Entwodiksyon
The Sigma BC 5.0 Wired Bike Computer is a compact and essential device designed to track your cycling performance. It offers five core functions, an easy-to-read display, and a durable, weatherproof design. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and longevity of your device.
Kontni pake

Figi 1: Kontni pake a. This image displays the Sigma BC 5.0 bike computer along with its wired speed sensor, magnet, mounting bracket, battery, and zip ties for installation.
Anvan ou kòmanse enstalasyon an, tanpri verifye si tout konpozan yo prezan nan pake a:
- Sigma BC 5.0 Bike Computer Unit
- Capteur Vitès Filaire
- Rou Magnet
- Sipò Montaj ak Kab
- Pil CR2032 (pre-enstale oswa separe)
- Zip Ties for Installation
Enstalasyon ak Enstalasyon
1. Enstalasyon batri

Figi 2: Konpatiman batri a. This image shows the rear of the Sigma BC 5.0 bike computer with the battery cover removed, revealing the CR2032 battery slot.
The Sigma BC 5.0 uses a CR2032 battery. If not pre-installed, open the battery compartment on the back of the unit using a coin, insert the battery with the positive (+) side facing up, and securely close the cover. The battery life is approximately 2+ years.
2. Enstale Odinatè a ak Capteur a

Figure 3: Mounted Bike Computer. A hand is shown interacting with the Sigma BC 5.0 bike computer, which is securely mounted on bicycle handlebars, demonstrating its compact size and easy accessibility.
- Mounting Support: Attach the mounting bracket to your bicycle handlebars or stem using the provided zip ties. Ensure it is securely fastened and positioned for easy viewing.
- Capteur vitès: Mount the wired speed sensor to the front fork of your bicycle using zip ties. Position it so that the sensor head is aligned with the wheel magnet.
- Leman wou: Attach the magnet to a spoke on your front wheel. Ensure the magnet passes within 1-3 mm of the speed sensor head with each wheel rotation. Adjust the sensor or magnet position as needed.
- Wout kab: Route the sensor cable along the fork and frame, securing it with zip ties to prevent interference with moving parts. Plug the cable into the back of the bike computer unit.
- Inite Odinatè: Slide the Sigma BC 5.0 unit onto the mounting bracket until it clicks into place.
3. Initial Setup and Wheel Size
After installation, you may need to set the wheel circumference for accurate speed and distance readings. Refer to the specific instructions in your device's quick start guide for entering this value. Typically, this involves pressing and holding a button to enter setup mode and then cycling through options to input the wheel size (e.g., in mm).
Operating the Bike Computer

Figure 4: Five Essential Functions. This composite image shows four Sigma BC 5.0 units, each displaying one of the five core functions: current speed, trip distance, total distance, ride time, and clock.
The Sigma BC 5.0 features a single button for easy operation and cycling through its five essential functions:
- Vitès aktyèl la: Montre vitès monte bisiklèt ou an tan reyèl.
- Distans vwayaj: Shows the distance covered during your current ride.
- Distans Total (Odomèt): Accumulates the total distance covered by the bicycle.
- Tan woulib: Suivi dire woulib ou ye kounye a.
- Revèy: Montre tan aktyèl la.
Press the button briefly to cycle through these functions. The display is designed to be easy to read, even while riding.
Antretyen ak Swen
Rezistans move tan

Figure 5: Weatherproof Design. This image highlights the water resistance of the Sigma BC 5.0 bike computer, showing its surface covered in water droplets, indicating its suitability for use in various weather conditions.
The Sigma BC 5.0 is designed to be weatherproof, allowing for use in various conditions. While it can withstand splashes and rain, it is not intended for submersion. After riding in wet conditions, wipe the unit dry with a soft cloth.
Ranplasman batri
The battery typically lasts for 2+ years. When the display becomes dim or functions become erratic, it's time to replace the CR2032 battery. Follow the battery installation steps outlined in the Setup section.
Netwayaj
Netwaye inite a ak yon mou, damp twal. Pa sèvi ak pwodui netwayaj abrazif oswa solvan, paske sa yo ka domaje ekran an oswa casing.
Depanaj
- Pa gen lekti vitès/distans:
- Check the alignment of the wheel magnet and speed sensor. They should be very close (1-3 mm gap).
- Ensure the sensor cable is securely plugged into the computer unit.
- Verify the battery is correctly installed and has sufficient charge.
- Ekran an fèb oswa vid:
- Ranplase batri CR2032 la.
- Asire w ke batri a mete ak polarite ki kòrèk la.
- Lekti ki pa kòrèk:
- Confirm the correct wheel circumference has been entered into the computer.
- Check for any loose connections or damage to the sensor cable.
- Inite a pa reponn:
- Retire epi remete batri a pou fè yon reset mou.
- If issues persist, contact Sigma customer support.
Espesifikasyon

Figi 6: Dimansyon pwodwi a. This image illustrates the compact size of the Sigma BC 5.0 bike computer, showing its height (51mm), width (38mm), and depth (10mm), along with a 1.7-inch screen diagonal.
| Karakteristik | Detay |
|---|---|
| Nimewo Modèl | 05210 |
| Dimansyon pwodwi | 38L x 10W x 51H millimeters (approx. 3.8 x 1 x 5.1 cm) |
| Pwa atik | 24 gram |
| Gwosè ekspozisyon | 1.7 pous (dyagonal) |
| Kalite ekspozisyon | HTN |
| Kalite batri | CR2032 Lityòm Metal (enkli) |
| Lavi batri | Approximately 2+ years |
| Koneksyon | Branche |
| Fonksyon | Current Speed, Trip Distance, Total Distance, Ride Time, Clock |
| Koulè | Nwa |
Garanti ak sipò
Sigma products are manufactured with high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the official Sigma websit la oubyen kontakte depatman sèvis kliyan yo. Kenbe prèv acha ou pou reklamasyon garanti.
Pou plis asistans, vizite: www.sigmasport.com





