Daily Archives: 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.