3 x 4min (z4) x 4
- Cycling
- 1h 5mTime
- 61Stress
- 0.75Intensity
- 30Popularity
About this workout
This classic threshold workout features 2 sets of 4 minutes at 105% FTP, pushing your limits to replicate the intensity of a hard group ride or time trial. Perfect for building sustainable power, it helps define your FTP while keeping the fatigue manageable for a mid-week challenge.
Workout structure
- 30 min @ 55% (55w)
- 2X
- 4 min @ 105% (105w)
- Rest 4 min @ 75% (75w)
- 4 min @ 105% (105w)
- 15 min @ 55% (55w)