Originally Posted by
Bob Dopolina
I'm not paying for your tires or tubes so I really don't care what tire voodoo you follow.
I worked with Continental for several years and never heard the word 'tire drop' or any concept similar to it discussed. My guess is that it is something that comes to us from the automotive world where tire design and function differ substantially from bicycle tires.
Also note the thrust of the article is on comfort, not performance.
Others have already posted links to a more correct range of inflation.
Interestingly, the data that the graph was generated from comes from a study done by Frank Berto, which you can read here.
http://www.bccclub.org/documents/Tireinflation.pdf
He says that his inflation advice
"was based on discussions with the bicycle tire experts at Michelin, National, IRC, and Continental. They agreed that "Tire Drop" is the key criteria in matching tire size and inflation pressure to rider weight."
Frank Berto was either the engineering editor for Bicycling Magazine or a voodoo high priest, I forget which
