Big Cobber Rear Bike Light

270 Lumens
$101.24
$134.99 AUD

The Big Cobber Rear Bike Light produces an incredible 330° of light, so you’ll be clearly seen from behind as well as from both sides. It’s brilliantly effective at attracting attention day and night, making it one of the safest lights you could choose.

The Big Cobber Rear Bike Light produces an incredible 330° of light, so you’ll be clearly seen from behind as well as from both sides. It’s brilliantly effective at attracting attention day and night, making it one of the safest lights you could choose.

FREE DELIVERY 
AVAILABLE
30 DAY 
 RETURNS
2 YEAR 
WARRANTY

18 factories told us Cobber would be impossible. We were happy to prove them wrong.

  • Incredibly bright 270 lumens
  • Up to 100 hr runtime
  • Incredible 330° beam angle
  • Quick mount release
  • Waterproof to 1 metres with an IP67 rating
  • USB rechargeable, cable-free charging
  • Pre-programmed with 8 light modes
  • Customisable modes with Knog's Modemaker app
  • Compatible with standard & aero seat posts
MODE LUMENS RUNTIME
Max
160 2 hrs
Mid 60
3.5 hrs
Steady Pulse 270 2.5 hrs
Flash 270 6.5 hrs
Rolling Flash 110 5.5 hrs
Side Flash 170 2 hrs
Disco Flash 140 5 hrs
Eco Flash 15 100 hrs

Please note products are sent from Melbourne, Australia*. 

Australia
Free standard shipping over A$100
Standard A$8 | Express A$12

New Zealand
Free standard shipping over A$150
Standard International A$20 | Express International A$30

Europe
Free standard shipping over 100
Standard International €15 | Express International €25

Asia + Canada
Free standard shipping over US$100
Standard International US$15 | Express International US$25

United States
Shop at Knog's US store for free and fast delivery. 

United Kingdom
Shop at our UK distributor store.

* International orders may be subject to additional customs and duty charges to be paid by the receiver. Knog has no control or liability here. 

Returns & Exchanges

We stand behind everything we make and want you to be happy. If for any reason you're not satisfied with your purchase, return it within 30-days for a full refund. For more information, please see our Returns & Warranty page.

 

Customer Reviews

Based on 27 reviews
89%
(24)
11%
(3)
0%
(0)
0%
(0)
0%
(0)
M
Maugan Rimmer
Excellent light, Buy one, be Bright

This is an all round superbly designed and sturdy product, all the lumens you need and great visibility from the rear and side. The charge lasts for ages. Essential for rider visibility when winter riding in the dark but it also works well in daytime conditions too. Attaches easily to the seatpost. My only minor gripe is that out of the box it can be a tad difficult to detach the light from the part that attaches to the bike frame, which you need to do to access the USB charger. This does get easier over time with repeated use and technique though. The included USB extender cable is really useful when charging using a laptop/ PC.

C
Chuc
Amazing brightness for alerting anyone behind you without being garish

Some lights just make it hard to see anything and they annoy people - this one is super bright but not "in your face" bright. Love the size and the unmistakable alert it gives out.

F
Fabrice
Top

Excellent !

h
howard jamner
bike light

Big Cobber Rear Bike Light by Knog is the very best bike light out there

R
Ronny Smith
Not perfect yet….

Light seems very good from early use. I would agree with one review I saw, and it stop me from giving 5 stars. It is too hard to attach the light to it’s mount when the mount is on the seat tube, so you end up having to take the mount off the bike to slide the light on the mount, then you have to put the mounted light back on the bike. And, having to do so, I question how will the skimpy silicon straps that hold the mount to the seat post will last. All in all, light seems great, but the mount could use some big improvements.

'Big Cobber is hands down the best bike light for attracting attention from the rear.'

‘Knog’s Cobber is an impressive light with a simple and elegant design.’

- bikeradar

Why you'll love riding with Big Cobber.

The world's only 330 degree rear bike light.

Simple Button

Big Cobber Rear is simple to operate. A long press of the single button will turn the light on and off, and a short press will cycle through the modes. Cobber has a run time of up 100 hours.

Packed With Innovation

Efficient Chip on Board (COB) LEDs provide maximum brightness level for up to 90% of the battery burn time. As well as 8 pre-programmed modes, it’s compatible with Knog's ModeMaker app so you can customize your light modes.

Mount With Ease

Cobber comes with tool-less removable silicone straps for seat posts 22 – 32mm+ diameter and a magnetic mount. Also includes a standard and Aero mount.

Integrated USB Connector

Plug Big Cobber directly into USB-A ports. When your Cobber is running low on battery, a red ring will light up around the button. This ring will turn green and then turn off once the Cobber is fully charged.

Product Video +-

Technical Specifications +-

BULB TYPEChip On Board (COB) LEDs
LIGHT OUTPUT RANGEMax: 270, Eco-Flash: 15
LIGHT MODES8
PROGRAMMABLE WITH MODEMAKERYes
AERO SEAT POST COMPATIBLEYes
LOW BATTERY INDICATORYes
FITS SET POSTS22 – 32mm+ diameter
RUN-TIMEHigh: 100 hrs, Low: 2 hrs
CHARGE TIME5.5 hrs
RECHARGEABLEYes (integrated USB-A connector)
WEIGHT62 g / 2.2 oz
DIMENSIONSH: 22 mm x W: 33 mm x L:93 mm
WATERPROOFYes, IP67 rating
OPERATING TEMP-20 to 50 °C / -4 to 122 °F
STRAP MATERIALMedical grade silicone
OPTIMUM CHARGING TEMP
20 to 22 °C / 68 to 72 °F (Room Temperature)

User Guides +-

Language Download
Cobber Quick Start - English

Customer Reviews

Based on 27 reviews
89%
(24)
11%
(3)
0%
(0)
0%
(0)
0%
(0)
M
Maugan Rimmer
Excellent light, Buy one, be Bright

This is an all round superbly designed and sturdy product, all the lumens you need and great visibility from the rear and side. The charge lasts for ages. Essential for rider visibility when winter riding in the dark but it also works well in daytime conditions too. Attaches easily to the seatpost. My only minor gripe is that out of the box it can be a tad difficult to detach the light from the part that attaches to the bike frame, which you need to do to access the USB charger. This does get easier over time with repeated use and technique though. The included USB extender cable is really useful when charging using a laptop/ PC.

C
Chuc
Amazing brightness for alerting anyone behind you without being garish

Some lights just make it hard to see anything and they annoy people - this one is super bright but not "in your face" bright. Love the size and the unmistakable alert it gives out.

F
Fabrice
Top

Excellent !

h
howard jamner
bike light

Big Cobber Rear Bike Light by Knog is the very best bike light out there

R
Ronny Smith
Not perfect yet….

Light seems very good from early use. I would agree with one review I saw, and it stop me from giving 5 stars. It is too hard to attach the light to it’s mount when the mount is on the seat tube, so you end up having to take the mount off the bike to slide the light on the mount, then you have to put the mounted light back on the bike. And, having to do so, I question how will the skimpy silicon straps that hold the mount to the seat post will last. All in all, light seems great, but the mount could use some big improvements.

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