1972 Bentley Tire Fitment Guide

1972 Bentley vehicles use two tire sizes: 815-15 and 205R15. Both apply to the 1972 Bentley T, and both mount on 15-inch rims. Rim width guidance differs by size where published: 815-15 fits 5.00- to 6.50-inch rims, while 205R15 is paired with 5.50- to 6.00-inch rims on the products that carry width guidance.

That means the first step is not choosing between Bentley models, since only the Bentley T is covered here, but deciding which tire format best suits your goals. An owner pursuing a more traditional look may lean toward the bias-ply 815-15, while an owner focused on radial construction may prefer 205R15. Checking the actual wheel width on the car before ordering is the safest way to avoid a mismatch.

On a 1972 Bentley, 815-15 is a numeric bias-ply tire size. The 8.15 figure refers to nominal section width in inches, and the 15 identifies the wheel diameter in inches. In this older sizing system, the code does not work like a modern metric radial size, and it points to bias-ply construction rather than a radial casing.

That matters because the number tells you both the era of the sizing system and the kind of driving feel to expect. A Bentley T on 815-15 tires keeps a more traditional look and construction style, which is often desirable for restoration-minded owners. It also means you should compare the tire to the wheel width and the car’s intended use instead of assuming it behaves like a later radial simply because the rim diameter matches.

On a 1972 Bentley, 205R15 is a euro-metric radial size. The 205 refers to section width in millimeters, the R identifies radial construction, and the 15 is the wheel diameter in inches. Because no aspect ratio is written into the code, this format conventionally indicates an 80-series profile rather than a lower-profile modern performance tire.

That sizing format places the 205R15 in a more modern tire family than 815-15, even though both fit 15-inch wheels. For a Bentley T owner, the practical takeaway is that 205R15 is not just another way of writing the same tire. It represents a radial option with different construction character, and it should be chosen intentionally after confirming wheel width and deciding how original or how road-oriented you want the finished car to feel.

The 815-15 and 205R15 both fit the 1972 Bentley T, but they represent two different construction eras. The 815-15 is a bias-ply size with traditional sidewall styling options from BFGoodrich, while the 205R15 is a radial size available as either a wide whitewall Phoenix or a blackwall Avon. The choice is less about basic wheel diameter and more about whether you want an earlier-period tire character or a later-style radial construction.

A Bentley owner chasing a restoration-oriented look will usually start with 815-15, especially if sidewall presentation is central to the car’s appearance. An owner who plans to use the car more regularly on modern roads may prefer the radial 205R15. Either way, confirm the wheel width on the car before settling on a size, because both fit 15-inch rims but do not share the same published width range.

1972 Bentley tires are available in several sidewall styles depending on size. The 815-15 bias-ply choices include a narrow whitewall and a whitewall-redline combination, while the 205R15 radial choices include a wide whitewall and a blackwall. That gives the Bentley T owner a broad visual range, from formal touring presentation to a more restrained radial look.

For a luxury British saloon of this period, whitewall styling is generally the more era-appropriate visual direction, while a blackwall radial can suit an owner who wants a subtler appearance. The redline option is more specialized and changes the personality of the car more dramatically. Sidewall style affects how the car reads at a glance, so it is worth deciding on the look you want before narrowing down the exact product.

Three brands cover 1972 Bentley tire sizes: BFGoodrich, Phoenix, and Avon. BFGoodrich supplies the 815-15 bias-ply options, while Phoenix and Avon supply the 205R15 radial options. That split means brand choice follows size choice first, then sidewall style and construction after that.

Each brand brings a slightly different emphasis within the correct size. BFGoodrich is tied to the period-style bias-ply route, Phoenix offers a radial with a pronounced wide whitewall look, and Avon provides a blackwall radial with a V speed rating in the size marking. Once you decide whether your Bentley T should wear bias-ply or radial tires, the brand selection becomes much easier to narrow down.

Rim width requirements for 1972 Bentley tires depend on the size you choose. The 815-15 bias-ply size fits rims from 5.00 to 6.50 inches wide, while the 205R15 radial size is paired with 5.50- to 6.00-inch rims on the products that include width guidance. Both sizes use a 15-inch wheel diameter, but they do not share the same published rim-width spread.

That difference is important when a Bentley T still carries original wheels or has had wheels changed during restoration. A tire can have the correct 15-inch diameter and still be less than ideal on a wheel that is too narrow or too wide for the casing. Measuring the wheel before purchase is the cleanest way to choose between the two sizes with confidence.

Inner-tube status is not the same across every 1972 Bentley tire choice, so it should be checked product by product. The 815-15 bias-ply tires do not carry a tube-type or tubeless marker in the size marking here, and the same is true for the Phoenix 205R15. The Avon 205R15 also does not use a tube marking in the size string, so the safest approach is to confirm the specific tire’s sidewall marking and the wheel’s design before final installation.

This matters most on older collector cars because wheel construction can influence whether a tubeless setup is appropriate even when the tire itself is modern. A Bentley T owner should inspect the wheel condition, valve stem area, and bead seat before assuming anything from size alone. If the car retains older wheels, a marque specialist or experienced vintage tire installer can help confirm the proper setup.

A 1972 Bentley T can generally use both 815-15 and 205R15 on original-style 15-inch wheels because both sizes share the same rim diameter. The remaining question is wheel width, since 815-15 spans a broader 5.00- to 6.50-inch range, while 205R15 is paired with a narrower 5.50- to 6.00-inch range where width guidance appears.

That makes the original wheel’s actual width the key checkpoint before changing from one size format to the other. Many owners assume that matching the 15-inch diameter is enough, but width compatibility still matters for how the tire seats and carries its shape. Confirm the wheel measurement and condition before moving between bias-ply and radial options.

A 1972 Bentley should be stored on clean, properly inflated tires in a cool, dry space away from direct sunlight, electric motors, battery chargers, welders, and other ozone sources. If the car will sit for long stretches, roll it periodically to avoid developing flat spots. Bias-ply tires tend to show temporary flat-spotting more readily during storage than radials, so that is especially worth watching if your Bentley T wears 815-15 tires.

Long-term storage habits affect sidewalls as much as tread. Moisture, ultraviolet exposure, and static loading can age a collector tire even when miles are low. If the car will be parked for a season or longer, some owners use stands to reduce weight on the tires, but the suspension should still be supported correctly. A short inspection before the first drive back on the road is always wise.

Tires on a 1972 Bentley usually age out before they wear out, especially on a collector car that sees occasional use. A practical rule is to begin evaluating them closely around five to seven years of age and to treat roughly ten years as the point where replacement deserves serious consideration, regardless of remaining tread. The DOT date code on the tire is the best way to establish actual age.

That age-based approach matters because a Bentley T may cover modest annual mileage while still carrying old rubber. Sidewall cracking, hardening, vibration, and pressure loss become more important than tread depth alone on cars like this. Keeping a note of installation dates and checking the DOT code during routine service helps avoid the common collector-car mistake of trusting tires simply because they still look deep in tread.

Tires on a 1972 Bentley should be inspected before every drive, and especially before any longer outing. Look for visible cracking, cuts, bulges, uneven wear, and signs of air loss, and check inflation pressure when the tires are cold. If your Bentley T uses an older-style setup that involves tubes, valve stems and tube condition deserve the same attention as the casing itself.

Frequent inspection is important because collector cars can sit for weeks and then be asked to run at highway speeds with little warning. Small age-related issues often show up in the sidewall or around the valve area before they become obvious in the tread. A short walk-around and pressure check takes only a few minutes and can prevent a ruined tour or an avoidable roadside failure.

A 1972 Bentley T sits right in the period when radial tires had become well established on premium European cars, so radial fitment is historically appropriate for the era. At the same time, the Bentley T is also served by an 815-15 bias-ply option for owners seeking an earlier visual character or a particular restoration look. No original-equipment brand should be assumed from size alone.

For the most accurate restoration, confirm your car’s market, delivery history, and judging standard before settling on a tire. Some events emphasize size and sidewall appearance more than brand, while others are stricter about period-correct construction. Factory literature, marque clubs, and Bentley specialists are the best places to verify what is expected for a specific car rather than relying on era assumptions alone.

Correct tire fitment matters on a 1972 Bentley because show judging often pays close attention to size, construction type, and sidewall presentation. A Bentley T prepared for authenticity can lose credibility if it wears a tire with the wrong visual era, such as a modern blackwall radial when a formal whitewall presentation is expected for the car’s restoration theme. Construction choice can also change the car’s overall stance and period impression.

That does not mean every show car must wear the same tire, but it does mean the choice should be intentional. A well-restored touring Bentley can justify a radial if the event standard allows it, while a car built around a traditional presentation may look more convincing on a bias-ply style. Checking the event rulebook and marque-club guidance before final selection can save a lot of rework.

For the 1972 Bentley, both Phoenix and Avon cover the 205R15 radial size, but they differ in presentation and supporting details. Phoenix uses a 2.50-inch wide whitewall and carries a 1609-pound load rating at 34 psi with a published rim-width range of 5.50 to 6.00 inches. Avon’s Turbosteel is a blackwall 205R15 97V, with the V speed rating indicating a 149 mph ceiling and a published load figure of 1,609 pounds.

The practical difference is that Phoenix leans toward a more formal period appearance, while Avon suits an owner who wants a cleaner blackwall radial look. Both keep the Bentley T in the 205R15 radial family, but they create a different visual result and carry different sidewall markings. If appearance is the deciding factor, choose that first and then confirm your wheel width against the tire you prefer.

1972 Bentley tires can be appropriate for highway driving when they are the correct size, properly inflated, and in sound condition. The 205R15 Avon carries a V speed rating, which corresponds to a 149 mph ceiling, while the other sizes and products here do not all show speed letters in the size marking. That means highway suitability depends on the exact tire chosen, along with its age and condition, not simply the fact that it fits the car.

For normal touring speeds, the Bentley T’s overall mechanical condition matters just as much as the tire itself. Suspension health, brake performance, alignment, and steering condition all influence how secure the car feels on the road. A reproduction or classic-style tire should be treated as part of the full system, so inspect the whole car before sustained highway use rather than focusing on the speed symbol alone.

Inflation pressure for a 1972 Bentley depends on the tire size and the specific tire’s own load-and-pressure marking. The 815-15 BFGoodrich tires carry a maximum load of 1610 pounds at 32 psi, while the Phoenix 205R15 carries 1609 pounds at 34 psi. Those figures describe the tire’s rated capacity at that pressure and should not be treated as a universal running pressure for every Bentley tire or for every driving condition.

The best approach is to start with the factory recommendation for the Bentley T, then compare it with the tire manufacturer’s guidance for the exact reproduction or radial product you are using. Pressure should never be copied from one size to another just because both fit a 15-inch wheel. If the car is heavily loaded for touring, recheck pressures cold and confirm that all four tires match your intended setup.

Before a longer drive in a 1972 Bentley, inspect each tire for sidewall cracking, punctures, cuts, bulges, uneven wear, and proper cold inflation pressure. Check the spare as well, because collector-car spares are often older than the tires on the ground. If your setup uses tubes or older valve hardware, inspect stems closely for aging or leakage before heading out.

A longer trip in a Bentley T also calls for a broader pre-drive check beyond the tires. Wheel fasteners, brake feel, fluid levels, steering response, and suspension condition all deserve attention on a car of this age. Tires are only one part of a successful tour, but they are the easiest place to catch a preventable problem before it interrupts the drive.