In Zwift’s FTP Test, a 20:00 free ride block is used for measuring the rider’s effort. When I am riding this block, my trainer does not seem to be affected by terrain. Whether I climb or descend, there is minimal resistance change on my trainer. I can keep a consistent cadence and wattage during the block regardless of what my avatar is riding.
In Zwift’s Custom Workout builder, I created an FTP Test with the 2 x 8:00 format. I simply inserted two 8:00 free ride blocks between my warm up and cool down periods. During these two blocks, the terrain seems to affect my trainer’s resistance (e.g., climbing gets more difficult and descending is easier). While I can keep a consistent cadence, my wattage seems to vary based on what my avatar is riding.
Can someone please explain what might be different about the free ride blocks used in Zwift-created workouts vs. user-created workouts?