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Includes the Toni Tähti Training Power Pedal Guide (PDF)

Favero Assioma PRO RS-2 power meter pedals for road cycling with Shimano SPD-SL compatibility. Dual-sided power measurement, ±1% accuracy, 124.8 g per pedal and up to 160 hours of battery life.

Favero Assioma PRO RS-2 is a dual-sided power meter pedal for road cycling with direct Shimano SPD-SL compatibility. It is built for riders who want accurate power data without changing to a different cleat ecosystem. If you already ride Shimano SPD-SL shoes and want a clean, reliable and race-level power meter solution, RS-2 is the direct choice.

The system measures power from both legs separately, giving you true left and right balance data instead of a calculated estimate. This makes it easier to analyse asymmetries, pacing, pedalling efficiency and changes in force production over time. With ±1% accuracy, including compatibility with oval chainrings through Favero’s IAV Power system, the data stays consistent enough for serious training, testing and racing.

Assioma PRO RS-2 belongs to Favero’s latest PRO series, where the measuring electronics are integrated inside the spindle. That construction protects the system from impacts, moisture and dirt while keeping the pedal visually clean and mechanically robust. The sealed IP67 design adds confidence for year-round use and demanding riding conditions.

At only 124.8 grams per pedal, RS-2 is one of the lightest dual-sided road power meter pedals available for Shimano SPD-SL users. The 10.5 mm stack height helps preserve a direct pedalling feel, and the +53 mm Q-factor keeps the ride feel natural in modern road setups.

Shimano SPD-SL compatibility is the defining point of this model. RS-2 works with SH10, SH11 and SH12 cleats, which makes it the right choice for riders who want to stay with Shimano SPD-SL rather than move to Look Kéo. If your shoes, cleats and fit are already built around SPD-SL, this is the Favero PRO option designed for that setup.

Bluetooth and ANT+ connectivity allow easy pairing with most cycling computers, training apps and smart trainers. The integrated gyroscope and cadence sensor also provide advanced cycling dynamics data, including cadence, left and right power balance, power phase, pedal smoothness, torque effectiveness and platform center offset, also known as PCO. That gives you more than just watts. It gives you a clearer view of how the force is actually produced through the pedal stroke.

The rechargeable lithium-ion battery delivers up to 160 hours of use on a single charge. Charging is handled with two magnetic connectors and a dual charging cable, so daily use stays simple and clean. The modular design also adds long-term flexibility, as the system can be transferred to an MTB pedal body when needed.

Favero Assioma PRO RS-2 is made in Italy and built for riders who want low weight, high precision and real-world usability in one system. For road cyclists who want the benefits of the Favero PRO platform specifically with Shimano SPD-SL compatibility, this is one of the strongest options on the market.

Package contents:

The package includes the Favero Assioma PRO RS-2 pedal pair, Shimano SPD-SL compatible cleats, two magnetic charging connectors with dual charging cable, four washers, greasing tools, user documentation and warranty documents.

Are you interested in how power meter pedals can change your riding technique and lactate management while riding?

Read the blog: How Power Meter Pedals Changed the Way I Ride Climbs – and Why My Legs Don't Get Stiff Anymore