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Keep track of cars easily with help of a radar

Stay aware of approaching cars with the Varia RVR315. This rearview radar pairs with your Garmin Edge bike computer, smartphone or other Garmin device to alert you of vehicles approaching from behind up to 140 meters away.

When used with your smartphone, the Garmin Varia app uses bold graphics to indicate the position and speed of approaching vehicles, plus tone and vibration alerts.

Product details

  1. Rearview radar provides awareness of vehicles approaching from behind up to 140 meters away
  2. Pairs with Garmin Edge computers, smartphones using ANT+ or Bluetooth, and other Garmin devices
  3. Varia smartphone app provides graphics, tone and vibration alerts of approaching vehicles
  4. Integrates with apps such as Ride with GPS to overlay maps with radar alerts
  5. Compact vertical design mounts easily to round seatposts
  6. Battery life: up to 8 hours

More options


Battery 1450Li-Ion
Clamp Universal
Weight 48g
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Weights are based off Trek pre-production products at time of publication. Weights may vary in final production.

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