Looking to replace that old worn tire for a updated tire that will get the job done. Maybe that old rim is looking rough as well. Get into a progressively designed bias ply tire that was built to handle the terrain. Stronger side walls and superior tread performance will make this tire last for you. Match that with a hot-dipped galvanized rim and you have a ideal set-up for your single axle boat trailer. Check the tire specs to match up the total carrying capacity of the tires with what your towing!
Tire Specs:
Mounted on a 4 Bolt (4 on 4) Galvanized 13 x 4 wheel
Load Range C
Side Width 6.6
Overall Diameter 24
Carrying Capacity 1360
Max p.s.i 50