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expiredStrifeZero posted Jun 20, 2024 07:39 PM
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expiredStrifeZero posted Jun 20, 2024 07:39 PM

Garmin Varia RVR315 Cycling Rearview Radar w/ Visual & Audible Alerts

+ Free Shipping

$100

$150

33% off
Amazon
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Deal Details
Amazon has Garmin Varia RVR315 Cycling Rearview Radar w/ Visual and Audible Alerts on sale for $99.99. Shipping is free.

Thanks to Deal Hunter StrifeZero for finding this deal.

Key Features:
  • Rearview radar provides awareness of vehicles approaching from behind up to 153 yards (140 meters) away
  • Pairs with your Edge bike computer and compatible smartphone as well as select Garmin wearables or the radar display unit
  • When used with your compatible smartphone, the Varia app provides graphics — plus tone and vibration alerts — to indicate approaching cars
  • When used with a compatible smartphone, Varia radar integrates with third-party apps such as Ride with GPS to overlay your maps with rearview radar alerts
  • Compact vertical design mounts easily to most road-use bicycles
  • Battery life: up to 8 hours

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
  • About this product:
    • Rating of 4.8 from over 3,200 customer reviews.
  • About this store:

Original Post

Written by StrifeZero
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has Garmin Varia RVR315 Cycling Rearview Radar w/ Visual and Audible Alerts on sale for $99.99. Shipping is free.

Thanks to Deal Hunter StrifeZero for finding this deal.

Key Features:
  • Rearview radar provides awareness of vehicles approaching from behind up to 153 yards (140 meters) away
  • Pairs with your Edge bike computer and compatible smartphone as well as select Garmin wearables or the radar display unit
  • When used with your compatible smartphone, the Varia app provides graphics — plus tone and vibration alerts — to indicate approaching cars
  • When used with a compatible smartphone, Varia radar integrates with third-party apps such as Ride with GPS to overlay your maps with rearview radar alerts
  • Compact vertical design mounts easily to most road-use bicycles
  • Battery life: up to 8 hours

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
  • About this product:
    • Rating of 4.8 from over 3,200 customer reviews.
  • About this store:

Original Post

Written by StrifeZero

Community Voting

Deal Score
+21
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Model: Garmin Varia RVR315 Rearview Radar, Black

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Sort: Lowest to Highest | Last Updated 4/5/2026, 03:34 PM
Sold By Sale Price
Target$107.99
Best Buy$114.99
NewEgg$134.99

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Top Comments

ChrisTran206
81 Posts
50 Reputation
No less than it tells drivers to stop parking in the bike lane or that they still need to pass with 3 feet regardless of a bike lane.
Timless
2933 Posts
247 Reputation
bicycle can occupy the full lane. they're not restricted to the bike lane.

or are you scared of a biker crashing into your Ram1500 and putting your life in danger?
rodge
420 Posts
114 Reputation
Most car drivers are too dumb to realize this. A bicyclist needs to position in the bike lane to account sometimes for road debris, glass, rocks etc on bike lane or part of it.
Also when bikers go too much to the right side of lane, cars will pass so close to you like you don't exist and will run them off the road. For such dumbness, cyclists will position such that idiots don't pass them when its not safe for them (bicyclist). So stop being petty and show concern for others safety shake head.

40 Comments

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Jun 21, 2024 02:02 AM
420 Posts
Joined Jan 2005
rodgeJun 21, 2024 02:02 AM
420 Posts
Or you can carry an USB charger to charge it. Also I always have one of these in addition to my Varia RTL510: Fenix tail light [fenixlighting.com]. Serves as a backup or a second light. and has runtime of over 50 hours when blinking !
Jun 21, 2024 02:57 AM
46 Posts
Joined Sep 2014
kestrel242Jun 21, 2024 02:57 AM
46 Posts
Quote from mrdeucie :
It alerts you sooner and also changes flashing patterns (with the lit version) when something is approaching you to alert them if they're not paying attention.

I'm wondering how the battery life is on this. I have the lighted version and after a long ride, 9 hours, it was dead and I had to ride home taillight and radar less. Will need to start carrying s spare taillight on those longer days.
This has much shorter life according to DCRainmaker: https://www.dcrainmaker.com/2020/...eview.html
Jun 21, 2024 03:02 AM
2,490 Posts
Joined Aug 2018
VioletTent657Jun 21, 2024 03:02 AM
2,490 Posts
Quote from danbrown85383 :
Does this tell bikers to stay in the middle of the damn bike lane, instead of riding on the line because it's 'more comfortable'?
I just ride in the middle of my lane on the road rather than to the side or in the bike lane.
Jun 21, 2024 03:26 AM
509 Posts
Joined Jan 2013
2hatsJun 21, 2024 03:26 AM
509 Posts
Quote from OhHim :
Buying a unit without the light attached (which can change flash patterns to alert drivers, and explicitly let you know when the unit is dead by turning off) seems a bit pointless.
You are far better off buying the Garmin unit without the light and spending the money saved on a Cygolite Hypershot 350. It has multiple flash patterns including pseudo-random and is significantly brighter that the Garmin light. This is especially important for daytime use.
1
Jun 21, 2024 04:55 AM
42 Posts
Joined Jan 2019
jed4145Jun 21, 2024 04:55 AM
42 Posts
Got a similar unit with lights on my CD topstone. I had taken a 6 year break from cycling when I moved to Michigan, due to crappy and very high speed roads. I am about to cross 1000 miles with my radar and lights and have a Garmin head unit. Man I love this. It has never let me down and really helps me out on the dirt roads when hardly any traffic comes up behind me. I will never ride without radar again. I like the peace of mind with the lights and often use a camera in case I get hit, but I feel like the radar gives me the most important information to make decisions. I have to trust that no one is out to murder me for riding a bike.
Jun 21, 2024 05:20 AM
2,009 Posts
Joined Jul 2004
mrdeucieJun 21, 2024 05:20 AM
2,009 Posts
Quote from rodge :
Or you can carry an USB charger to charge it. Also I always have one of these in addition to my Varia RTL510: Fenix tail light [fenixlighting.com]. Serves as a backup or a second light. and has runtime of over 50 hours when blinking !
I was carrying a power bank, but didn't have a micro USB cable on me. Had lightning, USB-C, USB mini, but no USB micro. Will carry my spare taillight in the future.
1
Jun 21, 2024 06:32 AM
2,490 Posts
Joined Aug 2018
VioletTent657Jun 21, 2024 06:32 AM
2,490 Posts
Quote from mrdeucie :
I was carrying a power bank, but didn't have a micro USB cable on me. Had lightning, USB-C, USB mini, but no USB micro. Will carry my spare taillight in the future.
But all bike accessories are micro usb! Seriously though it's annoying.

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Jun 21, 2024 06:42 AM
479 Posts
Joined Apr 2020
FantasticBike3156Jun 21, 2024 06:42 AM
479 Posts
LBS in my area are doing 25% off the camera version ($299 w/ discount) due to recent news of more cyclists getting hit by cars. Have to ask about it, but that's what I've just decided to get. Knowing a car is there is great until they decide to drive right through you because they're drunk. At least mom will have video footage to "sue the pants off them," as she put it.
Jun 21, 2024 10:08 AM
420 Posts
Joined Jan 2005
rodgeJun 21, 2024 10:08 AM
420 Posts
Quote from mrdeucie :
I was carrying a power bank, but didn't have a micro USB cable on me. Had lightning, USB-C, USB mini, but no USB micro. Will carry my spare taillight in the future.
You can get micro USB to usb-c adapter. Or vice versa too.
Jun 21, 2024 03:28 PM
2,391 Posts
Joined Oct 2005
ValueAmericaJun 21, 2024 03:28 PM
2,391 Posts
How many seconds of heads-up does this alert give you against a car/truck going at 45-50-60mph?

Is there something similar for motorcycles?
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Jun 21, 2024 03:39 PM
18,217 Posts
Joined Jun 2012
jeff34270
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This user is an Expert in Home & Home Improvement
Jun 21, 2024 03:39 PM
18,217 Posts
Quote from pkp413 :
How many seconds of heads-up does this alert give you against a car/truck going at 45-50-60mph?
Plenty. Sorry I don't have an exact answer, but when it bleeps it shows the relative position of the vehicle and how quickly it is approaching. In my experience, this has always been plenty of warning time and, depending on the vehicle's speed, I can even wait a bit and dodge a few more potholes before having to move over.
Jun 21, 2024 04:07 PM
2,391 Posts
Joined Oct 2005
ValueAmericaJun 21, 2024 04:07 PM
2,391 Posts
~7@45mph, 6@50mph, 5@60mph heads up.
https://www.timecalculator.net/sp...calculator

Quote from jeff34270 :
Plenty. Sorry I don't have an exact answer, but when it bleeps it shows the relative position of the vehicle and how quickly it is approaching. In my experience, this has always been plenty of warning time and, depending on the vehicle's speed, I can even wait a bit and dodge a few more potholes before having to move over.
Expert
This user is an Expert in Home & Home Improvement
Jun 21, 2024 04:29 PM
18,217 Posts
Joined Jun 2012
jeff34270
Expert
This user is an Expert in Home & Home Improvement
Jun 21, 2024 04:29 PM
18,217 Posts
Quote from pkp413 :
~7@45mph, 6@50mph, 5@60mph heads up.
https://www.timecalculator.net/sp...calculator [timecalculator.net]
Thanks for the calculator. On an urban street that I often ride, that's over 30 seconds. On a highway, it's more like 6, which is still more than enough time to react.
Jun 21, 2024 05:04 PM
509 Posts
Joined Jan 2013
2hatsJun 21, 2024 05:04 PM
509 Posts
Quote from jeff34270 :
Thanks for the calculator. On an urban street that I often ride, that's over 30 seconds. On a highway, it's more like 6, which is still more than enough time to react.
The warnings are really good. You get them in plenty of time, like previous poster mentioned you get to see on the display how quickly they are approaching, and you also have visibility whether it's a single vehicle or there are others too. I've had no false alerts and it's never missed a vehicle.

For rural cycling (which I do most of) I use it so I can cycle safely ~2-feet from the side of the road and then when the alert goes off, I decide whether I need to move in in a bit based on width of road, whether there is oncoming traffic, etc.

It's also great for left turns. Without it, you normally look over your shoulder as you're approaching the turn which can cause you to drift out into the road slightly as you do it. Having the radar alerts you to not bother looking over your shoulder, so you can just focus on maintaining a good path until the alert stops, then you double check over your shoulder and pull out safely.

It's one of those things that you don't realize how good it is until you have one. I've cycled for 50 years without one and thought they were just a gimmick. Once I got one, I realized how much safer it makes cycling.

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Jun 21, 2024 05:34 PM
2,391 Posts
Joined Oct 2005
ValueAmericaJun 21, 2024 05:34 PM
2,391 Posts
How do we protect this unit from theft? Do we need additional accessories for that?
1

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