Find the best power meters atEscapa.TheFavero Assioma Pro RS-1 Power Meter Pedals are now available—a road cycling power meter with a power sensor in the left pedal and the option to upgrade to the PRO RS-2 in the future.

TheFavero Assioma Pro RS-1 Power Meter Pedalsare the lightest road bike power meter pedals on the market, weighing just 123.5 g per side.

Compatible with Shimano® SPD-SL® cleats, they offer professional-level performance and over 60 hours of use per charge, with no power interruptions. The axle, which securely houses all key electronic components and the battery, is completely sealed and separate from the pedal body. This modular design ensures durability and easy maintenance.

Its streamlined design, with a Q-factor of just +53 mm and a stack height of 10.5 mm, makes it an ideal choice for improving performance and achieving results in your road training sessions.

The Assioma PRO RS power meter offers ±1% accuracy thanks to the IAV Power System and provides the most comprehensive power data available, with a wide variety of advanced metrics.

Its modular design allows you to switch between road and MTB pedal bodies while keeping the same power sensor.

It installs in seconds, just like a conventional pedal. The Assioma PRO RS features automatic calibration and instant connectivity via Bluetooth and ANT+, ensuring a hassle-free experience.

Easily switch your power meter pedal between bikes and connect it to your favorite devices: bike computers, smartwatches, or apps like TrainerRoad, Zwift, Rouvy, and many more. Effortlessly track your power data on every road ride

Innovation at its core

What makes it different? It’s the only power meter that integrates electronics, strain gauges, and a rechargeable battery—all fully protected within a compact axle—to deliver unmatched durability and long-term performance. By eliminating electrical contacts—such as those found in replaceable batteries—it removes the risk of power interruptions caused by battery issues. And with no charging ports or battery compartments, the risk of water ingress is eliminated, ensuring an IP67 rating throughout its entire lifespan. This guarantees total reliability even in the most extreme conditions.

Every stroke measured with precision

Power and cadence are essential, but why stop there? With PCO, Power Phase, Seated/Standing Position, TE, and PS, you’ll get detailed insights to refine every pedal stroke and push past your limits. Unlock your full potential with reliable power data: precise, repeatable, and consistent, in any environment or weather condition. No guesswork—just useful, accurate information to take your performance to the next level.

PCO: The Game-Changer

Assioma Pro is one of the few power meters on the market that offers PCO (Platform Center Offset), a revolutionary metric that reveals hidden asymmetries in a cyclist’s pedaling dynamics. By showing how force is distributed across the pedal, it helps identify inefficiencies, improper cleat placement, and muscular imbalances. Beyond just watts, PCO helps you refine your pedaling technique, adjust your cleat position, and can potentially help prevent injuries.

Accuracy Under Any Conditions

Thanks to IAV Power technology, Assioma Pro measures true power even during explosive sprints, high-cadence pedaling, or when using oval chainrings, ensuring unprecedented accuracy in Shimano®-compatible pedals.

Technology that sets the standard

Powered by a three-axis gyroscope, our IAV Power system captures every variation in your pedaling for unmatched accuracy. Enjoy ±1% accuracy and repeatable data on every ride, regardless of external conditions.

Features:

Left pedal with power sensor

Right pedal without power sensor

100% Shimano® SPD-SL® compatible

The lightest power meter pedal on the market—just 123.5 g per side

Power accuracy of ±1%, even with oval chainrings

Rechargeable battery—over 60 hours of battery life per charge

Advanced cycling metrics (including PCO – Platform Center Offset)

Carbon-fiber-reinforced technopolymer pedal body

• Compact stack height (10.5 mm)
• Standard Factor Q (+53 mm)

Modular design – interchangeable pedal bodies (road/MTB)

Weight of left pedal with potentiometer: 123.5 g

Weight of right pedal without power meter: 122.5 g

Cadence sensor: internal, integrated

Gyroscope: internal, integrated

Power calculation system: IAV (based on instantaneous angular velocity)

IAV Cycling Dynamics: available

Data visible via ANT+ or the Favero Assioma app:

• Power
• Cadence
• PCO
• Power Phase (PP)
• Pedaling Smoothness (PS)
• Torque Effectiveness (TE)
• Seated/Standing Position (not available on the Assioma Favero app)

Data visible via Bluetooth:

• Power
• Cadence

Compatibility with oval chainrings: yes

Battery: lithium, rechargeable

Battery life: at least 60 hours

Wireless communication: Bluetooth, ANT+

Power measurement accuracy: ± 1%

Temperature compensation: yes

Water resistance rating: IP67

Factor Q: +53 mm

Stack height: 10.5 mm

Compatible shims:

• Included cleats (item no. 773-20-64)
• Shimano® SM-SH10, SM-SH11, or SM-SH12 cleats