Gravity Plus USB Tail Light
A tail light that senses swerves or deceleration, upping the power to 100 lumens to keep you visible.
Details
The Gravity Plus 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. To allow the accelerometer to calibrate, 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.
Specifications
Manuals
FAQ
Pairs well with
Gravity Plus USB Tail Light
Featured On
"... this will become your “go-to” rear light when you need one."
"Overall, we found the Portland Design Works Gravity Plus to be a simple and effective bike taillight."
"... a compact, affordable, and surprisingly smart option for anyone who rides after dark."
Lifetime PDWarranty
If you're not happy, we're not happy. Portland Design Works guarantees our products for life against any defects in workmanship or materials
This gear gives back.
As a member of 1% For The Planet, each year we donate 1% of our top of line revenue to nonprofit organizations working to protect our planet.
Our service is amazing
Have a question on your gear? Need help with an install? Shoot us an email or give a jingle, we're here to help make your ride the best one yet.