Power King Towmax Vanguard ST235/85R16 Tires

Power King Towmax Vanguard ST235/85R16 F 128/124Y is a trailer tire.

Power King Towmax Vanguard ST235/85R16 F 128/124Y Tire Specs

ST235/85R16 is a Special Trailer tire. It also comes in a LT-Metric (LT235/85R16) and a Metric (235/85R16) variant

Let us decode each aspect of the tire size code to have a full understanding what this tire size means.

ST indicates that ST235/85R16 is a trailer tire.

235 is a section width of the tire from one sidewall to the other. Tire tread width is typically a bit narrower than the section width. Section width of ST235/85R16 tire is 235 millimeters.

85 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For ST235/85R16 tire, the sidewall height is 85% of its tread width.

R denotes that ST235/85R16 tire has radial construction.

16 represents the wheel diameter in inches that the tire is designed to fit. ST235/85R16 can be mounted on rims with 16 inches in diameter.

F denotes the load range of a tire. Load Range F is equivalent to a ply rating of 12. However, modern tires don't necessarily have 12 physical plies. These tires are generally rated for a maximum inflation pressure of 95 psi, and are commonly used in commercial and industrial settings, where vehicles frequently carry heavy loads or operate under strenuous conditions. They are found on larger trucks, trailers, and some RVs.

128/124 indicates a dual load index, meaning a tire can be used in a single or a dual application. For a single application, load index of 128 can support a maximum load of 3968 pounds or 1800 kilograms per tire. For a dual application, load index of 124 can support a maximum load of 3527 pounds or 1600 kilograms per tire.

Y indicates the speed rating. A tire with a speed rating of Y is approved for speeds up to 186 miles per hour or 299 kilometers per hour under optimal conditions.

Tire manufacturer part number (MPN) is MAXV18.