Garmin · Cycling
The Garmin Varia™ RTL515 in the Radar Tail Light configuration adds rearview radar and a bright tail light to help cyclists stay more aware of traffic from behind. It pairs with an Edge® bike computer or a compatible smartphone to deliver visual and audible alerts when vehicles approach.
Built for everyday road use, its compact, vertical seatpost design helps maintain leg clearance while fitting almost any bike. Multiple light modes support different riding scenarios, including group rides, and the radar can be displayed on a Garmin device, a phone, or both for flexible setup.
Varia™ RTL515 detects vehicles approaching from behind and provides visual and audible alerts at distances up to 153 yards (140 meters). With speed-based vehicle threat classification, it’s designed to help riders understand when a vehicle is closing in faster, so attention can stay on the road ahead.
With multiple light modes, Varia™ RTL515 can be set to solid, peloton, night flash, or day flash. Daylight visibility is rated up to 1 mi (1.6 km), helping motorists spot a rider sooner. Output varies by mode, including 65 day flash lumens and 20 solid lumens.
The unit supports flexible display options through ANT+® and BLE. Pair it with an Edge® bike computer or a compatible smartphone, and use the Varia™ app to see approaching-vehicle graphics along with tone and vibration alerts. When used with a compatible smartphone, it can also integrate with select third-party apps such as Ride with GPS.
Design
Varia™ RTL515 is built around a sleek, compact form that mounts to the seatpost of almost any road-use bicycle. Its vertical layout is intended to improve leg clearance while maintaining a comfortable ride. The included mounting kit provides shims for round, aero and d-shaped seat posts, making it easier to set up a secure fit across different frames.
Battery
From commuting to paceline days, the light modes help match the output to the situation. Peloton mode uses a low-intensity flash designed to be kinder to other cyclists’ eyes when riding in a group, while solid and flash options support other visibility needs. Battery life is mode-dependent, including 6 hours solid; 8 hours peloton; 6 hours night flash; 16 hours day flash.
Durability
At 3.9” x 0.8” x 1.6" (98.6 x 19.7 x 39.6 mm) and 2.5 oz (71.0 g), Varia™ RTL515 keeps a low profile on the bike while delivering a 220° viewing angle. It also carries an IPX7 water rating for riding conditions where weather can change quickly.
| Part Number | 010-02376-00 |
|---|---|
| Model | Varia™ RTL515 |
| Configuration | Radar Tail Light |
| ANT+® | Yes (radar, bike lights) |
| Dimension | 3.9” x 0.8” x 1.6" (98.6 x 19.7 x 39.6 mm) |
| Weight | 2.5 oz (71.0 g) |
| Light modes | Solid, peloton, night flash, day flash |
| Lumens | 20 solid, 8 peloton, 29 night flash, 65 day flash |
| Water rating | IPX7 |
| Battery life | 6 hours solid; 8 hours peloton; 6 hours night flash; 16 hours day flash |
| BLE | Yes (radar) |
| Viewing angle | 220° |
| Visibility distance | 1 mi (1.6 km) |
| Vehicle threat classification | Speed-based |
| Maximum vehicle detection range | 140 meters |
| Radar beam width | 40° |
| Varia RTL515 |
| Mounting Kit (includes shims for round, aero and d-shaped seat posts) |
| Cables |
| Documentation |
| General | Radar-only mode, Rear tail light, Rear radar |
|---|---|
| Connectivity | Varia™ app compatibility |
