Assioma Duo-Shi Power Meter Pedals

$825.00 CAD

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The Assioma DUO-Shi reflects the desire to offer to those cyclists fond of Shimano® road the opportunity to keep on training with their existing pedal bodies without giving up on the reliability of our power meter.

The technology implemented for Assioma DUO-Shi is the same as that for Assioma Look®: precision and accuracy in the data measurement tested through many years of experience in the field and proven by the feedback of our customers all over the world.

The compatible pedal bodies with Assioma DUO-Shi are: Shimano® PD-R8000, PD-R7000, PD-6800, PD-R550 and PD-R540.

Increased Q-factor? Yes but...! Unlike the Look® version for Assioma (+54mm), Assioma DUO-Shi’s q-factor is +64mm with PD-R7000/R550/R540 pedal bodies and +65mm with PD-R8000/6800.

Despite the fact that an increase in the q-factor was initially seen with some concern, Assioma have decided to carry on with the project considering that our body size (height, pelvis width, etc.) is a subjective factor contributing to determining what’s the best q-factor for each one of us.

The weight of Assioma DUO-Shi varies according to the pedal body in which it is installed! Find out how much yours:

  • Total weight with the PD-R8000: 157.0g per side
  • Total weight with the PD-R7000: 161.3g per side
  • Total weight with the PD-6800: 161.3g per side
  • Total weight with the PD-R550: 176.0g per side
  • Total weight with the PD-R540: 186.0 g per side

Power meter with sensors on both pedals. The best choice to take full advantage of the real dual-sided measurement.

  • Install it in seconds
  • Easily transferable between bikes
  • Bluetooth and ANT+ connectivity
  • Auto-calibration system

Many power meters calculate power using the estimated average angular velocity per rotation instead of the real Instantaneous Angular Velocity value: this may introduce an additional error of up to 4.5% compared to declared accuracy.

Assioma, instead, thanks to its exclusive IAV Power system and an on-board gyroscope guarantees the same ±1% accuracy with any pedaling style: even with oval chainrings.

  • Power sensor on both pedals
  • Dual-sided power measurement
  • Cadence sensor: included, inbuilt
  • Gyroscope: included, inbuilt
  • Power calculation system: IAV (Instantaneous Angular Velocity-based)
  • IAV Cycling Dynamics: yes
  • Oval-chainring compatible: yes
  • Adapter’s material: aerospace aluminium alloy
  • Battery type: rechargeable lithium battery
  • Battery life: at least 50 hours
  • Radio communication: Bluetooth v4.0, ANT+ PWR profile (CT + PO)
  • Accuracy power measurement: ± 1%
  • Temperature compensation: -10°C / +60°C
  • Water resistance degree: IP67
  • Weight of Assioma DUO-Shi without pedal bodies: 99,0g per side (battery included)
  • Weight of Assioma DUO-Shi with PD-R8000 pedal body: 157,0g per side (battery included)
  • Q-factor: PD-R7000/R550/R540: +64 mm
  • Q-factor: PD-R8000/6800: +65 mm
  • Bike type: racing/road
  • Made in Italy
  • Warranty: 2 years

Become a better cyclist

Using its gyroscope, Assioma provides advanced metrics to deeply analyze your pedaling.

On top of that, consistent and accurate data will lead you through the most rewarding cycling experience.

Easy to install

Install and transfer your Assioma power meter from one bike to another just like normal pedals, easily and without extra tools. Just screw them on your bike crank arms and you are ready to pedal!

IAV Cycling Dynamics

Assioma supports the advanced metrics IAV Cycling Dynamics: IAV Power Phase and IAV Rider Position. These metrics, combined with the classic power data, allow analyzing in details the pedaling technique and how the cyclist’s position on the bike influences performances.

IAV Power and Gyroscope

Unlike others, the measurements of Assioma are not affected by errors related to very irregular pedaling (eg. sprint uphill) or the use of oval chainrings. This is because Assioma is able to detect the actual instantaneous angular velocity of the pedal stroke, thus giving you the degree of accuracy of ±1% in any situation. Not only in the laboratory.

Bluetooth SMART and ANT+

Assioma communicates via Bluetooth and ANT+ with bike computers and smartphones, both Android and iOS.

Real dual-sided power data

Assioma DUO provides dual-sided data through real measurements: taken individually on both the left and the right leg; this make it possible to observe with accuracy not only the Total Power, but also the L/R Balance, the Torque Effectiveness (TE), the Pedal Smoothness (PS), etc.

Accuracy and consistency

Assioma provides accurate watt measurements with a great consistency and stability in the actual on-road use conditions and at any temperature between -10°C and 60°C. Thanks to the ATC (Automatic Temperature Compensation) too.

Waterproof, resistant and light

Assioma is the lightest pedal-based power meter. Thanks to its compact design, it never interferes with the pedaling: not even when cornering. The power sensors are protected in a bi-component resin block, extremely resistant to shocks and completely waterproof.

Rechargeable and green

Assioma is the only pedal-based power meter with integrated rechargeable batteries; a single charge ensures 50 hours of use at least.

Tested and guaranteed

Favero Electronics produces in-house each Assioma and thoroughly test it individually: fully satisfying the standards required by current regulations.

Package Contents
  • Left power sensor with adapter for Shimano® pedal bodies
  • Right power sensor with adapter for Shimano® pedal bodies
  • Battery charger including plugs (EU, US, UK, AU)
  • 2 two-meter long micro-USB/USB cables with 2 magnetic connectors
  • Hex key and 4 washers for the installation
  • User manual
  • Assioma DUO-Shi user manual

Free Shipping

Get it in 2-7 business days. Free shipping on $70+. Always duty free.

Free shipping on orders over $70

We can ship to USA and Canada.

Your order ships duty Free

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose.

Free Exchanges & Returns

All electronics including power meters, are not eligible for return, or exchange.


Every Favero product we carry comes with a full manufacturer warranty.

Favero Assioma Duo-Shi Power Meter Pedals
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