How Does The Garmin Varia Bike Radar System Work?

Garmin's new Varia Bike Radar system shows you when cars are approaching. Clever stuff, with potentially great impact on road safety. We took them out for a spin to show you how they work.
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We were really intrigued to have a go with Garmin's Varia system. The idea of being able to see when cars are approaching and when the road is clear sounds good to us.

What are your thoughts? Let us know down in the comments.

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