I rode with my GPS to work this morning to try to figure out what the actual MPH are. It was very unscientific, but here's what I found:
Speedo 35mph = 33.0 mph gps
Speedo 40mph = 36.5 mph gps
Speedo 65mph = 59.5 mph gps
Speedo 77mph = 70.0 mph gps
My speeds varied a few mph so I...