I have a 2009 Sundowner two horse slant load bumper pull with front tack room. Tires are very good on it and it also has a spare tire for it that is mounted in the tack room. It uses a 2 and 5/16 ball. Trailer is in very good shape, only reason for us selling it is we no longer have horses. It is a very nice pulling trailer. Don't think you will find one in nicer shape.