1947 Bentley Tire Fitment Guide

1947 Bentley vehicles in this range use two tire sizes: 185R16 and 650-16, and both apply to the Bentley Mark. Each size mounts on a 16-inch rim, but the constructions differ. The 185R16 choices are radial tires, while 650-16 is a traditional bias-ply size. Rim-width guidance appears on available products, with 185R16 examples covering 4.50 to 6.00 inches and 5.0 to 6.5 inches, while 650-16 products with published fitment data cover 4.50 to 5.00 inches.

That means the first question is not whether you have the right year, but whether you want the bias-ply size associated with period presentation or the radial size that keeps the same rim diameter while changing construction. Since both fit the Bentley Mark, the choice usually comes down to originality goals, wheel-width compatibility, and how the car will be driven. Checking the actual wheel before ordering is especially important when moving between bias-ply and radial options.

On a 1947 Bentley, 650-16 is a classic numeric bias-ply size. The 6.50 portion refers to the nominal section width in inches, and the 16 refers to the wheel diameter in inches. It is not a modern metric code, and it does not describe the tire the way a later radial size would. Available 650-16 products for Bentley Mark applications are bias-ply tires offered in blackwall and wide whitewall styles.

For a buyer, 650-16 usually signals a traditional postwar fitment style and the visual proportions expected on a late-1940s luxury car. It is the size to consider when authenticity matters, especially if the car is restored in a period-correct manner. The practical next step is to confirm your wheel width, because published 650-16 fitments in this range commonly call for 4.50- to 5.00-inch rims.

On a 1947 Bentley, 185R16 is an older Euro-metric radial size. The 185 indicates nominal section width in millimeters, the R indicates radial construction, and the 16 indicates a 16-inch wheel diameter. Because this older metric style does not state an aspect ratio, it is conventionally treated as an 80-series profile unless a different profile is specifically printed. The available 185R16 Bentley choices are blackwall radials from Michelin, Avon, and Vredestein.

That code tells you the tire belongs to a later radial sizing language even though it still fits the same 16-inch wheel diameter as the bias-ply alternative. A Bentley owner considering 185R16 is usually looking for a more modern radial feel without changing the wheel diameter. The smartest comparison is between the tire's approved rim-width range, sidewall appearance, and speed rating rather than treating all 185R16 products as identical.

Within the 1947 Bentley range covered here, the Bentley Mark uses both listed tire sizes: 185R16 and 650-16. There is no model split where one Bentley model takes only one size and another takes a different size. Both options share the same 16-inch rim diameter, but they represent different construction types and different eras of sizing language.

That simplifies the search compared with year-make pages that mix several models with different wheel diameters. On a 1947 Bentley, the more important choice is how you want the car to present and behave: period-correct bias-ply character or radial construction on the same nominal wheel diameter. Once you know your wheel width and restoration goals, narrowing the choice becomes much easier.

A 1947 Bentley owner choosing between 650-16 and 185R16 is deciding between two constructions on the same 16-inch rim diameter. The 650-16 options are bias-ply tires, which align with the period character of a late-1940s Bentley. The 185R16 options are radials, offered as blackwalls from Michelin, Avon, and Vredestein, with speed ratings that include S and V depending on the product. Each size fits the Bentley Mark, so the decision is less about model fitment than about how you want the car equipped.

If your priority is restoration presentation and era-correct tire character, 650-16 is the natural place to start. If you plan to use the car more regularly on modern roads, 185R16 may better match those expectations while preserving the original 16-inch wheel diameter. Either way, confirm the wheel width before committing, because the approved rim-width ranges are not identical across all products.

1947 Bentley tires are available in more than one sidewall style, but the choices depend on size. The 185R16 radial options are blackwalls. The 650-16 bias-ply range includes both blackwall and wide whitewall versions, with brands such as BFGoodrich and Garfield offering wide whitewalls and Firestone and Coker Classic represented in blackwall form within the listed group.

That matters because sidewall appearance changes the personality of a postwar Bentley quite noticeably. Blackwalls usually give a more restrained, formal look, while a wide whitewall leans into the visual style many collectors associate with late-1940s luxury cars in period presentation. If the car will be judged, it is wise to compare your chosen sidewall style with marque-club guidance and period photos before finalizing the tire.

Several brands offer tires for 1947 Bentley applications. In 185R16 radial form, the available brands are Michelin, Avon, and Vredestein. In 650-16 bias-ply form, the listed brands include BFGoodrich, Coker Classic, Firestone, and Garfield. That gives Bentley Mark owners a mix of European-style radial choices and traditional American-style bias-ply offerings depending on the size selected.

Brand choice on a 1947 Bentley often comes after the more important decision about construction and appearance. Once you decide between radial and bias-ply, you can compare the available brands by sidewall style, speed rating where shown, and approved rim-width range. It is a better approach than selecting a brand first and then trying to force the car into a size or construction that does not match your restoration goals.

1947 Bentley tires in these sizes use a 16-inch rim diameter, but the approved wheel widths vary by size and product. The Michelin 185R16 fits 4.50- to 6.00-inch rims, while the Vredestein 185R16 fits 5.0- to 6.5-inch rims. In 650-16 bias-ply form, published fitments such as BFGoodrich, Firestone, and Garfield call for 4.50- to 5.00-inch rims. Those ranges should be treated as tire-specific, not as one universal rule for every product carrying the same nominal size.

That is why wheel measurement matters before changing constructions on a Bentley Mark. A wheel that works well with a bias-ply 650-16 may fall near the narrow end of a radial's acceptable range, and one radial brand may allow a wider wheel than another. Measuring the actual wheel and comparing it to the chosen tire's approved range is the safest way to avoid fitment surprises.

Inner-tube requirements for 1947 Bentley tires depend on the specific product rather than the year and make alone. In 185R16, the Michelin X Radial is marked TT, indicating tube type, while the Avon and Vredestein examples are not marked the same way. That means tube status varies by product within the radial size. The 650-16 bias-ply listings shown here do not carry a uniform tube marker in the size description, so the exact tire's sidewall marking should be checked before installation.

On an older Bentley, tube use also depends on the wheel itself, especially if the original wheel design was intended for tube-type service. Matching the tire marking to the wheel condition and wheel type is more important than assuming all 16-inch tires for the car install the same way. When in doubt, consult the tire maker's specifications and a shop familiar with vintage fitments.

A 1947 Bentley wheel can often accept either listed tire size because both 650-16 and 185R16 use a 16-inch rim diameter. That shared diameter is the key reason owners often compare these two sizes directly. The remaining question is wheel width, since 650-16 bias-ply products commonly publish a 4.50- to 5.00-inch range, while 185R16 radial products can extend wider depending on brand.

In practical terms, original wheels may work with both sizes, but they should not be treated as automatically interchangeable without measurement. A Bentley owner moving from bias-ply to radial should verify that the wheel width falls within the chosen radial's approved range and that the wheel itself is suitable for the installation method being used. Diameter alone is not enough to settle the question.

A 1947 Bentley should be stored in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing equipment that can age sidewalls prematurely. Keep the tires clean, maintain inflation, and move the car periodically if it will sit for long periods. Bias-ply tires such as 650-16 are especially prone to flat-spotting during extended storage, while any older-style collector tire can suffer from surface cracking if exposed to heat and ozone for too long.

Owners who store the car for a season often do well by rolling it occasionally or supporting the vehicle so one section of tire does not carry the load continuously. Radials generally recover from storage flat-spotting differently than bias-ply tires, so the construction you choose affects how the car behaves after sitting. Good storage habits protect both the tire and the way the Bentley feels when it returns to the road.

Tire age matters more than mileage on most 1947 Bentley cars because many collector vehicles cover relatively few miles each year. A good rule is to begin evaluating tires closely once they are five to seven years old and to treat around ten years as a serious replacement consideration regardless of remaining tread depth. The DOT date code and the tire's overall condition should guide that decision, along with how the car has been stored and used.

A Bentley that looks lightly driven can still be riding on tires that are past their best service life. Sidewall aging, hardening rubber, and internal fatigue do not always show up as obvious tread wear. Reviewing the age of all five tires, including the spare, gives a much clearer picture of road readiness than mileage alone on a low-use postwar collector car.

Tires on a 1947 Bentley should be inspected before every drive and again before any longer outing. Look for sidewall cracking, tread damage, bulges, uneven wear, and any sign that the tire is losing pressure. If your chosen tire or wheel setup uses tubes, include the valve stems and any slow-leak behavior in that inspection routine as well. A quick walkaround is especially important on a collector car that may sit for stretches between uses.

Frequent inspection helps catch age-related problems early, which is more useful on a vintage Bentley than waiting for mileage-based service intervals. It also gives you a chance to feel whether the car has developed flat spots after storage and to confirm the spare is still serviceable. Tire condition should be treated as part of the car's normal pre-drive ritual, not a once-a-season task.

A 1947 Bentley Mark would have been fitted in the bias-ply era, so a bias-ply size such as 650-16 best reflects the construction type associated with its original period. Radial options like 185R16 are available today for owners who want a different road-use experience, but they represent a later construction style rather than a postwar factory norm. No original-equipment brand should be assumed without market-specific and coachbuilder-specific verification.

For restoration work, the safest path is to treat 650-16 bias-ply as the baseline and then confirm sidewall style and presentation against period photos, surviving cars, and Bentley marque resources. Postwar luxury cars can vary by market and body style, so clubs and specialists remain the best source for final judging-level confirmation. That extra step matters more than simply matching the rim diameter.

Correct tire fitment matters on a 1947 Bentley because judging standards for collector cars often consider size, construction type, and sidewall appearance as part of the car's overall authenticity. A 650-16 bias-ply tire is generally more consistent with the Bentley Mark's late-1940s presentation than a modern radial construction. Sidewall style can matter too, especially when the goal is to match the visual language expected for a formal postwar luxury car.

That does not mean every event judges the car the same way, so owners should match the tire to the type of showing they actually do. A touring Bentley may prioritize drivability, while a concours-oriented Bentley may need a stricter period look. Marque clubs and event rulebooks are the right places to confirm how much flexibility exists before you commit to a specific size and sidewall style.

On a 1947 Bentley, blackwall and wide whitewall options appear within the 650-16 bias-ply size, while the listed 185R16 radial choices are blackwall only. The difference is visual rather than dimensional when the same size is being compared. Wide whitewalls from brands such as BFGoodrich and Garfield give the Bentley a more overt late-1940s luxury appearance, while blackwalls from brands such as Firestone and Coker Classic create a more restrained presentation.

That makes sidewall choice part of the restoration story, not just a cosmetic afterthought. Owners trying to recreate a formal delivery look or a U.S.-market luxury style may lean toward a whitewall, while others may prefer the understated look of a blackwall. Period photos of cars trimmed similarly to yours are often the best guide when deciding which presentation suits the Bentley most convincingly.

1947 Bentley tires can be suitable for highway driving when they are in good condition, correctly fitted, and used within their design limits. The 185R16 radial offerings include products rated S and V, with S carrying a 112 mph ceiling and V carrying a 149 mph ceiling. The 650-16 bias-ply options listed here do not show the same modern speed-letter format in the available product descriptions. On a postwar Bentley, the car's own brakes, suspension, steering, and age-related mechanical condition are often just as important as the tire itself at normal road speeds.

For most owners, the practical takeaway is to choose a tire that matches how the car will actually be driven and then keep the entire chassis in sound condition. A high speed rating does not turn a 1947 Bentley into a modern car, and a period-style bias-ply tire should be driven with period-appropriate expectations. Stable highway use starts with honest setup and maintenance, not just the size printed on the sidewall.

Inflation pressure for 1947 Bentley tires should be set by the factory vehicle recommendation and then checked against the tire maker's published limits for the specific product. In the available 650-16 bias-ply range, some products list a maximum load of 1,580 pounds at 32 psi. In 185R16 radial form, one Vredestein example lists 1,433 pounds at 51 psi, which is a product rating rather than a blanket Bentley setting. Those figures should never be transferred from one size or construction to another as if they were interchangeable.

The right approach is to start with the Bentley's original guidance if available, then make sure the chosen tire's allowable pressure range supports that use. Bias-ply and radial tires do not always respond the same way to inflation changes, and the approved wheel width also influences how the tire behaves. Keeping a written record of your final cold-pressure setting helps maintain consistency across all four corners.

Before a longer drive in a 1947 Bentley, inspect each tire for sidewall cracking, cuts, bulges, unusual wear, and correct cold inflation. Check the valve stems, and if your tire or wheel setup uses tubes, pay close attention to any history of slow pressure loss. The spare should be inspected too, not just the four road tires. On an older car, tire condition is one part of a broader pre-drive check that also includes brakes, steering, cooling, and fluid levels.

Longer drives expose weaknesses that a short local trip may not reveal, especially on a postwar luxury car that may spend much of its life stored. It is wise to drive the Bentley briefly before departure to feel for vibration, flat-spotting, or pull, then recheck pressures once the car has cooled again if anything seems off. A calm, methodical inspection routine is one of the best habits an owner can develop.