So yesterday before I went to bed I got my bike all ready to go. Checked air in the tires filter oil started the whole deal so that I could wake up first thing this morning and go. To my surprise this morning at 5am my front tire that had 13 psi last night now was flat. I figured hey maybe when i checked the pressure the valve stem stuck and leaked out. Wrong theres a tear or a hole in the tube???? Bike was sitting on a stand tires off the ground nothing touched it. Tube has been in for over a month with 5 or 6 rides no problems. How do you get a flat like that???? So frustrating needless to say I ended up missing my pre work ride.