Knog Big Cobber Rear Light
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Product Information
Full details
The Knog Big Cobber Rear Light is designed for daily commuters and road cyclists who prioritize maximum visibility in traffic. It delivers a powerful 330-degree beam angle to ensure you are seen from the rear and sides, though the long, vertical form factor requires specific seat post clearance to mount effectively.
All features
| Model Part Number | KNG12192 |
|---|---|
| Brand | knog |
Extended Product Information
FAQs
Is the Big Cobber visible from the side?
Yes, it features a 330-degree light spread designed specifically to ensure side-on visibility.
Do I need a cable to charge it?
No, it features an integrated USB-A connector that plugs directly into a charging port.
Can I use this in the rain?
Yes, it has an IP67 rating, meaning it is completely waterproof and suitable for all weather conditions.
How long does the battery last?
Runtime varies by mode, ranging from approximately 2 hours on high-intensity settings to much longer on flashing or energy-saving modes.
Will it fit my aero seat post?
The included silicone straps are designed to accommodate both round and aero-profile seat posts between 22mm and 32mm+.
How do I customize the light modes?
You can use the Knog ModeMaker app on your computer to program and sequence the specific light patterns.
Troubleshooting
Light will not charge
Ensure the integrated USB connector is fully inserted into a powered USB-A port and check that the charging contacts are clean of dirt or debris.
Light is loose on the seat post
Ensure you are using the correct size silicone strap provided in the box and that the hook is fully engaged on the plastic tab.
Cannot change modes
Ensure the unit is not in a locked transport mode and try connecting to the ModeMaker app to refresh the configuration.
Pros and Cons
Pros
- Exceptional 330-degree beam coverage
- Cable-free integrated USB charging
- Fully waterproof design
- Highly customizable via app
- Lightweight (59g)
Cons
- Tall vertical profile may not fit all seat post setups
- Requires USB-A port access for charging
- Max runtime varies significantly by mode
Setup, Compatibility & Care
To install, select the appropriate silicone strap for your seat post diameter and secure it firmly. The light is compatible with both standard round and aero-profile seat posts. To charge, simply pull the light unit from the mount and plug the integrated USB-A connector directly into any USB port or wall charger. Keep the charging contact area clean and dry. To maintain the IP67 waterproof integrity, ensure the light is correctly seated and free of debris that might interfere with the housing seal.