My problem is I have to ride to get somewhere I can adjust tyre pressures. By this time, the tyre has warmed up. And as we all know, tyre pressures should be measured when cold. I can't spring for an air compressor at home (maybe if I hadn't gone for the Triumph... damn them for making such an addictive bike!). So my question is this: Say I measure the pressure when cold and it is 2 psi off (33 instead of 35 for example). By the time I get to the service station, for example it may read 35 psi (an increase of 2 psi). Would I be correct in assuming the correct psi would now be 37 psi to bring the tyres up to the correct pressure?