2 x 20 minutes @ 91% FTP

10 minutes of Warm Up [ERG watts = 50% of FTP]
20 minutes of 20 minutes @ 91% FTP [ERG watts = 91% of FTP]
4 minutes of 4 minutes recovery @ 150 watts maximum [ERG watts = 50% of FTP]
20 minutes of 20 minutes @ 91% FTP [ERG watts = 91% of FTP]
6 minutes of 6 minutes cool down spinning at 100 rpm [ERG watts = 35% of FTP]