Easy money

Duration 27:00 TSS 45 IF 1

03:00 @ 50% FTP - 85% FTP
03:00 @ 92%
03:00 @ 50%
6x
00:40 @ 130%,
00:20 @ 45%
03:00 @ 55%
6x
00:40 @ 130%,
00:20 @ 45%
03:00 @ 50%

40/20 efforts are completed just below your Maximal Aerobic Power. By splitting up the effort, you can accumulate more time at this intensity than you would if doing it as a continuous effort.