4 x 4min (z4) x 4
- Cycling
- 1h 22mTime
- 81Stress
- 0.77Intensity
- 30Popularity
About this workout
This classic 4x4 minute threshold workout pushes your limits at 105% FTP, making it ideal for building the sustainable power you'll need during group rides and time trials. It's a punishing yet effective session to define your FTP while improving your ability to sustain high-intensity efforts.
Workout structure
- 30 min @ 55% (55w)
- 4X
- 4 min @ 105% (105w)
- Rest 4 min @ 75% (75w)
- 20 min @ 55% (55w)