Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Radar React SystemLezyne upgraded radar based vehicle detection for cyclists with the Lezyne Radar React Systema 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 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 Drive
Lezyne upgraded radar-based vehicle detection for cyclists with the Lezyne Radar React 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 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 Drive front bike light.
The Radar Drive pairs with the React Drive to complete the Radar React System. Rear-facing LED indicators and audible alerts are custom-built into the React Drive, 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, disruptive daytime flash patterns, and up to 1200 lumens up front for effective night riding.
All of this is backed by our exceptional R&D, in-house manufacturing, and premium features like IPX7 waterproofing and USB-C charging.
Welcome to the future of bicycle visibility: activate your Cycling Sixth Sense.
FEATURES:
- Advanced LED front and rear bike light system with Radar technology
- Includes Radar Drive rear and React Drive 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 LED technology, optics and lenses
- React Drive features built in visual and audio alerts
- IPX7 Waterproof with USB-C charging ports
- Front: Max 1200 lumens / 70 hours runtime
- Rear: Max 300 lumens / 20 hours runtime
SPECS:
-
RADAR DRIVE REAR SPECS:
- Max Lumens: 300
- Max Runtime: 20 hours
- Weight: 122g
- Dimensions: 78mm, 48.9mm, 47.6mm
-
REACT DRIVE FRONT SPECS:
- Max Lumens: 1200
- Max Runtime: 70 hours
- Weight: 156g
- Dimensions: 89.8mm, 42mm, 35.5mm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1926 reviews
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Product Reviews
★★★★★ 4
Amazing socks but false advertising. They changed them.
Size: Large, Color: Black (6-pairs)
Okay well I have 4 stars because these are the best socks ever, infact, I threw out all my other socks and switched to just these. No show and they never slip. THE PROBLEM NOW, all the pairs I ordered before had a white symbol, and every time I buy more they have the grey and they are not as low show as my others… I wanted to simplify life and have all the same kind, no matching of colors or slightly different shape, but 4 times now I’ve ordered white symbol and gotten thicker longer ones with gray symbols. I’m considering switching all of my socks to the gray…. But the white symbol ones are way better, they don’t show with hey dudes on and gray symbol ones do now. I’m at a loss. Can someone tell me where to buy 100 pairs of white symbol so I never need to buy another sock again in my life?
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Reviewed in the United States on January 24, 2025
★★★★★ 5
My favorite
Size: Medium, Color: Opal Blue/White/Cruise Blue (3-pairs)
My favorite socks, too bad under armour discontinued the cotton blend fabric and went to 100% polyester 😠
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Comfortable
Size: 6-10, Color: Halo Gray/Assorted
These are my favorite socks!
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Great fit
Size: Medium, Color: White
Perfect fit and they don't slide off the back of your ankle.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Best socks!
Size: Medium, Color: Blue
I love these socks! They last for years and they fit so nicely on my feet. I love that I can wear the in tennis shoes or wool boots and they never move!
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Reviewed in the United States on October 21, 2025