Sigma BC5.0 Wireless Bike Computer

Tracking your rides shouldn't require a mess of cables or a complicated setup. The Sigma BC5.0 Wireless Bike Computer gives you essential ride data—speed, distance, time—without the hassle of wires, so you can focus on the road ahead.

Who is it for

This computer is ideal for cyclists who want a simple, reliable way to monitor their performance. Whether you're a commuter keeping an eye on daily mileage, a weekend rider tracking fitness progress, or a touring cyclist needing total distance logs, the BC5.0 Wireless delivers the core metrics you need in a compact, easy-to-read format.

Main features

• Wireless ATS transmission eliminates cable clutter and simplifies installation.
• Full text display shows current speed, trip distance, total distance, ride time, and clock (12/24h).
• Tool-free mounting with included ATS transmitter and power magnet—attaches in seconds.
• IPX8 waterproof rating means it can handle heavy rain and even temporary submersion.
• Auto start/stop pauses timing when you stop, ensuring accurate ride time.
• Data retention during battery changes—no need to reset your totals.
• Long battery life: approximately 2 years for the computer, 1.5 years for the transmitter (CR2032 batteries).

Specifications

• Transmission: Wireless ATS (Analog Transmission System)
• Functions: Current speed, trip distance, total distance, ride time, clock (12/24h)
• Water resistance: IPX8 (waterproof)
• Battery type: CR2032 (computer and transmitter)
• Battery life: Computer approx. 2 years, transmitter approx. 1.5 years
• Mounting: Tool-free mount, clamp included
• Display: LCD, full text, no backlight
• Bike profiles: 1
• Auto start/stop: Yes
• Predefined tire sizes: Yes
• Data retention: Yes (during battery change)
• Included accessories: ATS transmitter, power magnet, mounting material

Tips

For the most accurate readings, ensure the magnet passes within 5 mm of the transmitter and that the transmitter is aligned with the computer. Replace both batteries at the same time to maintain consistent performance. If you ride in extreme conditions, periodically check the O-ring seal on the battery compartment to preserve waterproofing.