I adjust tire pressure by trial and error. I look for comfort first then rolling resistance. Once I find the optimum pressure for a given set of tires I inflate to that pressure each ride. Those pressures do vary from model and brand and bike I ride. My 32 mil Challenge Strada Bianca's and 27 mil Paris Roubaix's like 80 front and 85 rear on my Wabi fixed gear bikes. My Specialized 27 mil SWorks on my old Pinarello ride 90 front and 95 rear.


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