Archive for August 24, 2012

Chased by the satellites

Fast downhill turns
in Mountain Brook
One of the fastest deceleration
spots in town

Yesterday I put my race wheels on my bike to get ready for the River Gorge races this weekend. I have a hard time getting a wheel speed magnet to stay on my front race wheel, so most of the time I run my race wheel without a speed sensor. The Garmin is usually pretty accurate in calculating speed from satellite measurements. But if you pick the right route with really fast, sharp turns you can play a game where you are trying to outrun the satellite signal. You can get some crazy max speeds as the signal catches up to you. Once I managed to hit 80mph on a 55mph descent. On today’s ride that same descent registered as 64.6mph, when the actual speed was probably closer to 53mph. Here are some annotated screenshots from today’s ride.

August 24, 2012 at 1:59 pm Leave a comment


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Samford at 400watts across the top of Vestavia Dr Josiah got a base hit to the outfield!!! Injured pitcher, all the Mets kneeling, JT was ok but took line drive to the arm hard.

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Quick reference stats

Anaerobic Threshold:
Power:315 watts
Heart rate:180 bpm
Maximums:
Power:1097 watts (5s)
Heart rate:198 bpm (5s)
AT power estimated by critical power curve in Golden Cheetah, which predicts I should be able to maintain 315 watts for 1 hour.

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