Garmin Varia RTL515 Radar With Tail Light

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.

Friends of mine purchased this and raved. I finally took the plunge when I BTD had them on sale. My 1st impression during the unboxing was of quality which IS the synonymous with Garmin, though I wished it had USB-C instead of a micro USB port.

Next the mounting hardware was complete with adapters for round, aero and D shaped seat posts (and I just happen to have each type in my collection ... perfect ????). At 1st I was a bit apprehensive about having just a single, though very muscular, O-ring being the only thing retaining this to my seat post, but upon reflection, I've NEVER had an genuine Garmin O-Ring ever fail in the many many years I've owned them, so that worry was soon put to bed.

Connecting it to my Garmin and Hammerhead Karoo2 went seamlessly and battery life so far has been at least 6+ hours.

Ok now as for the performance. It's absolutely brilliant!!! I genuinely feel this is as much a game changer in safety and CONFIDENCE as wearing a helmet. It detects vehicles at least 100yards back which gives to time to move to the right, then it signals "all clear" and you feel comfortable moving out into the lane a bit again. What you're NOT constantly doing anymore is looking back over your shoulder for cars and then finding yourself either drifting further into the lane or off it completely or hitting that pothole or the riders in front of you. I will never ride without it and can't believe I've waited this long

Once you've experienced this technology, you'll never be without it again ????????

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.

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.

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.

The Garmin Varia RTL515 has improved my overall feeling of safety on the road ever since I turned it on. It has a very bright light that is easily seen by motorists. The radar is great at picking up traffic coming up from behind and it will notify you on your had unit and start blinking to make motorists aware of your position. I would 100% buy this product again based on how helpful it is in ensuring safety.

This is a great safety add to my bike. It has never failed me. I ride in hilly, rural farm areas and I am sometimes surprised by cars showing up behind me. This radar made that a thing of the past. The integration with the Garmin 1030 plus is nice. It stays in a low power mode but when an alert appears it goes to high flash. It is a tad overweight and needs USB-C like all other Garmin products otherwise it is an excellent light and warning system. I would definitely recommend it if you are thinking about getting one. BTD had a great sale so I could not resist.

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.

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!

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.

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.

A riding buddy has the Varia and told me how much safer he felt being able to see traffic coming up on him. I wholeheartedly agree. It tracks all the vehicles coming up behind you from asfar back as 150 yards. Amazing.

My Second Varia, pairs easily with the 1040 and 830.

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.

I've had one of these for over a year and put it through some cold temps. Battery life has been great so far, as advertised even down into the upper 30's. The system itself can track multiple cars and has a nice beep warning when they are coming up on you. In an urban area, this can be pretty often, but it keeps you from veering into a car you wouldn't have seen otherwise.

It only comes with a mount to attach to a seat post, so cannot mount to a bag without some modifications. I poked a couple holes into my bag to get the screws in an it works great. Only other downside is no strap like the GPS's have to catch the unit if it falls off, so far it has not fallen off.

Four years ago I got the RTL510 version of this (no bluetooth) and paired it with a Wahoo Bolt. That combo has been the single best bit of kit that I have added in ten years. If you ride in urban areas I would probably skip it as the radar will go off constantly, but in suburban and rural areas it is absolutely worth every penny. My first unit worked perfectly, the only reason I upgraded tp the RTL 515 is that after about fifteen thousand miles the battery life degraded from just over four hours to just over three (with the light on solid... if you use the flasher it has much longer life). Just finishing a month in France riding almost every day and the newer RTL 515 has been every bit as solid, with battery life exceeding 4.5 hours on solid. The few times I have gone out without it I feel naked. This from a guy that never used a tail light because it seemed like just one more think to complicate my life.

It is like riding with a group that is calling out car back!

This device makes a wonderful addition to my cycling experience. I get notified as traffic approaches and how many vehicles there are within 253 feet behind me. I can see the speed of their approach and I am notified when all is clear. Also, the light flashes more intensely and quickly while traffic is approaching and so it provides better information to the drivers behind me about my presence. The only downside experience I had was a with the Garmin 830 controlling the light, type of flash and turning it off. Now, I could intervene on the head unit and reselect the flash type I wanted, but turning the Varia off that became a problem, surprisingly. It turns off the light when the Varia is switched off but leaves the Varia's Bluetooth on which runs down the battery. I did find the command in the settings to turn this feature off which works better for me.

All the reviews raving about how good this product is are true. I feel naked riding along a public road without this gadget. Now with that said, in true Garmin fashion it is grossly overpriced for what it is, but I think as a safety device it still delivers enough value to be a good buy. Just don't pay full price for one.

Battery life has been fine for me as long as I remember to charge it every couple of rides. (I ride almost every day)

The mount is crap. Buy a proper seat mount and you will be much happier and your device will be much more secure. I strongly recommend the BUP Labs mounts. They are excellent.

I just came back from a 3.5 hour ride. The radar worked great and helps on the left turns.

I have a back neck therefore my neck twisting is limited. This is an added safety feature for me along with a good rear view mirror.

The drawback is that I only had a 3% charge left in my edge 520 when I got home.

A longer ride and it may stop functioning due to the edge battery being drained.

My back up is the "Ride with GPS" app on my phone