Ideal for commuters, urban riders and road cyclists who want compact front and rear lights with strong side visibility and smarter signalling in traffic.
The Knog Cobber Reflex Twinpack is a premium be-seen light set for riders who want standout visibility without bolting oversized hardware onto the bike. With a 350-lumen front, 250-lumen rear and the Cobber’s signature 330° beam arc, this set is designed to make you more noticeable from the side as well as straight ahead and behind. That matters most in traffic, at roundabouts and through intersections where side visibility can be just as important as raw brightness.
What sets this version apart is the smart lighting behaviour. Adaptive Reflex technology changes the way the lights behave as the bike leans, and the rear can boost its intensity as you slow down, giving riders and drivers behind you a clearer cue. For day-to-day use, the built-in automatic on/off function helps take the fuss out of commuting, while ModeMaker 2.0 gives you room to tailor the modes if you want a setup that better suits your route or riding style.
Mounting is broad and practical, with fit for 22–32 mm+ bars and seatposts plus compatibility with round and aero shapes. The included strap options make it easier to move the lights between bikes or experiment with front placement on bars, forks or the head tube. If you want a compact twinpack that prioritises all-round conspicuity, smart features and clean everyday usability, this is one of the more considered options in the category.
330° wraparound visibility
The broad beam arc helps you stand out across lanes and at intersections, not just to traffic directly in front or behind.
Smart Reflex behaviour
The front reacts to bike lean and the rear responds to speed changes and deceleration, adding extra visibility when riding conditions change.
Strong output front and rear
You get 350 lumens up front and 250 lumens at the rear, giving this set plenty of punch for daytime and low-light visibility.
USB-C rechargeable
Modern charging keeps things simple and easy to live with, especially if the rest of your gear already uses USB-C.
Automatic on/off
The lights sense movement and power up or down automatically, which is handy for regular commuting and quick errands.
Fits round and aero shapes
The strap system and included bands suit standard and aero bars, seatposts and the front can also mount to the head tube.
ModeMaker customisation
You can fine-tune how the lights behave, which is useful if you want different patterns for city commuting, daytime visibility or mixed riding.
Compact, easy-to-remove bodies
At 39 g each, they stay light and tidy on the bike and are easy to pop off when you lock up.
General
Light modes
Technical specifications
Compatibility
Features
What's included
User guides
Adaptive Reflex Technology
This smart lighting system reacts in real time to how you ride, helping keep you visible when you lean the bike, slow down or roll over changing surfaces.
Reflex Mode
Reflex Mode adjusts the light pattern with your bike’s tilt, so the strobing follows the direction of lean for stronger side visibility through corners.
Brake Response
The rear light spikes its intensity when it detects deceleration, giving drivers and riders behind you a clearer signal that you’re slowing down.
ModeMaker 2.0
You can fine-tune light modes and patterns to suit your riding, including turning features on or off and customising how the lights behave.
Eye Saver
If you mount the front light horizontally, this mode turns off half the LED board so less light shines up toward you.
Intelligent On/Off
The lights sense movement and power up or down automatically, which saves battery and makes day-to-day use easier.
Quick Release Mount
The mounting system is built for fast fitting and removal, with a secure hold across a wide range of bars, frames and seatposts.
Chip On Board (COB) LEDs
COB LEDs deliver a strong, highly visible output in a compact light body, helping you stay seen from more angles.
Great for
Maybe not for
Front fits 22–32 mm+ bars and can also mount to compatible head tubes; rear fits 22–32 mm+ seatposts and works with round and aero profiles. The box includes multiple silicone straps plus an XL O-ring for head-tube mounting. If you run the front light horizontally on the bars, the custom Eye Saver setting can help reduce upward glare.
vs Garmin Varia RTL515 + separate front light
A better fit if your priority is rear radar alerts through a bike computer, but it is a different proposition to a matched smart light set.
vs Wahoo TRACKR RADAR + separate front light
Another radar-first rear light option aimed at riders who want vehicle detection as the headline feature rather than a coordinated twinpack.
vs Lezyne Strip Drive Pro 400+ Rear + separate front light
A strong alternative if you mainly want a very bright rear flasher with long runtime, but it does not give you the same paired smart-light experience.
Best thought of as a premium be-seen set
This is the right kind of light set for commuting, bunch rides, dawn starts and general visibility duties. If your main goal is lighting up dark rural roads at speed, pair it with a stronger dedicated see-by front light instead.
Front placement matters
Because the Cobber format spreads light so widely, take a minute to dial in the front position on your bar, fork or head tube. A cleaner angle can improve comfort and reduce distraction on brighter flash patterns.
A good match for aero bikes
The included strap options and compatibility with aero shapes make this a practical choice for modern road bikes, commuter bikes and many gravel bikes where some lights can be fussy to mount securely.
Handy if you rotate bikes
The quick-release, strap-based setup makes this a sensible option if you regularly switch between a commuter, road bike and gravel bike instead of buying separate light sets for each one.
Technically UnKonventional
Knog is an Australian accessories brand founded in Melbourne in 2002 by Hugo Davidson and Mal McKechnie. The company built its name on cycling products that combine industrial design, everyday usability and a distinct visual identity, and it has expanded from bike accessories into selected outdoor gear as well.
Knog is especially well known for rethinking familiar products in a more design-led way, with major products including the Frog light, the Oi bell and the Cobber light range. Its products and brand have received multiple design awards over the years, including Australian Good Design and Eurobike-related recognition.
