On Apr 11, 11:01 am, George Schick <[email protected]> wrote:
> An item of curiosity:  the referenced
> article from BQ, upon which the calculator is based, has a paragraph
> that credits Frank Berto for measuring the tire drops of various tire
> sizes in order to come to his "15%" conclusions.  Does anyone know if
> this is more or less true across the board for all tires of a given
> size (width)

The answer is no. The chart is an average. Frank Berto sent me all his
test data.  I am working my way through hundreds and hundreds of
datasheets, and hopefully soon will report on this more in Bicycle
Quarterly.

Jan Heine
Editor
Bicycle Quarterly
2116 Western Ave.
Seattle WA 98121
http://www.vintagebicyclepress.com

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