Safer towards the sun – thanks to radar technology.

Imagine your bike has an invisible protective shield. That's exactly what RADFLEX® FRR is – a unique bicycle radar reflector specifically designed to reduce the risk of overtaking and collisions. Whether you're riding on country roads or in city traffic, RADFLEX® FRR makes you more easily detectable by modern vehicle radar systems.

Clever design for every bike

RADFLEX® FRR is designed to fit virtually any seatpost (22-32mm diameter) – whether round or aerodynamic (14cm free seatpost required).

Lightweight: At only 35 grams, you hardly add any weight to your bike.

Compact size: The dimensions are only 65 x 80 x 40 mm .

Easy installation: Thanks to the integrated clamp and two attachments for an elastic ring (included), installation is child's play. Make sure the reflector is not obstructed by anything.

Optimal technology: The material and design are specially tailored to vehicle radars in the frequency range of 76-81 GHz .

  • Your advantage: Visibility in any weather – without batteries!

    Darkness, rain, or fog limit visibility. While conventional reflectors rely on incident light, RADFLEX® FRR works regardless of lighting and weather conditions .

    • Always active: Thanks to passive radar reflector technology, RADFLEX® FRR does not require a battery .

    • Clear communication: The vehicle radar can continuously detect your position and speed.

    • Fewer near misses: The system helps reduce dangerous situations and collisions.
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This is how it works – simple and ingenious:

Modern cars are often equipped with radar sensors that measure the distance to objects ahead and can warn the driver if they are inattentive. RADFLEX® FRR uses this technology in the following ways:

  • Visible to vehicle radar: The reflector reflects the radar waves emitted by the vehicle back to the vehicle radar system.

  • Triggering a warning: The vehicle radar detects you early, from a distance of 200m, even if the driver does not yet have you in his sight.

  • Increased safety: In an emergency, the vehicle can react using its radar technology and associated driver assistance systems, thus reducing the risk of an accident.