Power King Towmax Vanguard ST235/85R16 Tires

Power King Towmax Vanguard ST235/85R16 E 125/121N is a trailer tire.

Power King Towmax Vanguard ST235/85R16 E 125/121N 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.

E denotes the load range of a tire. Load Range E is equivalent to a 10-ply rating, but this doesn't mean the tire actually has 10 physical plies. These tires are generally rated for a maximum inflation pressure of 80 psi, and are commonly used on vehicles that carry heavy cargo or tow trailers, such as full-size vans, pickup trucks, and larger SUVs. They are also found on commercial trucks and RVs.

125/121 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 125 can support a maximum load of 3638 pounds or 1650 kilograms per tire. For a dual application, load index of 121 can support a maximum load of 3197 pounds or 1450 kilograms per tire.

N indicates the speed rating. A tire with a speed rating of N is approved for speeds up to 87 miles per hour or 140 kilometers per hour under optimal conditions.

Tire manufacturer part number (MPN) is MAXV17.