I rode my bike to work: 1:52:11, 20.50 miles, 11 mph, HR=146. I got a flat tire at mile 19.5 and walked the last bit. I hope to start the return trip from Tony’s house on the other side of I-94 and eliminate the most dangerous part. And home, starting from Tony’s house and taking the Trail instead: 2:00:02, 24.2 miles, 11.9 mph, HR=133. . I wonder why the lower heart rate coming home? 146 to 133 is a big difference. The ride home was warmer. Stress from traffic? Simply becoming more comfortable with the bike?