Sorry, this product is no longer available!
Knog Mid Cobber Rechargeable Rear Bike Light is no longer available at Merlin Cycles. However you may find an alternative or updated product below.
Knog Cobber Mid Rear Bike Light
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Knog Cobber Mid Rear Bike Light

This item was discontinued 28th July 2023.

If you require help finding an alternative to this product please contact customer services.

Code:: KNOG-121RE
Knog Mid Cobber Rechargeable Rear Bike Light

A compact and lightweight rear light ideal for commuters who want to stay seen with up to 170 lumens of light output plus 330-degrees of visibility. The light comes with an internal lithium-polymer battery which is rechargeable with an integrated USB plug which makes for easy charging, from any standard USB port, on the go. The versatile, tool-free, silicone mounting strap is removable and works with most types of bike frames with an integrated magnetic mount. Also included is an Aero mount.


  • In-built lithium-polymer battery
  • Integrated USB recharging
  • 4 hours charge time with charging indicator
  • Tool-less removable silicone straps for bars/seat posts 22-32mm
  • Aero Mount also included
  • Efficient Chip on Board (COB) LEDs
  • 100% waterproof against all elements
  • Dimensions: 62mm x 33mm
  • 8 different light modes
  • Max: 75 lumens – 2 hours
  • Mid: 35 lumens – 3.5 hours
  • Steady Pulse: 170 lumens – 2.5 hours
  • Flash: 170 lumens – 6.5 hours
  • Rolling Flash: 70 lumens – 4.5 hours
  • Side Flash: 100 lumens – 2 hours
  • Disco Flash: 80 lumens – 4.5 hours
  • Eco Flash: 15 lumens – 100 hours
  • Weight: 44g
Mark M Really good light. Bright.
Mr Webster Excellent light, couldn't be easier to set up, sits securely on the seat tube. Very bright.
Camille C. Since I was convinced by another Knog product, the Blinder Road 600, I decided to go Knog for the rear light too. It's a very good light, super bright, awesome side visibility, and I loved the capability of programming it with Knog's software. You can customize brightness, flash patterns and most importantly, just put the modes you need on the light so you don't have to "scroll" all presets with one button. The only downside I see with the current asymmetric design is the protruding USB port on the side, it just looks weird and fragile. Once on your seatpost, you forget about it tho. I wish they can build a rev. 2 at some point, then my rating will go to 5 stars !
David Great light, very bright with good battery life. Really pleased with it, happy to recommend.
arrkayteee Brilliant ‘day-bright’ light. My only concern is the securing o-ring seems a bit thin.
Mr FUJITA コンパクトで且つ、明るいので私の要望にマッチしたライトでした。大変満足しています。
Raul Great quality and design. Very powerful light. Was thinking to buy the larger back cobber but for me the mid back cobber is good enough.