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Lezyne has introduced the Radar Pro 300, a rear radar light with an automatic brake-light function, a 2,000 mAh replaceable battery and a quarter-turn mount. The company lists a $179.99 price, up to 24 hours of runtime in radar-only mode and vehicle detection up to 150 meters; those performance figures are manufacturer claims.
Lezyne has announced the Radar Pro 300, a rear bicycle radar light that combines vehicle alerts with an automatic brake-light function, a replaceable 2,000 mAh battery and a new quarter-turn mount. The company lists the light at $179.99, the same price reported for its Radar Drive Rear, giving riders a second option in Lezyne’s radar-light range.
The Radar Pro 300 is a smaller, lighter model than the Radar Drive Rear, according to Lezyne and the Bikerumor report. Its 300-lumen daytime flash mode and 270-degree visibility are among its listed lighting features. Lezyne says its radar can detect approaching vehicles from up to 150 meters away. That range is a manufacturer specification, not an independently verified result in the source material.
The new light senses when the rider slows and automatically increases its output in either steady or flashing modes, the report says. Lezyne also says its flash feature can activate when braking or when vehicles are detected. The light has seven output modes and can connect to compatible cycling computers using Bluetooth or ANT+. Riders can also pair it with Lezyne’s Radar Ally smartphone app, which offers visual and audio alerts and controls for customizing light modes and alerts.
Lezyne lists a 2,000 mAh battery with maximum runtimes of 24 hours in radar-only mode and up to 20 hours in flash mode. Runtime will depend on the selected settings, and the figures are company claims. The battery is designed to be replaceable. The unit is rated IPX7 waterproof, charges through USB-C and weighs 94 grams for the light alone. The mount and adapters add weight, with listed setups starting at 108.2 grams for the light, mount and O-ring.
The quarter-turn mount is intended to make installation and removal quicker. Lezyne says it fits round seatposts and includes adapters for aero and D-shaped posts; the report also describes compatibility with most quarter-turn mounts. The light can be bought on its own or paired with Lezyne’s React Drive Front Light, which provides visual radar notifications without requiring a cycling computer.
Radar Alerts Without a Head Unit
The Pro 300 combines rear vehicle detection with a light that reacts to braking, bringing two kinds of visibility features into one unit. For riders who use radar alerts but do not ride with a compatible cycling computer, the option to pair it with the React Drive Front Light or use the Radar Ally app offers other ways to receive alerts. Those features may make radar easier to use across different setups, though the source does not establish how well the alerts perform in real-world riding.
Battery capacity and mounting also affect everyday use. A replaceable battery may offer a way to keep the light in service if the battery wears down, while the quarter-turn interface could make moving it between compatible mounts more convenient. These are practical distinctions for riders comparing radar lights, but the reported specifications alone do not show how the model compares in independent testing.
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A Second Lezyne Radar Option
The Radar Pro 300 joins Lezyne’s Radar React System and is positioned as a smaller alternative to the Radar Drive Rear. The product report says Lezyne will lower the Radar Drive Rear’s price to $149.99, compared with $179.99 for the Pro 300. That would leave buyers choosing between the older model at a lower price and the new unit’s reported brake-light feature, compact design and updated mounting interface.
The system supports alerts through compatible ANT+ cycling computers and Bluetooth connections, as well as the Radar Ally app. Lezyne also offers the React Drive Front Light as a way to display radar notifications without a head unit. These are distinct setup options; the source does not say that every feature or alert works identically across all devices.
“The radar can detect approaching vehicles from up to 150 meters away.”
— Lezyne, as reported by Bikerumor
Testing, Availability and Final Pricing
The source report does not give a release date, shipping schedule or details about which retailers will carry the Radar Pro 300. It also does not provide independent testing of the claimed 150-meter detection range, braking response, visibility or battery life. The listed runtimes are maximum figures for specified modes, not a guarantee of performance under every use pattern.
It is also unclear whether the Radar Drive Rear price reduction has taken effect, when it will begin, or whether the $179.99 Pro 300 price will vary by market. The report describes compatibility with cycling computers and quarter-turn mounts, but does not provide a complete list of supported devices or mount combinations.
Availability and Ride Testing
Lezyne’s product page or retailer listings should provide availability and purchase details when those are announced. Riders comparing the Pro 300 with the Radar Drive Rear can check current prices and confirm compatibility with their cycling computer, app and seatpost before buying. Further testing would be needed to establish how the company’s range, runtime and automatic braking claims hold up in varied riding conditions.
Key Questions
How much does the Lezyne Radar Pro 300 cost?
The source report lists a price of $179.99. It does not provide a release date or confirm whether the price is available in all markets.
How long does the battery last?
Lezyne lists a maximum of 24 hours in radar-only mode and up to 20 hours in flash mode. These are company specifications, and actual runtime depends on settings and use.
Does the Radar Pro 300 work without a cycling computer?
It can connect to Lezyne’s Radar Ally app for visual and audio alerts. The product report also says it can pair with the React Drive Front Light to provide visual radar notifications without a head unit.
What does the automatic brake-light feature do?
The light senses when the rider slows and increases its output in steady or flashing modes, according to the report. Lezyne also lists flashing activation when braking or when vehicles are detected.
Can the battery be replaced?
Yes. The product report says the 2,000 mAh battery has a replaceable design. It does not give instructions, service requirements or replacement-part pricing.
Source: bikerumor.com
