Silver-gray modular wheel ("mod"): A painted steel wheel with round ventilation holes. It's commonly used on utility, boat, cargo, and travel trailers because it's durable and affordable.
205/75R15 tire:
205 = tire width of 205 mm.
75 = sidewall height is 75% of the tire width.
R = radial construction.
15 = fits a 15-inch wheel.
Rainier tire: The brand/model of the trailer tire.
8-ply: Usually indicates a Load Range D, providing higher load capacity and stronger construction for towing heavy loads.
5 on 4.5: The wheel has 5 lug holes arranged on a 4.5-inch bolt circle, a common bolt pattern for many trailers.
Its function is to provide a strong, load-rated wheel and tire combination that supports the trailer's weight, offers stability, and withstands highway towing.
