Best 255/40R21 Tires

Browse best 255/40R21 tires with 11 tire models available from $149.99.

Buy 255/40R21 Tires at Lowest Prices
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TireRack from $303.83
Discount Tire from $363.00
Priority Tire from $149.99
Simple Tire from $229.99

Best 255/40R21 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 $363.20

Best 255/40R21 Touring All-Season Tires

Touring all-season tires provide unparallel balance of good year-round traction, comfortable ride and longer tread life.

(4.6 out of 54.6) from $303.83

Best 255/40R21 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 $378.99

Best 255/40R21 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 $309.97
(4.7 out of 54.7) from $329.97
(4.6 out of 54.6) from $387.60
(4.4 out of 54.4) from $269.65
(4.4 out of 54.4) from $149.99
(4.4 out of 54.4) from $229.99
(4.3 out of 54.3) from $466.99
(4.3 out of 54.3) from $345.99

255/40R21 Tire Size Fitment

9 vehicles are equipped with 255/40R21 tires as original equipment. Select vehicle model to find best tires that fit.

255/40R21 Tire Size Specifications

255/40R21 is a Metric tire with a section or tread width of 10 inches, wheel diameter of 21 inches, and overall diameter of 29 inches. 255/40R21 tire has a circumference of 91.1 inches, making 695 revolutions per mile.

255/40R21 Section Width
10"
29"
255/40R21 Tire Side
Tire Circumference
91.1"
21"
4"
695 Revs/Mile

Overall Diameter: 29"

Tread Width: 10"

Wheel Diameter: 21"

Sidewall Height: 4"

Circumference: 91.1"

Revolutions per Mile: 695

255/40R21 Tire Size Conversion

255/40R21 in inches is equivalent to 29x10R21.

Replacement Sizes for 255/40R21 Tires

255/40R21 tire can be replaced with 26 compatible tire sizes. Select optional plus size to see available tire models.

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