Cycling FTP Power Zones

Functional threshold power is the highest average power you can hold for about an hour. Coggan zones: Z1 Active Recovery below 55% of FTP, Z2 Endurance 56–75%, Z3 Tempo 76–90%, Z4 Threshold 91–105%, Z5 VO₂ max 106–120%, Z6 Anaerobic 121–150%, Z7 Neuromuscular above 150%. A 20-minute test × 0.95 estimates FTP.