Bentley T Series Tires

Bentley T Series uses three tire sizes in the years covered here: 815-15 for 1967, 1969, and 1971; 205R15 for 1973 and 1974; and HR70-15 for 1975. Every listed Bentley T Series fitment uses a 15-inch rim, but the tire formats change from numeric bias-ply to radial sizing as production moves into the mid-1970s. The 815-15 products are specified for 15-inch rims with a 5.00 to 6.50 inch width range, while one 205R15 listing specifies a 15-inch rim with a 5.50 to 6.00 inch width range.

That means year alone gets you close, but the safest approach is to read the size on the car now and compare it to the wheel diameter before selecting a replacement. Bentley T Series cars may have been updated over time, especially when owners moved from bias-ply to radial tires, so a visual confirmation of both the size code and wheel width helps prevent choosing the wrong construction or profile.

On a Bentley T Series, 815-15 is a numeric bias-ply size. The 815 indicates a nominal section width of about 8.15 inches, and the 15 identifies the wheel diameter in inches. The available Bentley T Series products in this size are bias-ply tires built for 15-inch rims, with a stated rim width range of 5.00 to 6.50 inches.

That size belongs to the earlier Bentley T Series years listed here and is the right direction for a period-correct look and feel on those cars. Because the available products are bias-ply rather than radial, owners should also plan around the driving characteristics of a classic construction tire and use the proper tube-and-rim setup when preparing the car for service.

The Bentley T Series fitments listed here all use 15-inch rims, even though the tire size codes themselves change across the production span. Early cars use 815-15 in a numeric bias-ply format, later cars use 205R15 in a metric radial format, and the final listed year uses HR70-15 in an alphanumeric radial format. The wheel diameter remains 15 inches throughout those changes.

The important point is that a shared rim diameter does not mean the tires are interchangeable without further checking. Section width, profile, construction type, and the wheel width range still matter, so confirm the actual wheel dimensions and compare them with the tire specification rather than assuming every 15-inch Bentley T Series wheel should take the same replacement.

Bentley T Series tube use depends on the tire type fitted. The available 815-15 products are bias-ply tires, and a tube is required for that size in the products listed here. The 205R15 products are radial tires, so they should be matched to the wheel and tire design intended for radial service rather than treated the same way as the earlier bias-ply fitment.

Owners working with an earlier Bentley T Series should pay particular attention to tube, flap, and wheel-condition details when replacing 815-15 tires. On later radial-equipped Bentley T Series cars, the more important step is confirming that the wheel is appropriate for the radial size and that all four tires on the car follow the same construction and service approach.

Bentley T Series appears in both bias-ply and radial fitments across the years covered here. The earlier listed years use 815-15 bias-ply tires, while 1973 through 1975 move to radial sizes including 205R15 and HR70-15. That makes the correct choice less about preference alone and more about matching the tire type to the year, wheel specification, and overall setup of the individual Bentley T Series.

A restoration-minded owner will usually stay with the construction type associated with the car’s original year and wheel package, especially for judged presentation. A driver-focused owner may prefer the later radial format where the car is already configured for it, but the key is to treat construction choice as part of the vehicle’s full wheel-and-suspension setup rather than as a styling decision.

Yes, radial tires can change the road feel of a Bentley T Series compared with bias-ply tires. The listed radial sizes, 205R15 and HR70-15, represent a different construction from the earlier 815-15 bias-ply fitment, and that usually brings a different response in steering feel, ride behavior, and tracking. Those differences are a normal result of construction type, not just of section width or sidewall styling.

For an owner deciding between originality and driving character, it helps to be clear about the car’s mission before choosing a tire. A show-focused Bentley T Series often benefits from period-correct construction, while a later car already set up for radials should usually remain on radials for consistency in handling and overall manners on modern roads.

Mixing crossply and radial tires on a Bentley T Series is not a good practice. The fitments listed here show distinct bias-ply and radial applications by year, and those construction types behave differently under braking, cornering, and load. Keeping the same construction type across the full set is the most consistent approach for a heavy luxury car like the Bentley T Series.

If your Bentley T Series currently has a mixed set because of an older repair or partial replacement, treat that as a temporary condition rather than a finished setup. Matching all four tires by size family, construction type, and overall service intent will give the car more predictable behavior and will also make it easier to judge whether the wheel and suspension setup are correct.

The right Bentley T Series tire size starts with the year of the car: 815-15 for 1967, 1969, and 1971; 205R15 for 1973 and 1974; and HR70-15 for 1975. Every listed size fits a 15-inch rim, but the construction and sizing systems differ, so the sidewall code on the current tire and the actual wheel dimensions should agree with the intended replacement. Wheel width also matters, especially where a listed product gives a defined rim-width range.

A practical check sequence is to confirm the chassis year, read the size currently on the car, measure or verify the wheel diameter, and inspect whether the car is still set up for bias-ply or has already been converted to radial service. That process is especially important on a Bentley T Series because older luxury cars are often restored, re-tired, or re-wheeled over time.

Bentley T Series tires in the available products span several sidewall styles: narrow whitewall and whitewall-redline in 815-15, plus wide whitewall and blackwall in 205R15. Those choices give owners a mix of period-styled presentation options depending on whether the car is being restored to an earlier bias-ply look or fitted in a later radial style. The available sidewall selection is not identical across all sizes, so the correct size comes first and appearance second.

For a Bentley T Series restoration, sidewall choice should support the year and the character of the finished car rather than simply following personal taste. Earlier luxury sedans often look most natural on restrained whitewall treatments, while later radial-era cars may suit either blackwall or broader whitewall styling depending on the exact presentation you are aiming to achieve.

The available Bentley T Series products come from BFGoodrich, Phoenix, and Avon. BFGoodrich appears in the 815-15 bias-ply size, while Phoenix and Avon appear in the 205R15 radial size. That gives Bentley T Series owners options across both earlier and later fitment styles rather than a single-brand solution for every year.

Brand choice should follow the correct size and construction first, then the appearance and driving goal for the car. An owner restoring an earlier Bentley T Series will be looking at a different type of product than an owner maintaining a later radial-era car, so the best comparison is between products within the proper size family rather than across the full production span.

Bentley T Series products here appear in three tire series: Silvertown Classic Bias Ply, European Passenger, and Textile. Silvertown Classic Bias Ply is the traditional bias-ply offering in 815-15, while European Passenger and Textile are radial-series offerings in 205R15. The main difference is therefore construction approach first, with sidewall styling and intended period character varying within those series.

For an owner choosing among them, the series name helps identify whether the tire belongs to the earlier bias-ply phase or the later radial phase of Bentley T Series fitment. Once the proper size is established, the series can help you decide whether the priority is authentic earlier appearance, a more European radial character, or a cleaner late-period roadgoing presentation.

A Bentley T Series should be stored clean, dry, and out of direct sunlight, with tires protected from ozone sources such as motors, chargers, and heaters. Keeping the car on a cool, stable surface and maintaining proper inflation helps reduce flat spotting and sidewall stress, especially on heavier luxury cars. If the car will sit for long periods, moving it slightly from time to time can help change the contact patch.

Collector cars age their tires through time as much as mileage, so storage habits matter even when tread still looks good. Owners who keep a Bentley T Series in long-term indoor storage should also inspect the tires for sidewall cracking, deformation, or bead-area issues before returning the car to regular road use.

Tires on a Bentley T Series should be inspected before any meaningful road use and again at regular intervals during the driving season. A proper inspection includes inflation pressure, tread wear pattern, sidewall condition, valve stems, and any signs of age-related cracking or separation. Older collector cars also deserve a wheel-condition check, since tire problems are sometimes linked to rim condition rather than tread wear alone.

That routine is particularly important on a Bentley T Series because the car’s weight and long idle periods can hide problems until the car is back in motion. Seasonal inspection by an experienced vintage-tire or restoration specialist is a sensible habit, especially when the car alternates between show use, storage, and occasional highway driving.

Bentley T Series tires should be replaced when age, cracking, hardening, flat spotting that does not recover, or structural concerns appear, even if the tread still looks deep. Collector-car tires often age out long before they wear out, and visual appearance alone is not enough to judge serviceability. Any tire with uncertain age or signs of internal deterioration deserves immediate attention.

That matters on a Bentley T Series because a seldom-driven car can seem fine in the garage yet still be riding on tires that no longer belong in regular service. Replacement decisions should be guided by condition and age as much as mileage, with special caution on cars that have sat for years or have seen long periods of static display.

Bentley T Series appears here with more than one period-appropriate tire type across its production span: 815-15 in bias-ply form for the earlier listed years, 205R15 radial for 1973 and 1974, and HR70-15 radial for 1975. That means there is not one single original-style answer for every Bentley T Series. The correct original-type tire depends on the exact year and the wheel-and-construction setup associated with that car.

For an accurate restoration, year-specific research is the next step after identifying the size family. Factory literature, marque clubs, and known-original cars are the best references when you want the sidewall style, construction type, and overall stance of a Bentley T Series to align closely with how the car would have appeared in period.

Yes, correct tire fitment can affect both presentation value and judging results on a Bentley T Series. Size, construction type, and sidewall style all influence whether the car looks appropriate for its year, and that is especially noticeable on a large luxury sedan with substantial visual emphasis on wheel and tire proportion. A Bentley T Series wearing an obviously mismatched tire style can look out of period even if the car is otherwise well restored.

Owners preparing for concours or marque judging should match the tire to the specific year and overall restoration goal rather than simply choosing the most modern-looking option. If the car is intended for high-level presentation, it is wise to compare the finished look with period photos and consult Bentley specialists who understand year-correct stance and tire appearance.

Bentley T Series restoration sidewall choices in the available products include narrow whitewall, whitewall-redline, wide whitewall, and blackwall, but the correct look depends on the year and the tire size being used. Earlier 815-15 applications are offered with narrow whitewall and whitewall-redline styling, while 205R15 radial options include wide whitewall and blackwall. Sidewall style therefore follows the correct size and construction phase of the car, not just a universal Bentley preference.

For a restoration, the strongest approach is to decide first whether the car is being returned to an earlier bias-ply presentation or a later radial-era appearance. Once that is settled, compare the sidewall treatment to period photos and restoration goals so the Bentley T Series looks cohesive from ride height to wheel opening rather than simply fitted with a decorative sidewall.

A Bentley T Series can be driven on public roads when the tires are the correct size, the proper construction for the car’s setup, and in sound condition with no age-related structural concerns. The available fitments here include both bias-ply and radial products, so safety begins with using the correct type for the specific Bentley T Series year and wheel package. Condition, inflation, and wheel integrity matter just as much as the size code.

Before any regular road use, the wise approach is to inspect the full tire-and-wheel assembly and make sure all four tires match in service type and condition. A Bentley T Series is a substantial, powerful luxury car, so even a correct-size tire needs to be treated as part of a complete mechanical system rather than as an isolated replacement part.

Before driving a Bentley T Series, check inflation pressure, visible sidewall condition, tread condition, valve stems, and any signs that the tire has gone out of round from storage. You should also verify that the car is wearing a matched set of the correct size family, whether that is 815-15 bias-ply or one of the later radial sizes. On a collector car, wheel condition and age of the tires deserve equal attention.

That pre-drive routine is especially valuable after the car has been parked for weeks or months. A Bentley T Series may look ready to go after a brief visual glance, but a more careful check can catch low pressure, cracking, or storage damage before it turns into steering shake, poor braking behavior, or a roadside failure.

The appropriate speed for a Bentley T Series on original-type tires depends on the exact tire fitted, its condition, and whether the car is on earlier bias-ply or later radial construction. Even where a Bentley T Series is capable of sustained speed, collector-car tires should be treated conservatively, particularly if the car sees infrequent use or the tires are older. Mechanical condition and tire age can become the limiting factor well before the car’s design potential.

A sensible rule is to build speed gradually only after the tires have been inspected, warmed in service, and shown stable behavior. Owners using an earlier bias-ply Bentley T Series should be especially cautious, while later radial-equipped cars still benefit from moderate, measured use unless the entire tire, wheel, and chassis condition has been recently evaluated.