CAR & BIKE
2026.10.01
【Cycling】Identifies vehicles at a constant speed "by size"! Safe riding with built-in taillight rearview radar
When riding a road bike on the road, it's concerning to have cars approaching from behind. With the Garmin "Varia RearVue 820," you can detect vehicles up to 175m behind. It also captures vehicles following at the same speed, enhancing the sense of security during your weekend rides.
Catch cars approaching from behind up to 175m away
Even when you're enjoying a ride on your road bike, hearing the sound of a car approaching from behind can be a bit unsettling... However, if you keep turning your head to check, your attention to what’s ahead can become distracted. Supporting such rear checks is Garmin's "Varia" series. By combining a tail light with a rearview radar, it detects vehicles approaching from behind and notifies compatible Edge series devices, smartphones, and more.
Doesn't miss cars approaching at the same speed
One feature to pay attention to is the "speed tracking feature." It continuously notifies you of vehicles that are traveling behind at the same speed as your bike, which was difficult to capture with previous models. This has made it easier to be aware of cars following closely behind you, especially on narrow roads.
Additionally, detected vehicles are classified into three categories: bike, passenger car, and truck. The corresponding devices display icons, allowing you to confirm not just that "something is coming from behind," but also the size of the vehicle.
Since it also detects lateral movements, it provides reassurance by allowing you to grasp the movements of vehicles changing lanes as they approach. As the danger level is color-coded, it’s reassuring to confirm the situation behind you intuitively.
Additionally, detected vehicles are classified into three categories: bike, passenger car, and truck. The corresponding devices display icons, allowing you to confirm not just that "something is coming from behind," but also the size of the vehicle.
Since it also detects lateral movements, it provides reassurance by allowing you to grasp the movements of vehicles changing lanes as they approach. As the danger level is color-coded, it’s reassuring to confirm the situation behind you intuitively.
Tail light that alerts up to 2km away
Not only has the radar improved, but the quality as a taillight has also increased. Its brightness is visible from up to 2km behind, effectively alerting drivers to its presence even during the day. With a runtime of about 24 hours on Day Flash mode, you can embark on long rides, leaving home early in the morning and returning in the evening, without worrying about battery life.
When braking, the sensor detects deceleration or stopping and alerts following vehicles with its unique flashing, which is an impressive feature. When riding with friends, it can switch to Proton mode, which is not blinding for the rider behind. You can use it with a smartphone that has the free Varia app, making it attractive as it allows you to start using it without needing specialized equipment.
When braking, the sensor detects deceleration or stopping and alerts following vehicles with its unique flashing, which is an impressive feature. When riding with friends, it can switch to Proton mode, which is not blinding for the rider behind. You can use it with a smartphone that has the free Varia app, making it attractive as it allows you to start using it without needing specialized equipment.
With a sense of security on your side, try to go further on your next long ride.
The "Varia RearVue 820" can detect the distance, size, and movement of vehicles approaching from behind. If it becomes easier to check the situation behind you, you may feel a bit more at ease not only on your usual routes but also on new ones you tackle for the first time. With the peace of mind of having what's behind you covered, why not ride farther this autumn than usual?
Product Name / Varia RearVue 820
Price / 46,800 yen
Size / 98.9×25.9×43.2mm
Weight / Approximately 90g
Water Resistance / IPX7
Radar Detection Distance / Up to 175m
Operating Time / Day Flash about 24 hours, Radar only about 30 hours
● Garmin Japan
Product Name / Varia RearVue 820
Price / 46,800 yen
Size / 98.9×25.9×43.2mm
Weight / Approximately 90g
Water Resistance / IPX7
Radar Detection Distance / Up to 175m
Operating Time / Day Flash about 24 hours, Radar only about 30 hours
● Garmin Japan





![[Motorcycle] It suddenly got chilly! Stay warm to your fingertips with the heated gloves equipped with a on/off sensor](https://cdn.clipkit.co/tenants/1046/articles/images/000/034/118/large/1bf81ac2-85d0-4595-8b0c-d2fa7c2e1d5c.png?1790802017)




![[Cassette Gas Type] Heat and "boil water"! Indoor and outdoor usable stove that can hold a kettle](https://cdn.clipkit.co/tenants/1046/articles/images/000/034/075/large/b6e6e45c-9db5-4925-9364-8e7d22ee0790.jpg?1790629213)









![[Interview] Bongo Brownie ✕ VAN LIVING What is the concept of living space that can be enjoyed with simple DIY?](https://cdn.clipkit.co/tenants/1046/articles/images/000/029/348/large/1669c7fe-4dba-4cc5-b0a3-7defa56bc0c0.jpg?1774904732)
FASHION
OUTDOOR
WATCH
CAR & BIKE
SNAP
DINING
LIFE
GADGET
GOLF