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Garmin Varia Radar 2 RTL510 Rear Light Bundle
Garmin Varia Radar 2 RTL510 Rear Light Bundle
Garmin Varia Radar 2 RTL510 Rear Light Bundle
Garmin Varia Radar 2 RTL510 Rear Light Bundle

Varia Radar 2 RTL510 Rear Light Bundle

Mfg PartNum:010-01981-00
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Bundled up in safety-enhancing light.

With vehicle detection technology and up to 65 lumens of illumination, the Varia RTL510 Bundle effortlessly integrates with the Garmin network of devices or on its own, thanks to its inclusion of the Varia Radar Display Unit (RDU). Ideal for those that don't already use a Garmin Edge cycling computer or wish to use their Varia RTL510 across bicycles, the RDU receives the Rearview Radar Vehicle Detection alerts. The Garmin Varia RTL510 Radar Rear Light allows you to ride smarter and more aware. Mounted neatly on the seatpost, the RTL510 provides alerts for vehicles approaching from behind up to 153 yards (140 meters) away. Plus, the bright tail light is visible in daylight from up to a mile away, allowing riders to see and be seen, day or night.

The Garmin Varia RTL510 Radar Rear Light includes the Varia 510 Tail Light, mounting kit, charging cable and documentation.


  • Visible from up to a mile away with up to 65 lumens, this smart tail light features a streamlined design.
  • Vehicle Detection technology provides visual and audible alerts to warn of approaching vehicles.
  • Providing 220º of visibility designed for improving driver awareness.
  • Works with a dedicated radar display unit, or wirelessly integrates with compatible Garmin devices.
  • Battery life: up to 15 hours in day flash, 6 hours in night flash and solid mode.
  • Lumens: 20 - Solid, 29 - Night Flash, 65 - Day Flash.

Varia Radar Light Bundle

Light Type: Rechargeable 

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Best new product in years for rural riding, if you ride in an urban area just buy a good light.
by USA1169
Cycling Enthusiast
Hood River, OR

For rural riding this radar is awesome, it picks up cars from a long distance. Paired with a Wahoo Bolt for me I have the Bolt LEDs set to warn me when a car pops up. It does an excellent job of telling you relative approach speed by varying beeps and colorspeed of flashing LEDs. And you can see one or more cars and their relative distance displayed on the edge of the screen in a strip like a road. Then I got one for my wife who rides a lot in my slipstream. She has the display for the radar instead of a device with a screen. I was surprised how tiny and light that display is. And in some ways it is better than a screen in very bright sun as the LEDs are high intensity. She was squeezed off the road by a guy passing into a blind corner and broke her pelvis last year. The radar now gives her a way to identify and manage approaching cars. Two negatives.... with the light on solid (it flashes when a car approaches fast) the battery goes about 4.5 hours. Another hour of battery life would be perfect. And in any sort of an urban setting the radar quickly becomes a nuisance, I just mute it. If you ride in an urban area dont even think about getting one, it will drive you nuts! But for rural use it is the bomb!! Currently using them on a long cycling trip in Australia and I am thrilled we have them with us.

Reviewed 12/19/2019
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Both front receiver plus rear transmitter
Drayden, MD
3 of 3 customers found this review helpful.

I purchase these items to increase my safety margin and am extremely pleased. I did not want my 1030 display cluttered, which is mounted out front. The receiver display I have stem mounted. I am now never surprised, it only picks up closing traffic (even motorcycles) and makes crossing busy roads a snap. In a word- flawless.

Reviewed 10/8/2018
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A great tool, especially for determining the number of vehicles coming up from behind.
by Anonymous
Cycling Enthusiast
Northeastern CT
2 of 2 customers found this review helpful.

Thought this would be gimmicky but GPLama and DC Rainmaker gave great reviews. Ive found it to be very useful for telling the number of cars coming up behind as well as their speed. It is reasonably good (80-90%) with motorcycles and even some bicycles. it really is helpful in alerting you when to move over or when there is an opportunity to move to smoother road safely.

Reviewed 8/7/2018
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by TC
Cycling Enthusiast
1 of 1 customers found this review helpful.

I got just the main unit because I pared mine with a Garmin 820. Personally I would like that rear light on it to be brighter, but that is minor. The radar on it works flawlessly. It lets me know of cars approaching from the rear well in advance. I see the moving dots in the Varia Vision and hear the beep from the 820 (when used with a third party steering tube mount). All in all, it can greatly improve safety. Yes, when not on sale, it is expensive, especially when you need all parts (Varia, Garmin 820, and Varia Vision), but that is what it is and if you find the extra safety helpful, it is worth it (IMHO).

Reviewed 7/30/2018
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