Well Day #1 of the 2011 Fall Ride is history. My cyclometer says 68.70 miles with an average of 11.7 MPH. I can't remember ever having such a low average on any length of ride. Perhaps the fact that I was occasionally walking the bike up hill accounted for this. Anyhow my maximum speed was somewhere north of 40 MPH and I did use my brakes a lot.
The cue sheets claimed that the total climb for the day would be 2200 feet. That is just a summation of all the up hills with no subtraction for the coast downhill. I talked with several riders who have the Garmin Edge GPS on board. They said that they recorded 4900 feet of climb for the day. I think Garmin uses an altimeter for this computation where the software CNC uses probably uses contour map data. I would like to believe the Garmin data.
Several years ago Ken Court gave me a wristwatch heart rate monitor. I mounted the display next to my cyclometer. I set the alarm to go off at 120 beats per minute. I had to turn the alarm off before I got out of the hotel parking lot. I got some pretty scary (to me) readings during the day but I think they were accurate since my resting rate now is 83 which is only 20 over normal. I set a limit of 160 where I would stop and rest. Maybe a good sign was toward the end of the day with the most stressful hills, I rarely got over 145. But I had to stop for other reasons.

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