Cycling Training · Public discussion

Watts calculation for TT ride data?

Started by azdroptop · · Last activity · 3 posts · 1,216 views

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Cycling Training
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12 June 2007
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12 June 2007
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azdroptop
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  1. Just wondering if I can estimate watts from a recent 40k TT? I messed with the calculator at analyticalcycling, but came up with 470! I know that can't be right so I'm wondering if anyone has a different method?

    40K TT
    Time: 61:29
    Wind speed Avg 3.1, Max 4.6 (Mostly a Head wind going out)
    Elevation: +410 going out, -397 return (24.39 miles of Flat)
    175 crank arm at 95rpm avg
    Avg HR 167(Max 185ish)
    Areo bars, aero frame, Mavic SL's front, rear.
    Weight = 178lbs, bike around 20 with bottles and such

    Any input would be great. I'm a cat 5

  2. azdroptop said:


    40K TT
    Time: 61:29

    I'd guess you entered something wrong. But having seen results and power files from a couple folks - it appears to take 300-320ish watts at your weight to get around the 1 hr mark on a flat/straight/calm wind course.

  3. NomadVW said:

    I'd guess you entered something wrong. But having seen results and power files from a couple folks - it appears to take 300-320ish watts at your weight to get around the 1 hr mark on a flat/straight/calm wind course.


    Thank you! Appreciate the input.

    Rick

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