Kris Stallenberg 45-min Z2 (Endurance) Pushing #06 This workout, the Cadence Pyramid, focuses on neuromuscular efficiency within a steady endurance effort. While power remains constant in Z2, you will be prompted to change your cadence. This challenges your pedal stroke and control, a vital skill for all-day riding. According to Coggan Power Zones, improving efficiency in Z2 is crucial for long-duration performance. bike