The 10 Best and Brightest Rear Bike Lights in 2021

Jan Poshenko
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For night riding and daytime visibility, you should ensure your bike is equipped with the best bike lights.

There are millions of products out there and they come in various price ranges — you don't want to spend more than you need to. These lights are value for money, bright and serve their main purpose of making you more visible to other road users.

10 of the best bike lights reviewed below!

NameCategoryProduct
KNOG Blinder Road R70 Rear USB Rechargeable LightBest OverallKNOG Blinder Road R70 Rear USB Rechargeable Light
Cygolite Hotshot Pro– 200 Lumen Bike Tail LightBudget PickCygolite Hotshot Pro– 200 Lumen Bike Tail Light
Exposure Tracer ReAKT Rechargeable Taillight One ColorUpgrade PickExposure Tracer ReAKT Rechargeable Taillight One Color

1. KNOG Blinder Road R70 Rear USB Rechargeable Light

Our rating: 9 / 10

KNOG Blinder Road R70 Rear USB Rechargeable Light

Check Price on Amazon

Pros:

  • Affordable
  • Easy To Attach and Remove

Every bike rider knows the feeling of riding home at night after work and still being able to see clearly enough. Sadly, this doesn’t apply when you are traveling at speed. As a matter of fact, a lot of bike lights available today are more about fashion than they are about function.

My pick from this list is the KNOG Blinder Road R70 Rear USB Rechargeable Light. It might look like a bike safety light that was made for urban cyclists, but it packs some serious power.

The lights are made from high quality, durable materials and are built to ensure they can’t be stolen easily. You don’t need to be an advanced rider either. You can buy the KNOG Blinder Road R70 Rear USB Rechargeable Light and have your rear light mounted in a few minutes.

2. Cygolite Hotshot Pro– 200 Lumen Bike Tail Light

Our rating: 8 / 10

Cygolite Hotshot Pro– 200 Lumen Bike Tail Light

Check Price on Amazon

Pros:

  • Short Dot Matrix Display
  • Flashing Mode
  • Steady Mode
  • Strobe Mode
  • IP64 water resistant
  • Comes with mount
  • Magnetic mount
  • Highlighted Features:

With Cars & Trucks– Can Be Used by Motorcycles & Cars as well!

Innovative rubber jacket…………………………………………………………………………under the rubber coating, a textured surface helps the mount adhere securely to your handlebars.

3. CAT EYE

Our rating: 8 / 10

CAT EYE

Check Price on Amazon

Pros:

  • 3 Bright LEDs
  • Easy Set-up
  • USB Rechargeable
  • Water Resistant

If you’re looking for an affordable rear light, the CatEye Rapid X3 gets the job done.

The lights attach to the end of your seat and are easily set up. The lights illuminate to let people behind you know you’re there and are visible from up to a one mile distance.

To set the lights up, you’ll need to plug them into your USB port and let them charge for about eight hours or else you risk not powering them on at all. The lights feature three different levels of brightness and easily turn on and off with the flick of the switch on the side.

4. Exposure Tracer ReAKT Rechargeable Taillight One Color

Our rating: 7 / 10

Exposure Tracer ReAKT Rechargeable Taillight One Color

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Pros:

  • Brightest rear bike light tested.
  • Designed and built by the Exposure team in England.
  • Solid construction.

Cons:

  • Expensive.
  • The large button can be finicky.

5. Ibex Sports Blaze Rear Light w/USB

Our rating: 7 / 10

Ibex Sports Blaze Rear Light w/USB

Check Price on Amazon

Pros:

  • Ultra Bright (512 lm / 300 m Beam)
  • IPX 7 Waterproof
  • Fit on Handlebar, Tube, Seat Post or Frame
  • Easy to Charge with USB
  • 2 Modes (Steady and Pulse)

6. See.Sense ACE Rear Light

Our rating: 6 / 10

See.Sense ACE Rear Light

Check Price on Amazon

Pros:

  • The See.Sense ACE is very bright.
  • The exact value of the 1200 lumens is between 900 and 1200, depending on the wheelie you do. And it means a real safety in case of sudden halts.

Cons:

  • It feels a bit expensive for such a little thing.

The See.Sense ACE is the best rear light we tested as it is very bright and takes charge in case of emergency. 2 rechargeable batteries lead to a total of 1200 lumens.

Frequently Asked Questions (FAQ)

What is the brightest rear bike light?

The best rear bike light is a question that has more than one correct answer. The world of bike lights is a big one, full of all sorts of functionality and reliability.

It can be pretty difficult to find the best rear light for the rear of your bike and for your needs and preferences.

We understand all of the choices and all of the options, so we’ve made things a bit easier for you. We’ve gathered the best, brightest, and most reliable front lights out there to make sure that you can enjoy the best safety measures.

Just like there are many types of bikes and many different kinds of riders, there are many different bike lights. They have different purposes and different methods of functioning.

Not all of them are made to light up a trail or be seen as far away as possible. There are lights that are made for different situations.

How bright should my rear bike light be?

Rear bike lights can add an additional layer of safety to your ride since traffic behind you can see you better. How important this is to you and your state varies as does the distance you ride. Most distances out of town are sufficiently lit that driver light pollution isn’t a factor. Most damage to cyclists are from inattentive drivers, so a rear light should help you stay safe.

There are currently no laws that require rear lights to be of a certain brightness, though some states are looking to put that into place. The generally accepted brightness of 250 lumens (roughly 10 watts) is commonly agreed upon among manufacturers and the Lights and Visibility Lab at the University of North Carolina.

What is the most powerful bike light?

In terms of power, the Cygolite TridenX 1300 is the most powerful rechargeable bike light in the world, with up to 1300 lumens. That’s almost 20 times more powerful than the brightest light on this list.

However, this monster of a light is designed for mountain bikers, so you’d probably want to stick with one of the smaller models if you’re just commuting.

But, you don’t need a powerful light if you’re just commuting to work around some the country roads. In that situation, you would be fine with a much dimmer, but visible light.

Your best bet is to get the brightest light you can afford.

Luckily, the best bright bike light comes in a wide range of lumen outputs, so you can opt for one that suits your needs in the moment.

What is the best lights for a bicycle?

Lighting requirements for bicycles vary from country to country, but in most countries, cyclists are required to have one rear light and one front light fitted to the bicycle. These lights do not necessarily have to be flashing, and they are normally only required at night.

Most major producers now produce to this standard, using either a hub dynamo — which powers your lights when you are moving — or by battery, which can be more convenient. Some lights, especially those made by Exposure, can be a hybrid of both: fitted with a battery and a dynamo. These will still be able to power lights even when stationary, at the expense of a loss of range.

There are few lights that provide a particularly illuminating beam or warning. Exposure lights generally deliver a high level of warning in the form of a very bright, high-powered headlight that may match or exceed 500 lumens. This is matched by a very bright tail light.

Conclusion

This guide will help you determine the best rear bike light for your needs and mount directly on your bike frame. Some of these lights offer a rear light, some of these offer a rear light and a front light, and some even offer a rear light, a front light, and even the option to combine multiple lights into one.

Our Recommendation

NameCategoryProduct
KNOG Blinder Road R70 Rear USB Rechargeable LightBest OverallKNOG Blinder Road R70 Rear USB Rechargeable Light
Cygolite Hotshot Pro– 200 Lumen Bike Tail LightBudget PickCygolite Hotshot Pro– 200 Lumen Bike Tail Light
Exposure Tracer ReAKT Rechargeable Taillight One ColorUpgrade PickExposure Tracer ReAKT Rechargeable Taillight One Color