Kris Stallenberg 120-min Z2 (Endurance) Pushing #02 This session challenges your endurance by using long, slow ramps entirely within Z2. Each 20-minute ramp gradually increases the demand, teaching pacing and control without leaving the core aerobic zone defined by Coggan Power Zones. This workout improves your ability to handle subtle changes in gradient or wind on long rides. The focus is on maintaining a smooth pedal stroke as the power slowly rises. bike