Garmin Varia RTL511 Rearview Bike Radar Rear Light

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  • Description
  • Fact Sheet
  • Ratings (3)

Description of Garmin Varia RTL511 Rearview Bike Radar Rear Light

Varia RTL511 - See and be seen, day or night

  • Provides visual and audible alerts to warn of vehicles approaching from behind up to 140 metres (153 yards) away
  • Tail light offers daylight visibility up to a 1.6 km (1 mile) away and is visible within a 220-degree range, so drivers can see you well before the radar sees the vehicle
  • Sleek vertical design easily mounts to most road-use bicycles, including racing, touring and commuter styles
  • Requires a dedicated radar display unit or wirelessly integrates with compatible Garmin devices
  • Battery life: up to 10 hours

Ride smarter and more aware with Varia™ RTL511 rear-view radar. Mounted neatly on the seat post, it provides visible and audible alerts for vehicles approaching from behind up to 140 metres (153 yards) away. Plus, the bright tail light is visible in daylight from up to 1.6 km (1 mile) away, so you can ride with confidence and security.

This sensor has your back
When out on a ride, you have to keep track of everything. What’s your route, how far you're going, how fast and how hard you're going to push it. But the most important thing to keep track of is your safety. And while having eyes in the back of your helmet might be a bit unrealistic, think of Varia as just that. This radar is like an early warning system that helps create safer cycling environments.

Safety in numbers
Varia™ RTL511 rear-view radar is just one part of cycling awareness. When paired with compatible Garmin devices the system helps to create safer riding conditions by alerting riders to vehicles approaching from behind. Green light? All good. Amber light? A vehicle is approaching. Red light? Take care — a vehicle is approaching at high speed. Ride safe.

Specifications of the Garmin Varia RTL511

Physical & Performance
  • Dimensions: 98.6 x 19.7 x 39.6 mm
  • Weight: 71 g
  • Modes: solid
  • Lumens: 7 solid
  • Battery life: up to 10 hours solid
  • ANT+®
  • Water rating: IPX7
  • Viewing angle: 220°

Compatible Devices
  • Edge® 1030
  • Edge® 1000
  • Edge® 130
  • Edge® 25
  • Edge® 510
  • Edge® 520 / 520 Plus
  • Edge® 820
  • Edge® Explore 1000
  • Edge® Explore 820
  • fēnix® 5 / 5S / 5X
  • fēnix® Chronos
  • Forerunner® 735XT
  • Forerunner® 935
  • vívoactive® 3
  • vívoactive® HR
  • Varia Vision™ In-sight Display
  • Description
  • Fact Sheet
  • Ratings (3)

Fact Sheet of Garmin Varia RTL511 Rearview Bike Radar Rear Light

Product Name: Garmin Varia RTL511 Rearview Bike Radar Rear Light
Manufacturer: Garmin
Item Code: GAR376994
Year: 2019
Manufacturer item code: 010-01974-00
Weight: approx. 71 gram (manufacturer information)
Included in delivery:
  • Varia RTL 511
  • seat-post quarter-turn mount
  • Charging/data microUSB™ cable
  • manuals
How to mount: seatpost
StVZO (Germany) approved: German StVZO approved only for road bikes up to 11 kg
Dimensions: 98,6 x 19,7 x 39,6 mm
Manufacturer page:
  • Description
  • Fact Sheet
  • Ratings (3)


(3 Ratings)
Rate this product
Customer Reviews
Not working modes: night flash, day flash, only 7 lumen solid (low brightness mode)
Radar work well

Bike24: Thank your for your product review.

You are right, this version does only offer 1 mode which is constant light. Only this version complies with the German road traffic regulations. Our product description has been updated to reflect this.
Ich fühle mich seit dem ich das Gerät habe sicherer auf der Straße. Man es immer darüber informiert was in deinem Rücken passiert.
Sehr begeistert
Gibt einem beim radeln einfach ein besseres Gefühl. Piepst manchmal auch falsch, aber besser einmal zu viel als zu wenig.
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