Garmin Varia RTL515 Rearview Radar Tail Light

Key Features

Reliable rearview radar lets you ride like you know what's coming
One radar. Multiple display options. Pair it w/your compatible Garmin device, your phone or both
The Varia app has you covered if you're using your phone as a primary or backup display
Shine brighter. Daylight visibility lets approaching vehicles see you from up to a mile away
It's small, it's easy to mount, and it works with just about any bike
Get more life out of your radar with up to 16 hours of battery life in day flash mode