KOM Cycling

Bike Cargo Rack Mount for Rear Radars

What Our Gearhead® Experts Are Saying:

"The KOM Cycling Bike Cargo Rack Mount for Rear Radars is the solution I point riders toward whenever a trunk bag or rack bag is making their seat post radar mount impractical. The rotatable disc is a genuinely useful design detail since rack angles vary enough across different bike geometries that a fixed mount would leave a lot of riders with a misaligned unit. Everything needed for installation is in the box, the fit on standard racks is solid, and the Garmin quarter-turn interface means swapping the radar on and off is as fast as it would be from a seat post mount."

Rear-facing radar has become one of the most meaningful safety additions available to road and commuting cyclists, but its usefulness depends entirely on placement. A radar unit buried behind a trunk bag or blocked by rack hardware is not detecting approaching vehicles or making the rider visible to traffic, which defeats the purpose of carrying it. The KOM Cycling Bike Cargo Rack Mount for Rear Radars addresses that placement problem directly, providing a dedicated mounting solution that attaches to the rear of any standard cargo rack and positions the radar where it has a clear line of sight in both directions.

Installation uses the included M5 rack bolts and accommodates rack spacings from 50 to 85mm, covering the majority of Topeak, Blackburn, and comparable cargo rack designs without modification. The rotatable mounting disc is the detail that makes the mount genuinely versatile across different setups. Rack angles vary meaningfully between bike geometries and rack designs, and the ability to rotate the disc before locking it in ensures the radar unit sits level and properly oriented, regardless of how the rack sits on a given bike. The disc is also replaceable, and the mount uses the standard Garmin quarter-turn interface for compatibility with the Garmin Varia RearVue 820, RTL510, and RTL515, as well as the Wahoo Trackr and Magene L508. A separate disc extends compatibility to the Bryton Gardia.

For riders running loaded commuter setups, bikepacking rigs, or any configuration where a seat post mount is blocked or unavailable, the Bike Cargo Rack Mount for Rear Radars restores full radar functionality without requiring any changes to the rest of the build. The install is straightforward, the hardware is included, and the result is a radar position that works as intended every ride.