My PJ is a 14 footer. It started out as a lo-pro. My dealer got them to up grade the axles to 8,000 lbs . The tires are 215-75-17. 5. They are rated for 4805 lbs single. The GVW is 18,500lbs. I wanted the extra gross for a little breathing room, as I haul 2 cords of log length firewood at a clip. Around here hardwood averages about 5500 lbs per cord. My old trailer had a direct lift piston on the dump, and was Hell for stout. The low pro doesn't have room for a direct acting piston, so it comes with a scissor hoist. It's not quite as strong.