Fydun Mechanical Bicycle Speedometer Odometer Cyclocomputer Instruction Manual

1. Introducció

This manual provides essential information for the installation, operation, and maintenance of your Fydun Mechanical Bicycle Speedometer Odometer Cyclocomputer. This device is designed to accurately measure your cycling speed and distance traveled without the need for batteries or complex electronic setups. It is constructed from durable aluminum alloy for reliable performance.

Si us plau, llegiu aquest manual detingudament abans de la instal·lació i l'ús per garantir el funcionament correcte i la longevitat del vostre producte.

2. Informació de seguretat

• Ensure all components are securely fastened before riding. Loose parts can interfere with bicycle operation and cause accidents.
• Do not attempt to adjust the speedometer while riding. Always stop in a safe location if adjustments are needed.
• Keep the speedometer and its components away from extreme temperatures and direct sunlight for prolonged periods to prevent damage.
• This device is designed for 26, 27.5, 28, and 29-inch bicycle wheels only. Using it on incompatible wheel sizes may result in inaccurate readings or damage.

3. Contingut del paquet

Verifiqueu que tots els elements següents estiguin inclosos al vostre paquet:

• 1 x Mechanical Speedometer Unit
• 1 x Speedometer Cable
• 1 x Wheel Sensor/Gear Drive Unit
• 1 x Handlebar Mounting Bracket

Figura 3.1: Acabatview of the Fydun Mechanical Bicycle Speedometer Odometer Cyclocomputer and its main components, including the speedometer head, cable, and wheel sensor.

4. Configuració i instal·lació

Follow these steps to properly install your mechanical bicycle speedometer:

1. Mount the Speedometer Unit: Attach the handlebar mounting bracket to your bicycle's handlebar. Position the speedometer unit securely into the bracket, ensuring it is visible and does not obstruct your view or controls. Tighten any screws or clamps fermament.


Figura 4.1: The speedometer unit securely mounted on a bicycle handlebar, showing its position relative to other controls. This unit is compatible with 26, 27.5, 28, and 29-inch bike wheels.

2. Install the Wheel Sensor/Gear Drive Unit: The wheel sensor, also known as the gear drive unit, attaches to the front wheel axle. Ensure that your bicycle has a quick-release lever or sufficient clearance at the front wheel for proper installation. The sensor engages with the wheel's rotation to drive the speedometer cable.

Figura 4.2: The complete assembly showing the speedometer head, the coiled cable, and the wheel sensor unit, ready for installation.
3. Connect the Speedometer Cable: Route the speedometer cable from the wheel sensor up to the speedometer unit on the handlebar. Ensure the cable is not kinked, pinched, or interfering with any moving parts of the bicycle (e.g., brakes, gears). Connect one end of the cable to the wheel sensor and the other end to the input port on the back of the speedometer unit.


Figura 4.3: Un costat view of the speedometer mounted on a bicycle, illustrating how the cable connects from the wheel sensor (not fully visible) to the bottom of the speedometer unit.

4. Verificar la compatibilitat: This speedometer is compatible with 26, 27.5, 28, and 29-inch bicycle wheels. Before permanent installation, confirm your wheel size to ensure accurate readings.

5. Instruccions de funcionament

The Fydun Mechanical Bicycle Speedometer operates purely mechanically, requiring no batteries or electronic configuration. Once installed, it will automatically display speed and accumulate distance as you ride.

• Speed Reading: The main needle on the dial indicates your current speed in kilometers per hour (km/h). The scale typically ranges from 0 to 60 km/h.
• Odometer Reading: The numerical display at the bottom of the dial tracks the total distance traveled by your bicycle in kilometers. This is a cumulative reading and cannot be reset.
• RPM (Revolucions per minut): Some models may also feature an RPM scale, which is typically related to the wheel's rotation speed.

Figura 5.1: Un detallat view of the speedometer's analog dial, showing the speed scale (km/h), the odometer display, and the RPM indicator.

6. Manteniment

Proper maintenance ensures the longevity and accuracy of your speedometer.

• Neteja: Wipe the speedometer unit and cable with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners, which can damage the display or finish.
• Inspecció del cable: Periodically check the speedometer cable for any signs of wear, fraying, or damage. Ensure it remains securely connected at both ends.
• Inspecció del sensor: Inspect the wheel sensor for any debris or damage that might impede its function. Ensure it is properly aligned with the wheel.
• Emmagatzematge: If storing your bicycle for an extended period, ensure the speedometer is clean and dry. Store in a cool, dry place away from direct sunlight.

7. Solució De Problemes

Si teniu problemes amb el velocímetre, consulteu els següents problemes i solucions habituals:

• Inaccurate Speed/Odometer Readings:
  • Verify that the speedometer is installed on a compatible wheel size (26/27.5/28/29 inches).
  • Check that the wheel sensor is correctly installed and engaging with the wheel.
  • Ensure the speedometer cable is securely connected at both the sensor and the speedometer unit.
• Speedometer Not Functioning:
  • Inspect the speedometer cable for any breaks or severe kinks. A damaged cable will prevent operation.
  • Ensure the wheel sensor is properly seated and rotating with the wheel.
  • Check for any obstructions preventing the internal mechanism from moving freely.
• Noise from Speedometer:
  • Ensure all mounting hardware is tight and secure.
  • Check that the cable is not rubbing against any part of the bicycle frame or components.

8. Especificacions

Detailed specifications for the Fydun Mechanical Bicycle Speedometer Odometer Cyclocomputer:

Figura 8.1: The speedometer unit, emphasizing its durable aluminum alloy construction.