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Josh-D. S. Davis

Xaminmo / Omnimax / Max Omni / Mad Scientist / Midnight Shadow / Radiation Master

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2014-06-16 CCC IBC Ride
Josh 201604 KWP
OMG, the wind!  17016G25. We cut the ride short because the wind totally blew.

Used a couple of calculators to figure out a reasonable fudge factor for windspeed, at least on the Irving ride (43%):
Calculate grade from feet & miles: http://www.csgnetwork.com/inclinedeclinegradecalc.html
Calculate energy from a pile of stats: http://bikecalculator.com/what.html
The food energy is WAY off on this one, but that's okay.

Strava is of course WAY off on Watts because they don't detect wind. I'll have a direct force watt meter next month, my all of the geeky stats will be more accurate. It's a Stages power meter, so it'll be accurate to within about 4 watts. It sends 4Hz updates, and my Garmin will only pick up 1Hz, but whatever. It looks like Stages lags by a fraction of a second, but it reports zero watt events that are missed by others. (ie, resting/coasting/standing). It also automatically handles temperature changes and hard effort shifts without requiring recalibration that most others need. The best part is that it's the lowest cost unit out there. It assumes both legs put out equal power, but in general, riders vary by up to 4%. That's more than accurate enough for my needs.

The DFPM will also provide a more accurate cadence for anything 30rpm and above. I need to figure out how I'm going to manage the speed sensor without cadence enabled, or if I need a different sensor.

Distance: 22.72 mi
Calories: 1,662 C

Time: 1:20:12
Moving Time: 1:19:51
Elapsed Time: 1:42:22

Avg Speed: 17.0 mph
Avg Moving Speed: 17.1 mph
Max Speed: 27.7 mph

Elevation Gain: 879 ft
Elevation Loss: 883 ft
Min Elevation: 433 ft
Max Elevation: 581 ft

Avg HR: 148 bpm
Max HR: 177 bpm

Avg Power: 485 W
Max Power: 1,300 W
Max Avg Power (20 min): 549 W

Avg Bike Cadence: 83 rpm
Max Bike Cadence: 129 rpm

Avg Temperature: 93.8 °F
Min Temperature: 87.8 °F
Max Temperature: 96.8 °F