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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 Anonymous

Best. Product. Ever.
by Anonymous
Cycling Enthusiast
Portland, OR

A friend recommended this to me and I bought one. I love it. For a techie product, I love that it just works. Easy peasy. It is a substantial safety improvement to see cars approaching from behind. It is really the only game changer in many years. I bought an Edge 130 computer to go with it, replacing an older computer, and it is great, too. The best thing is that 1) I can work it, and 2) it requires no sensors. No wires, no batteries to keep replacing. I liked it so well I bought my daughter the same kit.

Reviewed 10/23/2020
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Review by BKane

Immediately indispensable
by BKane
Competitive Racer
Western Maryland
3 of 3 customers found this review helpful.

The Varia RTL515 has immediately become indispensable for me. I ride mostly country roads and have never been able to get used to a helmet mirror, so the Varia is great. It picks up vehicles at the same time as my riding partners with mirrors. The battery life is fantastic - no problem for 100+ mile rides. Garmin undersells what I think is a great feature - the reactive-blink tail light. I think drivers intuit that increasing blinking to mean you know they're there, and they are less apt to brush you with their side view mirror. The only feature/flaw that I see as a negative is that any vehicle that appears on the radar then matches your speed disappears! Once you realize that, you can adjust your perceptions accordingly, but this characteristic of the radar could be in all caps in the manual. Overall, not inexpensive but worth every penny.

Reviewed 8/23/2020
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Review by Anonymous

Best Cycling Product Ever
by Anonymous
Cycling Enthusiast
Chicago
1 of 1 customers found this review helpful.

This product to me is a game changer. I bought this because with the pandemic I was mainly riding alone and felt more vulnerable to cars than in a group of 20 riders. This tells you without looking that a car is coming from about 1 1/2 football fields away (I think actually 143 meters). You can see it approaching you and how fast. I know if I happen to be riding side by side to mover over or if by myself to move as far right as I can. Even if there are things in the road like a hole or debris I know if I can just go right around it or if I need to slow down because there is a car. The brightness of the flashing rear light increases as does the frequency when it detects a car. There is also an audible tone if you want and colors of the approaching car to indicate how fast it is approaching. I see people riding with mirrors but this if far superior. I think at $199 it is the deal of the century. Seems more than worth it to avoid getting hit by a car. Battery life is great. Syncs perfectly every time to my Garmin. Easily can be transferred from bike to bike. Takes about 30 seconds.

Reviewed 8/27/2020
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Review by Rob Hill

May seem unneccesary - until you try it.
by Rob Hill
Cycling Enthusiast
Orlando, FL

It only takes one ride to realize how valuable this is. It works extremely well. It does not get fooled and give false alarms very often. However, if you are riding on a trail that parallels a street, it will rightfully pick up that traffic. If you make a 90 degree turn, the cars passing on the street you just turned off of, will briefly trigger the radar. When you do get an alarm (a very distinct beep) there is plenty of time to react and being able to track its progress is fantastic. If there are multiple cars approaching you will see multiple dots on the screen. It does very well on twisty roads as well. It detects cars approaching around corners sometimes before you can see them. My only word of caution is to always charge it up before every ride. Not that it doesn't have a good battery but It takes a lot of power to do all this and a real bummer if it runs out during a ride.

Reviewed 8/21/2020
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Review by Anonymous

Excellent light
by Anonymous
Cycling Enthusiast

I use this light while riding solo and group riding in my area. I feel safer with the notifications although it picks up other cyclists riding behind as well. I don't like that it takes up a lot of real estate on my seatpost so that I can't use a saddlebag. I like everything else about it.

Reviewed 1/1/2024
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Review by HELL ON WHEELS

THE LITTLE LITE THAT COULD '.. SAVE YOUR BUTT
by HELL ON WHEELS
Daily Commuter
PORTLAND, OR

Great light, I have some connectivity issues and if i can figure those out, this is the best insurance i could have while on the road.

No more mini mirrors attached to your glasses, or handle bars. This is the best and most accurate system.

Cons: you need to use only a bar in bike computer

Reviewed 2/25/2025
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Review by Mick

I wont ride without it.
by Mick
Cycling Enthusiast
South Dakota
6 of 7 customers found this review helpful.

Im 75 with bad hearing and cant wear my hearing aids because of the wind noise. I ride in Spearfish Canyon and there is a lot of traffic at times and loging trucks. It works great and if the are several vehicles behind me it will show each one on the led lights.

My son bought it for me on Fathers Day several year ago and I been using it ever since

I highly recommend it.

Reviewed 5/19/2020
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Review by James D.

Nice piece of equipment
by James D.
Navarre Florida

This is a really nice, potentially life saving piece of equipment. I have really gained a much higher level of traffic awareness. I know when cars are behind me much sooner than ever before. Relying on sound to identify traffic is sketchy at best. This thing rocks and like other reviews I read I'm not really sure how I did without it for so long. Buy it. You won't be sorry.

Reviewed 12/16/2023
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Review by Anonymous

Radar plus light equals longer battery life.
by Anonymous
Cycling Enthusiast
Mesa, AZ

I have had both the radar only and the radar plus light. The 515 turns my light and radar on which allows me to skip two activations in the back. A small plus. What makes it more convenient than the 315 is the 515 battery life is significantly longer. Less removals for charging. I know, I'm lazy. Other than that, they are both fine and I use now use the 515 all the time.

Reviewed 10/27/2023
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Review by Rusty Bottoms

Awesome radar, won't ride on the road without it
by Rusty Bottoms
Cycling Enthusiast
Sacramento

The Varia radar is seriously awesome. My buddy had one and was able to call out whenever a car was coming up behind us on a ride. I quickly bought one shortly thereafter and it is a necessary item whenever I'm out on the road. The peace of mind that it gives while descending at speed and having a warning when a car comes up behind me is worth the price alone. I pair it with my Garmin Fenix watch and it gives me an alert, love it.

Reviewed 10/20/2023
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Review by Francisco

Excellent product for safety. I never ride on the road without it.
by Francisco
Cycling Enthusiast
Portland

I use it when riding in the city or on the road. It is great to get alerted that there are cars behind. The light is very visible as well.

Reviewed 1/17/2025
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Review by Blair

I use this with a Wahoo Elemnt and love the combination!
by Blair
Competitive Racer
Durango, CO
1 of 1 customers found this review helpful.

Advanced notice of approaching traffic from the back BEFORE hearing it is a HUGE safety gain.

Reviewed 1/3/2025
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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 ggswanson

This tail light it genius
by ggswanson
Cycling Enthusiast
Boston MA

Wish I bought one sooner, as it's a brilliant product. Picks up vehicles way sooner than my mirror or my ears, and graphically shows how many vehicles, and closing speed. And it paired instantly with my Garmin computer. A huge advancement in safety, and other than being a little heavy it's a must-have for any road biker or commuter.

Reviewed 8/18/2023
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Review by WP

Never leave home without it!
by WP
Upstate NY

The varia radar is may be the best (and most important) piece of kit I have bought! While I continue to use a mirror to see WHAT is coming up behind me, getting the warning on my head unit prior has been indispensable. It allows me more time to focus on the road ahead, only having to glance in the mirror AFTER I get the warning from the radar. Riding on the road has been a night and day difference since I installed this on my bike!

Reviewed 6/19/2023
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Review by Fourflys

Great product, really nice to know if a car, and how many cars, are behind you at any time. Wouldn't want to ride without it!
by Fourflys
Cycling Enthusiast
Sonoma County, CA

Never thought I needed an additional piece of tech on my bike until I bought an older, used Varia.. after using that for a while, decided I never wanted to ride without one and decided to upgrade to the current model with a better battery and light. Pairs instantly with my Wahoo Bolt v2.

Reviewed 6/5/2023
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Review by redrandy

Bought this for my brother for a b-day gift - he needs eyes in the rear!
by redrandy
Cycling Enthusiast
Salem, OR

I already had one, so I know how great this thing is. I also use a mirror, but have to say this is one of the best tech things I've ever bought starting with my first odometer that mounted down by the dropout and only recorded mileage....(yeah, I'm that old and have been riding that long).

I do turn off the alert sound though as anytime I'm near town and heavy traffic it's way annoying....otherwise zero complaints.

Reviewed 5/1/2023
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Review by MR. JEFE

Hard to ride without it
by MR. JEFE
Competitive Racer
Imlay City MI

4 Stars because of it being kinda pricey.

This is my 2nd one. 1st one broke off on a rough trail (crappy 3d printed mount I made) Not fault of device at all!!

I ride alot of dirt roads and this gives me a heads up when wind/dirt noise makes cars behind hard to hear.

Reviewed 4/11/2023
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Review by ABCBiker

A great tail light that warns me of traffic behind me through my hearing aids via Bluetooth.
by ABCBiker
Cycling Enthusiast
Arkansas

I'm 84 and ride with the Big Dogs on my E-Bike. This light/radar unit keeps me aware of traffic behind me, including the faster riders, and keeps me up on the world. I'm getting better at pairing the Garmin Varia to my cellphone via the Garmin Varia app, and pairing my cellphone to my hearing aids. Now, no more surprises from rear!

Reviewed 3/3/2023
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Review by la15ota

Newbie needs to be safe
by la15ota
Casual Cyclist
San Jose, CA

My cycling enthusiast college to me on a ride and afterward said I should have this item to keep me safe on the road. I love it. It's easy to pair with all the other gadgets he recommended, and it reassuring to know if something is coming up from behind. The light is super bright, and l like the flashing options.

Reviewed 2/16/2023
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