The
Portland Design Works Gravity Taillight features a pretty handy addition over your average bike taillight. It's got all the usually things you have come to expect like multiple run modes, a long battery, USB rechargeable battery, it mounts to your seatpost, among other things. But what makes the
Gravity so special is the built in accelerometer. This makes it possible or the
Gravity to illuminate when it detects you stopping. This feature is referred to as brake light mode. The light simply gets a bit brighter when stopping. It''s magic!
- Built in accelerometer
- 20 lumens flash mode for 20 hours
- 80 lumens bright mode for 12 hours
- 100 lumens when stopped
- Includes seatpost bracket and USB cable