Radar React System

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 our 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. 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 SPECS: RADAR DRIVE REAR SPECS: Max Lumens: 300 Max Runtime: 20 hours Weight: 122g Dimensions: 78mm, 48.9mm, 47.6mm REACT DRIVE FRONT SPECS: Max Lumens: 1200 Max Runtime: 70 hours Weight: 156g Dimensions: 89.8mm, 42mm, 35.5mm