LEFT-SIDED POWER METERS
Non Drive Side Crank Only
- 5 Tour de France wins with Stages left sided power meters
- Shimano, Campagnolo and Cannondale SI models available
- Stages L Carbon Power Meters and spindles compatible with SRAM/SRAM DUB, FSA, Specialized, Easton and Race Face cranks
- 200+ hours of battery life
- Starting at: $399
LEFT & RIGHT-SIDED POWER METERS
Bilateral Power for Advanced Data
- True left/right balance, torque efficiency and pedaling smoothness
- Can be de-coupled and fitted to two separate bikes
- Shimano Ultegra, Dura Ace, XTR and XT models available
- 175+ hours of battery life
- Starting at: $749
RIGHT-SIDED POWER METERS
Spider, Crank, Spindle and Chain Ring
- Great for tight clearance gravel, mountain and aero bikes
- Converts ANY existing Stages L power meter into a bilateral LR unit
- Shimano Ultegra, Dura-Ace, XTR and XT models available
- 200+ hours of battery life
- Starting at: $399
FACTORY INSTALL SERVICE
Add power to your own crank arm
- Send your own bike crank arm in and get a power meter back in 2-3 weeks
- The easiest and most affordable way to train with power
- Available for Dura Ace, Ultegra, 105, GRX, XTR, XT, and Cannondale Si
- Same battery life, accuracy and reliability as in-line models
- Starting at: $325
POWER METER BRAND PARTNERS
What is a power meter?
A power meter is a device on a bicycle used to measure the power output of the rider. Stages Power meters are all crank-based and use strain gauges to measure the torque, or flex, in the crank arm. The torque data collected as well as cadence are used to calculate power, as displayed in watts, and used to determine the riders’ effort.
What data will a power meter give me?
Stages Power meters collect power data, displayed in watts and have an integrated accelerometer for magnet-free cadence. When paired with your favorite app or head unit, you’ll be able to view ride time, distance, elevation profiles, power, cadence, and more, depending on the device.
What do watts mean?
Watts are the unit that the power is displayed in. Simply put, power displayed in watts tells how hard you’re working on the bike, and is the most accurate way to capture your true effort. Unlike heart rate, power is not affected by lack of sleep, dehydration, heat, stress or caffeine, and while heart rate changes can lag behind short efforts, power data is instantaneous. Power is the perfect tool to understand how you are progressing and the best indicator of fitness gained and fatigue level.
How do power meters work?
To measure torque, Stages’ proprietary strain gauges are laid precisely along the crank arm. These gauges can detect the smallest flex in the stiffest crank and every pedal stroke causes a small amount of flex along the crank arm. This downward force happens in every rotation. Using an accelerometer, the Stages meter measures cadence. Once cadence and torque are collected, they are multiplied together to determine the power of a single pedal stroke. Stages Power meters are equipped with Active Temperature Compensation firmware, which automatically adjusts for temperature changes during your ride, so you can trust your data. Stages meters offer both ANT+ and Bluetooth transmission protocols to simplify the setup process and ensure that power meters are compatible with a broad range of other devices, including smart trainers, phones, cyclometers and more. Read more about the science of Stages here.
What is a single sided power meter?
A single sided power meter goes on either the left or right side of your bike and measures power just on the one side. There have been 5 Tour de France wins with Stages left sided power meters. Right sided power meters are great for tight clearance gravel, mountain and aero bikes.
What is a dual sided power meter?
A dual sided power meter means you have power meters on both the left and right sides of your bike. With a dual sided power meter, you’ll be able to view advanced data such as your true left/right balance, torque efficiency and pedaling smoothness.
How do I know what power value should be my target?
We recommend performing a threshold test, which can be accomplished with help from the Stages Cycling app, and will help guide your power training. Having an accurate threshold value will assure that training zones and other metrics are calculated correctly. Functional Threshold Power (FTP) is the maximum wattage you can sustain for a long duration, usually 1 hour. This number is the basis for setting your power training zones and calculating several power based metrics, such as TSS, T-Score, and IF.
How do I pair the Stages Power meter with my GPS cycling computer?
Activate your power meter by rotating the sensor. From the main menu on your Stages Dash, select ‘Activity Sensors’ and ‘Add Sensor’, and you should see your sensor populate to confirm. Detailed steps can be found here.
What side of the bike does a power meter go on?
The most common Stages Power meters will go on the left side of your bike, but Stages sells power meters for both sides. You can buy a left sided power meter, right sided, or dual sided Stages Power meter.
Do I need a power meter even if I'm not a pro cyclist?
Power meters are a fantastic tool for riders of all strengths and disciplines. Power meters are the single best tool to increase cycling performance, whether you’re training to win a world championship or training for your first race. You’ll get the data you need to be successful, ride smart and ride safe. A power meter will help any cyclist accomplish a goal with the ability to see and measure progress.
Can I add a power meter to any bike?
To ensure your bike is compatible with a Stages Power meter, we recommend checking these primary compatibility guidelines for your bike: frame clearance, chain stay brake, crank compatibility. Read more here.
Does the Stages Power meter pair to a non-Stages cycling computer?
Yes! Pairing via ANT+: Follow your head unit manufacturer's instructions to add the power meter, identifying it on the list of devices by the left side power meter's ANT+ ID (printed on the sticker below the power meter pod). Pairing via Bluetooth: Follow your head unit manufacturer's instructions to add the power meter, when viewing a list of devices, identify the left power meter based on the sensor name, which should include the left power meter's ANT+ ID (i.e. Stages 12345).
Accurate Power Meter for Cyclists & Triathletes
Know how hard you are training, know when you push harder and when to pull back for maximum workout efficiency. See your average power and 3 second power easily while riding to make adjustments during your ride.
Cost of A Power Meter
Stages Power meters range from $199 to $899 depending on the model. The cheaper options for new power meters are generally left sided and more expensive are dual sided power meters. The cost of a power meter will be reduced if you choose Stages Factory Install Service (install on your own crank) instead of buying a new one.
Dual power vs single sided power meter for cycling
Depending on the level of data you want you can choose either dual or single-sided power. Dual power will allow you to know which leg is working harder, and help you and your coach determine if you should do additional 1 leg exercises to improve your overall performance. Single sided power will still provide actionable information, just not leg specific. Single-sided power will enable you to know your overall stats of the ride, the real-time energy output (ideally paired with a heart rate monitor) allowing you to look at each rides effort to ensure you are training correctly to reach maximum efficiency.
Do pros use power meters?
YES! Professional cyclists in every discipline rely on power meters in training and racing. Stages Power has carried riders to five Tour de France victories, plus many more world and national championships. If you believe racing provides the world’s best product proving ground, then Stages Power is proven as the world’s best power meter.
Are pedal power meters better than crank power meters?
All Stages Power meters are crank based. Stages crank based power meters provide accurate and reliable power data through the largest variety of conditions, even when you only use a single sided power meter. Pedal based power meters may be easier to switch between bikes, but Stages power meters are so much less expensive, you can equip multiple bikes with power meters for the same price as a pair of power meter pedals. Stages crank based power meters are also more durable, especially in rough terrain or on a mountain bike.
Can I put a power meter on my bike?
Stages has power meter options for most bikes and drivetrains. There are two important factors to determine if you can put a power meter on your bike: bike frame clearance and drivetrain compatibility.
We recommend checking frame clearance for all left-side, left/right, and MTB power meters due to the large number of variations of bicycle frames, parts specifications, and ongoing model year changes that make it difficult to keep a running list. Checking the frame compatibility is simple and can be done with a 10mm allen wrench.
Once you've checked the frame for clearance, the next step is to confirm compatibility with your existing crank set. In some instances, a left crank option is not available, so a complete crank set may be required. Check our list of models to find an equivalent model with your existing crank. Check the product descriptions to confirm compatibility with other models of cranks from the same manufacturer, as an exact match is not always needed. More information on cross-compatibility is also included here.
Should I add a power meter to my mountain bike?
Riding with a power meter adds valuable data and insights on the road and on the mountain bike. Stages works with many mountain bike athletes, even in gravity mountain bike disciplines who measure power during training. A power meter is helpful when pacing yourself on a long mountain bike ride, and provides a more complete picture of the work you’re doing on the mountain bike compared to heart rate, speed, distance or other metrics.
Is riding with heart rate more accurate than riding with power?
Heart rate monitors and power meters are both important and useful tools in your cycling tool belt, but they provide different and separate data. Heart rate will often vary based on your caffeine intake that day, how well you slept the night before, or if you’re coming down with a cold. However, a watt is always a watt and a power meter will measure watts immediately and accurately every ride.
Is it worth getting a power meter?
The days of power meters only being used by professional athletes are in the past. Today, power meters are inexpensive, available and useful for cyclists of all types and commitment levels. You don’t have to enter a race to benefit from the data a power meter provides, it can help you pace long rides or help make sure you’re fueling properly. Not to mention, data is fun! We track steps, sleep, screen time and every other aspect of life. Adding a power meter to your bike allows you to track cycling and all the data points that come with it.