Favero Assioma PRO RS1 Single-Sided Power Meter Pedals (Native Shimano SPD-SL)

Seamless Performance Integration: Inside-the-Spindle Precision for Shimano Road Riders

Step up to pro-level metrics without compromising your natural biomechanics or cleat system. The Favero Assioma PRO RS1 represents a massive leap forward in power meter engineering. Unlike older conversion kits that required complex assembly or forced an unnaturally wide stance, the PRO RS1 integrates its class-leading strain gauge array entirely inside the spindle. Wrapped in a rugged, native Shimano SPD-SL compatible aluminum pedal body, this single-sided system measures real-time wattage and cadence from your left leg, doubling the data to provide flawless $\pm$1% accuracy up to 2,000 watts. It delivers the seamless profile, low stack height, and standard road Q-factor your body expects, making it an essential training weapon for competitive road and criterium racers.

Upgrade Pathway Ready:

🔄 Seamless Dual-Sided Scaling: The PRO RS1 is a single-sided power ecosystem that measures left-leg power. If you later decide to track right-leg data, advanced torque effectiveness, and left/right balance metrics, you can purchase a right-side upgrade pedal at any time and pair it instantly via the Assioma app.

Why the Assioma PRO RS Platform Dominates the Road:

• True Native Shimano SPD-SL Integration: No conversion required. Ride with your trusted Shimano road cleats. The pedal body is pre-assembled at the factory, dropping into standard crank arms like any traditional pedal.
• Inside-the-Spindle Sensor Shielding: The electronic brain, battery, and sensors are entirely sealed within the high-strength steel spindle, making it immune to rock strikes, crash damage, and road debris.
• IAV Power Technology & Integrated Gyroscope: Uncompromised data across irregular pedaling rhythms. By measuring your actual instantaneous angular velocity during each micro-segment of your stroke, the system keeps accuracy stable even when grinding up brutal climbs or using oval chainrings.
• IP67 Waterproofing & Magnetic Charging: Built for the elements. Completely sealed against torrential downpours, coastal salt air, and power-washing. The magnetic charging pins eliminate rubber port flaps, delivering 60 hours of active ride time per charge.
• Automatic Temperature Compensation: Accurate data from dawn to dusk. Whether racing through a chilly morning highland fog or baking in midday coastal heat, the internal processor dynamically updates its calibration line across temperature fluctuations from -10°C to 60°C.

Technical Specifications & Device Metrics:

Frequently Asked Questions (FAQ) for Discerning Riders:

How does the PRO RS1 differ from the older Assioma DUO-Shi framework?

The older DUO-Shi was a conversion spindle that required you to source separate Shimano pedal bodies, disassemble them, and install them onto a wider axle sleeve—which increased the system's Q-factor to 64mm, pushing your feet wider apart. The next-generation PRO RS1 comes fully pre-assembled as a native Shimano SPD-SL pedal out of the box. Because its sensors are miniaturized inside the axle, it maintains a standard road bike Q-factor of 53mm and an optimal low stack height, preserving your factory bike-fit alignment completely.

Do I need to manually calibrate the pedals before every weekend training ride?

No. The Assioma PRO RS1 features an advanced automatic zero-calibration mechanism that resets itself dynamically while the bike is at rest. You can simply turn on your head unit, clip in, and ride with full confidence that your data streams are perfectly anchored. Manual calibration is only required via the Assioma smartphone app immediately after installing the pedals onto a new set of crank arms to initialize the torque tracking lines.

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