RPE stands for Rate of Perceived Exertion, a subjective scale used to measure how hard you feel you're working during exercise.
It helps cyclists assess effort without relying on heart rate or power data.
The most common version is a 1 to 10 scale, where 1 is very easy, and 10 is maximal effort.
RPE accounts for breathing, muscle fatigue, and overall discomfort during a workout.
This scale is useful in situations where technology is unavailable or unreliable.
RPE also helps beginners develop body awareness and understand training intensity.
It can be matched with heart rate and power zones for a more complete training picture.
Tracking RPE over time gives insight into how your fitness and fatigue are evolving.
Using RPE in your sessions supports smarter pacing and better self-regulation.
Understanding RPE is key for athletes who want to train consistently with or without devices.