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equipment

Power Meter

A complete overview of power meters, how they work, and why they’re the gold standard for measuring cycling performance.

What It Is

A power meter is a device that measures the actual force you apply to the pedals, crank, or rear hub and calculates your output in watts. Unlike speed or heart rate, power provides a direct, objective measure of effort, making it the most precise tool for training and racing.

ELI5 Version

A power meter is like a lie detector for your legs. It tells you exactly how hard you're pushing, no matter the wind, terrain, or slope.

Why It Matters

  • Most accurate measure of effort, watts don’t lie.
  • Enables precise training especially for intervals and pacing.
  • Essential for setting training zones (Zone 2, Sweet Spot, Threshold, etc.).
  • Improves pacing for time trials, climbing, and long events.
  • Allows deep analysis of performance, fatigue, and progress.
  • Pairs perfectly with bike computers for structured workouts.

Practical Use

  • Pair your power meter with a bike computer to view real-time watts.
  • Use power to execute structured intervals in the correct training zones.
  • Monitor changes in FTP and LT2 over time.
  • Track power curves to understand strengths (sprints, climbs, endurance).
  • Use dual-sided meters for balanced left/right pedal analysis.

Other Reading

DC Rainmaker has the comprehensive guide to buying a power meter if you want to <a href="https://www.dcrainmaker.com/2022/04/power-meter-buyers.html" target="_blank" rel="noopener noreferrer">check it out</a>.