Old 10-22-13, 05:57 PM
Bill Kapaun
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Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
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Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

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Originally Posted by njkayaker View Post
All of them do, indirectly. The radius (the height of the hub center from the ground) is the thing directly affected by load and air pressure. It would seem that the difference he's getting is close to the differnce you'd see between a loaded and unloaded tire.
And they all pretty much use circumference DIRECTLY!
I don't know why you want to go off on a tangent? Did you just learn about PI?
2% is 2% no matter what method you use!
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