Garmin
Garmin Varia RTL515 Rearview Radar with Tail Light
Rear-view radar and tail light warns of vehicles up to 153 yards behind and shines a 65-lumen day-flash visible for a mile
- Visual & audible alerts for vehicles approaching from behind
- Detects traffic up to 153 yards / 140 metres away
- Daylight visibility up to one mile with 65-lumen flash
- ANT+ wireless link to Edge computers & wearables
- Up to 16 hours battery life in flash mode
Rearview Radar with Tail Light
The Garmin Varia RTL515 is a rearview radar with an integrated tail light built for cyclists who ride on roads shared with motor traffic. It provides visual and audible alerts when vehicles approach from behind up to 153 yards away. The unit pairs with compatible Edge bike computers, select Garmin wearables, or the Varia smartphone app. Peloton mode offers a low-intensity flash that is considerate to other riders in a group.
Thermals noise and power draw
The device runs on an internal battery rated for up to 16 hours in flash mode. Its daylight-visible tail light emits 65 lumens in day flash mode and can be seen by drivers up to one mile away. The compact vertical design mounts to most road, touring, and commuter bicycles without interfering with leg clearance. No fan or active cooling is present, so operation is silent.
What this replaces and when to upgrade
The RTL515 replaces a standard rear light by adding radar-based vehicle detection and alerting. The jump is worth it for riders who want earlier awareness of overtaking traffic without turning their head. Buyers who need a front-facing light, a camera, or a radar that works without a paired display or phone should look elsewhere.
Highlights
- Visual & audible alerts for vehicles approaching from behind
- Detects traffic up to 153 yards / 140 metres away
- Daylight visibility up to one mile with 65-lumen flash
- ANT+ wireless link to Edge computers & wearables
- Up to 16 hours battery life in flash mode
Specifications
| Brand | Garmin |
|---|
Questions about this item
How do I pair the Varia RTL515 with my Edge bike computer and what step do riders often miss?
Mount the unit on the seat post, wake the radar, then add it as a sensor in the Edge menu — many forget to enable the radar profile so alerts never appear.
Which part of the RTL515 will need replacement first and when?
The internal rechargeable battery is the only wear item; after several seasons expect reduced run-time from the rated 16 hours in flash mode.
At what distance does the radar stop detecting cars on a long, straight descent?
Detection maxes out at 153 yards (140 metres), so vehicles beyond that range will not trigger an alert until they close the gap.
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