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Lezyne unveils new Radar Pro 300 tail light, with brake-light function

Published October 27, 2026

SAN LUIS OBISPO, Calif. (BRAIN) — Lezyne has announced the release of the Radar Pro 300, the newest edition to the brand's Radar React System. The upgraded device introduces an integrated brake-light function. When slowing down, the taillight automatically increases its lumen output.

Lezyne says the Radar Pro 300 offers vehicle detection from up to 150 meters away, alongside a high-output 300-lumen Day Flash mode. The system integrates into  cycling setups, pairing via ANT+ to compatible cycling computers, synchronizing directly with Lezyne's React Drive Front light (also available as a pair), or connecting to the Radar Ally smartphone app. Through the Radar Ally app, riders can also now customize output modes and alerts.

The Radar Pro 300 debuts a refined form factor with a new quarter-turn mounting interface. The light includes two adapters, one for D-shape posts and one for aero seatposts. It's housed in an industrial-grade composite body with an IPX7 waterproof rating.

Further upgrades include a high-capacity rechargeable battery providing up to 24 hours of runtime, supported by USB-C charging. The product was developed, programmed, and built entirely in-house by Lezyne.

"We're so stoked with how our new Radar Pro 300 turned out with its improved visibility and awareness features," said Colton Arbuckle, Lezyne's Mechanical and Product Engineer. "We combined our advanced vehicle tracking with an intelligent brake light function into one device. We also upgraded it with a quick-twist quarter-turn mount and a longer-lasting battery, all with a fresh, modern design."

MSRP: $179.99. More information: ride.lezyne.com/products/radar-pro-300.