when I put the bike away last year I noticed a nail head , tack head or something in the rear tir . Didnt ride much over the winter . Got the bike out a while back and have been rideing alot no problems . Then I rememberd the nail , pressure is fine . I'm afraid to pull it out and start a leak until I can get a new tube and a new tire , need a new tire anyway . My queation is : If the nail was long enough , aftyer all tis time and rieing dont you think it would have lost air pressure by now ? I know I should pull it but if it starts leaking thats no rideing .