Coach D wrote:
So it comes to roughly 0.28% per ounce, or for a 4:20 miler, you gain 1.5-2 seconds over a more conventional mid distance shoe weighing 5.2-5.5 ounces.
That abstract says that the effect of economy is 1% per 100g. It says nothing about how that 1%/100g translates to improvement in time.
locked up wrote:
I would like to know what size of this shoe is 3.2oz. There is no way that size 8 weighs the same as size 13. Anyone have any insight on this?
I'm going to guess its a size 9. Depending on the company, prototypes are generally size 9 or 9.5.
Bump...back then going down in weight was the big trend, following the minimalist movement.
Anyone have a link to that study of shoe weight vs performance? It seems spikes and flats are going back up in weight. For example, Nike spikes are heavier (Matumbo 1 vs 3, Victory 1 vs 3) and flats are about 6 oz instead of dipping under 5 oz. Other companies have followed the suit; the ultraminimalist spikes and flats are disappearing (New Balance 5000 comes to mind, as well as the Saucony Endorphin LDs). What's the new technology? Higher energy return with Boost and that ZoomX foam?
This old thread is interesting. Adidas spikes are up to an ounce or more heavier than victory 1s and 3s. The victory 2s are a bit heavier. Does this have a considerable impact on performance ? Or is the difference between Nike spikes and Adidas spikes negligible? Does the distance matter? 800-1500 vs. 5k-10k?