Knog Blinder Road R70 Review

Knog Blinder Road R70

Knog Blinder Road R70

Overall Score


70 Lumens

Lightning Modes




The Knog Blinder Road R70 is perhaps one of the most reliable rear lights on the market today that I've had the opportunity to use.

It's designed by Melbourne based, Knog who is well-known for designing high quality cycling products.

If you are looking for a rear light with a sleek design that will grab the attention of drivers behind you, look no further than this one.

Knog Blinder R70 Rear Lights Set

Overview of the Knog Blinder Road R70 Rear Bike Light

  • 4 Powerful LEDs with a maximum brightness of 70 lumens that makes you highly visible on all occasions.
  • 100% Waterproof USB-male Plug for charging. There are no rubber seals to cover the charging ports.
  • Compatible with all types of seatposts. You can use it on round (22-32mm) and aero seatposts.
  • Single button operation used toggle between modes and to turn on/off.


  • Sleep and lightweight design
  • Free replacement for broken rubber straps. Order directly from Knog's website


  • Rubber strap is prone to breaking especially when used with aero seatposts
Knog Blinder Road R70 on Eco Flash Mode

Brightness and Light Modes

At 70 lumens, the Knog Blinder Road R70 holds the credential of delivering an exceptionally bright and visible light. The Collimated optics lens design allows the light to maintain constant brightness for you to be seen by other drivers from a distance.

And it comes with 5 different light modes that you can choose from. 

I find myself using the Eco Flash mode 90% of the time for a simple reason.

With this mode, there are 3 flashes on the 3 smaller LEDs followed by a single large flash on the large LED at the bottom. I find this type of flash beam attracts the most attention and it also last the longest. 20 hours!

Ease of Use

Knog Blinder Road R70 Back Side

As with most rear lights today, you can operate the Knog Blinder Road R70 with just a single button situated at the back of the unit.

Beside the button, you'll find a battery level indicator light. There are only 2 levels of indication; low battery and fully charged. I find this itself is more than enough for my needs.

It also comes with an in-built memory where the light remembers the last light mode you were on. However, this gets cleared off each time you charge it.

Mounting Options

Knog have done good job by offering you 2 easy-to-attach rubber straps (long and short) that you can use on seatposts of various sizes from 22 to 32mm in diameter.

And yes, it's also compatible with aero seatposts. You can easily swap the rubber straps without much hassle.

Having used and stretched the straps many times over my aero seatposts, I find that they're prone to breaking.

The good news is, you can order them for FREE directly from their website.

The Geeky Cyclist's Verdict

This is probably the rear light that does well in all departments; from brightness to battery life, built, mounting and most importantly design.

The down side?

It comes with a price tag that is higher than most of its competitors.

So, if you've the budget for it and want a rear light that blends in perfectly with your seatpost, then I strongly recommend the Knog Blinder Road R70.

  • BRIGHTNESS: 4.5/5. At 70 lumens, it's among the brightest rear lights you can get.
  • EASE OF USE: 5/5. Simple and straightforward one-button operation.
  • SIZE & WEIGHT: 5/5. It's among the lightest and sleekest in its category.
  • DURABILITY: 5/5. 2 years of riding in all weather conditions and it's still going very strong. Definitely durable!
  • MOUNTING: 4/5. Fits all types of seatposts using an easy to mount silicon rubber. No tools needed.

Looking for A Brighter Rear Light?

Cateye Rapid X3 Rear Lights

Cateye Rapid X3

Overall Score


100 Lumens

Lightning Modes




The Cateye Rapid X3 is an upgrade to the Knog Blinder Road R70 in terms of brightness.

There are 6 light modes available for you to play around. With 100 lumens at its maximum, you can be assured that it's really really bright.

But with only 1 mode at 100 lumens and the remaining 5 ranging between 20 to 50 lumens, this is where the Knog Blinder Road R70 wins over. At 100 lumens, the battery only last an hour, which is a little disappointing really.

The light can be mounted on both round and aero seatposts as well as the seat stays. It comes with 2 rubber bands in the box, long and short for this. 

Looking for A Cheaper Rear Light?

Cygolite Hotshot 100

Cygolite Hotshot 100

Overall Score


100 Lumens

Lightning Modes



59g (including mounts)

If you're on a tight budget and yet still want a high performance rear light to match the Knog Blinder Road R70, you might want to consider the Cygolite Hotshot 100

In my opinion, it's definitely not the best looking one out there, not even near. But it does it's job perfectly.

At 100 lumens, you know that it's very bright and is more than sufficient for most of your riding needs. 

The one feature that stood out with this rear light is you can incrementally adjust the brightness and flash beam's frequency using the 2 buttons at the front.

You can mount it on both the seatposts and seat stays. Aero seatposts are not compatible though. The mounting design gives you the ability to adjust the tilt angles that you want, which is something you might want to consider.