Choosing a single sided power meter in 2026 means balancing accuracy, ease of installation, and budget. The Favero Assioma Pro RS-1 stands out for its professional-grade precision and lightweight design, ideal for serious cyclists who want top performance. Meanwhile, the Favero Assioma Uno offers reliable watt measurement at a more accessible price point, perfect for enthusiasts who prioritize ease of use and versatility. Both options come with tradeoffs: the Pro RS-1’s high accuracy comes at a premium, and the Uno’s single-sided measurement may not suit riders seeking the most comprehensive data.
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Key Takeaways
- The Favero Assioma Pro RS-1 excels in precision but carries a higher price tag.
- The Favero Assioma Uno provides reliable watt data with simpler installation and lower cost.
- Both meters are single-sided, meaning they measure power only from one leg, which may influence training insights.
- Compatibility varies: the Pro RS-1 uses Shimano SPD-SL cleats, while the Uno connects seamlessly via Bluetooth and ANT+.
- Battery life and ease of setup are significant considerations, with the Uno offering longer battery life and easier installation.
| Favero Assioma Pro RS-1 Single Side Power Meter Pedal |  | Best for Precision and Professional-Grade Performance | Power measurement accuracy: ±1% | Compatibility: Shimano SPD-SL | Sensor: Left-side power sensor with cadence and gyroscope | VIEW ON AMAZON | See Our Full Breakdown |
| Favero Assioma Uno Power Meter Pedal |  | Best for Ease of Use and Value | Battery life: Up to 50 hours | Connectivity: Bluetooth and ANT+ | Measurement: Single side | VIEW ON AMAZON | See Our Full Breakdown |
| single sided power meter | Compatibility | Sensor | Power measurement accuracy | Material |
|---|---|---|---|---|
| Favero Assioma Pro RS-1 Single | Shimano SPD-SL | Left-side power sensor with cadence and gyroscope | ±1% | Carbon-reinforced body |
| Favero Assioma Uno Power Meter | Most bike computers and smartphones | Left pedal only | — | — |
More Details on Our Top Picks
Favero Assioma Pro RS-1 Single Side Power Meter Pedal
The Favero Assioma Pro RS-1 is designed for serious cyclists demanding high accuracy, with ±1% measurement precision. Its built-in cadence sensor and gyroscope provide detailed data, making it ideal for detailed training analysis. Compared with the Assioma Uno, it offers superior accuracy, but its premium price and specific compatibility requirements mean it’s best suited to dedicated riders or those who already use Shimano SPD-SL cleats. The lightweight carbon-reinforced body enhances durability without adding weight, and its compact design fits seamlessly into a professional cyclist’s setup.
While the Pro RS-1’s data accuracy is impressive, it only measures power on the left side, potentially missing out on total power insights. The high price reflects its targeted professional market, which might be a barrier for casual cyclists. Still, if you need precision that rivals lab-grade equipment, this pedal is a clear choice.
Pros:- High-precision measurement with ±1% accuracy
- Lightweight, durable carbon-reinforced body
- Built-in cadence sensor and gyroscope
- Compatible with Shimano SPD-SL cleats
Cons:- Only measures power from the left side
- Premium price point
- Requires specific Shimano cleats
Best for: Serious cyclists and competitive riders seeking top-tier accuracy.
Not ideal for: Casual riders or those on a tight budget who don’t need the utmost precision.
- Power measurement accuracy:±1%
- Compatibility:Shimano SPD-SL
- Sensor:Left-side power sensor with cadence and gyroscope
- Material:Carbon-reinforced body
- Stack height:10.5mm
- Q-factor:+53mm
Our verdict“Ideal for riders who prioritize accuracy and professional-level metrics, despite the higher cost.”
Favero Assioma Uno Power Meter Pedal
The Favero Assioma Uno offers dependable watt measurement for cyclists who want straightforward data without the complexity or cost of more advanced models. Its rechargeable battery lasts up to 50 hours, making it practical for long rides, and it communicates via Bluetooth and ANT+ for easy pairing with most bike computers and smartphones. Compared with the Pro RS-1, the Uno’s single-sided measurement might limit insights into bilateral imbalances, but it still provides reliable power data for most training needs.
This pedal’s simple installation and long battery life make it particularly attractive for casual riders or those new to power meters. However, since it measures only from one side, it might not be suitable for riders who want detailed, bilateral data for advanced training. Its affordability and straightforward setup make it an excellent starting point, though it may lack some of the high-end features of more costly models.
Pros:- Easy to install and use
- Long-lasting rechargeable battery (50 hours)
- Accurate and reliable watt measurement
- Connects via Bluetooth and ANT+
Cons:- Single-sided measurement only
- Limited to cycling applications
- Requires compatible bike computer or smartphone
Best for: Enthusiasts new to power meters or riders seeking a budget-friendly, reliable option.
Not ideal for: Competitive athletes needing bilateral power data or riders who want maximum precision.
- Battery life:Up to 50 hours
- Connectivity:Bluetooth and ANT+
- Measurement:Single side
- Compatibility:Most bike computers and smartphones
- Sensor:Left pedal only
- Weight:Approx. 160g per pedal
Our verdict“A practical choice for riders looking for reliable power data without breaking the bank.”
How We Picked
Our selection process focused on the key factors that matter most in single sided power meters: accuracy, ease of installation, compatibility, and value. We compared products based on their technical specifications, user reviews, and overall design, prioritizing options that deliver reliable data without requiring extensive customization or expensive accessories. We also considered the reputation of the brands and how well each model balances performance with price, ensuring that both beginners and experienced cyclists find value in our picks.
| single sided power meter | Compatibility | Sensor |
|---|---|---|
| Favero Assioma Pro RS-1 Single | Shimano SPD-SL | Left-side power sensor with cadence and gyroscope |
| Favero Assioma Uno Power Meter | Most bike computers and smartphones | Left pedal only |
Factors to Consider When Choosing Single Sided Power Meters
When choosing a single sided power meter, it’s important to consider your training goals, budget, and compatibility with your current setup. The primary advantage of single sided models is their ability to provide power data with less complexity and lower cost, but they often sacrifice bilateral insights. Understanding the key differences between high-precision, professional models and more affordable, user-friendly options will help you select the right tool for your cycling routine.Accuracy and Data Quality
For competitive or serious training, accuracy can make a significant difference. Models like the Favero Assioma Pro RS-1 are designed for ±1% precision, providing data close to lab-grade equipment. For casual or recreational riding, the Assioma Uno still offers respectable accuracy, sufficient for tracking progress and maintaining motivation, but with less detail than high-end options.
Ease of Installation
Pedal-based meters like these are generally straightforward to install, but the Assioma Uno is particularly user-friendly, requiring no special tools or calibration. The Pro RS-1, while still simple, involves more steps due to its compatibility with specific cleats and higher-end sensors. Consider your comfort with bike maintenance and setup when choosing.
Compatibility and Connectivity
Most riders will want a model that easily pairs with their bike computer or smartphone. The Assioma Uno supports Bluetooth and ANT+, making it compatible with most devices right out of the box. The Pro RS-1 also supports these protocols but emphasizes integration with Shimano cleats, which may limit options for some users.
Price and Value
Budget constraints often dictate the choice. The Assioma Uno strikes a balance, offering good accuracy at a more accessible price. The Pro RS-1’s higher cost reflects its professional features and precision, making it more suitable for dedicated athletes willing to invest in detailed data.
Frequently Asked Questions
What is the main advantage of a single sided power meter?
The primary benefit is that it provides reliable power data from one leg, which is often sufficient for most training purposes, at a lower cost and simpler setup compared to bilateral meters. It reduces complexity while still offering valuable insights into your cycling performance.
Can I get a full picture of my power output with a single sided meter?
Single sided meters measure power from one leg, which can be a limitation if you want to analyze bilateral imbalances or split power evenly. However, many riders find the data enough for general training, especially if they are aware of their typical imbalance patterns.
Are single sided power meters accurate enough for competitive training?
Yes, especially models like the Favero Assioma Pro RS-1, which offers ±1% accuracy. Such precision is suitable for serious cyclists who need reliable data to refine their performance, though it may be overkill for casual riders.
How does installation differ between pedal-based and crank-based power meters?
Pedal-based meters like these are generally easier to install, often requiring just swapping out your existing pedals. Crank-based meters might involve more steps, calibration, and potential compatibility issues. Pedal-based options tend to be more straightforward and less intrusive.
What should I consider when choosing between the Favero Assioma Pro RS-1 and Uno?
If you prioritize maximum accuracy and professional-level data, the Assioma Pro RS-1 is the better choice despite its higher price. For users seeking reliable watt measurement with easier installation and a lower budget, the Assioma Uno offers excellent value, with the tradeoff being less detailed bilateral data.
Conclusion
For competitive cyclists or serious trainers, the Favero Assioma Pro RS-1 makes sense if precision and professional features justify the investment. Recreational riders or those new to power meters should consider the Favero Assioma Uno for its simplicity, affordability, and dependable data. Ultimately, your choice hinges on your training needs and budget, but both models deliver high quality for single sided measurement in 2026.
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