Xplora wrote:Alex Simmons/RST wrote:http://alex-cycle.blogspot.com.au/2013/02/the-sum-of-parts.html
BWAHAHAHA If your event lasts less than 6 seconds, get the lighter wheel.
I think the real question is how much does 500 grams affect you on a 5 and 10 percent gradient, because gravity is the key. What is the 0/30 acceleration for 1000W on these gradients? What is the difference in speed and distance?
Of course, and my examples were specific to flat accelerations (since that's what was being "discussed").
When climbing one needs to account for changes in potential energy when making such comparisons. Gradient is already in the models, in these examples I just set it to zero. If you want to play with your own numbers, you can go to Tom Compton's site and knock yourself out.
On another day perhaps I'll do more examples of different scenarios, (certainly it's possible to feed in a detailed course profile and run the models over that) but really I have little need for that, I already have models for detailed time trial and triathlon bike leg pacing assessments (both for pre-race pacing strategy development and post-race pacing assessment) and the contribution of kinetic energy variances variances is pretty trivial in such events, and my models have stood up well when compared directly with time trial power files from professional riders to club amateurs. For the former I used data from David Millar and Marco Pinotti, who kindly make such data available.