I rode on a trainer again, only now I have a heart rate monitor to measure how I’m doing! on 1/2, I rode for about 50 minutes, with an average heart rate of 163. That’s right about 80% of my recommended maximum. Perfect. Today I rode for 60 minutes, with an average heart rate of 160 and a max heart rate of 190. Pretty cool. My legs are tired, but I feel good.