Hot-Dipped Galvanized trailer wheels are ideal for saltwater environments where corrosion is a serious issue. This galvanized trailer wheel is great for small boat trailers or hauling trailers and will outfit 8 inch trailer tires. This 4 Bolt Wheel has a carrying capacity of 910 pounds per wheel. The most common trailer tire sizes mounted to this 8 in trailer wheel are 4.80 x 8 and 5.70 x 8. This rim is 3.75 inches wide.