Garmin 010-02376-00 Varia RTL515, Cycling Rearview Radar with Tail Light, Visual and Audible Alerts for Vehicles Up to 153 Yards Away

Absolutely amazing technology. Makes my small town fitness riding (I’m 65) much more relaxing and increases safety. Per the picture above, I have a ‘comfort bike’ (Trek Verve) with a very short seat stem and an aftermarket wide seat without the traditional brackets underneath the seat. So, problematic mounting situation. I used an aftermarket stem mount, and bought the 315 model, which is quite small without the tail light. I mount it upside down and have plenty of room between it and the top of the tire. Works perfectly

Works as advertised but could benefit from more range in the radar.

Its awesome - works exactly like in the videos. I like it because at least you know that a car or another bike is coming. Pairs with my Edge Explore perfectly. Battery life really long. Highly recommend.

Yes, it works. So far, no false alarms (other than when riding in a group, of course). Download the app, stick an earbud into your non-traffic side ear, youll get pinged every time a car comes behind you.

I love how easy this product is to connect to my Garmin Edge and the awareness it brings to traffic

I ride alone on country roads and sometimes cars approach me from the rear and I may not be looking at my handlebar mirror but this Garmin rear radar gives me plenty of notice to hear that a vehicle is coming up from behind. I use my iphone with the Garmin App to see the status of vehicles approaching from the rear so I can then look at my rear view mirror to make the necessary moves to stay safe. This unit also connects to my Sena intercom helmet to send me a bluetooth signal alerting me of the approaching vehicle. The only draw back is on roads with heavy vehicle use or when riding with other bikes behind you as this unit does not distinguish the difference between a bike and a vehicle. Since I use this mostly for solo riding, it is a very worthwhile safety feature well worth the cost. Easy to set up and use.

Love it

Absolutely amazing...its like having eyes in the back of your head

Nice safety light never go out with out it.

Let me start off by saying, Ive been biking since my 20s, now in my 50s. Im what I consider a long distance, casual, organize touring biker. In other words Im not a racer. Im not sure how this device has escaped me for as long as it has. I used this radar for the first time on a 20 mile loop only due to the time of day. I must say I was very excited with the way the radar performed. For the first 5 to10 mins I still looked over my shoulder. Once I had a handle on where the car or cars were in relationship to what I saw on my phone. I felt pretty confident with using the radar. Sometimes when you have to rely on your hearing or looking over your shoulder some quieter vehicles manage to sneak up on you especially if the wind is blowing in the opposite direction that you are riding. You then have to make a split second decision on whether to avoid bad road pavement and possibly creating a close call situation or play it safe with the car and pray you and your bike survives hitting a pot hole, gravel, etc. I feel with the radar it allows you to focus more on the road ahead of you, instead of constantly looking over your shoulder. Which actually allows you to make a more informed decision on navigating the pavement, because you see ahead of time where the cars are in relationship to you. Im very satisfied with that feature. I use the radar with the Varia app on my retired LG G7 phone. They both work well together. Im very happy with the app. Its a very basic, lean, and clean app. Its not loaded with a bunch of unnecessary options. It does just what it is suppose to. I may be a little picky, but I just wish that I had the ability to turn off the light and continue to keep it linked to the app. I probably would not use it that way, but it would be nice as option if you need to stretch the battery life a little longer. Definitely not a game changer. Also the bracket is okay, not a big fan of the silicone like stretchy bands for attaching expensive devices on the back of my bike that could possibly brake loose and I may not know in time if the device fell off my bike. I also wish that garmin would make a bracket that allows the radar to be extended pass your saddle bag. I since have ordered a K- Edge Go Big Pro Saddle Rail Go Pro Camera Mount. I was also going to order a 3d garmin to Go Pro adapter to attach to the mount, but i decided to buy a For Garmin Varia Radar RTL510 tail light mount holder saddle bracket off Ebay. This bracket is much shorter, but I only bought it to remove the garmin attachment and attach that to K-Edge. The housing around the garmin attachment is made of medal, which I feel would be better than a plastic 3d adapter. Hopefully with the extra length that the K-Edge has it will be just long enough to clear my saddle bag. I will update when I acquire all of the above mentioned mounts. Oh by the way there are similar mounts on here on Amazon like the RTL510 that also include the garmin attachment, but it seems like they all ship from China. Which would be okay if your willing to wait 5 to 7 weeks.