Trek CarBack USB Rechargeable Taillight Black Light

Know what's comingRide 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.CarBack helps you ride with more confidence with a radar that detects rear-approaching vehicles and a taillight that's visible from up to 2km awayCarBack can detect and alert riders of rear-approaching vehicles from up to 240m awayCompatible with most cycling GPS computersPair CarBack with the Trek Accessory app to see a vehicle's rear-approaching and passing distance on your smartphoneDesigned with focus, flash, and range to be Daytime-visible from up to 2km awayFour light flash modes: Day Flash 90LM, Day Steady 25LM, Night Steady 5LM, and Night Flash 5LMVisible fuel gauge LEDs make it easy to see CarBack's 7+ hour battery status