Lezyne Radar React System Front & Rear Lightset

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.

Note: A smartphone is required for the initial pairing of the system.

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 design with USB-C charging ports

Front: Max 1200 lumens / 70 hours runtime

Rear: Max 300 lumens / 20 hours runtime

Spec-

The most advanced front and rear bike light system with Radar technology

Includes Radar Drive taillight and React Drive Front light

Custom programmed wireless system connects both lights and features advanced radar vehicle detection

Connects to Lezyne Radar App, Multiple Ant+ & Bluetooth head units and React Drive Front

Features Lezyne premier LED technology, optics and lenses

Manually control both lights through Radar App

React Drive Front features built in LED indicators that alert of approaching vehicles from behind when connected to Radar Drive

IPX7 waterproof design with USB-C charging ports

React Front - Max 1200 lumens / 70 hours runtime in Day Flash mode - Machined aluminium body / versatile mounting strap - Specs: L 89.8mm x W 42mm x H 35.5mm, Weight: 156g

Radar Rear - Max 300 lumens / 20 hours runtime in Flash mode Co-moulded construction / Wide Angle Optics - 270° of visibility Specs: L 78mm x W 48.9mm x H 47.6mm, Weight: 144g

Front Light-

Max Lumens: 1200

Max Runtime: 70 hours

Recharge Type: USB-C

Features: IPX7, Daytime Flash

Rear Light-

Max Lumens: 300

Max Runtime: 20 hours

Recharge Type: USB-C

Features: IPX7, Daytime Flash