The 4 Best Power Meters for Road Bikes in 2021

Jan Poshenko
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With over 150 SKUs, power meters are an essential part of training for any cyclist, professional or recreational.

But, what if you are confused about which one to buy?

I get it!

Power meters come in different shapes and sizes, with varied features and the prices frequently vary. They are all pretty darn complex.

So, instead of sifting through the hundreds of models out there, I’ve carefully selected the top 4 and compared them.

You see, I, too, bought my first power meter a couple of years ago. And, I had a choice from the same number of brands and models as you may be. And that led to confusion.

I went through all available models, prices, reviews, and even customer feedback and used my vast road riding experience to make the most of my research.

And, I am here to share my expertise with you to ensure that your next power meter is the best investment you ever make.

NameCategoryProduct
Quarq DZero Power Meter Spider BlackBest OverallQuarq DZero Power Meter Spider Black
Velocomp PowerPod Lite V3 High Accuracy Black Cycling Power MeterBudget PickVelocomp PowerPod Lite V3 High Accuracy Black Cycling Power Meter
Favero Assioma Duo Pedal Based Cycling Power MeterUpgrade PickFavero Assioma Duo Pedal Based Cycling Power Meter

1. Quarq DZero Power Meter Spider Black

Our rating: 9 / 10

Quarq DZero Power Meter Spider Black

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Pros:

  • Measures power for both legs with +/- 1.5% accuracy
  • Dual Bluetooth low energy and ANT+ wireless data transfer
  • Reliable, accurate
  • Easy to use

Cons:

  • Not compatible with Quarq Elsa R cranks
  • Can't be installed to latest Sworks crank

Quarq's power meter technology is reliable, accurate, and easy to use. It is available as a spider by itself as an easy upgrade for existing cranks. The Dzero series offers improved data transfer and frame fit compatibility.

2. 4iiii Precision Power Meter Shimano Ultegra R8000

Our rating: 9 / 10

4iiii Precision Power Meter Shimano Ultegra R8000

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Pros:

  • World Tour winning PRECISION Power meter technology
  • Offered in a highly compact, highly durable, and utterly waterproof training tool
  • Extensive factory installed crank compatibility
  • Many RideReady options in both single (PRECISION) or dual-sided (PRECISION Pro) configurations
  • Product Features 3D power meter technology (patent pending)
  • Measures tri-axial strain on your crank
  • 100+ hours of battery life

= Cons

  • The model doesn't have temperature compensation

4iiii PRECISION Power MeterPRECISION is the world’s lightest and most accurate power meter. Proven at the highest levels of international competition, PRECISION sets the bar for performance in cycling disciplines from road and mountain biking to indoor and triathlon. It offers 100+ hours on a 2032 coin cell battery.

3. Favero Assioma Duo Pedal Based Cycling Power Meter

Our rating: 9 / 10

Favero Assioma Duo Pedal Based Cycling Power Meter

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Pros:

  • IAV Power system
  • Provides Pedaling analytics and not just power and cadence
  • Automatic Temperature Compensation
  • Waterproof, lightweight
  • Lithium-ion technology provides battery life up to 50 hrs
  • Easy to install

= Cons

  • The pedals are designed to be used as a set and not alone

Favero Assioma Duo Pedal Based Cycling Power Meter is a fantastic thing. It's a professional cycling power meter for unlimited improvement. Like a standard pedal, you can easily install and move your Assioma power meter from one bike to another without special tools.

Assioma uses an IAV Power system and an integrated gyroscope to measure the actual instantaneous angular velocity with ±1% degree of accuracy with any pedaling style, even with oval chainrings. The customers love it.

4. Velocomp PowerPod Lite V3 High Accuracy Black Cycling Power Meter

Our rating: 9 / 10

Velocomp PowerPod Lite V3 High Accuracy Black Cycling Power Meter

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Pros:

  • Better performance, more features, and incredible value
  • Improved accuracy, new wind and accelerometer sensors
  • New battery circuit extends the "off" time of PowerPod v3 to over 3 months
  • Sleek, low profile aero design
  • Works with any ANT+ bike computer, and non-ANT+ bike computers, such as Polar and Suunto
  • Works with bike computer apps on your iOS/Android smartphone

Cons:

  • The Issac app for computer needs some help
  • Not very user-friendly
  • Poorly built; you’re likely to break off the mount

The PowerPod Lite V3 Power Meter delivers the critical features cyclists want like high accuracy, +/- 2%, both leg measurement, etc. It works with any road, mountain, time trial, gravel, and cross bike. At only $199, the PowerPod Lite is not only an affordable power meter, but is remarkably accurate, convenient and easy to use.

PowerPod Lite V3 also incorporates a simplified and faster setup, along with an iOS/Android app that fine-tunes setup customization and offers power training plans.

PowerPod Lite V3 has just one button and one "status light", making day-to-day use super simple. Your Garmin, Wahoo, or other ANT+ bike computer displays and records PowerPod Lite V3 power, along with your other cycling measurements, giving you a complete record of your cycling data, including power, for your entire ride.

Frequently Asked Questions (FAQs)

What is the best cycling power meter?

It all depends on your budget and the amount of tweaking you need. Your power output can be adjusted to fit a particular type of bike or your riding condition. Other contributing factors include the reliability level of your training, where you ride, and how much you want to spend.

The best cycling power meter varies between cyclists and their budget. The most popular models are crank-based, as they are attached to the bike, giving you the most accurate measurements.

If you are a professional athlete, then the Stages Power crankset is the best choice for you. It is the most affordable, yet the most accurate model out there.

If you are just a casual rider, you can go with a model that is just as accurate but will give you no information about how much power you are putting out. As long as you like the way it looks on your bike, you are good to go.

What power meters do pro cyclists use?

Professional cyclists have been using power meters since about 1999, when SRM introduced the first commercially available model. With that, and many more coming in the years after, better and more accurate power readings were recorded, allowing cyclists to assess their strength in a much more technical manner.

Some of the most well-known power meters are made by SRM, PowerTap, Quarq, and 4iiii. Each company offers a unique software system that collects data and provides valuable information to the cyclist to help in assessing their form and training.

From there, power meters were developed to work on both road bikes and triathlon bikes. When choosing between road and triathlon, be aware of the type of bike you have or plan to purchase. Some power meters work with mountain bikes, others with aero bikes and others with any bike willing to accept its clampdowns.

Stages Cycling G3 Power Meter is among the professional cyclist favorites.

Do I need a power meter for my bike?

Power meters are far from cheap, but if you want to take your workouts to the next level, you can benefit from extra data.

Power meters give you an objective number to track your progress, which can be vital if you reach a specific goal.

Tracking your workouts using a power meter can be the vehicle for some of the most significant improvements to your cycling. Using a power meter also gives you the option to train more specifically.

If you are an endurance athlete or a certified triathlete, a power meter will help you push yourself to the furthest extent. The objective number of a power meter is helpful in the case of comparing your fitness level to other athletes.

Power meters are necessary for anyone doing triathlons, as it helps you train efficiently and helps you pace yourself.

What is the cheapest power meter for cycling?

Velocomp PowerPod Lite is the cheapest cycling power meter on the market. At only $199, the PowerPod Lite is not only an affordable power meter but is remarkably accurate, convenient, and easy to use.

Conclusion

Finding the most suitable power meter isn’t easy. That is why we dedicated in-depth articles to each of our top picks. We have reviewed all the top-rate companies that manufacture accurate power meters.
This article dives deep into the most important details of the top 3 power meters and evaluates their strengths and weaknesses. We hope that we can make it easier for you to make an informed decision about the best power meter by in-depth analysis.

Our Recommendation

NameCategoryProduct
Quarq DZero Power Meter Spider BlackBest OverallQuarq DZero Power Meter Spider Black
Velocomp PowerPod Lite V3 High Accuracy Black Cycling Power MeterBudget PickVelocomp PowerPod Lite V3 High Accuracy Black Cycling Power Meter
Favero Assioma Duo Pedal Based Cycling Power MeterUpgrade PickFavero Assioma Duo Pedal Based Cycling Power Meter