Does your bike have a brake light? It could. The Gravity+ from Portland Design Works has an internal accelerometer that triggers a bright red light as you brake or swerve, instantly letting those around you know to pay attention. Whether you're riding in a pack, on a busy seawall or in traffic, an easy way to let those around you know when you're slowing down or changing direction is a game changer. Besides the accelerometer-driven features, it has both a steady and a flashing red light mode. Easy USB charging means you can top up your battery nearly anywhere you go.
- 2 Modes: steady 20 lumens (12 hours) and flashing 80 lumens (30 hours)
- Brake light shines 100 attention-getting lumens of red light
- To calibrate the accelerometer, always install the Gravity+ on your bike before powering it on. Hold the power button down for 1 second to turn the light on or off. Then, keep your bike still for 1 second after pressing the power button to complete the calibration
- Weatherproof housing shrugs off any weather you're willing to ride in
- Lumens and runtimes certified by Labsphere Illumia Light Measurement system to FL1 standard
- Includes a rotating tool-free seatpost mount that makes switching bikes easy, and a bolt on seatstay bracket
- Includes a micro-USB charging cable
