Knog Cobber Reflex Rear Bike Light
Best high visibility safety light for urban commuters.
This intelligent rear light automatically adjusts its output based on your speed and bike angle, ensuring you are seen exactly when needed. It offers a massive 330-degree beam arc and deep customization, making it a highly effective safety tool for any cyclist.
$79.99
at
Knog (Official US Store)
More Cobber options
Who it's for
- Commuters navigating busy intersections with heavy cross-traffic
- Minimalist riders who want to carry fewer charging cables
- Safety-conscious cyclists wanting backup visibility in all conditions
Who should skip it
- Long-term users concerned about specialized part availability
- Performance road racers with aggressive aerodynamic bike frames
- Endurance cyclists planning multi-hour excursions in total darkness
Performance breakdown
Visibility Coverage
The 330-degree beam arc provides unmatched lateral safety for urban cyclists.
Adaptive Intelligence
Reflex technology intuitively adjusts brightness based on speed and cornering lean.
Weatherproofing
IP67 rating ensures total reliability during the heaviest downpours.
Mounting Versatility
Quick-release system fits aero and standard seatposts with minimal fuss.
Customization Depth
ModeMaker 2.0 software offers granular control over your light patterns.
Battery Efficiency
Solid runtime performance, though high-output modes drain power relatively quickly.
Key Specs
Brightness
250 lumens
Battery Life
70 hours
Water Resistance Rating
IPX7
Light Modes
HIGH, LOW, HYPE, ECO
Power Source
USB Rechargeable
Charging Method
USB-C
Mounting Type
Strap-On
Mounting Location
Bike Frame
Material
Silicone
Light Source Type
LED
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