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American Classic Radial | 440/450R21

Expected Delivery - November 17, 2026

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440/450R21 Model A Plus Bias Look Blackwall Tire

Designed to fit 1928 and 1929 Ford Model A cars and trucks, as well as other late 1920's vehicles, the new American Classic Model A+ Bias Look Radial offers the vintage look of a bias ply tire with the ride quality and safety of a modern radial tire. The 440/450R21 tire is a direct replacement for your bias ply tires, and makes a huge difference in drivability and handling. The steel belted radial is made in the USA, and offers the authentic look of a smooth white sidewall.

Blackwall Tire

Since the introduction of carbon black rocked the tire industry, the original recipe for most tires has been a solid black sidewall. For classics and collector cars alike, it's hard to beat the no-nonsense appeal of a classic blackwall style tire. British sports car, classic truck and even hot rod enthusiasts love the way a nice period correct blackwall tire looks on their vehicles.

Bias Look Radial Tire

The term "bias look radial" is something that Coker Tire created when we introduced the American Classic bias look radial product line. This means the tire has the appearance and the sizing profiles of a vintage bias ply tire, with modern radial construction. This provides an original look with a smooth ride and longer tread life, compared to bias ply tires. We offer bias look radial tires for vehicles ranging from the 1920's through the 1970's.

American Classic Model A Plus Bias Look Tires

The American Classic Model A radial tire is manufactured in authentic sizing for 19-inch and 21-inch Model A wheels, and it’s designed to look like an original bias ply tire. Choose between black sidewalls and wide whitewalls to personalize your Ford Model A.

American Classic Tires for Collector Cars

American Classic radial tires includes P-metric radials (such as 235/75R15) and the famous "bias look radial" (such as 670R15). American Classic radial tires are offered in wide whitewall, narrow whitewall, and black sidewall in select sizes, developed specifically for 1940's, 1950's and 1960's classic cars. These tires feature a classic tread design and a beautiful sidewall that's built into the tire from day one of production.

Please Note

  • Bias Look Radial tires feature genuine radial tire construction with bias ply tire size, profile and styling. These tires are built in brand new molds using modern materials and tooling. Typically the sizing is the same as their Bias Ply equivalents with the addition of 'R' in the size value. Tire mounted on wheel for demonstration purposes only. Wheel and other accessories are not included. Please note that dimensions listed (tread width, section width and overall diameter) are non-scientific and based on an inflated tire, mounted to a wheel. Dimensions may vary due to rim width and inflation pressure. Please note Chemical Guys Tire and Rubber Cleaner and Adams Polish Tire shine has been linked to Whitewall browning and should not be used. We recommend using our line of tire care products.
SPECIFICATIONS
SKU 700328
Weight 22.000000
Availability Date 2026-04-30T00:00:00Z
Brand American Classic
Tire Construction Bias Look Radial
Tire Series Model A Plus Bias Look
Sidewall Style Blackwall
Product Size 440/450R21
Tread Width (IN) 3.50
Tread Depth (32nds) 12
Rim Diameter 21 inch
Width Bias Look Radial 4.40/4.50
Radial Aspect Ratio 90
Overall Diameter (IN) 31.70
Section Width (IN) 4.50
Rim Width (in) 2.50 - 3.50
Max Load Capacity (LBS) 800@35 psi
DOT Approved Yes
Tube Type or Tubeless Tube Type

This American Classic Radial comes in the 440/450R21 size, suitable for the classic and collector vehicles listed below.

About the 440/450R21 Tire Size

The 440/450R21 is a specialty radial tire size associated with classic and collector vehicle applications. This American Classic Radial is offered in the 440/450R21 size, giving shoppers a direct connection between the product and this radial fitment category. For more detailed information on this tire size, explore the 440/450R21 tire on Coker Tire Fitment Guide.

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