You do not have decal/sticker on your frame, just ahead of your fuel tank on the right side? I start with the stated max imprinted on the sidewalls of my tires and tweak the pressure +/- a pound or two to my liking. Once you find what works for you, go to Costco and change out the air for Nitrogen and your pressures will pretty much stay there until you get new tires, regardless of Temp fluctuations and load differences. You should still check your tire pressures on a regular basis for safety precautions, because I abhor reading obits.
