Favero Assioma PRO RS-1 Power Pedals - Single Sided - Compatible with Shimano® SPD-SL® cleats
The Favero Assioma PRO RS-1 is a single-sided road power meter pedal system for riders using Shimano SPD-SL cleats.
It measures power from the left pedal and estimates your total power output, giving you reliable power and cadence data without needing to change your crankset, bottom bracket or drivetrain.
If you already ride Shimano SPD-SL road pedals and want to start training with power, the PRO RS-1 is the clean, current Favero option.
Not sure which Favero pedals are right for you?
Start with your cleats, then choose single-sided or dual-sided power.
Read our Favero power meter pedal guide
Still unsure? Get in touch before ordering and we’ll help you choose the right option. Why we like them
The Assioma PRO RS-1 gives Shimano SPD-SL users a proper pedal-based power meter without adapters, hacks, or the older Duo-Shi style setup.
Install the pedals, pair them to your bike computer or training app, and you’re away. Because the power meter is built into the pedal axle, you can also move it between compatible bikes more easily than a crank-based system.
It’s rechargeable, tidy, lightweight, and gives you the key power numbers you need for training, pacing and tracking progress — without paying for full dual-sided measurement. RS-1, RS-2, RL or UNO?
Choose the PRO RS-1 if you use Shimano SPD-SL cleats and want single-sided power measurement.
Choose the Assioma PRO RS dual-sided version if you use Shimano SPD-SL cleats and want true left/right power measurement.
Choose the PRO RL if you use Look Keo-compatible cleats.
Choose the Assioma UNO if you want a proven single-sided Favero road power meter pedal.
Different cleat systems, different data levels. Annoying? Slightly. Worth checking before buying? Absolutely. Best for
Road riders using Shimano SPD-SL cleats
Riders starting to train with power
Indoor and outdoor training
Riders wanting a lighter, cleaner setup than older adapter-style systems
Race bikes, training bikes and smart trainer setups
Cyclists who want useful power data without paying for dual-sided pedals Key features
Single-sided road power meter pedal system
Measures power from the left pedal
Estimates total power output
Shimano SPD-SL compatible
Rechargeable lithium-ion battery
Up to 160 hours battery life per charge
ANT and Bluetooth connectivity
Built-in cadence sensor
Built-in gyroscope
IAV Power System for accurate power measurement
Compatible with oval chainrings
Adjustable release tension
IP67 waterproof rating
Stack height: 10.5mm
Q-factor: 53mm
Left power pedal weight: 124.8g
Right pedal weight: 123.8g
Made in Italy Data you can view
Via ANT or the Favero Assioma app:
Power
Cadence
Platform Centre Offset
Power Phase
Pedal Smoothness
Torque Efficiency
Rider Position
Via Bluetooth:
Power
Cadence Compatibility
Suitable for:
Road bikes
Indoor trainers
Triathlon bikes
Time trial bikes
Riders using Shimano SPD-SL road cleats
Compatible cleats:
Shimano SPD-SL cleats What’s in the box
Left pedal with power meter
Right pedal without power meter
Shimano SPD-SL compatible cleats
Washers
Magnetic charging connector
Charging cable
Warranty and safety information
Manual Trev’s take
The PRO RS-1 is the one to look at if you’re already on Shimano SPD-SL road cleats and want to start training with power without jumping straight to dual-sided pricing. It’s lighter and tidier than the older adapter-style options, easy to move between bikes, and gives you the main numbers most riders actually use.
Delivery 3 - 10 Working Days