The Wahoo Trackr Speed Sensor is a hub-mounted, magnet-less speed sensor that tracks your cycling speed in real time and sends data to bike computers, watches, or apps.

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🔧 Key Features

• Magnet-less design → mounts directly on the wheel hub
• Dual connectivity → ANT+ + Bluetooth (works with Wahoo, Garmin, Zwift, etc.)
• Automatic activation → wakes when you spin the wheel
• LED indicators → shows pairing & speed detection
• Compact & lightweight → ~13g
• Battery → CR2032 coin cell (~200 hours usage)
• Waterproof → IPX7 rating (rain-safe)

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⚙️ How it works

• Mount on front or rear hub
• Spin the wheel → sensor wakes automatically
• Connect via Bluetooth/ANT+ to:
  • Bike computer (e.g. Wahoo ELEMNT)
  • Apps (Zwift, Wahoo app, etc.)
• It calculates speed based on wheel rotation + circumference

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👍 Why cyclists use it

• More accurate than GPS (especially indoors or under trees)
• Essential for:
  • Indoor trainers (non-smart trainers)
  • Data consistency in tunnels/urban areas
• Works seamlessly with training ecosystems