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ZWO Builder

Build structured bike training files with a simple text format.

Write a structured bike workout in plain text and export it as a .zwo file for Zwift or any compatible trainer app.

  • Recovery — below 55% FTP
  • Endurance — 55–75%
  • Tempo — 75–90%
  • Threshold — 90–105%
  • VO2max — 105–120%
  • Anaerobic — above 120%
FTP w