Originally Posted by
CheGiantForLife
I see. The variable is then speed. The 2 inclines will have varying speeds.
But, for a constant speed, each 1% of incline is a 10x increase in work.
But, if I plug in wild guess speed estimates, the data makes no sense
15mph at 0% = 100w
3mph at 10% = 100w
No way slow 10% is the same work at easy flat riding
Way. See below article for the various terms in the power equation.
Cycling: Uphill and Downhill
The gravity term is giMs, where g is gravitational constant, I is incline, M is combined mass of bike and rider and s is speed of bike.
Put in the SI units carefully amd you will get the right number. I climb at about 300 watts on most hills and about 250 watts will usually be gravity work, but it varies depending upon if it’s shallow enough that my speed makes the air drag term significant. At 16 mph, I would be needing about 135 watts for the air drag and rolling friction terms.
Otto