctly with the positive (+) side facing up.
- Computer Not Responding to Buttons:
- Remove and reinsert the battery to perform a soft reset.
- Ensure the buttons are not stuck or obstructed.
If problems persist, please contact VDO customer support or your retailer for further assistance.
Specifications
| Feature | Specification |
|---|---|
| Model | M1.1 |
| Color | Multicolored (Black/Red) |
| Display Type | LCD |
| Material Type | Plastic |
| Connectivity Technology | Wired |
| Sensor Type | Speed Sensor |
| Mounting Type | Handlebar Mounting |
| Human Interface Input | Buttons |
| Battery Type | 1 x CR2032 Lithium-metal (included) |
| Product Dimensions | 4.6 x 3.8 x 1.6 cm |
| Item Weight | 28 Grams |
Warranty and Support
For warranty information, please refer to the warranty card included with your product or consult the retailer from whom you purchased the VDO M1.1. VDO stands behind the quality of its products.
For technical support, troubleshooting assistance, or inquiries about replacement parts, please visit the official VDO website or contact their customer service department. Keep your purchase receipt as proof of purchase for any warranty claims.





