Hill Climb calculator

Triathlon Forum
1

Did 4 repeats of a 8km hill (avg grade 7.6%) time and corresponding average power and corresponding time was

  1. 32:58 297watts
  2. 31:48, 306 watts
  3. 31:28, 310 watts
  4. 32:04, 301 watts

I weigh 160lb. Is there a calculator out there that will tell me how much faster I will do this climb if I lose 5lb? 10lb?

2

http://www.analyticcycling.com/ForcesSpeed_Page.html

edit to say those are some pretty solid efforts there. I have similar (slightly higher actually) power numbers for an all out effor on a hill that’s about 2/3 as long. And I weigh 10 lb more.

3

Did 4 repeats of a 8km hill (avg grade 7.6%) time and corresponding average power and corresponding time was

  1. 32:58 297watts
  2. 31:48, 306 watts
  3. 31:28, 310 watts
  4. 32:04, 301 watts

I weigh 160lb. Is there a calculator out there that will tell me how much faster I will do this climb if I lose 5lb? 10lb?
Turning it all into metric, 608m height gain in 32 minutes for 82kg rider+bike is 253W against gravity (according to the back of my envelope) and around 50W for everything else if your powermeter is correct. Losing 10lb would save about 15W against gravity, and another couple of watts for rolling resistance. Which could be upwards of 90 seconds saved, assuming you have 10lb to lose with no downsides on power output.