CicloZone uses five power zones, calibrated to each rider's FTP. The colours appear on the studio screen, on your Rider Dials, and in your post-ride zone breakdown.
The five zones
Zone | Name | Colour | Effort |
Zone 1 | Active Recovery | White | Very easy, conversation pace |
Zone 2 | Aerobic | Blue | Steady endurance |
Zone 3 | Lactate / Endurance | Green | Moderately hard, sustainable |
Zone 4 | Threshold | Yellow | Hard, around FTP |
Zone 5 | VO2 Max | Red | Very hard, short bursts |
How zones are personalised
Each zone is a percentage range of your FTP. So a Zone 4 effort for a 150 W rider and a 300 W rider feels equally hard — both are at threshold for their own ability.
Post-ride zone breakdown
In your post-ride analytics, you see how many intervals you completed in each zone, in the format completed / assigned. For example: Blue: 3/3, Green: 4/5, Yellow: 2/2, Red: 1/2 would mean you missed one Green and one Red interval.
Why this matters
Power zones make a class fair across abilities — strong riders push higher absolute wattages, weaker riders push lower, but everyone is in the same zone at the same time.