500/525-16 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.
| SKU | 63650 |
|---|---|
| Weight | 16.000000 |
| 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 | 16 inch |
| Tube Type or Tubeless | Tube Type |
| Product Size | 500/525-16 |
| Width Bias Ply | 5.00/5.25 |
| Brand | Excelsior |
| Load Index | 74 |
| Section Width (IN) | 4.12 |
| Rim Width (in) | 3.00 - 3.25 |
| Overall Diameter (IN) | 26 |
This Excelsior comes in the 500/525-16 size, suitable for the classic and collector vehicles listed below.
About the 500/525-16 Tire Size
The 500/525-16 is a vintage tire size used on classic and collector vehicle applications associated with 16-inch fitments. In this product, the size is paired with the Excelsior and identified as a bias ply tire, making the tire size connection especially useful for shoppers matching period-style sizing. For more detailed information on this tire size, explore the 500/525-16 tire on Coker Tire Fitment Guide.
Frequently Asked Questions
Purchase Considerations â–¼
The Excelsior 500/525-16 is offered for antique applications, but its 16-inch designation alone does not confirm compatibility with your existing rim. Excelsior notes that its listed tire dimensions are measured on an inflated tire mounted on a wheel and can vary with rim width and inflation pressure.
Before ordering, check the manufacturer's recommended rim-width range for this specific tire against your wheel specifications. This is especially important if your antique vehicle has replacement wheels or a less common European rim setup.
Yes, particularly if your antique vehicle has upgraded brakes or wheels that differ from the original equipment. Brake clearance is primarily determined by the wheel's internal shape and dimensions in relation to the brake hardware, rather than the blackwall design or tire tread.
Confirm that the wheel-and-tire assembly is compatible with your vehicle's brakes before installation. The product description does not provide brake-clearance measurements, so a vehicle-specific fitment check is necessary if the braking system or wheels have been modified.
A proper fit should leave sufficient room between the tire and surrounding components throughout the steering range. On an antique vehicle, check for potential contact with the inner fenders, bodywork, steering linkage, and suspension when the wheels are turned fully in both directions.
Excelsior also notes that actual tire dimensions can vary with rim width and inflation pressure, so catalogue measurements alone may not establish final clearance. If your vehicle has non-original wheels or altered steering geometry, verify the fit on the assembled vehicle before regular use.
It can be a good option for an antique restoration where traditional tire construction is part of the intended driving experience. The Excelsior combines bias-ply construction with vintage tread designs and authentic sidewall markings, making it suitable for owners seeking a period-appropriate setup.
Keep in mind that bias-ply tires can follow pavement grooves and ruts more readily than modern radials. The choice therefore depends on whether you value the character of a traditional antique tire more than the different handling and road-tracking behavior associated with radial construction.
Fitment & Compatibility â–¼
The Excelsior 500/525-16 Bias Ply Blackwall Tire is designed for vehicles that originally used a 500-16 or 525-16 tire size and a compatible 16-inch wheel. Buyers should verify the original tire size listed in factory documentation, vehicle manuals, or existing tire markings before purchasing. Matching the original fitment helps preserve intended ride height, steering geometry, and appearance.
Because many antique vehicles have undergone restoration work over the decades, wheel replacements and suspension modifications are common. Confirming wheel diameter alone is not enough. You should also verify wheel condition, width, and available clearance around fenders, steering components, and suspension parts to ensure proper installation and operation.
In many antique vehicle applications, the Excelsior 500/525-16 Bias Ply Blackwall Tire can serve as a replacement for an original 500-16 tire because the sizing range was historically used across similar fitments. Owners pursuing authentic restorations often choose tires in the same historical size family to maintain factory-correct appearance and proportions.
Before replacing existing tires, compare current overall dimensions and available wheel clearance. Even small differences in tire dimensions can affect fender clearance during suspension compression or full steering lock. Vehicles with lowered suspensions, modified steering systems, or non-original wheels should be measured carefully before installation.
The Excelsior 500/525-16 Bias Ply Blackwall Tire is intended for use on appropriate 16-inch wheels that match the tire's design requirements. Original factory wheels are often the preferred choice because they preserve correct fitment and historical accuracy for antique vehicle restorations.
Wheel diameter alone does not guarantee compatibility. Factors such as wheel width, rim condition, bead seating surfaces, and previous repairs should be inspected before mounting. Since tire dimensions can vary slightly based on wheel width and inflation pressure, verifying wheel specifications helps ensure proper tire shape and performance.
Tire Size Equivalents & Conversions â–¼
There is no exact one-to-one conversion between the Excelsior 500/525-16 Bias Ply Blackwall Tire and a modern metric radial size. Vintage sizing systems were developed using different measurement standards than contemporary tire classifications.
When evaluating possible conversions, restorers typically compare overall diameter, section width, wheel diameter, and intended vehicle usage. A modern equivalent may fit physically while altering appearance, steering feel, ride quality, or speedometer accuracy. Buyers seeking authenticity generally stay with the original-style sizing whenever possible.
Performance & Use Case â–¼
The Excelsior 500/525-16 Bias Ply Blackwall Tire was specifically developed with antique vehicle restorations in mind. Its vintage tread design, authentic sidewall markings, and traditional bias ply construction help recreate the appearance expected on historically accurate restorations.
For buyers prioritizing originality, the tire offers a period-correct driving experience that aligns with how many antique vehicles were originally equipped. While it does not deliver modern radial handling characteristics, it supports restoration goals by preserving visual authenticity and era-appropriate road manners.
Drivers can expect a traditional bias ply driving experience from the Excelsior 500/525-16 Bias Ply Blackwall Tire. Steering feedback and road response often feel different from modern radial tires, particularly on uneven pavement and grooved road surfaces.
The tire's behavior reflects the engineering standards of the period rather than modern performance expectations. Many restoration enthusiasts appreciate this authentic character because it preserves the vehicle's historical driving personality. Understanding these differences helps buyers determine whether authenticity or modern handling is their primary objective.
The Excelsior 500/525-16 Bias Ply Blackwall Tire is well suited for show vehicles, parade cars, weekend cruisers, and restoration projects where historical appearance is a primary goal. The authentic styling contributes significantly to the overall presentation of antique vehicles.
Because the tire retains traditional bias ply construction, it also supports period-correct driving experiences during occasional road use. Owners who prioritize authenticity over modern performance often find that the tire aligns well with collector vehicle ownership and preservation objectives.
Construction, Durability & Load Capacity â–¼
The Excelsior 500/525-16 Bias Ply Blackwall Tire uses traditional bias ply construction with cords arranged at angles that overlap in a crisscross pattern. This construction method was standard on passenger vehicles for decades and contributes to the authentic driving feel many restoration enthusiasts seek.
Compared with modern radial tires, the bias ply design can create more steering input sensitivity and greater reaction to pavement imperfections. Drivers may notice increased tracking along road grooves and a different cornering feel. These characteristics are normal for vintage bias ply tires and help preserve the original personality of antique vehicles.
The Excelsior 500/525-16 Bias Ply Blackwall Tire is primarily designed for authenticity. Its vintage tread design, traditional construction, and period-correct sidewall appearance make it especially appealing for restoration projects where historical accuracy is a priority.
Buyers should understand that authenticity and modern performance are not always the same goal. While the tire delivers the appearance and driving characteristics expected from an antique vehicle, it does not attempt to replicate the ride comfort, cornering stability, or highway refinement of contemporary radial tires.
The Excelsior 500/525-16 Bias Ply Blackwall Tire features durable nylon cord construction, a proven technology widely used in vintage tire manufacturing. Nylon cords help provide structural strength while supporting the traditional characteristics expected from a period-correct bias ply tire.
Long-term durability depends heavily on storage conditions, inflation maintenance, alignment quality, and driving habits. Collector vehicles that are properly maintained and stored away from excessive sunlight and environmental exposure generally place less stress on tires than daily-driven vehicles. Consistent care contributes significantly to service life.
Installation & Maintenance â–¼
Before installing the Excelsior 500/525-16 Bias Ply Blackwall Tire, verify that your vehicle originally used a compatible 500-16 or 525-16 size and that the wheels are the correct 16-inch diameter. Confirming fitment before mounting helps prevent clearance or compatibility issues.
You should also inspect wheel condition, bead seating surfaces, suspension components, and steering parts. Antique vehicles often have decades of wear, repairs, or modifications that can affect fitment. A thorough inspection reduces the likelihood of installation complications and helps ensure predictable operation.
The product page references a compatible tube option in the related products section, which suggests that tube usage may be appropriate depending on the wheel design and vehicle application. Many antique vehicles originally used tube-type wheel and tire combinations.
Because wheel designs vary significantly across vintage vehicles, owners should verify whether their specific wheels require tubes before installation. Using the correct tube configuration helps support proper air retention and reliable operation while maintaining historically appropriate fitment practices.
Inflation pressure is one of the most important maintenance factors for the Excelsior 500/525-16 Bias Ply Blackwall Tire. The product information specifically notes that measured tire dimensions can vary based on inflation pressure and wheel width.
Maintaining consistent pressure supports predictable handling, proper tire shape, and controlled heat buildup. Significant deviations from recommended pressures may affect ride quality, steering feel, and tread contact characteristics. Regular pressure checks are especially important for collector vehicles that spend extended periods in storage.


