40/20's into FTP #1

• 03:00 @ 40% FTP - 60% FTP
• 2x

  00:30 @ 95%,
  01:00 @ 60%
• 01:00 @ 50%
• 4x

  00:40 @ 121%,
  00:20 @ 50%
• 10:00 @ 95%
• 04:00 @ 55%

Enter FTP

40/20s are an effective workout on its own. Complement these by finishing with a 10-minute Threshold effort, and you are in for an extensive session!