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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

Garmin
Varia Radar 2 RTL510 Rear Light

$199.99ea
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Be seen, be safe.

With vehicle detection technology and up to 65 lumens of illumination, the Varia RTL510 effortlessly integrates with the Garmin network of devices or on its own. 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.


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 220ยบ 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.
 

Light Type: Rechargeable 

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The Radar Taillight v2.0
by John
Cycling Enthusiast
Minnesota
2 of 3 customers found this review helpful.

I had the original Varia Radar taillight and thought it was a great idea. I ride on rural roads that have high speed limits so I only get 5-6 seconds of warning before a vehicle is on me. So knowing what is approaching from behind dynamically is a huge advantage in safety for me.

The Original Varia Radar was great but it had three serious failings First, the taillight was all but useless and was far too low in power. Second, the form factor was all wrong with it being oriented horizontally and tending to interfere with my legs unless it was positioned perfectly. This unit fixes both of those problems. The Taillight is BRIGHT and works great as a daylight flasher. You can see if from a mile away and, as a driver, your eye is drawn to it. The form factor is vertical which solves the leg interference problem. So that's all good. Third, the head unit (available as a bundle) now includes a beeper so you get an audio warning of an approaching target as well.

The only reason I gave it 4 stars for value is that you really should buy the total package of a head unit plus the taillight. Garmin won't sell the head unit separately and should.

Reviewed 10/11/2018
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Solid Improvement on the original Varia!
by Taco
Cycling Enthusiast
Park City, Ut
2 of 2 customers found this review helpful.

As an owner of the original Varia, my only real complaint was battery life. Version 2 has fixed that. The original was good for 4-4.5 hrs, I have yet to come even close to draining the battery on my new model. Might be a tad heavier (I haven't weighed it) but well worth the tradeoff!

Reviewed 8/18/2018
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Excellent rear light and RADAR
by Anonymous
Cycling Enthusiast
Denver, CO

I hadn't considered this until I had trouble with cars on faster descents. The RADAR works just as I expected, and gives me enough warning time to look ahead on the road and choose where to bike, and to turn and take a look behind me. This is what I wanted, a reliable device that told when to look. I'd recommend this rear light for anyone.

Reviewed 9/9/2018
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Outstanding
by Biking in Alabama
AL

Has paid for itself in the first bike ride. Will enjoy having a little extra warning on the longer bike rides.

Reviewed 11/16/2018
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If you don't have eyes in the back of your head you will benefit from this varia
by Sean V
Cycling Enthusiast
Los Angeles

Likes the included mount fits on my pinarello aero seat post. It's fairly small but still very bright. It changes flash patterns and intensity when cars approach. It works seamlessly with my garmin 520 head unit. I ride with a small mirror on my glasses but this gives me MUCH earlier warning for approaching cars (and I'm not always staring at my mirror either). The radar works fabulously on smaller, more lightly traveled roads where you may not hear a car till the last minute. I find the display very easy to interpret. The form factor of the this model varia is nicer sleeker than the original model and works just as well.

Dislikes the seat mount is just a rubber band with a standard garmin quarter twist mount. The twist part feels very secure to me but the actual assembly tends to rotate on the seat post from time to time. It's an easy fix, even while riding but I'm not always paying attention. Getting it to pair the first time was a little dodgy (if I recall, I had to pair the radar and then also include it as part of a garmin light network, but it was only a one time issue)

Overall I now consider this to be an essential part of my daily riding gear.

Reviewed 8/17/2018
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Great Product that works.
by CH
Cycling Enthusiast
Vancouver, WA

I agree with most of the other reviews. It's a great product that works really well. See DC Rainmaker's review to find out more. I completely agree with his assessment.

Of Note

You can pair it with more than one Garmin at a time. I am using a 520 and my friend has a 520 and it worked on both units at the same time. He got the alerts for cars as soon as I did. I will try more when I get the chance.

In a group paceline of 3 or more, it has some trouble seeing around the cyclists behind you, but once it acquires the car is usually stays locked on.

It also will take a little battery off your head unit. On a 77 mile ride I noticed about a 10% extra battery drop on my 520. But still had plenty in the 520 and the Tail light after I was done.

The light is very bright. Is it the brightest out there? No. My light before this was the excellent Planet Bike Super Flash Turbo. This easily outshines that. Plenty visible on a sunny day.

Garmin does make a clamp style mount that you can by from them or on Amazon. Works great and a lot more secure, although I've never had it fall off with the regular mount.

Reviewed 11/9/2018
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Awesome upgrade
by Anonymous
charlotte nc

Battery life is much longer. Works great.

Reviewed 11/29/2018
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Better than the original except for one thing
by Seattle dave
Cycling Enthusiast
Seattle
0 of 1 customers found this review helpful.

The new version improves upon what the first was lacking, brighter light and better battery. Having both I noticed it does one thing worse, it generates a lot more false positives when people or bikes are behind me. The original version almost never did that. Still a gepteat product, hope they can fix this with a software update.

Reviewed 11/12/2018
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Just what I was looking for!
by Iowamarinedad
Cycling Enthusiast
Ottumwa, Ia

Riding rural Iowa roads on my tri bike, the radar works flawlessly-I run through my Garmin 935

Reviewed 11/15/2018
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I love this product.
by Fenderperry
Competitive Racer
North Dakota

A wonderful device that keeps you from being surprised from unseen autos or ones that you dont hear. It makes riding less stressful because you dont have to constantly turn your head looking for autos.

The bright flashing read light is also a wonderful safety feature.

I figure if I was going to have a flashing light anyway, it might as well have radar to detect autos.

Reviewed 8/23/2018
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Awesome product
by Mike B.
Cycling Enthusiast
1 of 1 customers found this review helpful.

I usually ride alone so this is like have another set of eyes watching my back. Ive paired it with my edge 1030 and can easily see cars coming up on me.

Reviewed 10/26/2018
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Great product!
by ACG
Cycling Enthusiast
Vancouver, BC

Great piece of mind when riding on the road. Love the integration with the Garmin Edge. Definitely recommended if you commute by bicycle.

Reviewed 10/19/2018
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Great safety enhancement especially if you ride alone.
by JB
Cycling Enthusiast
Kentucky
1 of 2 customers found this review helpful.

I've quickly gotten to really appreciate the radar, especially when riding alone. I've never liked riding with a mirror and sometimes less noisy vehicles would be passing me by the time I realized they were there. I don't get those surprises anymore. It reliably alerts me to vehicles approaching from behind and gives an idea of how fast they're going. Even works pretty well when riding in a group. One thing I learned quickly is that since it relies on speed differential to identify approaching vehicles, a vehicle that stays behind you and matches your speed for a short time will disappear off the radar until they start going faster than you again. So you do have to pay attention to cars that disappear off the radar without passing you- they may have turned off, or they may just be sitting there in stealth mode. The light is unremarkable but adequate and fairly bright (three modes). As with most Garmin products it seems a little pricey but not terrible if you find it on sale- and it's the only product of this type as far as I know.

Reviewed 9/4/2018
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awesome device, helped keep the whole group safe
by Anonymous
Cycling Enthusiast
Detroit, MI

Our weekend rides feel that much safer with the Garmin Radar. Picks up traffic and keeps me looking forward rather than back.

Reviewed 9/3/2018
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Makes so much sense
by TC
Cycling Enthusiast
NJ

Yes, the information this sends to my Garmin 820 and Varia Vision about approaching cars is accurate, reliable, and extremely helpful for safety. The only time it got it wrong was when it thought a tractor trailer was 2 cars. Big deal. Woulnd't ride alone without this.

Reviewed 8/20/2018
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Superb!
by Anonymous
Cycling Enthusiast
Loveland, CO
1 of 1 customers found this review helpful.

I had the prior version of the Varia Radar. This new unit the RTL510 is much better. Longer battery life, the light is extremely bright and the radar notification is much more reliable. Just a great unit.

Reviewed 8/14/2018
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Great product, never ride without it
by Anonymous
Cycling Enthusiast
Rio Verde, AZ, Scottsdale, AZ

Riding with the RTL510 gives me better situational awareness. I feel safer while riding with it.

Reviewed 8/17/2018
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Needs a tether similar to the edge 1000 and a better mount.
by Anonymous
Cycling Enthusiast
North texas

While installing the mount, I discovered that the device did not fit the aero seat post of may Cannondale Synapse. The end result is that it has a tendency to rotate with the Varia attached to it. Since the moi t is fastened with a rubber band, Im also concerned about losing the device during a ride. The inclusion of a tether would remedy that concern. Otherwise, it performs very well. Im get a visual notification of traffic approaching from the rear and separate blips on my Edge 1000. Its a great add on for my cycling computer!

Reviewed 8/17/2018
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Really cool. Easy to use and works well with 520 head unit.
by philSJ
Cycling Enthusiast
SF Bay Area, CA
2 of 3 customers found this review helpful.

Read the DCRainmaker review and have had the same experience as Ray. Radar is easy to set up and gives me alerts on my 520 when a car comes up behind me reliably. Even my riding group likes it because they know what its telling me either because the light starts blinking or they hear the alert. In town, when cars are all around you, the radar's information is accurate but not much more useful than a bright blinking light (and this is a good, but expensive, bright light). Country roads and hills, when cars can can pop up on you, is where I've come to really like the Varia's information.

Reviewed 7/12/2018
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Great device
by Jonathan
Cycling Enthusiast
PA
1 of 1 customers found this review helpful.

I often ride alone, usually on country roads where cars can come up suddenly. I purchased the light to pair with my Garmin 810 and have been very impressed. After riding with the rear view radar about 5 times I have become very confident in its ability to alert me to approaching traffic and even to track multiple cars. The audible alert and track display on the side of the Garmin screen is unobtrusive and easy to interpret. It seems to take a long time to recharge but otherwise awesome safety device.

Reviewed 7/7/2018
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