Rate of Perceived Exertion Scale
This is the RPE, or Rate of Perceived Exertion scale athletes will use if they don’t have a power meter. The RPE scale is a very effective way to train, often as or more effective than power training. It takes a little practice to use, but you’ll adapt to it very quickly after a couple weeks.
To save the scale to your computer, right click and hit Save Image As, then pick a location.