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
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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."
"A cool, unique tail light that has an accelerometer built right into it."
So nice to meet you, we're Portland Design Works
We are a small team of cyclists who create beautiful, simple gear for everyday cycling. Since 2008, we've been developing gear that inspires cyclists to get out and ride. We design our products to be unique, memorable, and enhance the beauty of the bikes they are installed on. We donate at least 1% of our top-line revenue to nonprofit organizations that promote cycling in their communities.
Design Philosophy: Quality
We use durable materials built to last, and keep hundreds of small replacement parts in stock so you can easily repair your gear and keep it rolling, ride after ride.
Design Philosophy: Aesthetics
We design PDW products to be charming and memorable. In addition to its primary purpose, our gear serves to enhance the beauty of the bikes it’s installed on. Check out the unique shape and bamboo accents on the Everyday Rack, the classic vibe of the King of Ding Bell, and the simple contours of the Bodega Basket.
Design Philosophy: FUN
Lastly, but most importantly, we keep it fun! Having fun is why we ride bicycles - plain and simple. We design our gear for fun through playful designs like our whimsical bottle cages, silly product names like Bar-ista Cup Holder, Power Stance Kickstand, and Cork Chop Grips, and developing some goods that are just for decoration, like the Zit Bitz.
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.
SHOP LOCAL
Looking to shop local? Head over to our dealer locator to find the PDW Dealer nearest you! We have dealers around the US and around the world.