Posts tagged ‘garmin’

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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I left the house just under 30 hours ago and ridden 311 miles with well over 32,000 feet of climbing (the ibike under reports gain even more than the 1000). Easiest climb to get home. Plus my dead Garmin 800 still crashes every time I try to boot it up, presumably trying to load the in-progress #everesting 237 miles and 28,000 feet in. Thankfully I was using my Garmin 1000 to silence all the doubters who question the accuracy of my 800 and somehow trust the 1000 data because it's lower and that somehow makes it more accurate. Does anyone know how I can retrieve the file? Summit #everesting #fizik #stravaproveit just before the manatees.

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Brian Toone

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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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