Michelin TRX-B 220/55R390 Tires

Michelin TRX-B 220/55R390 SL 88W is a high performance summer tire.

Michelin TRX-B 220/55R390 SL 88W Tire Specs

220/55R390 is a TRX tire.

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

220 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 220/55R390 tire is 220 millimeters.

55 represents the aspect ratio of a tire, which is a ratio of the tire's sidewall height to its width. For 220/55R390 tire, the sidewall height is 55% of its tread width.

R denotes that 220/55R390 tire has radial construction.

390 represents the wheel diameter in inches that the tire is designed to fit. 220/55R390 can be mounted on rims with 390 inches in diameter.

SL denotes the load range of a tire. Standard Load or SL tires are typically found on passenger cars, smaller SUVs, and light trucks. These tires are designed to operate at standard inflation pressures and are not meant for carrying heavy loads.

88 indicates the load index. A tire with a load index of 88 can support a maximum load of 1235 pounds or 560 kilograms per tire.

W indicates the speed rating. A tire with a speed rating of W is approved for speeds up to 168 miles per hour or 270 kilometers per hour under optimal conditions.

Maximum inflation for Michelin TRX-B 220/55R390 tire is 51 psi.

Uniform Tire Quality Grading System (UTQG) rating for Michelin TRX-B 220/55R390 tire is 180 A A.

Tire manufacturer part number (MPN) is 90634.