Best 285/40R21 Tires
Browse best 285/40R21 tires with 10 tire models available from $209.99.
Best 285/40R21 High Performance All-Season Tires
High performance all-season tires offer a balanced blend of good handling, year-round traction and treadlife.
Best 285/40R21 High Performance Summer Tires
High performance summer tires offer a perfect blend of good handling, dry and wet traction and decent tread wear.
Best 285/40R21 Ultra High Performance All-Season Tires
Ultra high performance all-season tires provide very good performance on dry and wet roads, as well as adequate winter traction.
Best 285/40R21 Ultra High Performance Summer Tires
Ultra high performance summer tires are designed for agile handling on dry and wet roads with good ride quality and decent tread life.
285/40R21 Tire Size Fitment
3 vehicles are equipped with 285/40R21 tires as original equipment. Select vehicle model to find best tires that fit.
285/40R21 Tire Size Specifications
285/40R21 is a Metric tire with a section or tread width of 11.2 inches, wheel diameter of 21 inches, and overall diameter of 30 inches. 285/40R21 tire has a circumference of 94.2 inches, making 673 revolutions per mile.
Overall Diameter: 30"
Tread Width: 11.2"
Wheel Diameter: 21"
Sidewall Height: 4.5"
Revolutions per Mile: 673
285/40R21 Tire Size Conversion
285/40R21 in inches is equivalent to 30x11.2R21.
Replacement Tire Sizes for 285/40R21
285/40R21 tire can be replaced with 21 compatible tire sizes. Select optional plus size to see available tire models.