What size trailer do I need? Jim Curtin March 02, 2019 01:28 Updated Please see our filtering criteria on in our Personal Watercraft section. Can't find what you're looking for? Submit a support request here. Related articles What is the difference between torsion and spring axles? How do I purchase parts for my trailer? What size trailer do I need? Should I purchase Painted, Galvanized, or Aluminum? How much weight can my trailer carry?