Cannondale SmartSense Garmin Varia Rearview Radar eRDU

Cannondale SmartSense Garmin Varia Rearview Radar – eRDU

The Cannondale SmartSense Garmin Varia Rearview Radar (eRDU) dramatically improves rider awareness by detecting approaching vehicles from behind and alerting the rider in real time. Designed specifically for Cannondale SmartSense and compatible e-bike platforms, this radar integrates seamlessly with SmartSense-powered lighting systems and Garmin head units.

Whether you’re riding busy roads or remote gravel routes, the Garmin Varia radar adds an essential layer of safety by providing early warnings of approaching traffic—without adding clutter or external batteries.

What It’s Built For

• Cannondale SmartSense-equipped bicycles
• Compatible e-bikes using Hindsite / Foresite lighting systems

Features & Benefits

• Rear-facing Garmin Varia radar detection
• Detects approaching vehicles from behind
• Provides visual and audible alerts to the rider
• Wirelessly integrates with compatible Garmin cycling computers
• Compatible with dedicated Garmin radar display units
• Designed for clean SmartSense system integration
• No external battery required when used with SmartSense

Specifications

• Radar Type: Garmin Varia Rearview Radar (eRDU)
• Power Source: SmartSense system or compatible e-bike system
• Connectivity: Wireless (ANT+/Bluetooth via Garmin ecosystem)
• Mount Included: No
• Manufacturer Part Number (MPN): CP1512U10OS

Compatibility Notes

• Requires SmartSense system or compatible e-bike power source
• Requires a dedicated radar display unit or compatible Garmin head unit
• Compatible with Cannondale Hindsite / Foresite e-bike lights
• Mounting hardware sold separately
• Not compatible with non-SmartSense or non-powered systems

OEM Bike Compatibility

• Synapse Carbon (2022–2024)
• Topstone Carbon (2022)

Recommended Use

• SmartSense system upgrade
• OEM replacement radar unit
• Safety enhancement for road and gravel riding

Why Buy OEM?

Using genuine Cannondale SmartSense components ensures:

• Full system compatibility and reliability
• Accurate radar detection and alerts
• Clean, factory-correct integration
• Maximum rider safety and confidence

The Cannondale SmartSense Garmin Varia Rearview Radar is an essential safety upgrade for riders who want real-time traffic awareness with seamless SmartSense integration—helping you ride smarter, safer, and more confidently.