The Lezyne Radar React System brings radar-based vehicle detection to a premium front and rear bike light set, alerting riders to approaching traffic in real time.

Lezyne Radar React System - LED Front & Rear Bike Light Set With Radar Alerts
Lezyne upgraded radar-based vehicle detection for cyclists with the Lezyne Radar React System — a solution designed to enhance both bicycle safety and visibility on the road.

This advanced system integrates radar technology into our industry-leading LED front and rear bike light set. Riders can now receive audio and visual alerts through multiple devices:

• Lezyne Radar Ally smartphone app
• Compatible GPS bike computers, or
• Directly via the React Drive front bike light.

The Radar Drive pairs with the React Drive to complete the Radar React System. Rear-facing LED indicators and audible alerts are custom-built into the React Drive, providing real-time notifications of rear-approaching vehicles—no smartphone or third-party device required.

This all-in-one system delivers TOTAL VISIBILITY: radar-based vehicle detection, disruptive daytime flash patterns, and up to 1200 lumens up front for effective night riding. All of this is backed by exceptional R&D, in-house manufacturing, and premium features like IPX7 waterproofing and USB-C charging.

Welcome to the future of bicycle visibility: activate your Cycling Sixth Sense.

Note: A smartphone is required for the initial pairing of the system. More information can be found in the Radar React Drive Setup Guide.

Features

• Advanced LED front and rear bike light system with Radar technology
• Includes Radar Drive rear and React Drive front light
• Custom programmed wireless system
• Lights wirelessly pair together
• Built-in vehicle detection alerts
• Use with Radar Ally phone app
• Manually control both lights through app
• Connects to compatible GPS bike computers
• Premium LED technology, optics and lenses
• React Drive features built in visual and audio alerts
• IPX7 Waterproof with USB-C charging ports
• Front: Max 1200 lumens / 70 hours runtime
• Rear: Max 300 lumens / 20 hours runtime
• Warranty: 1 year

Specifications: Rear Radar Light

• Max Lumens: 300
• Max Runtime: 20 hours
• Weight: 144g
• Dimensions: 78mm x 48.9mm x 47.6mm

Specifications: React Drive Front Light

• Max Lumens: 1200
• Max Runtime: 70 hours
• Weight: 162g
• Dimensions: 89.8mm x 42mm x 35.5mm