Varia RTL515 rearview radar provides visual and audible alerts for vehicles approaching from behind up to 153 yards away.
Third-party App Compatible
When used with a compatible smartphone, Varia radar integrates with your favorite apps, such as Ride with GPS to overlay your maps with rearview radar alerts.
Easily mount this sleek, compact device on the seatpost of almost any road-use bicycle. The vertical design allows for better leg clearance and a perfectly comfortable ride.