Slow suffering on Rouge bike:
5 mins warmup pace
Then 5 rounds 10 seconds maximum all out effort and rest 1:50. Go for max power output
Rest 2 min
Then 15 rounds of 1 min.
40 seconds zone 3-4 (max sustained cardio you can hold all 15 rounds)
20 seconds rest
Rest 3 minutes
Then 20 minutes for max calories
Stretch