1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Bikevee BKV-501 USB-C Wireless Bicycle Computer. Please read thoroughly to ensure optimal performance and longevity of your device.
Figure 1: Bikevee BKV-501 Wireless Bicycle Computer
2. Safety Information
- Always pay attention to the road and traffic while riding.
- Do not submerge the device in water. It is water-resistant, not waterproof for submersion.
- Do not clean with water or aggressive cleaners. Use a soft, damp cloth.
- Do not disassemble or otherwise modify the computer, battery, and accessories.
- Dispose of the computer and battery ecologically according to valid regulations.
- Always follow applicable traffic laws in the country where you use the product.
3. Package Contents
Verify that all items are present in your package:
- Wireless Bicycle Computer
- Wireless Transmitter
- Standard Base (for handlebar/stem mounting)
- Magnet
- Type-C Charging Cable
- Rubber Rings (for bracket installation)
- Tie Straps (for sensor installation)
- Rubber Pad
- Instruction Manual (this document)
Figure 2: Package Contents
4. Setup
4.1. Battery Installation (Sensor)
- Insert a coin into the gap of the sensor's battery cover.
- Counterclockwise rotate the cover to open it.
- Mount the CR2032 battery with the anode (+) side facing up, towards the battery cover.
- Close and tighten the battery cover.
4.2. Bracket Installation
- Fix the bracket on your handlebar using the included rubber ring.
- Ensure proper function and position.
- If attaching to the stem, change the direction of the bracket as shown in the diagram.
- Add a rubber pad under the bracket for a secure fit.
4.3. Sensor and Magnet Installation
- Open the battery cover of the sensor and remove the white plastic sheet beneath the battery.
- Put the battery into the sensor with the plus sign facing up and tighten the battery cover.
- Use the plastic straps in the accessory kit to secure the sensor to the front fork.
- Install the magnet on the spokes of the front wheel. The magnet needs to face the text on the sensor.
- Adjust the position of the magnet and the sensor so that the distance between them is less than 5mm.
- Install the base onto the handlebar of the bicycle, then install the bicycle computer. The height between the bicycle computer and the sensor is less than 70 cm.
Figure 3: Sensor and Magnet Installation Diagram
Figure 4: Step-by-step Installation Guide
Important Notes for Sensor and Magnet:
- The distance between the transmitter (sensor) and the magnet should be less than 5mm. Adjust the magnet's location within this scope.
- Ensure the magnet and transmitter do not touch during the ride.
- Place the transmitter on the side with the 'sensor' sign closer to the magnet (on the inner side).
- The distance between the computer and the sensor should not be more than 70mm.
Video 1: Installation Guide for Bikevee BKV-501
4.4. Wheel Circumference Setting
Accurate wheel circumference setting is crucial for precise speed and distance measurements. There are two primary methods:
- Using Marked Size: Record the marked size on your wheel and refer to the table below to find the corresponding perimeter.
- Direct Measurement: Make a mark point on your wheel and on the ground. Cycle the bicycle forward one full rotation of the wheel. The distance traveled on the ground is the wheel circumference (Unit: MM).
- Recommended for Accuracy: For the most accurate measurement, have two people assist. One person should be seated on the bicycle while the measurement is taken.
| SIZE DIAMETER | Circumference (mm) | SIZE DIAMETER | Circumference (mm) | SIZE DIAMETER | Circumference (mm) |
|---|---|---|---|---|---|
| 12 x 1.75 | 935 | 26 x 2.00 | 2055 | 27.5×1.5 | 2074 |
| 14 x 1.5 | 1020 | 26 x 2.10 | 2068 | 27.5×1.95 | 2146 |
| 14 x 1.75 | 1055 | 26 x 2.125 | 2070 | 29×2.1 | 2288 |
| 16 x 1.5 | 1185 | 26 x 2.35 | 2083 | 29x2.2 | 2298 |
| 16 x 1.75 | 1195 | 26 x 3.00 | 2170 | 29x2.3 | 2326 |
| 18 x 1.5 | 1340 | 26 x 7/8 | 1920 | 650x 35A | 2090 |
| 18 x 1.75 | 1350 | 26 x 1(59) | 1913 | 650 x 38A | 2125 |
| 20 x 1.75 | 1515 | 26 x 1(65) | 1952 | 650 x 38B | 2105 |
| 20 x 1-3/8 | 1615 | 24 x 1 | 1753 | 700 x 180 | 2070 |
| 22 x 1-3/8 | 1770 | 24x3/4Tubular | 1785 | 700 x 190 | 2080 |
| 22 x 1-1/2 | 1785 | 24 x 1-1/8 | 1795 | 700 x 200 | 2086 |
| 24 x 1.75 | 1890 | 24 x 1-1/4 | 1905 | 700 x 23C | 2096 |
| 24 × 2.00 | 1925 | 26 x 1.25 | 1953 | 700 x 250 | 2105 |
| 24 x 2.125 | 1965 | 26 x 1-1/8 | 1970 | 700 x 280 | 2136 |
| 26 x 1.75 | 2023 | 26 x 1-3/8 | 2068 | 700 x 300 | 2170 |
| 26 x 1.95 | 2050 | 26 x 1-1/2 | 2100 | 700 x 320 | 2155 |
| 27 x 1 | 2145 | 700C Tubular | 2130 | ||
| 27 x 1-1/8 | 2155 | 700 x 350 | 2168 | ||
| 27 x 1-1/4 | 2161 | 700 x 380 | 2180 | ||
| 27 x 1-3/8 | 2169 | 700 × 40C | 2200 | ||
| 27.5×1.75 | 2114 | ||||
| 27.5×2.125 | 2174 |
5. Operating Instructions
5.1. Basic Operation
- Press the left button (MODE) for 2 seconds to enter SET UP mode.
- In SET UP mode, press the SET button to adjust data numbers.
- Press the MODE button to confirm the set data and move to the next unit.
5.2. Data Display Modes
The computer displays various cycling data:
- Clock: Displays time in 12-hour or 24-hour format.
- Trip Distance (DST): Indicates the distance traveled since the last data reset.
- Total Distance (ODO): Indicates the total number of km/m traveled. This can be set in SET UP mode.
- Maximum Speed (MXS): Specifies the maximum measured speed since the last data reset.
- Average Speed (AVG): Calculated from the measured km/h and total riding time since the last data reset.
- Trip Ride Time (RTM): Indicates riding time since the last data reset.
- Total Ride Time (TTM): Indicates the total ride time. This can be set in SET UP mode.
- Temperature: Displays current temperature.
- Battery Status: Shows current battery level.
Figure 5: Key Features Overview
5.3. Display Backlight (EL)
- To switch the display backlight on, press both SET and MODE buttons simultaneously (EL ON). The backlight mode is not limited by time.
- To switch the backlight off, press the SET and MODE buttons again (EL OFF).
5.4. Auto ON/OFF (Automatic Sleep)
The computer automatically enters standby (sleep) mode after 4 minutes of inactivity (when it does not measure speed). It will automatically start again after 10 seconds of pressing any button or detecting movement (measuring speed).
5.5. Data Reset
To reset the measured data (Trip Distance, Max Speed, Average Speed, Trip Ride Time), press the SET button for 3 seconds. A 'RESET' warning will appear and blink twice, indicating that the data has been erased to 0.
6. Charging
The Bikevee BKV-501 features a convenient USB-C charging interface.
- Charge the computer only with the supplied USB-C cable. Using other cables may cause damage.
- Always unplug the cable after charging is complete.
- Do not leave the device unattended while charging.
- Ensure the USB port is properly covered by its lid after charging to maintain water resistance.
- The battery may get warm during charging; this is normal.
- For optimal battery life, several partial charging cycles are better than a single full cycle. Avoid ultra-fast, high-capacity charging.
- Charge the battery before long-term storage (recharge at least once every 6 months).
- Do not charge or use a damaged computer.
- Do not charge with a power source exceeding 5V.
Figure 6: Type-C Charging Interface
6.1. Battery Indicators
- 1/100% Battery Indicator: Approximately 150 hours of battery life (12 hours with LED display backlight).
- 2/50% Battery Indicator: Approximately 60 hours of battery life (12 hours with LED display backlight).
- 3/25% Battery Indicator: Charge the computer (battery life approximately 10 hours, 0.5 hours with LED backlight).
7. Maintenance
- Regularly check the distance between the sensor and the magnet to ensure it remains within the recommended 5mm.
- Always dismount the computer when cleaning the bicycle or storing it outdoors to protect it from rain and snow.
- Battery capacity may reduce to approximately 70-80% after 300-500 charging cycles. Performance may also decrease at lower temperatures.
- Do not expose the computer to high temperatures (above +40°C, e.g., inside a hot car), low temperatures (below 0°C), high humidity, or direct sunlight.
- Store the device in a cool, dry place, away from children, heat sources, and flammable materials.
8. Troubleshooting
| Problem | Reason | Solution |
|---|---|---|
| Display updates slowly | Climate temperature is low | Place it in normal temperature |
| No display, dark or badly readable | 1. Low battery level 2. Computer exposed to high ambient temperature or direct sunlight | 1. Charge battery 2. Place the computer in a lower ambient temperature environment |
| No speed display or faulty display | 1. Computer is under setup status 2. Incorrect distance between speed sensor and magnet 3. Incorrect wheel circumference setting 4. Transmitting distance too long or angle incorrect 5. Possible wireless signal interference caused by electromagnetic waves (e.g., smartphones, power banks, high voltage sources) | 1. Complete setup adjustment procedure 2. Refer to installation instructions to adjust position (less than 5mm) 3. Adjust numerical value in settings referring to wheel circumference table 4. Adjust distance and angle per installation manual 5. Place computer far from the source of electromagnetic waves |
| Malfunction display | General error | Set up again referring to setup manual |
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | BKV-501 |
| Type | Wireless Bicycle Computer |
| Display Size | 3.0 Inches FSTN segment |
| Display Color | Black and White |
| Waterproof Level | IPX7 |
| Battery Type | Lithium polymer 301535/120 mAh (0.45Wh)/4.2V |
| Battery Life | Up to 300 hours |
| Charging Interface Type | Type-C |
| Charging Time | 1-2 hours |
| Computer Weight (with holder) | 38g |
| Material | PC+ABS |
| Dimensions | 80mm * 51mm * 16mm |
| Operating Temperature | 0°C - 40°C |
| Wireless Data Transmission | Coded 125KHZ low-frequency transmission |
| Automatic Sleep | Yes |
| Auto-Pause | Yes |
| Language | English |
| Certification | CE, FCC, RoHS, UL, WEEE |
9.1. Measured Data Ranges
| Data Type | Measuring Range |
|---|---|
| Current Speed | 1.0 KM/H - 99.9 KM/H (MPH) |
| Maximum Speed | 1.0 KM/H - 99.9 KM/H (MPH) |
| Average Speed | 1.0 KM/H - 99.9 KM/H (MPH) |
| Trip Distance A | 0.1 - 99999.9 KM (MILE) |
| Trip Distance B | 0.1 - 99999.9 KM (MILE) |
| Total Distance | 1 - 999999 KM (MILE) |
| Elapsed Time | 0:00.00 - 99H:59M:59S |
| Clock Time | 0:00 - 23:59 |
10. User Tips
- Minimize Wireless Interference: Wireless interference may occur near smartphones, computers, power banks, lights, other wireless devices, high voltage sources, or railroad crossings. Try to keep the bicycle computer away from such sources for optimal performance.
- Accurate Wheel Circumference: For the most accurate wheel circumference measurement, it is recommended to have two people assist, with one person seated on the bicycle to simulate riding conditions.
- Battery Longevity: To prolong battery life, avoid leaving the device fully discharged for extended periods. Recharge it at least once every six months if stored.
11. Warranty and Support
Warranty Limitations:
The warranty does not apply to damage due to high and low temperatures, physical damage resulting from abuse, improper repair, improper fit, alterations of the fixture, or improper use. The supplier does not accept any liability for injuries or other damage resulting from improper use of this product under any circumstances. Specifications and designs may be changed without prior notice.
Additional Resources:
A detailed user manual in PDF format is available for download at https://manuals.plus/m/40871e2f8c8e4776dec425a21a8a87124f06952c3013ff81508b6ac9084d847b.
