Sailun S637 on 3200lb Capacity Wheels

JIMNLIN wrote:

Using this line of thought, is it safe to assume a rim with a 4,000 lb. load rating can safely handle 110 PSI of pressure? Or, put another way, do they make an 80 PSI tire with a 4,000 lb. load rating?

I'm not saying there isn't but I've never seen a 16" trailer wheel that was 4000 lb rated.
Now the 17.5" trailer wheels can handle that much load and 110 psi which is a good upgrade for folks with a heavy wheel loads and 7k axles.

Thanks for the info. Wasn't aware a 4,000 lb. rating was that much of a stretch for a 16" wheel/rim. I've seen 16" 4,000 lb. wheel/rims used OEM on some toy haulers.

To minimize all compatibility and safety issues on a very heavy rig, especially toy haulers, 17.5" is probably the way to go. I'm guessing the larger diameter 17.5" tires/wheels have the potential to create some clearance issues on units that originally came with 16's though.