TL;DR
Get business pricing on garage and car supplies
- Business-only prices and quantity discounts
- Tax-exempt purchasing
- Multiple users, one account, clear invoices
Lezyne has introduced the Radar Pro 300, a rear radar light with an automatic brake-light function, a quarter-turn mount and a replaceable 2,000 mAh battery. Lezyne lists a $179.99 price and claims up to 24 hours of runtime in radar-only mode; real-world battery life and braking detection performance are not established in the source report.
Lezyne has introduced the Radar Pro 300, a rear bicycle radar light that combines vehicle alerts with an automatic brake-light function, a quarter-turn mounting system and a replaceable 2,000 mAh battery. The company lists the light at $179.99, the same price reported for its Radar Drive Rear, and claims up to 24 hours of operation in radar-only mode.
The Radar Pro 300 is described by Bikerumor as a smaller, lighter version of Lezyne’s Radar Drive Rear. Its brake-light feature detects when the rider slows and raises the light’s output in solid or flashing modes, according to the report. The light has seven output modes, including a 300-lumen daytime flash, and Lezyne claims its radar can detect approaching vehicles from up to 150 meters away. The claimed visibility angle is 270 degrees.
A 2,000 mAh battery is rated for up to 24 hours in radar-only mode or up to 20 hours in flash mode. Those are manufacturer figures, not independently verified runtime results. The battery is designed to be replaceable, and the light has an IPX7 waterproof rating and USB-C charging. Lezyne gives the light-only weight as 94 grams; the weight with mount and fittings varies with the seatpost adapter and size.
Riders can connect the light to compatible cycling computers using Bluetooth or ANT+, or use Lezyne’s Radar Ally smartphone app for visual and audio alerts and light-setting controls. It can also pair with the React Drive Front Light, which provides visual radar alerts without a head unit. The new quarter-turn mount is intended for round seatposts and includes adapters for aero and D-shaped posts. Bikerumor reports Lezyne plans to lower the Radar Drive Rear’s price to $149.99, giving buyers two price points; the timing of that change was not specified.
More Choices in Rear Radar Lights
The Pro 300 brings several functions together in one rear light: vehicle detection, brighter braking alerts and a removable mounting interface. For cyclists who already use a compatible computer or Lezyne’s app, radar notifications can add information about traffic approaching from behind. The automatic brake-light feature is intended to make a rider’s slowing more visible, though the source report does not provide independent testing of how reliably it detects braking or how other road users respond.
At the reported $179.99 price, the Pro 300 is positioned alongside the Radar Drive Rear, while the reported planned price reduction for that model would make it a less expensive alternative. The choice may come down to whether a buyer values the Pro 300’s claimed longer radar-mode runtime, replaceable battery, brake-light function and quarter-turn mount. Those features may matter most to riders comparing mounting convenience and charging intervals, not just brightness.
Products Worth Considering
VIOFO A329S 4K+2K+2K Dash Cam Front Cabin and Rear, STARVIS 2 HDR, Wi-Fi 6
Vantrue N4 Pro S 4K 3-Channel Dash Cam with Triple STARVIS 2 HDR
DEWALT 20V MAX XR Impact Driver, 1/4 Inch High Torque Brushless 3-Speed Cordless with LED Light, Extended Runtime (DCF845B)
As an affiliate, we earn on qualifying purchases.
How It Fits Lezyne’s Radar Line
The Radar Pro 300 is the latest product in Lezyne’s Radar React System, according to Bikerumor. It follows the Radar Drive Rear and can work with Lezyne’s React Drive Front Light, while also connecting to compatible third-party cycling computers. The front-light pairing is presented as an option for riders who want radar alerts without relying on a head unit.
The product report describes the Pro 300 as more compact than the Radar Drive Rear and says it adds automatic braking illumination while retaining a similar daytime flash output. Its quarter-turn interface is another change: the light can be attached or removed quickly, with supplied fittings for several seatpost shapes. The source does not provide a launch date or independent comparison testing between the two rear lights.
““Wide-range detection alerts of approaching vehicles from up to 150 meters away.””
— Lezyne, in product specifications reported by Bikerumor
Testing and Availability Details
The source report does not give a release date, shipping schedule or confirmed retail availability. It also does not report independent tests of the 150-meter detection range, brake-sensing behavior, waterproofing or battery life. Actual runtime may vary by selected light mode and use; the published figures are specifications rather than measured results.
The report says the Radar Drive Rear is expected to receive a $149.99 price, but does not state when the reduction will take effect. It also does not clarify whether every cycling computer will support all alerts or controls; compatibility is described for computers that support radar-light notifications over Bluetooth or ANT+.
Retail Timing and Field Tests
Buyers will need to check Lezyne or retailers for availability and shipping information, which were not provided in the source report. The reported Radar Drive Rear price reduction is another pending detail, with no effective date stated. Independent testing could help establish how the automatic brake light responds to different riding conditions and how the claimed battery life and detection range compare with real-world use.
Key Questions
What is the Lezyne Radar Pro 300?
It is a rear bicycle light with vehicle-detection radar, an automatic brake-light function and wireless connections to compatible cycling computers, the Radar Ally app and Lezyne’s React Drive Front Light.
How long does the battery last?
Lezyne’s reported specifications claim up to 24 hours in radar-only mode and up to 20 hours in flash mode. These figures have not been independently tested in the source report.
How much does the Radar Pro 300 cost?
The reported price is $179.99. Bikerumor also says Lezyne plans to reduce the Radar Drive Rear to $149.99, but gives no date for that price change.
Will it fit different seatposts?
The quarter-turn mount is intended for round seatposts and includes aero and D-shaped post adapters. The source lists different assembled weights depending on the mount and adapter used.
When will the light be available?
The source report does not specify a release or shipping date. Check Lezyne or retailers for current availability.
Source: bikerumor.com
