I had 5 flat tires on only 700 miles of road and paved trails. I am not real happy with the stock tires and was wondering what would be a better replacement? I also have had a problem with the rear fender. The fender literally broke in half and was replaced under warranty. Also all the clips that hold the wire for the rear light have fallen off at one time or another Now the replacement fender has a small crack in it. It was suggested to me to put a smaller tire on to give more clearance between fender and tire. Any one know of what make and size of tire they would recommend