OK I had a wierd surprise when I woke up , I changed the tires on my Cargo bike to touring tires to make it faster to get to trailer camp sites I also redid the the trailer wheels cause the were rusting all to sh*t I cleaned them and used the new tremclad rust paint ,any how I came down and found the valve blown right out of the rim? I did not over inflate the tire I did'nt even get to ride it what would cause that ?