Trek CarBack Radar Rear Light

Article number: 5313794
Availability: In stock (1)
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Know what's coming

Ride with extra confidence with Trek CarBack Radar Rear Light. CarBack's radar helps detect rear-approaching vehicles from up to 240m and provides audio and visual alerts through paired GPS head units for increased on-bike awareness.

Built with integrated best-in-class Daytime Running Lights that are visible from up to 2km away, CarBack is a must-have for every cyclist riding on shared roads.


Product details

  • CarBack can detect and alert riders of rear-approaching vehicles from up to 240m away
  • Compatible with most cycling GPS computers
  • Pair CarBack with the Trek Accessory app to see a vehicle's rear-approaching and passing distance on your smartphone
  • Designed with focus, flash, and range to be Daytime-visible from up to 2km away
  • Four light flash modes: Day Flash 90LM, Day Steady 25LM, Night Steady 5LM, and Night Flash 5 LM
  • Visible fuel gauge LEDs make it easy to see CarBack's 7+ hour battery status
  • IPX7 waterproof rating to confidently ride through wet conditions
  • Includes Quick Connect Plus rear mount and USB-C charging cable


Best-in-class features


• Daytime Visible from up to 2km

• Radar can detect vehicle from up to 240m

• Visible battery gauge

• Waterproof USB-C charging

• Compact design easier to mount on smaller frames and with saddle bag

• Pairs with most major cycling GPS head units

• Trek Accessory App allows use with phone


CarBack and the Trek Accessory App


The Trek Accessory App adds to the experience. By pairing CarBack with a phone and app, the riding screen adds additional visual context to approaching autos and their position in relation to the rider. Easily see how far back a vehicle is, as well as if the vehicle is in line with the rider or has started to move over in preparation for a pass.
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