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How to Choose a Power Meter: The Complete Buying Guide for Cyclists

How to Choose a Power Meter: The Complete Buying Guide for Cyclists

A complete how-to-choose guide covering pedal, crank, and spider power meter types; Look vs SPD cleat compatibility; single vs dual-sided measurement; and the full Favero Assioma PRO RS, RL, and MX range.

Training with power is the single biggest upgrade you can make to your cycling. But with pedal-based, crank-based, and spider-based options — plus single-sided vs dual-sided, Look vs SPD compatibility — choosing the right power meter can feel overwhelming. This guide cuts through the noise so you can train smarter from day one.

Why Train with Power?

Unlike heart rate, power is instantaneous and objective. It tells you exactly how hard you're working right now — not 30 seconds ago. Whether you're targeting a FTP improvement, pacing a sportive, or following a structured training plan, a power meter gives you the data to train with precision and race with confidence.

Types of Power Meters: Where Is the Sensor?

Power meters measure the force you apply to the drivetrain. The location of the sensor determines accuracy, convenience, and bike compatibility.

Pedal-Based Power Meters

The sensor lives inside the pedal body. This is the most popular choice for cyclists who own multiple bikes — you simply move the pedals between bikes in minutes with no tools beyond a pedal wrench.

Best for: Riders with more than one bike, those who travel frequently, or anyone who wants a plug-and-play setup without touching the drivetrain.

Key consideration: Pedal-based meters are cleat-system specific. You must choose a pedal that matches your shoes' cleats — Look Kéo or SPD-SL for road, SPD for MTB/gravel.

Crank Arm Power Meters

The strain gauge is built into one or both crank arms. These are more bike-specific but offer excellent accuracy and are often more affordable than pedal-based options at the entry level.

Best for: Riders committed to a single bike who want to keep their existing pedal system.

Spider-Based Power Meters

The sensor sits in the chainring spider at the centre of the crankset. These tend to be the most accurate (measuring at the true power transfer point) but are the least portable and most drivetrain-specific.

Best for: Performance-focused riders on a dedicated race bike who prioritise accuracy above all else.

Single-Sided vs Dual-Sided: Does It Matter?

A single-sided power meter measures one leg (typically the left) and doubles the reading to estimate total power. A dual-sided meter measures both legs independently.

Single-Sided

  • Lower cost
  • Lighter weight
  • Accurate enough for the vast majority of training and racing
  • Assumes a 50/50 left-right power balance

Dual-Sided

  • Measures true left and right power independently
  • Provides left/right balance data — useful for identifying imbalances during injury rehab or bike fitting
  • Higher cost, but the data is genuinely actionable for serious athletes

Our recommendation: For most cyclists, a single-sided meter is more than sufficient. If you're working with a coach, recovering from injury, or optimising your bike fit, the left/right data from a dual-sided unit is worth the premium.

Clipless Pedal Compatibility: Look vs SPD

This is the most common source of confusion when buying a pedal-based power meter. You must match the pedal to your cleat system.

Look Kéo / Look-Compatible (Road)

The dominant standard for road cycling. Three-bolt cleats attach to road cycling shoes with a wide, stiff sole. If you ride road or triathlon and use Look Kéo, Shimano SPD-SL, or compatible cleats, you need a Look-compatible power meter pedal.

SPD (Mountain Bike / Gravel)

Two-bolt cleats that recess into the shoe sole, allowing you to walk normally. Standard for MTB, gravel, and commuting. If your shoes have recessed two-bolt cleats, you need an SPD-compatible power meter pedal.

The Favero Assioma Range: Our Top Recommendation


Favero Assioma pedals are the benchmark for pedal-based power meters — trusted by WorldTour professionals and amateur cyclists alike. They combine exceptional accuracy (±1%), long battery life (50+ hours), and seamless ANT+/Bluetooth connectivity with Garmin, Wahoo, and all major head units.

Assioma PRO RS — Road, Look-Compatible

The PRO RS is Favero's flagship road power meter pedal, designed for Look Kéo-compatible cleats. Available in single-sided (PRO RS1) and dual-sided (PRO RS2) configurations.

Shop the Favero Assioma PRO RS


Assioma PRO RL — Road, Look-Compatible (Premium)

The PRO RL builds on the RS platform with an upgraded pedal body and refined aesthetics. Also available in single (PRO RL1) and dual-sided (PRO RL2) versions — ideal for riders who want the best road pedal Favero makes.

Shop the Favero Assioma PRO RL


Assioma PRO MX — MTB & Gravel, SPD-Compatible

The PRO MX brings Assioma accuracy to off-road riding. SPD-compatible and built to handle mud, gravel, and trail conditions. Available in single (PRO MX1) and dual-sided (PRO MX2) versions.

Shop the Assioma Favero PRO MX


Assioma UNO & DUO — Classic Road Series

The original Assioma range remains an outstanding choice for road cyclists on a budget. Look Kéo-compatible, with the UNO (single-sided) and DUO (dual-sided) offering the same ±1% accuracy at a more accessible price point.

Shop the Favero Assioma UNO & DUO


Quick Decision Guide

Your Situation Recommended Model
Road bike, Look/SPD-SL cleats, budget-conscious Assioma UNO (single) or DUO (dual)
Road bike, Look cleats, want the latest tech Assioma PRO RS1 or PRO RS2
Road bike, Look cleats, premium build Assioma PRO RL1 or PRO RL2
MTB or gravel, SPD cleats Assioma PRO MX1 or PRO MX2
Multiple bikes, want portability Any Assioma pedal — move between bikes in minutes
Injury rehab or bike fitting focus Any dual-sided model (DUO, PRO RS2, PRO RL2, PRO MX2)


What About Head Unit Compatibility?

All Favero Assioma pedals broadcast over both ANT+ and Bluetooth simultaneously, making them compatible with every major cycling computer — Garmin Edge, Wahoo ELEMNT, Hammerhead Karoo, Bryton, and more. They also connect directly to Zwift, TrainerRoad, and other training apps via Bluetooth.

Ready to Train with Power?

Browse our full range of power meter pedals — including the complete Favero Assioma lineup — available with local Singapore stock and fast shipping across Southeast Asia.

Shop All Power Meter Pedals


Have questions about which model suits your setup? Drop us a message — we're cyclists too, and we're happy to help you choose.


Written by Sunil S, a hobby cyclist based in Singapore.

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