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

Mfg PartNum:010-01980-00
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MSRP:$199.99
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Be Seen and Stay Safe with the Garmin Varia Radar 2 RTL510 Rear Light

The Garmin Varia RTL510 Radar Rear Light allows you to ride smarter and more aware. Mounted neatly on the seat post, 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.


Features:

  • Visible from up to a mile away with up to 65 lumens.
  • Vehicle Detection technology provides visual and audible alerts to warn of approaching vehicles.
  • Providing 220° 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.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

Light Type: Rechargeable 

Mfg PartNum: 010-01980-00 

Dimensions: 3.9” x 0.8” x 1.6 (98.6 x 19.7 x 39.6 mm) 

Weight: 2.5 oz (71.0 g) 

Modes: solid, night flash, day flash 

Lumens: 20 solid, 29 night flash, 65 day flash 

Battery Life: 6 hours solid, 6 hours night flash, 15 hours day flash 

Water Rating: IPX7 

ANT Plus: Yes 

Viewing Angle: 220 degrees 

Ordered by Most Relevant First
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Reviewed 12/14/2020
by Sponaj
Casual Cyclist
South Carolina
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Electronic Life Saver

Until they come out with a lightweight armor plating for bike riders less than 18 lbs. overall, then you kind of need to keep track of what's about to crush you from behind. The Varia RTL 510 keeps you alive and lessens the possibility of becoming a hood ornament for some Yahoo with loud pipes and big tires or, sometimes worse, the silent electric vehicle. Wouldn't leave home without it because not everyone you are in front of on the road has read the relevant section of their state's vehicle operator's manual which specifically states you have a right to exist on the roadway. Good luck out there.

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Reviewed 6/3/2020
by GD
Cycling Enthusiast
NM
Value Rating
Overall Rating
8 of 8 customers found this review helpful.
Nice safety feature

For long lonely dirt road gravel grinding this is a must have safety tool. It warns you when someone is approaching from behind. Works perfectly every time. Even tells you if another rider is approaching. When the wind is blowing this radar is especially handy - no more surprise blow by's from vehicles.

The 6 hour run time limit is pretty true so far, though run time will undoubtedly fade with use. For longer rides I turn it off when I don't need it. For example, riding on busy highways the constant alerting gets a bit annoying. At this point I don't use it on any road where I expect traffic - I just expect traffic.

I have this paired with an Edge 830 and works well. Been a couple of issues where it needs to be reconnected during the first minutes of a ride. Wife has one too, connected in the same way and she's had the same connection issue. Nothing cycling it on and off doesn't solve.

Don't really care for the multi piece mount. It works, even on bumpy single track, but I have no doubt I will eventually lose a piece or two. I have to remove the mount to put the bike in a stand, and I take it off to wash it too. Those little pieces and the O-ring are easily misplaced in a pocket, on a bench, the deck, the truck bumper... you get the idea.

Hey Garmin - make a simpler mount. See the Lezyne tail light stretchy rubber strap thingy as an example of good implementation of the KISS principle.

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Reviewed 9/22/2020
by RCH
Cycling Enthusiast
Fort Collins
Value Rating
Overall Rating
Helps me stay safe, at a reasonable cost. Glad I got it

I really like this radar. I ride mostly on county roads around Fort Collins, with varying amounts of car and truck traffic. Many rides involve crossing the FC urban area. I use it with a Wahoo Elemnt Bolt, and see no compatibility issues. It is wonderful to know when a car is behind, and even nicer to know when the road behind is clear. There is an occasional false positive which clears quickly, it never misses an approaching car or truck. Occasionally a quickly-overtaking bicycle will show briefly, but it becomes easy to interpret how that displays differently on the Wahoo display than a car. Cost was $200, but eliminates the need for a $35 usb-chargeable taillight. So radar peace of mind for $165. Not cheap, but well worth the cost in my mind.

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Reviewed 12/4/2020
by Anonymous
Cycling Enthusiast
La Crosse, WI
Value Rating
Overall Rating
Good for safety!

I hesitated to buy this due to the cost, but I finally got it on sale. I also hesitated because of the spacing on my bike between my seat pack and the tire position, but those are not a problem at all. (The instructions say it requires more space.) The light finds cars way before I hear them coming and it lets me know how close it is. The light has definitely made me feel much safer on the road. I usually ride by myself these days and often on rural roads, and I'm very glad I have the light.

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Reviewed 12/4/2020
by Anonymous
Cycling Enthusiast
Concord, NH
Value Rating
Overall Rating
The Varia works exactly as advertised.

I bought this after getting hit by a car from behind despite using a rear flasher, after which I was riding more nervously. The device would not have deterred the stupid driver, but it has made me less nervous about approaching vehicles, and I am turning my head to check out what's occurring behind me far less frequently. I live and ride in a fairly rural area, on lightly trafficked roads. The warnings are flawless. I think that it would be less useful in urban settings.

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Reviewed 6/19/2020
by tdel010
Cycling Enthusiast
Eugene, OR
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Don't know how I rode without this thing.

I just got back from riding a section of the Oregon Coast Route. Much of the route is on HWY 101, a major highway with a speed limit of 55 mph much of the way (thank goodness there's usually a good shoulder). Having the radar function of this device to alert me to vehicles approaching from behind was an incredible benefit. It generally alerted me before I had even heard the vehicles and gave me a chance to pick the best line to hold to stay safe. I've never, as a driver, seen the lights increasing flashes as vehicles approach, but that sounds cool, too. This thing, a rearview mirror or some sort, and the brightest clothing you can find are probably your best bets for staying alive riding busy roads of any sort. A front flasher's a good idea, too.

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Reviewed 11/18/2020
by Tedolph
Casual Cyclist
Cleveland, OH
Value Rating
Overall Rating
Game Changer

I was skeptical about this product as I have been riding with an eyeglass rear view mirror for years-why would I need radar? After reading some reviews I decided to give it a try. Boy was I surprised. I though it would be redundant with the mirror but boy was I wrong-they are complimentary. With the mirror, generally I had to hear the car first and then look with my mirror, or just look with my mirror before changing lanes. I can maybe hear the car coming 25 yards back so I get a few seconds at best to look at it in my mirror and decide what to do. This thing sees the car coming waaaay back there, more than a football field and gives me a tone. This tells me to check my mirror and now I have three or four times as much time to decide what to do. Now I know way before I get to the intersection how many cars aee behind me before I even check the mirror-situational awareness is vastly improved and with a whole lot less effort and drama. It is like having a buddy 150 yards behind you saying, "car back" and you can hear him. It is expensive but worth every penny. Get the cheaper model that just talks to your Garmin and save the $50.00.

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Reviewed 3/27/2020
by John
Cycling Enthusiast
Ho Chi Minh City, Vietnam
Value Rating
Overall Rating
4 of 4 customers found this review helpful.
A great help in a heavy traffic environment

I am a gravel cyclist in Ho Chi Minh City (Saigon), Vietnam. To get out into the Mekong region, we have to use various roads, highways, ferries, etc. Having this light has been a godsend. Not only is it incredibly bright, it last for our 6 hour Sunday bike rides. On the flashing mode it can last up to 15 hours.

As for the radar function, I am able to pick up cars and trucks at least 100 meters behind me. There is a small ball that moves up the screen of my Garmin Edge 520 giving me a general idea of how far and where the vehicle is in relation to me. The only fault I have found is that it doesn't always pick up motor bikes as quickly as cars and trucks. However, this might be due to the size of these, the fact that they only go at about 20mph or placement of the radar device on my bike. I am going to move it to the end of my bike rack and see if that improves things.

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Reviewed 2/28/2020
by griley
Cycling Enthusiast
Crescent City, CA
Value Rating
Overall Rating
4 of 5 customers found this review helpful.
Second generation rear light.

I really like the improvements in the second generation of Varia. Particularly, the ability to select different patterns for the light depending on conditions, extended battery life, and it is much brighter. I have two concerns. One, the form factor is limiting in how one is able to attach it to the bike. On the original model, it was more compact and convenient. Second, and this may be a user issue, the light goes into pairing mode every time it is turned on.

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Reviewed 11/2/2020
by Sushibarb
Competitive Racer
Loveland Colorado
Value Rating
Overall Rating
Best $$ I have spent on my road bike

Worth every penny. In hind sight If I bought it again I would purchase the new version 515, which is BlueTooth. I am a MTBiker but love riding the Colorado mountain roads, but hate the cars!! I finally feel safe on the road and really enjoy my road rides now that I have the radar. Knowing way in advance when a vehicle is approaching so I am positioned safely and mentally ready. I like to ride with my friends side by side and now we can safely do that. The red light really warms the motorist especially when it starts flashing. I have had motorist stop to tell me how well they could see me and how great the light is. I wish I had the money to buy this for everyone. It�s so important to stay safe out there.

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Reviewed 2/27/2020
by TX-Scot
Cycling Enthusiast
Houston, TX
Value Rating
Overall Rating
Brilliant tech, just works!

The light is very bright and the radar detection of vehicles approaching is very effective, if you go out on solo rides or with small groups on quieter country roads this is incredible good at giving you advanced warning of traffic approaching.

It typically gives you a warning of vehicles approaching about 10 to 20 seconds before you can hear them. Since I got this I have not been surprised by an approaching vehicle once, even on roads where the traffic travels at 50 mph.

The Varia works with a wide range of Gamin cycle computers, I use this with a Garmin Edge 520 and it works flawlessly with it but I was surprised to find it also works well with the Edge 25 I also have.

Overall its a great bit of kit, easy to use and definitely keep me safer while out riding around country roads.

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Reviewed 10/8/2020
by Velocrank
Southwest Virginia
Overall Rating
Must-Have Accessory

I used to write off the Varia as gimmicky and unnecessary until I synced with a friend during a ride together. After the very next ride without the radar warning me of approaching traffic on my usual rural backroads, I immediately went home and ordered my own Varia. This thing is must have for any cyclist riding solo or in a group, on any road and traffic situation. The warning comes in plenty of time to prepare myself, and I really like that I can glance down at my Garmin 520+ and see how many vehicles are approaching via the number of dots on the side of the screen. The Varia also eliminates that "surprise" pass where you never hear the vehicle until it is already beside you. Great for windy days that drown out approaching traffic noise.

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Reviewed 9/29/2020
by Anonymous
Cycling Enthusiast
Las Vegas, NV
Value Rating
Overall Rating
A great investment in safety.

This Varia is a great light and performs as advertised. I value the heads-up warning that vehicles are approaching and love that my Wahoo computer provides an audible warning and the position of multiple cars coming up behind me. My friends without the Varia have keyed into its features and adjust their riding awareness as they hear the beeps and notice changing flashing patterns when cars approach; especially during fast descents or in strong winds which limit our ability to hear.

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Reviewed 12/18/2018
by FlashBazbo
Competitive Racer
Middle Tennessee
Value Rating
Overall Rating
9 of 56 customers found this review helpful.
Works GREAT! But I wish it had a longer range.

For years, I have ridden with a large mirror on my road bike. It has worked fine unless the sun was low behind me or the mirror fogged. In those situations, the mirror was useless. But in those situations (and all others), the Varia works great! Once a vehicle comes within range, you get an audible beep and the blip shows up on your Garmin. Very dependable. It picks up every vehicle. Relative speed and distance is very accurate.

So . . . why not five stars? Three minor nits 1. It occasionally gives you false positives. One cyclist I ride with triggers it as if he were a car - but just one. Nobody else. 2. I wish the light were brighter. 3. I wish the range were 1.5 to 2 times as far as it is. On roads with a 50 mph speed limit or above, by the time the Varia alerts you of the car's presence, it is upon you. I would just like to receive a few seconds more notice.

This is an amazing device for the price. \

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Reviewed 9/24/2020
by Lew
NYC
Overall Rating
Love it

Thought it was a gimmick but a friend told me it was a valuable safety feature. After using it for a few months I never want to ride on the road without it. Also find it to be useful in Central Park with all of those electric bikes and scooters sneaking up on me.

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Reviewed 12/4/2020
by GK
eugene, or
Overall Rating
Amazing!!

I thought I would try it based on the reviews and great price at BTD. I love it!! Works spot on, a few false positive beeps, but zero false negatives thus far in about 4 weeks of use, so a few hundred miles this time of year. I ride with a buddy sometimes and it works even when I am pulling in front. Not sure the one with Bluetooth is needed, as I am using ant+ with wahoo bolt without issue.

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Reviewed 12/4/2020
by Mike
Cycling Enthusiast
Seattle, WA
Value Rating
Overall Rating
Helpful

This is going to be very helpful on my next road bike tour. Not only does it alert me to an approaching vehicle, it tells me if there are more than one. I ride with a mirror and rely on it but the Varia is a worthwhile safety upgrade. My one complaint is that it depletes my Garmin 1030 battery more quickly, but I will tour with a Garmin Charge Power Pack.

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Reviewed 9/13/2020
by Kirk
Cycling Enthusiast
Amherst, NY
Value Rating
Overall Rating
Not perfect but worth it

I won�t lie, there are false positives, but this is still a great tool for helping keep you safe. It�s most impressive moment, was insisting that there was a vehicle behind me, I heard nothing so didn�t believe, but checked before making a left turn. There was a Prius seemingly just back of my left shoulder in stealth mode. (I�ll give the driver credit, he was allowing me space to turn.) The false positives occur mainly in traffic, this device works great on open roads. The additional safety, far outweighs the false positives.

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Reviewed 8/1/2019
by Baron
Competitive Racer
Illinois
Value Rating
Overall Rating
BUY IT!

If you ride on roads with vehicle traffic, you NEED this item! I no longer have to look behind me or listen for traffic, this device will inform you on your Garmin screen of the vehicles behind you and reference roughly how soon they will be upon you and pass you. The ability to display up to 8 vehicles behind you, on the right side of your Garmin screen, will be appreciated too. It is one of the best cycling safety devices I have purchased. Well worth the price!

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Reviewed 8/28/2020
by Vicki
Fresno
Overall Rating
1 of 2 customers found this review helpful.
Maybe it is just not for me.

I can't say that this is a terrible product. It has a bright light and it does the things when it stays connected that it is supposed to do, that is, indicating when cars are coming up and how many. The problem I have is that the battery doesn't seem to last very long and I have had some difficulty getting the device to stay on the mount. I had to secure it with a Velcro strip so that I could feel more safe than it wasn't going to bounce off. I actually put it on one of the Garmin mounts that I would normally use for my Garmin cyclometer because it did not stay on the other mount that came with it. But even at that it tends to flip. I use it on a trike and cannot mount it up and down and maybe that is part of the problem. It does work when it's lying on its side.

I think for me another bright light would have been just as good or putting the money toward a tail light with a camera. I still have to monitor how close cars are to my side. As I said, not a terrible device, but for me I do not feel I got my money's worth out of it. Of course, I have it and so will leave it in the bike.

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