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Re: Tire Pressure Poll [BobAjobb]
BobAjobb wrote:



Please tell me if I read this right... from the 2nd graph... I'm on ok-to-rough ashphalt mostly (rare to have concrete road surfaces where I live...I'd read it as being best off around 90-100psi.


Yes, assuming the bike-and-rider combined weight is ~same as the test (190lbs/86kg), you're on the same tires (25c GP4000S) mounted on similar internal width wheels (test wheels were Zipp 404 Firecrests, 16.5mm).

Change any one parameter (weight, tire, wheel width, surface) and the graph is going to change. Whatever the trace, t's better to error on the side of low than high, as the slope is steeper past the impedance inflection point.

"They're made of latex, not nitroglycerin"
Last edited by: gary p: Aug 28, 19 15:55

Edit Log:

  • Post edited by gary p (Dawson Saddle) on Aug 28, 19 15:51
  • Post edited by gary p (Dawson Saddle) on Aug 28, 19 15:53
  • Post edited by gary p (Dawson Saddle) on Aug 28, 19 15:55