Imperial Custom Tires

Imperial Custom uses 820-15 for both 1960 and 1961. All listed products for Imperial Custom in this size are built for 15-inch rims, and the standard passenger-car bias-ply options are generally specified for 6.00 to 6.50 inch rim widths. That makes fitment unusually consistent across this short production run compared with many collector cars that changed sizes by year or trim.

The practical job is less about picking between different sizes and more about choosing the right version of 820-15 for your car’s purpose. A restored luxury car may call for a particular whitewall look, while a more specialized period build may point toward one of the performance-oriented bias-ply options. Check the wheel diameter on the car and match the sidewall style to the appearance you want before moving forward.

An Imperial Custom tire marked 820-15 uses a traditional numeric bias-ply size code. The 820 indicates a nominal section width of roughly 8.20 inches, and the 15 identifies the wheel diameter in inches. In the products listed for Imperial Custom, this size is consistently matched to a 15-inch rim, which confirms the wheel diameter portion of the code.

That size marking helps you confirm the basic fit, but it does not tell the whole story for a collector car. Sidewall style, rim width range, and intended use still matter, especially on a prestige car where stance and visual correctness are part of the finished look. If your Imperial Custom has wheels that may have been changed over the years, verify the actual rim diameter and width before settling on a tire.

Imperial Custom tire options in this listing are bias-ply products in a traditional numeric size, and a tube is required. That applies to the standard classic bias-ply offerings as well as the specialty bias-ply performance variants listed in 820-15. Tube-type fitment is typical of many collector-car tires in this format and should be treated as part of the overall tire setup rather than an optional extra.

When replacing tires on an Imperial Custom, plan the tube, flap, and wheel condition as part of the same job instead of treating the tire alone as the complete solution. A clean, properly prepared wheel and the correct tube setup help preserve ride quality and reduce trouble on a car that may spend long periods parked. That is especially important on a heavy luxury car where tire integrity matters to both appearance and drivability.

The first check for a 1960 or 1961 Imperial Custom is straightforward because both years use 820-15 on 15-inch rims. After confirming the year, inspect the actual wheel diameter stamped on the wheel or verify it through the wheel itself, then compare rim width with the tire’s recommended range. Most standard passenger versions of 820-15 are intended for 6.00 to 6.50 inch rims, while a few specialty tires call for different widths.

Once the size is confirmed, the next decision is how the car will be used and presented. A formal restoration may need a specific whitewall width and a classic bias-ply series, while a period hot rod or exhibition-style build may lean toward a blackwall or racing-style tire. Looking at wheel width, intended use, and the finished appearance together will usually narrow the right choice quickly.

Imperial Custom tires are available here in blackwall, narrow whitewall, and wide whitewall styles. The listed whitewall treatments include narrow bands around 1.00 inch as well as wider presentations in several widths, including 2.25 inch, 2.50 inch, 2.75 inch, 3.50 inch, 3.625 inch, and 4.25 inch variants depending on brand and series. That gives Imperial Custom owners a broad range of visual options within the same 820-15 fitment.

On a 1960s luxury car like Imperial Custom, sidewall style changes the look almost as much as the wheel itself. Wider whitewalls tend to emphasize period presence and show-car character, while blackwalls create a more restrained or specialized appearance. If you are restoring for authenticity, compare your car with original photos, factory literature, or marque-club guidance to choose a whitewall width that suits the car’s original presentation.

Imperial Custom tires in 820-15 are offered by BFGoodrich, Firestone, US Royal, Universal Vintage Tire, and Avon. Most of the lineup centers on classic bias-ply passenger tires with blackwall and whitewall variations, while Firestone also appears in specialty performance-oriented series and Avon is represented by the Turbospeed Mk4. That gives Imperial Custom owners both restoration-style and more niche period-style choices within the same basic fitment.

Brand choice on an Imperial Custom often comes down to the look and character you want from the finished car. Some owners focus on whitewall width and tread personality, while others want a particular historic name on the sidewall to match the era they are recreating. Once the size is fixed at 820-15, comparing brand, series, and sidewall appearance becomes the most useful way to narrow the selection.

Imperial Custom tire choices include Silvertown Classic Bias Ply, Firestone Classic Bias Ply, US Royal Classic Bias Ply, Universal Classic Bias Ply, Turbospeed Mk4, Dirt Track, and Dragster Cheater. The classic bias-ply series are the closest match to a traditional road-going collector-car presentation, while Turbospeed Mk4 is another period-style bias-ply passenger option. Dirt Track and Dragster Cheater are specialty bias-ply designs aimed at vintage competition or themed builds rather than stock luxury-car restoration.

That series difference matters because the same 820-15 size can serve very different goals on an Imperial Custom. A restored road car usually benefits from one of the classic bias-ply lines, chosen mainly by sidewall appearance and brand preference. Specialty racing series belong on cars built around that look or purpose, and they should be matched carefully to wheel width and expected use rather than selected on size alone.

An Imperial Custom should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, and large temperature swings. Inflate the tires to an appropriate storage pressure, keep the car on a clean surface, and move it periodically so the same section of each tire does not carry the load for months at a time. On a heavy luxury car, avoiding long-term static loading helps reduce flat-spotting and sidewall stress.

If the Imperial Custom will sit for an extended period, many owners use tire cradles or raise the car slightly to reduce concentrated load, while still supporting the suspension correctly. Clean tires with mild soap and water only, and avoid dressings that can dry the rubber over time. Collector-car tires age more from environment and inactivity than from mileage, so storage habits have a direct effect on service life.

Tires on an Imperial Custom should be inspected before every drive and given a more thorough check several times during the driving season. Look for cracking, weathering, irregular wear, pressure loss, sidewall bulges, punctures, and any signs that the tube-type assembly has shifted or deteriorated. Because Imperial Custom uses bias-ply tires in this fitment, visual checks are especially important on cars that are driven infrequently.

A quick walk-around before moving the car can prevent damage to scarce collector-car components and reduce the chance of being stranded by a tire issue that developed during storage. At regular intervals, have the wheels, tubes, valve stems, and balance checked together rather than treating the casing alone as the whole system. Consistent inspection is one of the simplest ways to preserve both safety and originality.

Imperial Custom tires should be replaced when age, cracking, hardening, repeated air loss, impact damage, or structural deterioration appears, even if the tread still looks usable. Collector cars often accumulate very little mileage, so tread depth is rarely the best guide to serviceability. Rubber condition, storage history, and overall casing health matter far more than remaining tread on a low-use Imperial Custom.

An owner who sees weather-checking or feels that the ride has become harsh and the rubber has gone hard should treat replacement as a maintenance decision, not a cosmetic one. It is also wise to reassess tubes and wheel condition at the same time, since all three parts work together. Replacing aged tires before they fail helps preserve the car, the wheels, and the driving experience.

Imperial Custom uses 820-15 in the available fitment range, and the products offered in that size include several classic bias-ply passenger series from BFGoodrich, Firestone, US Royal, Universal Vintage Tire, and Avon. The listings also show multiple sidewall styles, from blackwall to narrow and wide whitewall treatments. That means the essential starting point for originality is the 820-15 size on a 15-inch rim, then narrowing the exact presentation from period references for the specific car.

If your restoration goal is factory-correct presentation, use the size first and then compare period photos, brochures, and marque-club knowledge to determine the right sidewall style and brand character for your Imperial Custom. Whitewall width can change the visual era of the car quite noticeably. A restoration judged at a high level should treat sidewall appearance as part of the car’s authenticity, not just a decorative detail.

Correct tire fitment can affect both the judged presentation and perceived value of an Imperial Custom because tires strongly influence stance, visual period accuracy, and the overall finish of the car. Using the right 820-15 size is the foundation, but sidewall style and overall tire character matter as well. On a luxury marque, details such as blackwall versus whitewall and the width of the white band can change how authentic the restoration appears.

For a serious restoration, the tire should support the same historical story as the paint, trim, and wheel covers. Judges and knowledgeable buyers often notice whether the tire’s profile and sidewall treatment suit the year and presentation of the car. If value and authenticity are priorities, compare the finished tire choice against marque-club references and period imagery before finalizing the setup.

Imperial Custom restoration choices in 820-15 include blackwall, narrow whitewall, and wide whitewall styles, with several whitewall widths available. On a prestige American car from 1960 to 1961, whitewall presentation is often central to the car’s finished look, but the exact width should match the appearance you are trying to recreate. The available range gives enough flexibility to build anything from a restrained period look to a fuller, more formal early-1960s presentation.

The right answer for your Imperial Custom depends on whether you are aiming for showroom-style accuracy, a personalized period look, or a more understated driver presentation. Original photography, sales literature, and marque specialists are the best guides when whitewall width matters for judging. Choosing the sidewall before choosing the brand often makes the decision easier, because visual correctness is usually what owners notice first on the completed car.

A properly selected and properly maintained 820-15 tire can be suitable for public-road use on an Imperial Custom, provided the tire type matches the way the car will actually be driven. The standard classic bias-ply passenger tires are the most natural fit for normal collector-car road use, while specialty options such as Dirt Track or Dragster Cheater belong to more specific applications. Safety begins with selecting the right style of tire for the car’s purpose, not just the right size.

Before road use, make sure the tires, tubes, wheels, steering, and brakes are all in good condition and suited to the weight and speed of a full-size luxury car. Collector tires also need sensible expectations: smooth roads, moderate speeds, and regular inspections matter more than modern performance assumptions. A well-prepared Imperial Custom can be an enjoyable road car, but it should always be driven within the limits of its period-style tire construction.

Before driving an Imperial Custom, check cold tire pressure, look for visible cracking or bulges, inspect the tread and sidewalls for embedded damage, and confirm that each tire still matches the car’s intended use. Also look at valve stems, wheel condition, and any signs of tube-related air loss or shifting. Because Imperial Custom uses a large 15-inch bias-ply tire in this fitment, even a small issue can affect ride quality and control.

A collector car that has sat for weeks or months deserves a more careful pre-drive routine than a regularly used modern car. After the tire inspection, make the same check of brakes, steering response, suspension feel, and wheel fasteners before heading onto faster roads. Those extra minutes are worthwhile on an Imperial Custom because they protect scarce parts and help keep the driving experience calm and predictable.

An Imperial Custom on period-style bias-ply tires should be driven at moderate speeds that suit the age, construction, and condition of the tires as well as the overall mechanical condition of the car. Even when the car itself is capable of more, collector bias-ply tires reward smooth inputs and conservative cruising rather than sustained high-speed use. The specialty performance tires listed in 820-15 should also be treated according to their intended purpose, not as a substitute for modern road-tire behavior.

The best practice is to build speed gradually, pay attention to how the car tracks, and back off if the road surface, heat, or steering feel suggests the car is reaching its comfort zone. An Imperial Custom is at its best when driven in a relaxed, period-appropriate manner. Matching road speed to tire type, weather, and vehicle condition will do more for safe enjoyment than chasing modern highway expectations.