Obviously it is posted here for entertainment, but the raw data of the HR it takes to do something like this is interesting. It takes 50-70 beats depending on where your baseline measure is resting or awake-chill to balance your bike and produce no power. I expect with power on, the balance effort is less, but hard to isolate anything really. 70 more BPM is AT. So for THIS rider doing no power to the pedals consumes half the HR band from rest to aerobic threshold. 50 rest-193 at (206 max).
I get HR is very individual, but it is nice to have something even if I don't know what it means yet. What made it go down at 30 I don't know and I expect the end 154 was a no-hand on bars effort.