I like to post some interval workouts that I have done from time to time for people to be able to compare and contrast.
Just FYI, this one was done on a Big Fan Schwinn Airdyne bike with the newer computer. This means times will be faster.
2 Mile 5:10 Heartrate 155 BPM rest to 110 BPM 60 sec
1 Mile 2:25 Heartrate 165 BPM rest to 110 BPM 80 sec
1 Mile 2:25 Heartrate 169 BPM