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The Shellmates Training Vault
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A power meter is a device that measures how hard you’re working on the bike in watts. Think of it as the cycling version of an objective “effort gauge”, it tells you your output in real time, whether you’re riding into a headwind, up a hill, or feeling fresh vs fatigued.
Do you need one?
No, especially as a beginner. You can train and race very well using effort (RPE) and/or heart rate. A power meter is a helpful upgrade, not a requirement.
Why athletes like power meters
More accurate pacing: watts stay consistent even when speed changes (wind, hills, terrain)
Better long-course execution: huge benefit for 70.3 and Ironman pacing so you don’t overbike and blow up the run
More precise training: intervals, sweet spot, and threshold work are easier to control
Progress tracking: you can see trends over time (FTP, workout consistency)
When it’s worth buying
You’re training consistently and like structure/data
You’re targeting 70.3 or Ironman and want stronger bike pacing
You do a lot of indoor riding and want reliable interval control
You’ll actually use the data (or your coach will)
When you can skip it (for now)
You’re still building consistency and habits
Budget is better spent on comfort/safety (bike fit, helmet, tires, fueling setup)
You feel overwhelmed by numbers and prefer simple training
Bottom line: Not required but if you want the most reliable bike pacing and structured training tool, a power meter is one of the best upgrades you can make once your training is consistent.
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