Found a cool new strava toy the other day (go to relive.cc and link your strava if you want to try it out). It does a cool satellite replay of your ride. Here's an example from this morning:
https://www.relive.cc/view/616185822
https://www.relive.cc/view/616185822
I reckon it's way cooler on long rides... 21 miles is sort of brief. In other news my HR monitor seems to be monitoring low these days. Or my heart isn't working.