The 1949 Bentley Mark represents the immediate postwar British luxury tradition, with restrained coachwork and the solid road manners that made the Mark VI especially important to Bentley’s recovery years. Owners typically approach this car with an eye toward authenticity, drivability, or a careful balance of both. Tire selection reflects that same choice, because the 1949 Bentley Mark is supported by both 650-16 bias-ply fitment and 185R16 radial fitment on 16-inch rims. That opens the door to traditional blackwall or wide whitewall bias-ply styles as well as classic blackwall radials from Michelin, Avon, and Vredestein. The right choice depends on the car’s wheels, the look you want, and how the car will actually be used on the road.
Which Tire Size Is Right for The 1949 Bentley Mark
The 1949 Bentley Mark uses two primary tire sizes, and both fit the same 16-inch rim diameter. The key difference is construction: 650-16 is a vintage bias-ply size, while 185R16 is a Euro-metric radial size. Since the Bentley Mark VI can use either, the real decision is whether you want a more traditional bias-ply presentation or a radial setup, then narrowing the choice by wheel width, brand, and sidewall style.
185R16 is a Euro-metric radial size in which 185 refers to nominal section width in millimeters, R denotes radial construction, and 16 identifies the wheel diameter in inches. On a 1949 Bentley Mark, this size suits owners looking for a radial-format fitment while staying with the correct 16-inch rim diameter. Available choices center on blackwall radials from Michelin, Avon, and Vredestein across series such as Michelin X Radial, Turbosteel CR6D, and Sprint Classic. This size is worth considering when the car is being driven regularly and the wheel width matches the tire’s requirements.
650-16 is a numeric bias-ply size in which 650 represents an approximate 6.50-inch nominal section width and 16 identifies the rim diameter. On the 1949 Bentley Mark, it provides the more traditional vintage construction choice and the broadest range of appearance options. Available tires include blackwall and wide whitewall styles from brands such as BFGoodrich, Coker Classic, Firestone, Garfield, Lester, Goodyear, STA, and Tornel, with series ranging from classic passenger designs to truck-style tread patterns. This size deserves careful review when restoration appearance matters or when the car is equipped for a period-style bias-ply setup.
Tire fitment is straightforward here because the covered sub-model uses the same two supported sizes. Checking the exact sub-model still matters so the tire choice stays aligned with the wheel setup and whether the car is being kept in a bias-ply or radial configuration.
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1949 Bentley Mark VI
The 1949 Bentley Mark VI can use either 185R16 radial or 650-16 bias-ply tires on a 16-inch rim. That gives the owner a clear choice between a classic radial approach and a more traditional bias-ply presentation, with wheel width and intended appearance guiding the final selection.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1949 Bentley Mark Tires for Sale
Available 1949 Bentley Mark tire choices span 185R16 blackwall radials from Michelin, Avon, and Vredestein, along with a much wider 650-16 bias-ply selection in blackwall and wide whitewall styles. Product differences also include series character and rim-width requirements across the available 16-inch options.
Common 1949 Bentley Mark tire questions usually come down to choosing between 650-16 bias-ply and 185R16 radial fitment, confirming 16-inch wheel compatibility, and deciding how much restoration appearance should influence the final tire choice.
Tire Size & Fitment
What tire size fits a 1949 Bentley Mark?
A 1949 Bentley Mark uses two supported tire sizes: 185R16 in radial construction and 650-16 in bias-ply construction. Both sizes are associated with the Bentley Mark VI and both use a 16-inch rim diameter, so the fitment question is less about wheel diameter and more about selecting the appropriate construction and tire style.
That means the next step is confirming the actual wheel width on the car and deciding whether the goal is a traditional bias-ply look or a radial setup. Cars that have been restored, re-wheeled, or modified over the years should be checked carefully before assuming either size is automatically appropriate for the present wheel and clearance setup.
What size rim does a 1949 Bentley Mark use?
The supported tire sizes for a 1949 Bentley Mark are built around a 16-inch rim diameter. Both 185R16 and 650-16 are 16-inch tires, which keeps wheel diameter consistent even though the construction and sizing systems are different.
Rim diameter alone does not settle the whole fitment question, especially when comparing a radial to a bias-ply tire. Wheel width should also be checked, since some 185R16 and 650-16 products call for different width ranges. That is particularly important on a collector car that may no longer have its original wheels or may have been fitted with replacements long ago.
Does the 1949 Bentley Mark VI use the same tire size?
Yes. The 1949 Bentley Mark VI is supported by the same two tire sizes used for the 1949 Bentley Mark core fitment: 185R16 radial and 650-16 bias-ply. Both are tied to 16-inch wheels, so there is no separate rim-diameter split within the covered sub-model.
The practical difference is not sub-model variation but construction choice. A Bentley Mark VI owner should focus on the car’s current wheels, the desired appearance, and how the car will be driven. A bias-ply tire changes the presentation of the car, while a radial choice keeps the same wheel diameter but follows a different sizing system and product range.
Bias-Ply & Radial Options
Is 650-16 a bias-ply or radial tire for the 1949 Bentley Mark?
650-16 is the bias-ply tire size used on the 1949 Bentley Mark. It is a vintage numeric size built for a 16-inch rim and is offered in a wide range of blackwall and wide whitewall styles, making it the more traditional-looking fitment of the two supported size choices.
Choosing 650-16 usually comes down to whether the car is being kept in a period-style presentation or restored with a stronger emphasis on vintage tire appearance. Since product specifications vary, the wheel width should still be checked before selection. Tread style and sidewall treatment also matter here because 650-16 covers both passenger-style and more utility-oriented bias-ply offerings.
Should I use bias-ply or radial tires on a 1949 Bentley Mark?
A 1949 Bentley Mark can be set up with either 650-16 bias-ply tires or 185R16 radial tires, both on 16-inch rims. The right direction depends on what matters most to the owner: a more traditional vintage appearance and construction, or a radial-format tire choice from classic European-style tire lines.
The decision should account for wheel width, the current condition and setup of the car, and how the Bentley will be used. A restoration-focused car may lean toward bias-ply for presentation, while a road-driven car may lead an owner to evaluate radial options. Either way, the tire should be matched to the actual wheels rather than selected by size code alone.
What should I check before converting my 1949 Bentley Mark from bias-ply to radial tires?
Before moving a 1949 Bentley Mark from 650-16 bias-ply tires to 185R16 radials, confirm that the car’s wheels meet the radial tire’s width requirements and that the 16-inch wheels are in sound condition. It is also important to verify that the car is truly set up for the radial size being considered rather than simply matching the rim diameter.
Steering clearance, suspension condition, and body clearance all deserve attention on an older Bentley, especially if the car has had restoration work or wheel changes over the years. A radial conversion can be a sensible alternative, but it should be treated as a complete fitment check, not just a construction swap based on the sidewall size marking.
Choosing the Right Tire
What should I consider when choosing a tire for a 1949 Bentley Mark?
Start with the two supported fitments: 650-16 bias-ply and 185R16 radial. From there, the most important factors are the wheel width on the car, the construction you want to run, and whether the Bentley is being selected for restoration appearance, regular road use, or a balance of both.
After construction is settled, compare brand, tire series, sidewall style, and any useful product specifications such as load figures or rim-width ranges. The available choices are broad in 650-16 and more focused in 185R16, so the best match often comes from narrowing the goal first rather than starting with brand alone.
What sidewall styles are available for 1949 Bentley Mark tires?
Sidewall choices for the 1949 Bentley Mark include blackwall and wide whitewall, depending on the tire size and product line. The 185R16 radial options are blackwall, while 650-16 bias-ply options are available in both blackwall and wide whitewall styles.
That makes sidewall style part of the construction decision as well as the appearance decision. An owner pursuing a restrained touring look may stay with blackwalls, while a restoration-oriented presentation may lead to one of the wide whitewall 650-16 options. The sidewall treatment should complement the car’s overall finish without overlooking wheel compatibility and the intended tire construction.
What brands offer tires for the 1949 Bentley Mark?
The 1949 Bentley Mark is supported by several brands across its two tire sizes. 185R16 radial options include Michelin, Avon, and Vredestein, while 650-16 bias-ply choices include BFGoodrich, Coker Classic, Firestone, Garfield, Lester, Goodyear, STA, Tornel, and Excelsior.
Brand selection is most useful when combined with the correct size, construction, and appearance goal. Some brands are represented in passenger-style classic series, while others appear in more utility-oriented tread patterns within 650-16. Rather than choosing by brand name alone, compare the series, sidewall style, and wheel-width requirements that best suit the Bentley’s present setup.
Restoration & Appearance
Which tire should I choose for a period-style 1949 Bentley Mark?
For a period-style 1949 Bentley Mark, 650-16 bias-ply tires usually provide the most traditional starting point because they use a vintage numeric size and are available in classic blackwall and wide whitewall presentations. That size also offers the broadest range of visual character among the supported Bentley fitments.
The final choice still depends on how strictly the car is being restored and how it is meant to be used. Owners pursuing exact historical accuracy should verify details through marque references, restoration records, or Bentley-specific sources. For many cars, the practical decision is selecting a 650-16 tire whose sidewall and tread style suit the era and the car’s finished presentation.
How does tire construction affect the appearance of a restored 1949 Bentley Mark?
Tire construction changes the visual character of a restored 1949 Bentley Mark as much as the sidewall treatment does. A 650-16 bias-ply tire gives the car a more traditionally vintage presentation, while a 185R16 radial introduces a more modern sizing format even though it remains appropriate to the same 16-inch rim diameter.
That difference matters on a postwar Bentley because wheelhouse presence and sidewall impression are part of the car’s overall stance. A restoration-focused owner should consider the tire as a visible design element, not just a mechanical replacement part. Blackwall radial options keep the look restrained, while bias-ply choices allow a broader range of classic visual treatments.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1949 Bentley Mark?
Yes. Modifications can affect tire fitment on a 1949 Bentley Mark even when the tire still carries the correct 16-inch diameter. Replacement wheels, altered wheel widths, suspension changes, brake conversions, or body and fender work can all change how either 650-16 bias-ply tires or 185R16 radials sit on the car.
That is why the current setup should be inspected before selecting a tire by size alone. Clearance at full steering lock, wheel condition, and the relationship between tire width and wheel width all deserve attention. On an older Bentley, decades of restoration or maintenance history can matter just as much as the original fitment pattern.
What should I inspect before driving a 1949 Bentley Mark on new tires?
Before driving a 1949 Bentley Mark on new tires, inspect the wheels for correct diameter, proper width, and sound condition, then confirm that each tire is mounted in the intended size and construction. It is also wise to check valve stems, balance, inflation, and basic clearances at the fenders and steering components.
A collector Bentley should also be looked over for suspension wear, brake condition, and any signs that the car sits unevenly or has unusual rubbing points. A fresh set of tires performs best when the surrounding mechanical condition is stable. A short, careful road test helps confirm tracking, clearance, and general confidence before longer use.
How should tires on a collector 1949 Bentley Mark be maintained?
Tires on a collector 1949 Bentley Mark should be checked regularly for pressure, air loss, tread wear, cracking, bulges, and cuts, even if the car covers very few miles each year. Low-use collector cars often age their tires through time and storage conditions rather than mileage alone.
Storage practices matter as much as routine inspection. Keeping the Bentley away from prolonged sunlight, moisture, excess heat, and ozone sources helps preserve the tires, whether the car runs 650-16 bias-ply tires or 185R16 radials. Any sign of uneven wear or recurring pressure loss should prompt a closer look at the wheels, suspension, and overall setup.
