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Product Information
The Speed Sensor 2 fits around the hub of either wheel and reports wheel speed. There are no magnets and nothing to align against a fork or stay, which is what makes it quick to move between bikes and hard to knock out of adjustment.
Wheel size can be entered in Garmin Connect or self-calibrated by a paired Edge computer or compatible Garmin device. The sensor also records on its own and uploads the ride the next time it connects, so speed and distance are captured even on a ride where you left the computer at home.
It is the reliable way to get accurate speed indoors on a trainer or anywhere GPS is unavailable or unreliable.
- Attaches to the hub of either wheel — no magnets to align
- Moves between bikes without tools
- Self-calibrates with a compatible Edge or Garmin device
- Records rides on its own and uploads when connected
- Accurate speed and distance indoors and where GPS is unreliable
| Brand | Garmin |
| Model | Bike Speed Sensor 2 |
| Part Number | 010-12843-30 |
| Mounting | Wheel hub, either wheel; no magnets |
| Calibration | Garmin Connect wheel size entry or self-calibration with a compatible device |
| Recording | On-sensor ride recording with later upload |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
