Originally Posted by oboeguy
My "field test" is riding-up "l'Alpine d'Huez" about 9 miles north of the GWB. It's only 2km long if you start from the river level but it's a good test at 7% grade, using a HRM to stay within my limit (Lance's test portrayed in I thank "Lance Armstrong's War" was a 1km hill outside of Girnoa at 10%).
Interesting. I always shoot to average at least 10mph up that hill for my Nyack rides. Since it's at the beginning of a much longer ride, I usually try to keep myself at a reasonable HR. That calculator is telling me I'm putting out 328 watts up the hill if I average just 10mph. At 71.3kg, that's a 4.6W/kg over a 12 minute period.
Are you sure it's a 7% avg grade? 4.6 seems to put me higher on that chart than I would have expected. I am going to get my USCF license this year and I want to start racing, but I'm doing the ALpine d'Huez test this weekend to get a mor accurate reading.