shimano spd pedal power meter Favero Assioma PRO RS-1 Power Meter Pedals

Favero Assioma PRO RS-1 Power Meter Pedals deliver single-sided power measurement in a true road pedal built around Shimano SPD-SL compatibility. The system places the power sensor on the left pedal and calculates total power by doubling left-leg output—an efficient way to bring structured training to any road bike without swapping cranksets or chasing compatibility.

Favero’s sealed power spindle houses the electronics and rechargeable lithium-ion battery, keeping the sensitive components protected and making day-to-day use simple. With an IP67 waterproof rating, temperature compensation, and over 60 hours of runtime per charge, the Assioma PRO RS-1 is designed for consistent data through long training blocks, rough weather, and travel.

The road-specific body is made from carbon-fibre tech-polymers to balance durability and low weight. A low 10.5 mm stack height and standard +53 mm Q-factor help preserve a natural fit and stable pedaling feel, while the clip-in interface remains fully compatible with Shimano SPD-SL cleats (including the included cleats, plus Shimano SM-SH10/11/12).

Assioma PRO RS-1 Specs at a Glance

• Power measurement: Left-side sensor (total power = left leg × 2).
• Accuracy: ±1% with IAV (Instantaneous Angular Velocity-based) power calculation; compatible with oval chainrings.
• Battery: Rechargeable lithium-ion; 60+ hours per charge.
• Connectivity: ANT+ and Bluetooth (up to 3 simultaneous BLE connections).
• Sensors: Built-in cadence sensor and gyroscope.
• Fit & interface: 10.5 mm stack height; +53 mm Q-factor; Shimano SPD-SL cleat compatible.
• Weather-ready: IP67 waterproof rating; temperature compensation.
• Weight: Left pedal with power sensor 124.8 g; right pedal without power sensor 123.8 g.
• Origin & coverage: Made in Italy; 2-year warranty.

Rider-Focused Data, Clean Road Setup

1. Road pedal feel, power meter precision: A dedicated SPD-SL road body keeps clip-in/clip-out familiar while delivering consistent training data.
2. Advanced metrics support: Track power and cadence plus detailed insights like PCO, Power Phase, Rider Position, Pedal Smoothness, and Torque Effectiveness when paired with compatible head units/apps.
3. Durable split architecture: The sealed spindle keeps electronics protected and separates the power sensor from the pedal body for practical serviceability.
4. Dialed fit & efficiency: Low stack height and a standard road Q-factor help maintain your position while improving stability through hard efforts.
5. Future flexibility: Modular, interchangeable pedal bodies (road/MTB), with an upgrade path available to dual-sided Assioma PRO RS-2.

Final Take

If you want a straightforward, road-ready entry into pedal-based power, the Assioma PRO RS-1 blends a low-profile SPD-SL platform with reliable accuracy, long battery life, and robust weather sealing. It’s a clean solution for riders who value consistent training data and an easy-to-live-with setup across everyday miles and focused intervals.