Tire is slowly losing air
Tire shop, or dealership. They'll dunk the tire in a tub of water and find the hole. Or, you could get some soapy water in a spray bottle and find it yourself. Not much point, if you can't fix it yourself, though.
I asked a ref if he could give me a technical foul for thinking bad things about him. He said, of course not. I said, well, I think you stink. And he gave me a technical. You can't trust em. -
"One of the reasons I left Sabbath is Van Halen was blowing us off the stage every night. It was embarrassing." Ozzy