Best 285/40R21 Tires

Browse best 285/40R21 tires with 10 tire models available from $209.99.

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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.

(4.7 out of 54.7) from $272.99
(4.6 out of 54.6) from $411.00

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.

(4.4 out of 54.4) from $305.99
(4.1 out of 54.1) from $378.50

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.

(4.4 out of 54.4) from $398.99

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.

(4.7 out of 54.7) from $367.26
(4.6 out of 54.6) from $409.59
(4.4 out of 54.4) from $312.58
(4.4 out of 54.4) from $209.99
(4.3 out of 54.3) from $335.20

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.

285/40R21 Section Width
11.2"
30"
285/40R21 Tire Side
Tire Circumference
94.2"
21"
4.5"
673 Revs/Mile

Overall Diameter: 30"

Tread Width: 11.2"

Wheel Diameter: 21"

Sidewall Height: 4.5"

Circumference: 94.2"

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.

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