1. Introduction
The CYCPLUS C3 is a versatile dual-mode sensor designed to accurately measure either your cycling cadence or speed. Featuring both ANT+ and Bluetooth connectivity, it can seamlessly integrate with a wide range of cycling computers, smartwatches, and mobile applications. Its compact, lightweight, and waterproof design ensures reliable performance in various cycling conditions.
The sensor supports both Bluetooth and ANT+ protocols for broad compatibility.
2. Package Contents
Please check the package to ensure all items are present:
- CYCPLUS C3 Cadence or Speed Sensor (1 unit)
- CR2032 Battery (pre-installed)
- Rubber Pads (2 pieces - one curved, one flat)
- Rubber Bands (2 pieces)
Ensure all components are included in your package.
3. Specifications
| Feature | Detail |
|---|---|
| Dimensions | 9.5mm × 29.5mm × 38.0mm |
| Weight | 9.2g |
| Battery | CR2032 (220mAh) |
| Usage Time (Cadence) | 600 hours |
| Usage Time (Speed) | 400 hours |
| Standby Time | 300 days |
| Protection Rating | IP67 (Waterproof) |
| Compatible Devices | Garmin, Wahoo, Zwift, Tacx, Bryton, XOSS, Blackbird, etc. |
| Protocol Standards | Bluetooth, ANT+ |
The sensor is IP67 waterproof, making it suitable for use in rainy conditions.
4. Quick Start Guide
Follow these steps for initial setup:
- Open Battery Cover: Push the battery cover's protrusion towards the center position, then gently open the cover.
- Remove Insulation: Remove the transparent insulation spacer from the battery compartment.
- Reinstall Battery & Cover: Place the CR2032 battery back in, ensuring correct polarity. Reinstall the battery cover, aligning the protrusion to the center position.
- Set Mode: Push the battery cover tightly, then slide its protrusion to the left or right to select either speed or cadence mode. The default mode is cadence measurement.
- Activate: After installation, the indicator light will flash for 10 seconds, indicating the sensor is active.
Refer to the diagram for visual guidance on battery and mode setup.
5. Installation
The CYCPLUS C3 sensor can be installed in two ways, depending on whether you want to measure speed or cadence.
5.1. Cadence Measurement Installation
- Fix the flat rubber pad onto the bottom of the sensor.
- Use a rubber band to fix the sensor onto the crank arm (inner side).
- Turn the crank to activate the sensor and establish a connection with your device or app.
Proper placement on the crank arm for cadence tracking.
5.2. Speed Measurement Installation
- Fix the curved rubber pad onto the bottom of the sensor.
- Use a rubber band to fix the sensor onto the front wheel hub.
- Turn the wheel to activate the sensor and establish a connection with your device or app.
- Note: For speed measurement, the inner width of the hub must be greater than 38mm for proper installation and function.
Correct mounting on the wheel hub for speed measurement.
6. Operating Modes and Indicator Lights
The C3 sensor can operate in either Cadence mode or Speed mode. You switch between these modes by adjusting the battery cover.
6.1. Switching Work Modes
To switch between modes, push the battery cover's protrusion to the left or right after reinstalling the battery. The default mode is Cadence.
Important: When switching modes by turning the battery cover, hold the cover firmly with your hand to prevent it from popping up when passing through the gap in the middle.
6.2. Indicator Light Status
- Blue Light Flash: Indicates Speed measurement mode.
- Green Light Flash: Indicates Cadence measurement mode.
- Red Light Flash: Indicates battery power is less than 20%.
7. Connectivity (Bluetooth & ANT+)
The CYCPLUS C3 sensor supports both Bluetooth and ANT+ protocols for connecting to your cycling devices and applications.
7.1. Bluetooth Connection
- Turn on Bluetooth on your phone or receiving device.
- Turn the chainring (for cadence) or tire (for speed) until the sensor's indicator light is on.
- Open your mobile phone cycling software (e.g., Strava, Wahoo Fitness, Zwift) and connect to the sensor from within the app.
- Note: When using the Bluetooth protocol, the sensor can only be connected to one device or app at a time. To change the connected device or app, you must first disconnect from the previous one.
- Note: When using a smartphone app, search for the sensor directly within the app. Searching via the phone's system Bluetooth settings is generally not effective for pairing.
- The Bluetooth name is 'CYCPLUS C3' when used for cadence measurement and 'CYCPLUS S3' when used for speed measurement.
Follow these steps to connect your sensor via Bluetooth.
7.2. ANT+ Connection
- Ensure your cycling computer or smartwatch supports ANT+.
- Turn the chainring (for cadence) or tire (for speed) until the sensor's indicator light is on.
- Initiate a sensor search on your ANT+ compatible device. The sensor should appear and connect automatically.
- Note: When using the ANT+ protocol, the sensor can be connected to multiple devices simultaneously.
ANT+ allows connection to multiple devices simultaneously.
8. Maintenance
8.1. Battery Replacement
When the red indicator light flashes, it signifies that the battery power is below 20% and needs to be replaced. To replace the battery:
- Push the battery cover's protrusion to the center position and open the cover.
- Remove the old CR2032 battery.
- Insert a new CR2032 battery with the positive (+) side facing up.
- Reinstall the battery cover, ensuring the protrusion aligns to the center position, then slide it to the desired mode (speed or cadence).
8.2. Cleaning and Waterproofing
The sensor has an IP67 protection rating, meaning it is resistant to dust and can withstand immersion in water up to 1 meter for 30 minutes. To clean the sensor, wipe it with a damp cloth. Avoid using harsh chemicals or abrasive materials.
9. Troubleshooting
- Sensor not connecting:
- Ensure the battery insulation spacer has been removed and the battery is correctly installed.
- Check if the battery is low (red light flashing) and replace if necessary.
- Make sure the sensor is active by turning the wheel or crank.
- For Bluetooth, ensure no other device is currently connected to the sensor.
- For app connections, search for the sensor within the app itself, not through your phone's system Bluetooth settings.
- Verify the sensor is in the correct mode (speed or cadence) for your intended use.
- Inaccurate readings:
- Ensure the sensor is securely mounted and not moving during your ride.
- For speed measurement, confirm the hub width is sufficient (>38mm).
- Check for any physical obstructions or interference near the sensor.
- Sensor lost during ride:
- Ensure the rubber bands are securely fastened. Consider using zip ties or more robust mounting solutions if experiencing frequent detachment.
10. User Tips
- Quick Response: Many users find the speed sensor provides quicker response to accelerations compared to GPS-based speed tracking.
- Battery Life: The pre-installed battery often lasts for several months with daily use.
- Compatibility: The sensor is widely compatible with popular cycling platforms like Garmin, Wahoo, Strava, Zwift, and XOSS G+.
- Mounting Security: While rubber bands are provided, some users recommend checking their security regularly or considering alternative mounting methods for long-term use to prevent loss.
- Dual Sensor Setup: If you need both speed and cadence data simultaneously, you will need two separate C3 sensors, one configured for speed and one for cadence.
11. Warranty and Support
The CYCPLUS C3 sensor comes with a one-year free replacement or repair warranty from the manufacturer.
For after-sale support, please contact: steven@cycplus.com
Manufacturer: Chengdu Chendian Intelligent Technology Co., Ltd
12. Compliance Information
This device complies with CE and FCC certification standards.
WEEE Directive: This product should not be disposed of with other household waste. Please dispose of it at a designated collection point for the recycling of electrical and electronic equipment. For more information, please contact your local authority or the retailer where you purchased the product.
MADE IN CHINA