The Backtracker's front module alerts riders via an LED display
The rear module contains the radar antenna, and features a tail light that blinks more rapidly as vehicles approach
The modules' batteries are charged via USB, with one charge lasting for a claimed eight hours of use
The system can reportedly detect cars within 140 meters (153 yards) of the back of the cyclist
Cycling on the highway can definitely be a risky business. If riders are distracted or have the wind in their ears, vehicles rapidly approaching from behind can be almost right on top of them before being noticed. Gadgets such as mirrors and rear-view cameras can help, although riders still have to think to check them. The Backtracker, however, uses a radar signal to automatically alert cyclists whenever a car is closing in on them.
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