Lezyne Radar React System Front and Back Light Set

Radar-Integrated Front and Rear Light Set for Total Road Visibility The Lezyne Radar React System pairs the React Drive front light with the Radar Drive rear light into a custom-programmed wireless unit built around real-time vehicle detection. The Radar Drive detects rear-approaching vehicles from up to 150 meters away and instantly communicates with the React Drive, triggering rear-facing LED indicators and audible alerts directly on the front light—no smartphone, GPS computer, or third-party device required after initial setup. The result is a self-contained safety system that keeps riders aware of closing traffic without adding anything to their cockpit. Out front, the React Drive delivers up to 1,200 lumens for powerful night riding alongside disruptive daytime flash patterns that cut through ambient light. Both lights are IPX7 waterproof, USB-C rechargeable, and built with Lezyne's precision-engineered optics and in-house manufacturing standards. For riders who want more control, the Radar Ally app allows full customization of alert settings, light modes, and firmware updates, and the system also connects to compatible GPS bike computers. Awareness Built Into Every Ride Radar Drive rear light detects vehicles approaching from behind at up to 150 meters and triggers automatic alert flash mode. React Drive front light features built-in rear-facing LEDs and audio alerts that activate when the Radar Drive detects a vehicle—no phone or GPS computer needed. Custom-programmed wireless pairing between front and rear lights works as a complete, self-contained system. React Drive outputs up to 1,200 lumens with disruptive daytime flash modes for visibility in all conditions. Radar Drive outputs up to 300 lumens for strong rear visibility alongside its radar detection function. Six connection options: React Drive front light, Radar Drive rear light, Radar Ally app, compatible GPS bike computers, or any combination. Radar Ally app enables real-time visual vehicle tracking, alert customization, light control, and firmware updates. React Drive housed in CNC-machined aluminum; Radar Drive features co-molded construction—both built for long-term reliability. Both lights are IPX7 waterproof rated and charge via USB-C. Compatible with Lezyne's Infinite Light Power Pack+ for extended runtime. Rugged, versatile strap mounts fit a wide range of handlebar and seatpost diameters. Details Includes: React Drive front light + Radar Drive rear light Front output: Max 1,200 lumens / up to 70 hours runtime Rear output: Max 300 lumens / up to 20 hours runtime Radar detection range: Up to 150 meters Front construction: CNC-machined aluminum, IPX7 waterproof Rear construction: Co-molded, IPX7 waterproof Charging: USB-C (cable not included) App: Lezyne Radar Ally (iOS and Android) GPS compatibility: Pairs with compatible GPS bike computers Power Pack compatible: Yes, Infinite Light Power Pack+ Initial setup: Requires Radar Ally app for first pairing