• Advanced front and rear StVZO LED bike light system with Radar technology.
• Includes Radar StVZO Rear and React StVZO 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 StVZO compliant LED technology, optics and lenses.
• React StVZO Front features built in visual and audio alerts.
• IPX7 Waterproof with USB-C charging ports.
• Front: Max 600 lumens / 17 hours runtime.
• Rear: Max 40 lumens / 9 hours runtime.

Lezyne has redefined radar-based vehicle detection for cyclists with the Lezyne Radar React StVZO 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 StVZO 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 StVZO Front bike light. 

The Radar StVZO Rear pairs with the React StVZO Front to complete the Radar React StVZO System. Rear-facing LED indicators and audible alerts are custom-built into the React StVZO Front, 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, additional daytime visibility, and up to 600 lumens up front for effective night riding capabilities.

The system was developed though exceptional R&D and in-house manufacturing, and offers premium features like IPX7 waterproofing and USB-C charging.

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