Verified purchaser
First time using a power meter so a lot to get your head around. However, im pleased that i chose the Assioma over other options. So far so good
Product Details
Assioma PRO RS-1 Single Sided Power Meter Pedal
Favero Assioma PRO RS-1 Single Sided Power Meter Pedal is the lightest road power meter pedal available, weighing just 123.5 g per pedal. Compatible with Shimano SPD-SL cleats, it delivers pro-level performance with over 60 hours of use per charge and no power dropouts.
The power spindle houses all critical electronic components and the battery in a fully sealed and independent unit. This split design enhances durability and makes maintenance simple.
With a streamlined profile, a q-factor of +53 mm, and a stack height of 10.5 mm, it is designed to improve performance on road rides and training sessions. The Assioma PRO RS-1 delivers ±1% accuracy using the IAV Power System and provides detailed power data with advanced metrics. Its modular system also allows for easy conversion between road and MTB pedal bodies using the same power sensor.
A precision-engineered single sided power meter pedal, ideal for focused training and confident riding.
Tech Specifications
- Power Pedals: SPD-SL road power pedals with single-sided power measurement (left side only)
- Weight (Left Pedal with Sensor): 123.5g
- Weight (Right Pedal without Sensor): 122.5g
- Cadence Sensor: Included, inbuilt
- Gyroscope: Included, inbuilt
- Power Calculation System: IAV (Instantaneous Angular Velocity-based)
- Cycling Dynamics: Available
- Data via ANT+ or Favero Assioma App:
- Power
- Cadence
- PCO
- Power Phase (PP)
- Pedal Smoothness (PS)
- Torque Effectiveness (TE)
- Data via Bluetooth: Power, Cadence
- Oval Chainring Compatibility: Yes
- Battery Type: Rechargeable lithium-ion
- Battery Life: Up to 160 hours
- Radio Communication: ANT+, Bluetooth
- Accuracy: ±1%
- Thermal Compensation: Yes
- Waterproof Rating: IP67
- Q-Factor: +53mm
- Pedal Stack Height: 10.5mm
- Compatible Cleats: Shimano SM-SH10, SM-SH11 or SM-SH12
- Bike Type: Road cycling
- Warranty: 2 years
In The Box
- Power Meter: Sensor on the left side only
- Charging Cable: Two-way with magnetic connector
- Cleats: Shimano-compatible SPD-SL
- Washers: 4 included
- Tools: Greasing tools kit
- Documentation: Warranty and safety manual
- Additional: Welcome flyer
Features
- Left pedal with power sensor
- Right pedal without power sensor
- 100% Shimano SPD-SL cleat compatibility
- Lightest power pedal – Just 123.5 g per side
- ±1% Power Accuracy even with oval chainrings
- Rechargeable Battery – Up to 160 hours
- Advanced cycling metrics (PCO included)
- Pedal body in carbon-fibre tech-polymers
- Low stack height (10.5 mm)
- Low q-factor (+53mm)
- Modular design – interchangeable pedal bodies
- Made in Italy
Highlights
- Left pedal with power sensor
- 100% Shimano® SPD-SL® cleat compatibility
- Lightest power pedal – 123.5 g per side
Specifications
- Compatibility (Device / Platform)
- ANT+, Bluetooth
- Connectivity Type
- ANT+, Bluetooth
- Power Source Type
- Rechargeable Battery
- Primary Product Type (Electronics)
- Power Meter
- Water Resistance Rating
- IP67
- Accuracy Rating (%)
- 1 %
- Battery Life (Typical Use, Hours)
- 160 hrs
- Battery Type (Power Meter)
- Rechargeable
- Cadence Measurement
- Built-in
- Charging Interface
- Proprietary
- Discipline Compatibility
- Road, Gravel, Cyclocross, Triathlon, TT, Track
- Display Type
- No Display
- Firmware Upgradable
- Yes
- Measurement Position
- Pedal
- Measures Left / Right Balance
- No
- Mounting Location
- Pedal
- Release Year
- 2025
- Weight (g)
- 123.5 g
- Product code
- 1927209 / 54293927395674
Reviews
5
Value of Product
Quality of Product
Verified purchaser
These really are the perfect power pedals for me. Accurate, simple to charge and switch between bikes, and the added bonus of being a modular design, so you can can swap the expensive core out between SPD / SPD-SL pedal bodies. Just smart. Time with tell how 'easy' that process is, but on paper it looks pretty straightforward. Also - I almost bought the dual sided option, until a friend asked me "what are you going to do with that extra data?" – such a valid point! The vast majority of us really only need single sided. Very happy with my decision & save the extra £££.
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
Be the first to ask a question about this product.
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