The world's first line of radial tires offered in sizes and styles to replace popular bias ply profiles. The Stahl Sport Radial from Excelsior Tire is inspired by vintage competition tires and is equally at home on vintage racers as it is on hot rods. This tire has also become very popular on deuce coupes, Model A hot rods and roadsters. Excelsior Tires are made in the USA and DOT/ECE (European Community) approved. Please note that dimensions listed tread width, section width and overall diameter are non-scientific and based on an inflated tire, mounted on a wheel. Dimensions may vary due to rim width and inflation pressure.
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.
S Speed Rated: Up to 112 mph (180 km/h). Often required OE for higher performance trim level classic automobiles.
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.
Excelsior tires feature vintage race designs in DOT approved tires that are excellent for restored race cars, hot rods and custom builds. The Excelsior Stahl Sport Radial is an incredibly popular vintage race-styled tire with a completely modern radial tire construction inside. The Stahl Sport Radial is extremely popular with hot rodders who love to drive their cars, both for their stylish good looks and for their long-wearing performance on the road.
Excelsior tires have a rich history intertwined with early motorcycle manufacturing. The Excelsior Motor Manufacturing & Supply Company, established in Chicago in 1907, entered the motorcycle market and by 1909 was producing models like the Autocycle, known for its efficient lubrication system and impressive fuel economy.
Today, the Excelsior tire brand is preserved through companies like Coker Tire, which specializes in vintage-style tires for classic vehicles. Coker Tire offers a range of Excelsior tires, including the Excelsior Stahl Sport Radial, designed to provide modern performance while maintaining a classic appearance.
These tires are popular among vintage car enthusiasts seeking authentic aesthetics combined with contemporary reliability. The continued production of Excelsior tires ensures that the brand's legacy endures among collectors and restorers of classic automobiles.
| Brand | Excelsior |
| Construction Ply | 6 PLY POLY/STEEL |
| GTIN | 00842199101881 |
| Load Index | 94 |
| Max Load Capacity | 1477@44 psi |
| Overall Diameter | 32.10 |
| Radial Aspect Ratio | 90 |
| Rim Diameter | 21 in |
| Rim Width (in) | 4.00 - 5.00 |
| Section Width | 5.80 |
| Sidewall Style | Blackwall |
| SKU | 789651 |
| Spec DOT Approved? | Yes |
| Speed Rating | S |
| Tire Construction | Bias Look Radial |
| Tire Series | Stahl Sport Radial |
| Tire Size | 550/600R21 |
| Tread Depth (32nds) | 12 |
| Tread Width | 4.00 |
| Tube Type or Tubeless | Tube Type |
| Width Bias Look Radial | 5.50/6.00 |
