YourIntervalsThreshold Pro
4 × 8 Threshold
Four eight-minute intervals slightly above FTP.
015 min30 min45 min60 min
Duration1 h
DifficultyVery Hard
TSS (est.)80
Intensity factor0.90
Workout structure
10 min 45→70 % + 4 × (8 min @ 103 % + 3 min @ 55 %) + 6 min 65→40 %. Watts shown for an FTP of 250 W — the app scales every target to your own FTP.
- Warm-up45 % → 70 % FTP10 min
- 4 × repeat8 min @ 103 % + 3 min @ 55 %44 min
- Threshold103 % FTP · 258 W at 250 W8 min
- Recovery55 % FTP · 138 W at 250 W3 min
- Cool-down65 % → 40 % FTP6 min
Why ride 4 × 8 Threshold?
Hard intervals near your functional threshold power. They train you to hold high power for longer, and they demand real recovery.
When to use it
On a dedicated hard day, usually no more than once or twice a week.
Recovery
Plan at least one easy day afterwards, two or more if your legs feel heavy.
Riding tips
- Ride it in ERG mode: YourIntervals sets the resistance for every interval, so focus on a smooth, steady cadence around 85–95 rpm.
- Targets feel off today? Use the intensity control to scale the whole workout up or down in 1 % steps.