RIDE WITH CONFIDENCE While your Garmin Varia or similar radar system increases your awareness and personal security when you’re out on the road, our Radar Seat Mount builds on the confidence providing a strong and secure mount for your Garmin Varia RTL510, Garmin Varia RTL515, or any other rear-facing device utilizing the Garmin quarter-turn system.   FULLY ADAPTABLE Utilizing the ATOP dial system, our Radar Seat Mount quickly and easily adapts with the turn of a dial to fit a variety of seatpost diameters and geometries: 27.2mm, 30.9mm, 31.6mm, D cross-section, or aero cross-section.   QUICK CHANGE The ATOP dial system quickly and easily installs and secures on any bike in your stable eliminating the need for multiple varia mounts or bothering with the slower bolt-on Varia mounts.   CONFIDENCE IN SECURITY Ride confident knowing your Garmin Varia mount is securely dialled-in with the strong and dependable ATOP lacing system without the fear of a failing single rubber band.   SEATPOST SAFE The ATOP lacing system and rubber adapter pad provides a soft interface that won’t scratch or wear your carbon or aluminium seatpost.