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Join Date: Mar 2007
Location: SF Bay Area, East bay
Posts: 7,656
Bikes: Miyata 618 GT, Marinoni, Kestral 200 2002 Trek 5200, KHS Flite, Koga Miyata, Schwinn Spitfire 5, Mondia Special, Univega Alpina, Miyata team Ti, Santa Cruz Highball
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You using a tire pump gauge or a dedicated gauge? At work we had a preset test valve to calibrate our gauges. Seems the act of checking pressure would drop it by a pound or two. Anyway, at least it's not losing air.