WOD - 1:00, 1:30, 2:00, 2:30, 3:00, 3:30, 4:00 - equal work and rest.
Equal work and rest intervals that increase by 30 seconds each time, working up from 1 minute to 4 minutes.
Honorboard: https://log.concept2.com/wod/2024-05-02/bikeerg
Check this Concept2 workout on the ErgZone app: