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Portland Design Works Gravity Tail Light

Portland Design Works Gravity Tail Light
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Details

The Gravity Tail Light has a built-in accelerometer that detects deceleration or swerving and automatically changes to a super-bright, solid beam to warn following traffic.

- Automatic accelerometer brake light function shines 100 lumens bright
- 2 Modes (runtime): Solid - 20 lumens (12 hours), Flash - 80 lumens (30 hours)
- USB-rechargeable li-polymer battery
- Includes brackets for seatpost and seatstay mounting