Single or dual axle trailer for a 20

[Bushwacker]

Originally Posted by Vezo, Part II

10 ply radials.

Those may be load range E tires, which should be overkill for a 20' SeaCraft.

The load capacity info you want is molded right into the sidewall. On my tires it says:
"LOAD RANGE E, MAX LOAD SINGLE 2830 LBS @ 80 PSI MAX PRESSURE" These are ST 225/75R15 steel belted radials I bought this July; doesn't say how many plies it has.

My spare, 1 of 2 tires previously on trailer and similar to what it came with new, is a bias ply: (Tread: 5 ply nylon, sidewall: 4 ply nylon; 8 ply rating) Label says:
"LOAD RANGE D, MAX LOAD 2540 LBS @ MAX INFLATION PRESSURE 65 PSI"

Original tire load capacity of 5080 lbs is pretty close to axle rating of 5000 lbs (5000 lb axles typically come with 6 lug wheels which mine has); the galvanized steel EZ Loader roller style trailer weighs about 900 lbs, and trailer is rated for a 4000 lb boat.

Based on my tow over to Homosassa from NPB and back for the Scallop gathering, my gas mileage was about 5% better than normal, so I believe the steel belted radials do indeed have a bit less rolling resistance.