I got up early and decided to go to a spin class before the girls woke up. I noticed my heart rate monitor died, taking with it a month of data. Before spin class I tried making one good HRM out of three broken ones. No luck. I have been using a Polar 720i HRM for 6 years. I'm on my fourth one. I keep getting the same model because I want to keep the same data base; there is something satisfying with graphing 6 years of data. Polar stopped making this monitor a few years ago. I checked ebay. No 720i HRMs. I think I had the last working 720i.
I went to spin class without my heart rate monitor. I rode hard but couldn't verify this by looking at my heart rate. And I won't have any data to save and graph. Frustrating. I need my HRM to validate my effort. I need constant validation. Quirk number 164 if anyone is counting.