Ive owned vehicles all my life and never had to put air in tires on a weekly basis. What is up with bicycle tires n tubes nowadays? Ive done the spit test on the valve stems and both front and back dont leak. Mysteriously though every weekend my tires lose 30 psi, Im scratching my head and its a pain in the arse. Do I need to do an air dance or pray to the tire gods or what?.............Someone is stealing my AIR!