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Lezyne has announced the Radar Pro 300, a rear radar light with an automatic brake-light feature, 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 claims of up to 150 meters; real-world performance and availability details were not provided in the source report.
Lezyne has announced the Radar Pro 300, a rear bicycle light that combines radar-based vehicle alerts with an automatic brake-light function, a replaceable 2,000 mAh battery and a quarter-turn mounting system. The company lists the light at $179.99, the same price the source report gives for the Radar Drive Rear before that model’s planned price reduction.
The Radar Pro 300 is described by Bikerumor as a smaller, lighter version of Lezyne’s Radar Drive Rear. It has a claimed weight of 94 grams for the light alone; the light, mount and O-ring weigh from 108.2 grams, depending on mount size. Lezyne lists seven output modes, including a 300-lumen daytime flash mode and 270-degree visibility.
Lezyne says its radar can detect approaching vehicles from up to 150 meters. The automatic brake-light feature senses when the rider slows and increases brightness in steady or flashing modes, according to the product details. The light can connect to compatible cycling computers over Bluetooth or ANT+, or to Lezyne’s Radar Ally app for visual and audio alerts and light-setting controls.
The stated battery capacity is 2,000 mAh. Lezyne lists a maximum runtime of 24 hours in radar-only mode and up to 20 hours in flash mode. The unit is rated IPX7 waterproof, charges over USB-C and has a replaceable battery design. Its new quarter-turn mount is intended for round seatposts and comes with adapters for aero and D-shaped posts; Bikerumor says the light is also compatible with most quarter-turn mounts.
More Choice in Rear Radar Lights
The Radar Pro 300 adds a braking alert and replaceable battery to a rear light that also warns riders about approaching traffic. For cyclists who already use radar alerts, the added brake response and quarter-turn attachment may make the unit easier to fit into an existing setup, although the source does not provide independent testing of either feature.
Its listed $179.99 price sits alongside a planned reduction in the price of the Radar Drive Rear to $149.99, according to Bikerumor. That gives buyers two Lezyne rear-radar options at different prices, rather than a simple replacement at the same price. Riders will need to weigh the Pro 300’s added features against the older model’s lower planned cost.
The light’s alerts can be delivered through a compatible cycling computer or Lezyne’s phone app. Lezyne also says the Pro 300 can pair with the React Drive Front Light, which displays radar notifications without requiring a head unit. The available report does not establish how reliably these systems perform in different traffic, road or weather conditions.
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How It Fits Lezyne’s Radar Line
Lezyne presents the Radar Pro 300 as part of its Radar React System and as a more compact counterpart to the Radar Drive Rear. The product combines a rear light with radar alerts, rather than relying solely on a rider noticing a vehicle approaching from behind. Its connections to compatible head units and the Radar Ally app provide different ways to receive those alerts.
Bikerumor reports that the Radar Drive Rear is expected to receive a price reduction to $149.99, while the Radar Pro 300 is listed at $179.99. The article says the new light adds the brake-light function and a different mount while offering longer maximum battery life. The source does not give a date for the price change or provide a full side-by-side test of the two products.
The replaceable battery is presented as part of the product’s design under the EU Batteries Regulation, identified in the product details as regulation 2023/1542. The report says the battery can be replaced if it wears out, but does not describe the replacement process, battery availability or service costs.
“Wide-range detection alerts of approaching vehicles from up to 150 meters away.”
— Lezyne product specifications, as reported by Bikerumor
Testing and Release Details Pending
The source report gives manufacturer specifications and claims, but does not include independent testing of vehicle-detection distance, braking sensitivity, visibility, battery life or waterproofing. Actual performance may depend on setup and conditions; the source does not provide test results that would establish how the light behaves across those variables.
The report also does not specify when the Radar Pro 300 will be available, which markets will receive it first, or whether the $179.99 price applies in every region. Details about battery replacement, including cost and who can perform it, are not included. The planned Radar Drive Rear price change is reported without an effective date.
Availability and Pricing to Watch
Lezyne’s next relevant updates would be availability, regional pricing and retailer listings for the Radar Pro 300, along with the timing of the Radar Drive Rear’s planned $149.99 price. Buyers comparing the models should check current listings because the source report does not give a release date or confirm when the older unit’s price will change.
More information from Lezyne or independent product testing could clarify the practical detection range, braking response and runtime in everyday use. Until then, the 150-meter detection range and maximum battery figures should be treated as stated specifications, not as results confirmed by the report.
Key Questions
What is the Lezyne Radar Pro 300?
It is a rear bicycle light with radar-based vehicle alerts and an automatic brake-light feature. Lezyne says it can connect to compatible cycling computers, its Radar Ally app and the React Drive Front Light.
How much does the Radar Pro 300 cost?
The source report lists a price of $179.99. It does not specify a release date or confirm whether that price applies in all markets.
How long does its battery last?
Lezyne lists up to 24 hours in radar-only mode and up to 20 hours in flash mode. These are stated maximum runtimes; the source report does not provide independent battery testing.
Can the battery be replaced?
Yes. The product details describe a replaceable battery design, but the report does not explain the replacement process, cost or service options.
How does the light mount to a bike?
It includes a quarter-turn mount for round seatposts and adapters for aero and D-shaped posts. Bikerumor also reports compatibility with most quarter-turn mounts.
Source: bikerumor.com
