phoenixR34 wrote:
hadukla wrote:
DarkSpeedWorks wrote:
Cool. I gotta try them someday.
But something that Nike does not tell you:
A 4% improvement in efficiency does not equal a 4% increase in speed.
I think the NYT article showed it to be fairly true
The NYT article showed they were 4% better than.. not sure exactly. It showed they were 1% better than the Nike Zoom Streak, on average. So technically you could call it the "Nike Zoom Streak 3%".
What Nike has never said is, the Vaporflys are 4% more efficient than what, running barefoot? Running in sandals? If it's *every* other shoe, then that doesn't say good things about the other running shoes they sell.
I'd have to look and see what the NYT article showed exactly.. but it definitely wasn't 4% better than everything else.
The article from NYT wasn't scientific though. Strava data is helpful to create data for an article. But that's a survey and not science when it comes to creating an experiment for you to actually find out.
Washed up footy player turned Triathlete.