1. Product Overview
The BELL SpinFit Calorie Bike Speedometer is designed to track your cycling performance, including speed and calories burned. It features an extra-large, easy-to-read two-color display for clear visibility during your rides.
Key Features:
- Measures current speed, average speed, and maximum speed.
- Calculates calories burned during your ride.
- Tracks distance, timer, and total odometer.
- Includes a clock function.
- Features current-to-average speed comparison.
- Automatic start/stop functionality.
- Offers basic and advanced display modes.
- Supports US (miles) or Metric (kilometers) units.
- Battery indicator for power status.
- Quick trip reset function.
- Tool-free handlebar mount for easy installation.

Figure 1.1: The Bell SpinFit Calorie Bike Speedometer. This image shows the speedometer unit attached to a bicycle handlebar, displaying its large, two-color screen.
2. Setup and Installation
Follow these steps to properly install your BELL SpinFit Calorie Bike Speedometer.
2.1 Package Contents
- Speedometer Unit
- Handlebar Mount
- Wheel Magnet
- Sensor Unit (wired)
- Batteries (pre-installed or separate)
- Cable Ties for securing the sensor wire
2.2 Battery Installation
The speedometer requires one Alkaline battery. If not pre-installed, open the battery compartment on the back of the unit, insert the battery with the correct polarity, and close the compartment securely.
2.3 Handlebar Mount Installation
- Position the handlebar mount on your bicycle's handlebar.
- Secure the mount using the integrated strap or clamp mechanism. No tools are required for this step.
- Ensure the mount is stable and does not rotate freely.
2.4 Sensor and Magnet Installation
- Attach the sensor unit to the front fork of your bicycle using the provided cable ties. Position it so that the sensor head is aligned with the spokes.
- Attach the wheel magnet to a spoke on your front wheel.
- Adjust the position of the sensor and magnet so that they are approximately 2-5 mm apart when the wheel rotates. The magnet should pass directly in front of the sensor head.
- Route the sensor wire along the fork and up to the handlebar mount, securing it with cable ties to prevent it from interfering with moving parts.
- Plug the sensor wire into the designated port on the handlebar mount.
Important: Proper spacing between the sensor and magnet is crucial for accurate readings. Test by spinning the wheel to ensure the speedometer registers movement.
3. Operating Instructions
The BELL SpinFit speedometer features multiple functions accessible via its buttons. Refer to the display for current readings and settings.
3.1 Initial Setup and Wheel Size
Upon first use or after battery replacement, you may need to set the wheel circumference. This is essential for accurate speed and distance measurements. Consult the specific instructions provided with your unit for entering the correct wheel size (in mm or inches) based on your tire dimensions.
3.2 Function Overview
The speedometer cycles through various functions. Use the primary button (usually on the front or bottom) to switch between modes.
- Speed: Displays current riding speed.
- Calories Burned: Estimates calories expended during the current ride.
- Distance: Shows the distance covered in the current trip.
- Timer: Records the duration of the current ride.
- Odometer: Displays total accumulated distance.
- Average Speed: Shows the average speed for the current trip.
- Max Speed: Records the highest speed achieved during the current trip.
- Clock: Displays the current time (12-hour or 24-hour format).
- Current-to-Average Speed Comparison: An arrow indicator shows if your current speed is above or below your average speed.
- Auto Start/Stop: The unit automatically begins recording when movement is detected and pauses when stationary.
- Basic/Advanced Display: Allows switching between simplified and detailed data views.
- US or Metric Units: Select between miles/mph or kilometers/km/h.
- Battery Indicator: Shows remaining battery life.
- Quick Trip Reset: Resets current trip data (distance, timer, average/max speed, calories) without affecting the odometer.
3.3 Setting the Clock and Units
Typically, a secondary button or a long press on the primary button will allow you to enter settings mode. From here, you can adjust the clock, select US or Metric units, and configure other preferences. Follow the on-screen prompts.
3.4 Resetting Trip Data
To clear data for a new ride, use the "Quick Trip Reset" function. This usually involves a specific button press combination or a long press on a designated button while in a trip-related display mode.
4. Maintenance
Proper maintenance ensures the longevity and accuracy of your speedometer.
4.1 Battery Replacement
When the battery indicator shows low power, replace the Alkaline battery promptly. Open the battery compartment on the back of the unit, remove the old battery, insert a new one with correct polarity, and secure the cover. Dispose of old batteries responsibly.
4.2 Cleaning
Wipe the speedometer unit with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these can damage the display or casing. Ensure the unit is dry before use.
4.3 Storage
If storing the speedometer for an extended period, it is recommended to remove the battery to prevent leakage and potential damage to the unit.
5. Troubleshooting
If you encounter issues with your speedometer, try the following solutions:
5.1 Speedometer Not Displaying Readings
- Check Battery: Ensure the battery is correctly installed and has sufficient charge. Replace if necessary.
- Sensor/Magnet Alignment: Verify that the wheel magnet passes within 2-5 mm of the sensor head. Adjust their positions if needed.
- Sensor Connection: Ensure the sensor wire is securely plugged into the handlebar mount.
- Wheel Circumference: Confirm that the correct wheel circumference is set in the speedometer's settings. Incorrect settings can lead to inaccurate or no readings.
5.2 Inaccurate Readings
- Wheel Circumference: Double-check the wheel circumference setting. An incorrect value will result in inaccurate speed and distance.
- Magnet Position: Ensure the magnet is firmly attached to the spoke and does not shift during rides.
- Interference: Strong electromagnetic fields from other devices might interfere with the signal. Try to isolate the speedometer from such sources.
5.3 Display Issues (Gibberish, Blank Screen)
- Battery: A low or depleted battery can cause display anomalies. Replace the battery.
- Reset: Some units have a small reset button (often requiring a pin to press). Refer to your specific model's instructions for a hard reset.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | BELL |
| Model Number | 109426 |
| Item Weight | 0.01 Ounces (approximately 0.28 grams) |
| Sensor Type | Speed Sensor (Wired) |
| Battery Type | Alkaline |
| Mounting Type | Handlebar Mount |
| Human Interface Input | Buttons |
| UPC | 035011000961 |
7. Warranty and Support
For warranty information or technical support regarding your BELL SpinFit Calorie Bike Speedometer, please contact BELL customer service directly. Refer to the product packaging or the official BELL website for the most current contact details and warranty terms.
Manufacturer: BELL
Website: www.bellsports.com (Note: This is a general placeholder link, please refer to official product documentation for exact support channels.)