1958 Bentley Tire Fitment Guide

1958 Bentley vehicles in this fitment guide use one tire size: 820-15. That size applies to the 1958 Bentley S-Type and mounts on a 15-inch rim. Available products for 820-15 list a rim width range of 6.00 to 6.50 inches, which gives you the key wheel dimensions to confirm before choosing a tire.

That simplicity is helpful because you do not have to sort through multiple factory sizes across the model range. The job is to verify that your wheels still match the original 15-inch fitment and fall within the listed rim-width range, then choose the sidewall style that best suits your Bentley’s restoration goals and overall presentation.

On a 1958 Bentley, 820-15 is a numeric bias-ply tire size. The 8.20 portion refers to the tire’s nominal section width, while the 15 identifies the wheel diameter in inches. Unlike a modern metric radial size, it does not include a section width in millimeters or an explicit aspect ratio in the code, and the construction here is bias-ply rather than radial.

That matters because a numeric bias-ply tire carries the visual character and road manners expected of a late-1950s luxury car. If you are accustomed to modern tire markings, the older code can look unfamiliar, so matching the exact 820-15 size and confirming a 15-inch wheel is the cleanest way to stay aligned with proper period fitment.

Yes. The 1958 Bentley model covered here, the S-Type, uses the same 820-15 tire size throughout this year-and-make range. There is no split between different Bentley models for 1958 in this fitment set, and the available products all follow the same basic 15-inch bias-ply specification.

For most owners, that means the decision is not about comparing one Bentley model against another. The meaningful choice is whether your car should wear a blackwall, a narrow whitewall, or a wider whitewall, since that changes the visual tone of the car more than the fitment itself.

1958 Bentley tires in 820-15 are available as blackwall, narrow whitewall, and wide whitewall designs. BFGoodrich offers blackwall and 1.00-inch whitewall versions, Firestone offers a blackwall version, and US Royal offers a 3.50-inch whitewall version. All of them share the same basic size and bias-ply construction, so the sidewall treatment is the major visual difference.

A blackwall gives the car a more restrained look, while whitewalls create a more formal luxury presentation that suits many late-1950s British saloons. If your goal is show authenticity, compare your Bentley’s period photos, delivery market expectations, and restoration theme before settling on a sidewall style, since judges and marque enthusiasts often notice that detail quickly.

BFGoodrich, Firestone, and US Royal all offer 820-15 tires for 1958 Bentley fitment. Each brand is represented in bias-ply construction, and the available sidewall styles differ slightly by brand, with blackwall and whitewall options spread across the lineup. Max load listings shown for these 820-15 products are 1920 pounds at 32 psi.

Brand choice for a car like a 1958 Bentley often comes down to the look you want and which period presentation feels right for the restoration. Once you narrow the sidewall style, compare the specific product’s published details rather than assuming every tire in the same size is identical in appearance or overall setup.

For a 1958 Bentley in 820-15, both BFGoodrich and Firestone offer bias-ply tires with the same listed load capacity of 1920 pounds at 32 psi and the same recommended rim-width range of 6.00 to 6.50 inches. The visible difference is that BFGoodrich is available in both blackwall and 1.00-inch whitewall versions, while the Firestone option listed here is blackwall. Weight also varies slightly, with the BFGoodrich blackwall listed at 28 pounds and the Firestone blackwall at 33 pounds.

That means your choice is more about appearance and product character than a major fitment difference. If you are chasing a clean, understated look, either blackwall path may suit the car, while a Bentley restoration that benefits from a whitewall accent will naturally point you toward a version offered with that sidewall treatment.

The 820-15 tires used on 1958 Bentley vehicles are listed for rims measuring 6.00 to 6.50 inches wide, with a 15-inch rim diameter. That range applies across the available products in this fitment group, so it is the practical wheel specification to confirm before mounting replacement tires on a 1958 Bentley S-Type.

Checking rim width matters on a heavy luxury car because even a correct tire size should be paired with an appropriate wheel. Measure the wheel or verify it through restoration records if the car has had wheel work over the years, especially if you are not certain the current rims are the originals.

The available 820-15 products for 1958 Bentley fitment are not marked with tube-type or tubeless designations in the size listing here. That makes wheel construction especially important, because many period wheels and restoration practices still involve tube use even when the tire size itself looks straightforward. The safe approach is to match the tire setup to the wheel design actually on the car.

A Bentley owner should inspect whether the wheel is intended to run with a tube, whether the valve stem and wheel interior are suitable for tube use, and whether the wheel condition supports reliable sealing. If there is any doubt, a shop experienced with vintage British cars can help you sort out the correct tube decision before mounting.

A 1958 Bentley should be stored in a cool, dry space away from direct sunlight, electric motors, welders, furnaces, and other ozone-producing equipment that can accelerate rubber aging. Because 820-15 tires for this application are bias-ply, they are more prone to temporary flat-spotting when the car sits for long periods than a modern radial would be. Clean floors, stable temperatures, and proper inflation all help reduce stress on the casing during storage.

If the car will sit for months, roll it periodically or support it in a way that reduces prolonged loading on one contact patch while still following safe storage practices. Covering the tires from light exposure and avoiding damp conditions will do more for long-term preservation than simply leaving the car untouched.

Tires on a 1958 Bentley should be judged by age, condition, and storage history more than by mileage. Collector vehicles often accumulate very few miles, yet the rubber still ages over time, so a careful evaluation starting around the five- to seven-year mark is wise, with replacement commonly considered as tires approach ten years from their date code. Sidewall cracking, hardening, irregular wear, or repeated air loss can justify earlier replacement.

That approach is especially important on a low-use luxury car that may spend long periods parked between outings. Even a tire that still looks presentable from a few feet away can age out before the tread is worn, so checking the manufacturing date and overall condition is part of responsible vintage Bentley ownership.

Tires on a 1958 Bentley deserve a quick inspection before every drive and a more thorough inspection before extended outings. Look for sidewall cracking, cuts, bulges, embedded debris, uneven tread wear, and any sign that the tire has been run underinflated. Pressure retention should be checked regularly, and the valve stems should be examined closely as part of the same routine.

That habit matters more on a collector car than on a modern daily driver because long periods of inactivity can hide developing problems. A few minutes spent checking the tires before a tour, a club event, or a weekend drive can prevent avoidable trouble and also help you catch wheel or suspension issues before they become more expensive.

A 1958 Bentley S-Type would have been fitted in period with bias-ply tires rather than modern radial construction, and the fitment used here is 820-15. That aligns with what you would expect on a late-1950s Bentley luxury saloon, where tall-profile bias-ply tires were still standard practice. Original-equipment branding could vary by market and delivery history, so the most reliable path for a highly exact restoration is to compare surviving records and consult Bentley marque sources.

For most restorations, getting the size, construction type, and sidewall style right will do more for authenticity than chasing a name on the sidewall alone. If your car is being prepared for judged display, confirm whether the event emphasizes factory-delivery appearance, regional market differences, or simply era-correct specification.

Correct tire fitment matters on a 1958 Bentley because judges and knowledgeable enthusiasts often notice the tire’s size, construction type, and sidewall style immediately. An 820-15 bias-ply tire keeps the car aligned with its late-1950s presentation, while a sidewall treatment that clashes with the era or with the car’s restoration theme can stand out in the wrong way. Whitewall width and overall profile are often just as visible as the bodywork on a formal saloon.

That does not mean every show uses the same standard, but it does mean tire choice is part of the car’s authenticity story. Before final assembly, compare your intended event level with the tire’s visual character and ask Bentley clubs or judging organizations what they typically expect from a properly restored S-Type.

For a 1958 Bentley, blackwall and whitewall 820-15 tires share the same core fitment but present the car very differently. The blackwall versions listed here are available from BFGoodrich and Firestone, while whitewall choices include a 1.00-inch whitewall from BFGoodrich and a 3.50-inch whitewall from US Royal. All remain bias-ply 15-inch tires, so the distinction is primarily visual rather than dimensional.

A blackwall usually gives the S-Type a more reserved, tailored look, while a whitewall pushes the car toward a more formal luxury statement that many period buyers appreciated. If originality is your aim, match the sidewall style to the restoration’s intended market look instead of assuming every 1958 Bentley should wear the same whitewall width.

Properly maintained 1958 Bentley tires in the correct 820-15 size can be suitable for normal road use when they are in good condition, correctly inflated, and matched to sound wheels. The products in this fitment group are bias-ply designs, so their feel and response will be more period-correct than modern radial-like. On a 1958 luxury car, the tire is only one part of the equation; brakes, suspension condition, steering, and alignment all matter just as much before sustained highway travel.

Safe road use starts with realistic expectations. A Bentley S-Type was engineered for refined touring in its own era, so owners should drive within the car’s mechanical limits, keep the tires in fresh condition, and avoid treating a restored bias-ply setup like a modern high-speed touring package.

The 820-15 products available for 1958 Bentley fitment are listed with a maximum load capacity of 1920 pounds at 32 psi. That figure is the tire’s published load-and-pressure reference, not automatically the exact operating pressure every car should use in every situation. For day-to-day use, the best practice is to compare the Bentley factory recommendation with the tire manufacturer’s specifications for the reproduction tire you choose.

Pressure should never be borrowed from another size or another vehicle just because the tire looks similar. Start with the car’s original guidance, then make sure the chosen tire’s own limits are respected, especially on a heavy luxury saloon where ride quality and even wear depend on keeping inflation in the right range.

Before a longer drive in a 1958 Bentley, inspect each tire for cracking, cuts, bulges, punctures, abnormal wear, and any sign of age-related hardening. Verify inflation pressure when the tires are cold, examine the valve stems, and make sure the spare is serviceable rather than simply present. A bias-ply tire that has been sitting for a long period should also be driven gently at first to let any temporary flat-spotting work itself out.

That tire check should be part of a broader pre-trip routine that includes brakes, steering, fluids, cooling, and lighting. A well-prepared vintage Bentley is happiest on the road when the whole car is ready for the journey, not just when the tread looks acceptable at a glance.