Garmin Varia RVR315 rear radar taillight combines advanced collision detection with integrated lighting to enhance safety during training rides and races. The radar system alerts you to vehicles approaching from behind, while the bright LED taillight ensures visibility in variable conditions. Compact and lightweight, it mounts securely to your seatpost and pairs seamlessly with compatible Garmin devices and third-party cycling computers. Essential for serious cyclists prioritizing situational awareness and accident prevention on open roads.