Knog Cobber Reflex Rear Light
Best high visibility safety light for dedicated urban commuters.
This rear light uses intelligent sensors to adjust brightness based on your speed and bike angle, ensuring you're always visible. It offers a massive 330-degree beam arc, making it an excellent choice for commuters who prioritize safety and want a light that adapts to their ride without manual adjustments.
$79.99
at
Knog (Official US Store)
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Knog Big Cobber Front Light
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Knog Cobber Bike Light
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Knog Cobber Reflex Bike Light
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Knog Cobber Bike Light
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Who it's for
- Urban commuters navigating busy intersections with heavy cross-traffic.
- Safety-conscious riders wanting extra protection if the battery runs out.
- Minimalist cyclists who prefer a clutter-free charging setup.
Who should skip it
- Long-distance endurance cyclists who need consistent power for several hours.
- Performance road racers with specialized aerodynamic seatpost geometries.
- Budget-conscious riders looking for basic functionality at a lower price.
Performance breakdown
Visibility Coverage
The 330-degree beam arc provides near-total rear and side awareness.
Adaptive Intelligence
Reflex technology intuitively adjusts output based on speed and bike lean.
Weather Resilience
IP67 rating ensures total protection against heavy rain and road spray.
Mounting Versatility
Quick-release system adapts seamlessly to standard and aero seatpost shapes.
Battery Efficiency
Up to 70 hours of runtime keeps you visible on long rides.
Customization Potential
ModeMaker 2.0 software offers deep control over your preferred light patterns.
Key Specs
Brightness
250 lumens
Water Resistance
IPX7
Mounting Type
Strap-On, Bike Mount
Power Source
USB Rechargeable
Charging Method
USB-C
Light Modes
High, Low, Hype, Eco
Visibility Angle
330 degrees
Battery Life
70 hours
Mounting Location
Bike Frame
Intended Use
Cycling
Know before you buy
Still have a question?
Ask Metto anything about the Knog Cobber Reflex Rear Light before you decide.