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Excelsior | 450-19

Expected Delivery - October 30, 2026

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450-19 Excelsior Bias Ply Blackwall Tire

Excelsior Tires offer beautiful European styling and design in an extensive range of beaded edge and straight side wall sizes. Excelsior tires feature durable nylon cord construction. These tires feature authentic antique tire tread designs and sidewall markings and are an excellent choice for antique restorations. 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.

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 Ply Construction

Bias ply tire construction is a method that was used from the 1900's through the 1970's on passenger cars and light trucks. Bias ply tires feature ply cords that run at a 45 degree angle to the bead, and overlap in a crisscross pattern, depending on how many ply layers are used. This creates a strong tire, but bias ply tires have a tendency to follow breaks or ruts in the pavement. Bias ply tires are the most authentic choice for classic car restorations and traditional hot rod builds. Coker Tire offers a huge variety of bias ply tires for many applications.

Excelsior Bias Ply Tires

Excelsior bias ply tires offer hard-to-find sizes and styles for a wide variety of American and European classic cars. This size selection includes fitments for metric rims, and other unique European sizes.

Excelsior Vintage Tires

Excelsior tires feature vintage designs that are excellent for restored race cars, hot rods and custom builds. The Excelsior Roadster Radial is an all new Bias Look radial designed to look exactly like a bias ply and still provide great radial performance. This revolutionary tire works for both the Hot Rod and Restoration enthusiast segments. 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. From authentic Bias ply tires to cutting edge innovations for collectors, there's an Excelsior tire for your Antique application.

Please Note

  • 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 72900
Weight 18.000000
Availability Date 2026-10-30T00:00:00Z
Sidewall Style Blackwall
Tire Construction Bias Ply
Construction Ply 4 PLY NYLON
Tire Series Excelsior Bias Ply
Speed Rating P
Rim Diameter 19 inch
Tube Type or Tubeless Tube Type
Product Size 450-19
Width Bias Ply 4.50
Brand Excelsior
Load Index 69
Section Width (IN) 4.25
Rim Width (in) 2.50 - 3.00
Overall Diameter (IN) 27.75

This Excelsior comes in the 450-19 size, suitable for the classic and collector vehicles listed below.

About the 450-19 Tire Size

The 450-19 is a vintage bias-ply tire size associated here with late-1940s MG Midget applications, spanning 1947 through 1949. This size connects directly to the Excelsior | 450-19 product for shoppers looking at period-style fitment in a 19-inch bias-ply tire. For more detailed information on this tire size, explore the 450-19 tire on Coker Tire Fitment Guide.

Vehicle Fitment for the Excelsior | 450-19

The Excelsior | 450-19 is available in a tire size associated with select classic and collector vehicles. The vehicle applications below are organized by year, make, and model to help identify vehicles associated with the 450-19 size. Explore the linked Make & Model and Year Make & Model pages for more detailed fitment information.

Fitment information should be verified for the specific vehicle before purchase. Confirm tire size, wheel fit, load requirements, overall diameter, and available clearance.

1946–19501 make · 3 fitments

The 1946–1950 period includes MG applications associated with the 450-19 tire size. This range centers on MG Midget fitments from the late 1940s.

MG

MG applications in this period include the Midget.

Frequently Asked Questions

Fitment & Compatibility â–¼

Will the Excelsior 450-19 Bias Ply Blackwall Tire fit my antique vehicle or restoration project? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire is designed for antique vehicle applications that require a 19-inch rim diameter tire with a period-correct appearance. The tire measures 4.50 inches in bias sizing, with a listed section width of 4.25 inches and an overall diameter of 27.75 inches. These dimensions make it suitable for vehicles originally equipped with narrow 19-inch wheels within the listed 2.50 to 3.00 inch rim width range.

Before installation, confirm your vehicle’s wheel specifications, clearance requirements, and original tire sizing. The Excelsior 450-19 Bias Ply Blackwall Tire uses tube-type construction, so proper tube selection and wheel compatibility are also required for safe operation.

Can the Excelsior 450-19 Bias Ply Blackwall Tire be installed on any 19-inch wheel? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire is designed specifically for compatible narrow 19-inch wheels, not every 19-inch wheel application. The listed recommended rim width range is 2.50 to 3.00 inches, which should be verified before installation. Using a wheel outside the intended range can affect tire shape, handling response, and seating performance.

Because the Excelsior 450-19 Bias Ply Blackwall Tire is a tube-type bias ply tire, the wheel must also be suitable for tube installation. Proper rim condition, correct tube sizing, and professional mounting practices are important factors for maintaining reliability and preserving the authentic appearance of an antique restoration.

What should I check before choosing the Excelsior 450-19 Bias Ply Blackwall Tire for regular road use? â–¼

Before selecting the Excelsior 450-19 Bias Ply Blackwall Tire, verify your wheel size, tube requirements, vehicle weight, clearance, and intended driving conditions. The tire carries a Load Index of 69 and a P speed rating, which should be considered alongside the vehicle’s actual requirements and expected usage.

For regular road driving, inspect factors such as highway speeds, heat buildup, suspension movement, and tracking behavior. The Excelsior 450-19 Bias Ply Blackwall Tire is designed around authentic antique styling and construction, so proper setup and realistic driving expectations are essential for safe and enjoyable operation.

Tire Size Equivalents & Conversions â–¼

What modern tire size is closest to the Excelsior 450-19 Bias Ply Blackwall Tire? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire uses an antique bias sizing system, so it does not have a direct one-to-one modern metric equivalent. The 4.50-19 designation identifies the approximate tire width and the 19-inch rim diameter rather than using today’s aspect ratio-based metric measurements.

For accurate replacement decisions, compare the Excelsior 450-19 Bias Ply Blackwall Tire using its listed specifications: 4.25-inch section width, 27.75-inch overall diameter, and 19-inch rim compatibility. These measurements provide a more reliable reference than converting to a modern size that may not match the original stance, clearance, or appearance.

How do I compare the Excelsior 450-19 Bias Ply Blackwall Tire dimensions with my current tire size? â–¼

To compare the Excelsior 450-19 Bias Ply Blackwall Tire with an existing tire, focus on the physical measurements rather than only the size markings. The key specifications are the 27.75-inch overall diameter, 4.25-inch section width, and compatibility with 2.50 to 3.00 inch rim widths.

Differences between the Excelsior 450-19 Bias Ply Blackwall Tire and your current tires can change ride height, steering response, and clearance. A taller or shorter tire may affect speedometer readings, while a wider or narrower tire can influence contact patch behavior and steering effort. Measuring the mounted tire space is recommended before installation.

Can the Excelsior 450-19 Bias Ply Blackwall Tire replace a different 19-inch tire size on my vehicle? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire may replace another 19-inch tire size only when the overall dimensions, load requirements, wheel compatibility, and clearance needs are appropriate. A different 19-inch tire may have a different section width, diameter, or sidewall profile even if the rim diameter matches.

Before switching to the Excelsior 450-19 Bias Ply Blackwall Tire, compare the mounted dimensions and vehicle requirements. Changes in tire diameter can influence speedometer accuracy, while changes in width can affect steering effort and suspension clearance during turning or compression.

Performance & Use Case â–¼

How will the Excelsior 450-19 Bias Ply Blackwall Tire drive on the road compared with modern tires? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire is designed around traditional antique vehicle driving characteristics rather than modern radial tire behavior. Its bias ply construction provides the authentic ride feel and appearance expected by many restoration enthusiasts, but drivers may notice more sensitivity to road grooves, pavement irregularities, and steering inputs compared with modern radial tires.

The narrow 4.25-inch section width and vintage tread design contribute to its period-correct driving experience. The Excelsior 450-19 Bias Ply Blackwall Tire is best suited for collectors who value historical accuracy, traditional appearance, and appropriate performance expectations for antique vehicles.

Is the Excelsior 450-19 Bias Ply Blackwall Tire suitable for highway driving? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire can be used for road applications when properly matched to the vehicle and driven within appropriate conditions. The tire carries a P speed rating, but vehicle setup, alignment, suspension condition, tire pressure, and overall vehicle design all influence highway performance.

Drivers should remember that the Excelsior 450-19 Bias Ply Blackwall Tire uses four-ply nylon bias construction, which behaves differently from modern radial tires at higher speeds. Maintaining correct inflation pressure and monitoring tire condition are important considerations for enthusiasts who plan longer drives or highway use.

What type of vehicles are best suited for the Excelsior 450-19 Bias Ply Blackwall Tire? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire is intended for antique and collector vehicles that require a narrow 19-inch tire with traditional styling. It is particularly suited for restoration projects where maintaining original appearance, correct proportions, and period-style equipment is important.

The tire is not designed around modern high-performance driving expectations but around authenticity and compatibility with vintage applications. Owners should evaluate their vehicle’s wheel specifications, weight requirements, and intended driving habits before choosing the Excelsior 450-19 Bias Ply Blackwall Tire for their restoration or collection vehicle.

What driving considerations should I understand before choosing the Excelsior 450-19 Bias Ply Blackwall Tire? â–¼

Owners choosing the Excelsior 450-19 Bias Ply Blackwall Tire should understand that authenticity comes with traditional tire behavior. Bias ply construction can provide the correct appearance and driving character for antique vehicles, but it may require more attention to tire pressure, alignment, and road conditions compared with modern radial designs.

For regular use, consider factors such as highway speeds, heat buildup during extended driving, tracking behavior, and steering response. The Excelsior 450-19 Bias Ply Blackwall Tire is a strong choice for enthusiasts seeking a period-correct tire solution while maintaining realistic expectations for vintage vehicle operation.

Construction, Durability & Load Capacity â–¼

What type of construction does the Excelsior 450-19 Bias Ply Blackwall Tire use? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire uses traditional bias ply construction with four-ply nylon cord reinforcement. This construction style matches the technology used on many antique vehicles and restoration applications where maintaining an authentic appearance and original-style driving experience is important.

The bias ply design uses overlapping cord layers that create a strong tire structure but provides different handling characteristics compared with modern radial tires. The Excelsior 450-19 Bias Ply Blackwall Tire is intended for enthusiasts who prioritize historical accuracy, vintage styling, and compatibility with antique vehicle applications.

How does the four-ply nylon construction of the Excelsior 450-19 Bias Ply Blackwall Tire affect durability? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire features four-ply nylon construction designed to provide the strength and durability expected from a traditional antique tire. Nylon cord construction supports the tire structure while maintaining the classic profile required for vintage restorations and collector vehicles.

Durability also depends on correct installation, proper inflation, vehicle storage conditions, and driving habits. The Excelsior 450-19 Bias Ply Blackwall Tire should be inspected regularly for age-related changes, damage, and wear, especially on vehicles that spend extended periods parked or are driven only occasionally.

What does the Load Index 69 rating mean for the Excelsior 450-19 Bias Ply Blackwall Tire? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire has a listed Load Index of 69, which identifies the tire’s rated load-carrying capacity according to tire industry standards. This specification should be compared with the vehicle’s weight requirements, axle loads, and intended usage before installation.

A proper tire selection requires more than matching size alone. The Excelsior 450-19 Bias Ply Blackwall Tire should be installed on a vehicle where the load requirements are appropriate for its rating. Owners should also consider passenger loads, cargo, and driving conditions when evaluating whether this tire meets their application needs.

What durability factors should I consider before using the Excelsior 450-19 Bias Ply Blackwall Tire regularly? â–¼

Before using the Excelsior 450-19 Bias Ply Blackwall Tire regularly, consider factors including vehicle weight, driving frequency, storage conditions, inflation maintenance, and road conditions. Although the tire is built with durable four-ply nylon construction, proper care is essential for maintaining performance over time.

Collectors often use vintage vehicles differently from modern daily drivers, with periods of storage followed by occasional road use. The Excelsior 450-19 Bias Ply Blackwall Tire benefits from regular inspections, correct mounting procedures, and monitoring for wear, aging, or damage to support reliable ownership.

Installation & Maintenance â–¼

How should the Excelsior 450-19 Bias Ply Blackwall Tire be installed on my vehicle? â–¼

The Excelsior 450-19 Bias Ply Blackwall Tire requires proper installation practices to ensure correct fitment and safe operation. The tire is a tube-type design, meaning it must be installed with a compatible inner tube on a suitable 19-inch wheel. The recommended rim width range is 2.50 to 3.00 inches, which should be confirmed before mounting.

Because antique wheels may have age-related wear, rust, or surface irregularities, the wheel condition should be inspected before installation. Proper tube selection, mounting technique, and balancing help the Excelsior 450-19 Bias Ply Blackwall Tire maintain its intended appearance and performance characteristics.

Does the Excelsior 450-19 Bias Ply Blackwall Tire require an inner tube? â–¼

Yes, the Excelsior 450-19 Bias Ply Blackwall Tire is listed as a tube-type tire and requires installation with a compatible inner tube. Tube selection should match the tire size and valve stem requirements to ensure proper fit and reliable operation.

When installing the Excelsior 450-19 Bias Ply Blackwall Tire, inspect the wheel for sharp edges, corrosion, or damage that could affect tube performance. A properly installed tube helps maintain air retention and supports the tire’s intended shape. Using the correct mounting procedures is especially important for antique vehicles with older wheel designs.

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