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phoinix 16.6K Views
Sep 27, 2025 7:08 AM

$149.99*: Garmin Varia Cycling Rearview Radar w/ Tail Light (RTL515) at Amazon

$150

$200

25% off
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Amazon [amazon.com] has Garmin Varia Cycling Rearview Radar w/ Tail Light (RTL515) for $149.99.
Shipping is free.

Price
$50 lower (25% savings) than the list price of $199.99

*Deal history:

1,000+ bought in past month

amazon.com/dp/B086TVFX1D [amazon.com]

My other deals

#pfpd
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Deal Details
Community Notes
About the Poster
Amazon [amazon.com] has Garmin Varia Cycling Rearview Radar w/ Tail Light (RTL515) for $149.99.
Shipping is free.

Price
$50 lower (25% savings) than the list price of $199.99

*Deal history:

1,000+ bought in past month

amazon.com/dp/B086TVFX1D [amazon.com]

My other deals

#pfpd

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Community Reviews

Garmin's Varia RTL515 rear radar and tail light is valued for giving early warning of approaching cars and adding peace of mind on road rides, especially when paired with a phone or compatible Garmin head unit for visual and audio alerts. The light can also change flashing behavior when braking, and the battery is described as lasting hundreds of miles between charges. The main drawbacks are its micro-USB port, which feels dated and awkward with the waterproof flap, and compatibility limits with older bike computers. It is a strong safety aid for riders who want extra awareness without relying on it alone.

  • The device can detect cars from far behind, which helps riders spot approaching vehicles early for planning.

  • Using a phone on the handlebar with RideWithGPS can reduce the need to look at the radar display while riding.

  • The radar plus tail light setup can provide audio cues and adjust flashing behavior for better visibility when braking.

  • Mounting the radar on a saddle bag can still work well, with false negatives reportedly occurring very rarely.

  • The charging port is micro-USB rather than USB-C, which can create inconvenience and may require adapters that interfere with the waterproof flap.

  • The radar information may feel not very actionable, and it may not meaningfully increase safety compared with using mirrors.

  • Compatibility can be limited, since the radar reportedly does not work with an Edge 810 and may require a newer head unit.

  • Mounting the unit on the outside of a helmet can increase snag risk during a crash, so breakaway mounting is recommended instead.

Common Questions (5)

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33 Comments

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Oct 3, 2025 3:28 PM
1.7K Comments
Joined Nov 2008
bsdcOct 3, 2025 3:28 PM
1.7K Comments
someone suggested mounting on helmet, and I advise against that, at least mounting it on the outside, and also against mounting anything on (the outside) of your helmet, as that has the chance to catch on the ground when you crash, causing your head to abruptly jerk/twist/etc, causing severe neck injury. the only exception, I guess, is if it is mounted in a way that it can breakaway extremely easily, but I would not mount anything that has any significant value in such a way.
Oct 4, 2025 11:11 PM
48 Comments
Joined Jul 2018
PurplePolice6405Oct 4, 2025 11:11 PM
48 Comments
Does anyone who have this know if this will identify other riders coming up behind you as well, or just cars? I assume not if it's radar. If not, is anyone aware of something that works for this?
Oct 7, 2025 4:00 PM
139 Comments
Joined Apr 2009
joesternOct 7, 2025 4:00 PM
139 Comments
Ordered one before I realized it isn't USB-C.

Might need to return this thing. Pathetic.

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