Overacting because I can
Join Date: Jan 2005
Location: The Mean Streets of Bethesda, MD
Bikes: Merlin Agilis, Trek 1500
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I have had it recommended to me that the top end should be 1/4 of the weight of you plus your bike. For me, that's 45 lbs.
Last year I progressively when lower - to about 30psi on clinchers, at which point I was pinch flatting. This year I'm doing 35 front/40 back. Even at that, I did manage to pinch flat the rear going over a root as I was grinding around an off camber turn. Did the same turn 5 more times the next day at the same pressure and was fine.
Tubulars can get lower.
“Courage is going from failure to failure without losing enthusiasm." (Churchill)
"I am a courageous cyclist." (SpongeDad)