Run/Bike Blend Workout

3 Sets:
90 Sec Run at Fast Pace, 45 Sec Recovery Spin (Bike)
90 Sec Run at Fast Pace, 45 Sec Recovery Spin (Bike)
90 Sec Run at Fast Pace, 45 Sec Recovery Spin (Bike)
90 Sec Run at Fast Pace, 45 Sec Recovery Spin (Bike)
-Rest 4 Min between sets-