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Garmin Varia RTL515 Radar With Tail Light

GarminVaria RTL515 Radar With Tail Light(Return to Product Page)

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User submitted reviews

Review by Pina Rider

Great Addition To My Bike
by Pina Rider
central Kentucky

There are some roads that I ride that require me to constantly turn and look for cars approaching from behind. With this new radar those days are over. I now know when a car is approaching so I can get over on the shoulder. Love it.

Reviewed 9/5/2024
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Review by Anonymous

I'm amazed at how helpful it is to have early warning of vehicles approaching from behind.
by Anonymous
Vancoiver WA

I resisted purchasing this rear radar light because I thought it wasn't 'really' needed. On my first ride with it I realized it provides early warning of approaching vehicles that I was not aware of even though I used a glasses mirror and checked it frequently. I should have purchased this years ago.

Reviewed 9/6/2024
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Review by Juan

Great price
by Juan
Puerto Rico

Great price good shipping price not the first time and not last I buy from

Reviewed 1/3/2025
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Review by John

An important part of road cycling
by John
Cycling Enthusiast
Naples, FL

This is my second Varia. My first one's battery wore out after so much usage over the past 6 years. I used this in Vietnam to warn me of the cars and motorcycles that swirled around me. It was a big help. I now use it here in the USA. Too many of my friends have been injured in accidents caused by cars, so I am so happy to have this as a part of my daily cycling.

Reviewed 8/23/2024
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Review by Anonymous

Works quite well, consider seat-post height
by Anonymous
Cycling Enthusiast
Seattle

I am not a tall rider so there is no seat-post real estate below my saddle bag so I had to order a new saddle bag with a Garmin mount. It works pretty well but the angle is down more than I'd like.

The light is very bright, I put it on flash mode to save battery. I disabled the audio from the radar as it is quite annoying in heavily trafficked roads.

Reviewed 8/16/2024
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Review by Crystal

Very good for safety
by Crystal
Cycling Enthusiast
Virginia

Always relied on a bar end mirror, then husband talked me into also getting this. Surprised by how good it is. Often, didn't hear a car coming if windy out or other noise. But the Varia lets you know something is behind from WAY back and shows its progress in getting closer to you, so you will be ready to watch in your mirror when it is passing. GREAT product.

Reviewed 8/9/2024
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Review by Anonymous

Fantastic product!!
by Anonymous
Cycling Enthusiast
Lake Oswego Oregon

This product was an instant success, I smile as I see cars coming up from behind, and can prepare with enough notice. Addicted to the safety aspects after one mile, truly a game changing product. As important as riding with a helmet for added safety on the road. Expensive, but would pay twice the price for what it does and how it improves the quality of every ride. Easy to link to my Garmin display with plenty of battery power for a 100 mile + day ride.

Reviewed 6/19/2023
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Review by Anonymous

I am moe aware of vehicles on the road! Satfey first
by Anonymous
Cycling Enthusiast
MA

I love the radar feature, I have an older Garmin and it does sync with it so I feel safer on the road. The negative thoughts: It does not seem to hold the charge a 2 hour ride. It should come with a hard mount the elastic mount is a cheap and non secure method to keep an expensive light on the on the bike. I bought a hard mount separate.

Reviewed 8/1/2024
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Review by Gene Kriegsmann

Simply Essential!
by Gene Kriegsmann
Cycling Enthusiast
Bonney Lake, WA
1 of 1 customers found this review helpful.

The vast majority of the 150 Miles per Week that I ride are on roads. The Varia Radar in conjunction with my Edge 1030 Plus make those rides far safer. The unit starts to flash as soon as it "sees" an approaching vehicle. I was told by a UPS driver that he could see the flash as far back as 3/4 of a mile in bright sunlight. That anyone who claimed they didn't see it was either blind or lying. Simultaneous with the intensified flash a display on the computer screen tracks the approaching vehicle. I have found it is quite easy to estimate the relative speed of the vehicle. As many as 6 individual cars have shown simultaneously in the display. The display is tinted red until the last vehicle has passed, then it turns green indicating the road is clear. No car has ever passed me and not shown on the display well in advance. It is absolutely essential when I have to move across the lane to reach a left turn lane. This unit is my second one. The earlier one was still going strong after more than three years of use, and many thousands of miles of travel. I mistakenly thought that the battery was weakening, and chose to replace it. That is fine. I gave it to a friend who will continue to use it, likely for many years to come. Of all the safety gear I have purchased over the years, this is the best. For those who might wonder, it is also usable with Wahoo computers.

Reviewed 6/15/2023
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Review by JayU

Not 100% accurate device, but close
by JayU
Cycling Enthusiast
SW FL
2 of 2 customers found this review helpful.

I recommend using the Varia in conjunction with a dropbar end mirror, or helmet mirror, for knowing what's behind you. The Varia syncs cleanly with my Wahoo Bolt head unit, and is mostly accurate.

The Varia's cons are: 1) If a car/truck is keeping pace with you, it won't show up. It needs to be gaining on you. So, sometimes the car shows up on the screen only as it's passing you. 2) Ghosts. The vehicle icon stays on the screen sometimes even after there's no longer a vehicle behind you. Seems to happen most after making a turn. 3) "RADAR ERROR". I get this message occasionally, maybe once per ride. The quick fix is to Dismiss the message. Then it starts working right again, usually.

Reviewed 5/16/2023
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Review by Anonymous

Great rear radar
by Anonymous
Cycling Enthusiast
San Francisco, CA

I've been using this bike radar for a while now, and when I compare this to other less expensive options, the radar cone (the triangular detection area) the radar covers is larger, and accuracy is a bit more precise when detecting oncoming rear traffic.

As with any threat detection system, the rider's eyes and ears are the best.

Reviewed 7/8/2024
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Review by Anonymous

Great when it works properly, dangerous when it doesn't.
by Anonymous
Cycling Enthusiast
Boston
2 of 3 customers found this review helpful.

This RLT515 is a replacement for the RLT510 that I had been using for almost 4 years but sadly lost. It looks virtually identical but also now includes bluetooth and "peloton" mode. Unfortunately I've been having problems with my new unit throwing "0:FC" errors somewhat randomly during my rides. Some rides it performs great while other times it gets so bad that I have to disconnect it from my Edge 1040 solar. For instance I went for a 3 hour ride recently and it was fine for the first hour and a half then is started throwing the error several times a minute which is both frustrating and dangerous. The error came up probably 30 times in about as many minutes so I just disconnected it from my headunit and used it as a dumb light.

I never had these problems with my old unit and would go back to it in a heartbeat if I could find it. Searching the Garmin forums made it seem that it's a software issue and Garmin is aware of it. I love Garmin hardware but their software is utter garbage, hopefully they take care of this soon.

Reviewed 4/11/2023
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Review by Anonymous

So glad I bought it item
by Anonymous
Cycling Enthusiast
Albany NY

Today was my second ride using the Garmin Varia. I really like it because it warms you about cars that are behind you from a very long distance. All that information is shown on your Garmin head unit. The view on the screen contracts and there is a dot that shows the car as it approaches you. I feel much safer knowing what is going on behind me and this device works very well. I did get a sensor error message once for a short time. But it resumed working as it should shorty after. I'm glad I bought it.

Reviewed 4/9/2023
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Review by Walt

Great Safety Enhancing Device!
by Walt
Cycling Enthusiast
Portland, OR

I really like that the Varia, coupled with my Garmin cycling computer, let's me know what is happening behind me without needing to look behind and check or rely on what I hear. I also like the I brightness, visibility and long battery life associate with using the "day flash" mode on the light! I feel safer on rides using this Varia RTL515 device!

Reviewed 6/3/2024
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Review by golfwheels

Great product!
by golfwheels
Daily Commuter
Chicago, IL
1 of 1 customers found this review helpful.

A lot of bike tech these days seems like overkill but that's not the case with this. It has made my commute safer and I wouldn't feel as comfortable riding without it. I use the Garmin 530 and the ap on my phone. I keep one earbud in while riding to get the sound alerts. I love the color sequence that it goes through: orange means a slower vehicle, red means a faster vehicle and green means all clear. After using since last May to commute, I can honestly say I have yet to see a false positive or negative. The only issue I had was my old pannier system blocked the sensor. so I had to swap that out. Otherwise, this thing works flawlessly and makes my daily commute safer. I hated the small mirror I used to use on my bar end which was way to distracting.

Reviewed 1/11/2023
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Review by Anonymous

Garmin predictable life expectancy
by Anonymous
Cycling Enthusiast
Modesto, Ca

My third Varia taillight, the 510 lost ability to hold a charge for a whole ride, the replacement 515 went 4 years and began acting like it wasn't charged when it was. The new one works perfectly as expected, I'll figure 4 years from this one as well. As far as the Varia radar taillight I really can't imagine anyone riding road without one. A basic requirement for safety.

Reviewed 5/16/2024
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Review by Matt Edler

Safety that's worth the price tag!
by Matt Edler
Portland
1 of 1 customers found this review helpful.

The Garmin Varia is a great device for informing you of any traffic (car or otherwise) overtaking you from behind. This device alarms (if you want) and has a visual proximity indicator, giving you ample time to shelter as close as possible to the side of the road.

I found the device to be most helpful not on busy roads while commuting, but on longer rides at those moments when riding two-abreast, it's a great reminder to fall into single file, as it alarms or notifies you with plenty of time to make this adjustment.

Hard to ride without it at this point!

Reviewed 10/27/2022
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Review by Anonymous

Great product , must have in urban and city rides
by Anonymous

If you're looking for more safety and want to know what's coming behind you this is the product you should have attached to your bike. It definitely sees everything that's coming towards you and gives a warning you do need a garmin computer for it to work properly.

Reviewed 9/12/2022
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Review by Lake Swimmer

Who would't want one.
by Lake Swimmer
Competitive Racer
Pa

I suffer from double vision and struggle to look behind me to the left. That's not good for me or those I need to alert to "CAR BACK". The Garmin radar works really well. It even alerts you to multiple vehicle approaching. The only problem I have is that the red alert is not very bright when wearing sun glasses and the audible alert ought to be louder.

Reviewed 4/6/2024
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Review by MSPBiker

Worthwhile safety feature
by MSPBiker
Daily Commuter
Saint Paul, MN

You'll need a bike computer or Garmin watch, but assuming you have one (or both), this is a very worthwhile piece of safety equipment. It's quite reliable and easily understood. It pairs with your computer like any other sensor. I used to rely on listening for cars and looking over my shoulder before moving out into a lane. I still do both, but there are many times when I hear nothing and the Vario beeps to let me know someone is there.

Reviewed 8/5/2022
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