I ma checking tire pressure religiously and keep F35 &R 33. Today after coming back from Hove Depot I noticed one of the tires appeared to be a “little flat”. Just enough to make me check the pressure again. I could not believe it – 14.5 psi! And it was barely noticeable. Added some air and a few hours later pressure holds. The tire does not seem to have any damage. Anybody with similar experience? It really puzzles me.