I went to do some work on my bike tonight and noticed I had a flat. Rode it yesterday, and it was fine. I figured I must have picked up a slow leak, so I reinflated, went to the bath tub and put some water on the tire to look for bubbles. Nothing popped up immedietly, but then I noticed liitle micro bubbles coming out along the sidewalls. Tie is Maxxis Detonator, tube is Conti race. Is this normal? Doesn't seem like it should be. Inflation was 120 lb/in^2. Would appreciate anyone's insight.