2 x 20 sweetspot

10 minutes of Warmup at cadence 90 and zone endurance
20 minutes of Interval 1 at cadence 90 and zone sub-LT
5 minutes of Rest at cadence 90 and zone recovery
20 minutes of Interval 2 at cadence 90 and zone sub-LT
10 minutes of War down at cadence 90 and zone endurance