The 2019 Bentley Mulsanne represents the final era of Bentley’s hand-built flagship sedan, combining traditional coachbuilt character with modern grand-touring luxury. Buyers looking after one today are usually balancing appearance, ride quality, and proper fitment on a very specific wheel setup. Tire selection centers on two radial sizes, 265/40R21 and 265/45R20, and the first step is confirming which wheel diameter is actually on the car. Because the Base model can use either size while the Speed uses 265/40R21, the real decision is not just brand choice but matching the tire to the car’s exact wheel and intended use.
Which Tire Size Is Right for The 2019 Bentley Mulsanne
The 2019 Bentley Mulsanne uses two primary tire sizes, and the right one depends on the exact sub-model and wheel diameter on the car. Both are radial metric sizes, but one fits a 21-inch wheel and the other fits a 20-inch wheel. Before choosing a tire, confirm whether the car is a Base or Speed model and then verify the actual wheel size, especially if the car has ever been changed from its original setup.
A 265/40R21 tire uses a 265-millimeter section width, a 40-series aspect ratio, radial construction, and a 21-inch rim diameter. On the 2019 Bentley Mulsanne, this is one of the primary fitments and it is the size used by the Mulsanne Speed. The lower-profile format gives this size a distinctly modern luxury-performance character, while still keeping overall tire diameter very close to the 20-inch alternative. This is the size to evaluate when the car is equipped with 21-inch wheels and you want to preserve the intended wheel-and-tire proportion.
A 265/45R20 tire keeps the same 265-millimeter nominal width as the 21-inch option, but pairs it with a 45-series profile on a 20-inch rim. For the 2019 Bentley Mulsanne, this is a primary radial fitment used on the Base model. Its sidewall is slightly taller in size format terms, even though overall diameter remains very close to the 21-inch fitment, so wheel diameter confirmation matters more than broad dimensional assumptions. This size should be considered only when the car is running 20-inch wheels that match this fitment.
Tire fitment on the 2019 Bentley Mulsanne depends on the exact sub-model and wheel package. The Base model can use either of the two radial sizes, while the Speed is tied to a single 21-inch fitment, so confirming the specific version of the car matters before selecting tires.
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2019 Bentley Mulsanne Base
The 2019 Bentley Mulsanne Base uses radial tires and can be found with either the 20-inch or 21-inch primary fitment. That makes wheel verification especially important, since the correct tire choice depends on the rim diameter actually installed on the car rather than on model name alone.
The 2019 Bentley Mulsanne Speed uses the 265/40R21 radial size. Tire selection is more straightforward here, with the focus shifting from size identification to confirming wheel condition, matching tire specifications properly, and choosing a tire suited to how the car is driven and maintained.
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.
Frequently Asked Questions
These FAQs focus on the exact tire sizes used on the 2019 Bentley Mulsanne, how Base and Speed fitment differs, and what to verify before replacing tires on a modern Bentley flagship sedan.
Tire Size & Fitment
What tire size fits a 2019 Bentley Mulsanne?
The 2019 Bentley Mulsanne uses two primary tire sizes: 265/40R21 and 265/45R20. Both are radial metric sizes. The Base model can use either size, while the Mulsanne Speed uses 265/40R21.
The key step is confirming the actual wheel diameter on the car before ordering tires. A Base model may be running either 20-inch or 21-inch wheels, and a previous owner may have changed wheels as well. Checking the sidewall of the existing tires and measuring the wheel size helps prevent ordering the right width and profile in the wrong rim diameter.
What size rim does a 2019 Bentley Mulsanne use?
A 2019 Bentley Mulsanne uses either a 20-inch rim or a 21-inch rim, depending on the tire size fitted to the car. The 265/45R20 tire fits a 20-inch wheel, and the 265/40R21 tire fits a 21-inch wheel.
Rim diameter should be verified before looking at any other tire details, because a 20-inch and 21-inch fitment are not interchangeable. The overall diameters of these two sizes are close, but that does not make the wheels themselves compatible. On a Base model especially, checking the wheel first keeps the fitment process straightforward and avoids confusion between the two accepted tire sizes.
Do all 2019 Bentley Mulsanne sub-models use the same tire size?
No. The 2019 Bentley Mulsanne Base can use either 265/40R21 or 265/45R20, while the 2019 Bentley Mulsanne Speed uses 265/40R21. That means not every covered sub-model shares the same tire size.
This matters most when the car is being serviced by model name alone. Saying "2019 Mulsanne" is not always enough to identify the correct tire. The safer approach is to confirm both the exact sub-model and the wheel diameter currently on the car. That is especially important on collector-owned luxury cars, where wheel changes or replacement sets may have been installed over time.
Choosing the Right Tire
What should I consider when choosing a 265/40R21 tire for a 2019 Bentley Mulsanne?
Start by confirming that the car actually uses the 265/40R21 size, since this fitment applies to the Mulsanne Speed and can also appear on the Base model. It is a metric radial for a 21-inch wheel, so correct diameter match is the first requirement.
After size is confirmed, compare the tire’s intended character with how the car is used. A low-use collector sedan may prioritize proper fitment, smooth operation, and visual consistency, while a regularly driven example may place more emphasis on fresh age and careful maintenance. Checking wheel condition, matching all four tires, and avoiding mixed diameters are all important on a large luxury car like the Mulsanne.
What should I consider when choosing a 265/45R20 tire for a 2019 Bentley Mulsanne?
The 265/45R20 size belongs to the 2019 Bentley Mulsanne Base and fits a 20-inch wheel. It shares the same nominal width as the 21-inch option, but it is still a different fitment because the rim diameter and profile are not the same.
The most useful check is whether the car still has its 20-inch wheel setup. Once that is confirmed, focus on selecting a properly matched set rather than comparing this size loosely to the 21-inch alternative. For a vehicle of this weight and refinement, maintaining even tire age, consistent inflation, and uniform fitment across the axle is just as important as choosing the correct size code.
How do I choose between the available tire sizes for a 2019 Bentley Mulsanne?
The choice is made by the car’s sub-model and wheel diameter, not by personal preference alone. A 2019 Bentley Mulsanne Base may use either 265/45R20 or 265/40R21, while a 2019 Bentley Mulsanne Speed uses 265/40R21.
The practical way to decide is to inspect the wheel and existing tire markings on the car in front of you. Since both approved sizes are close in overall diameter, it can be tempting to treat them as interchangeable, but the wheel itself determines which one belongs there. Matching the installed rim diameter first keeps fitment accurate and helps preserve the car’s intended proportions and road manners.
Restoration & Appearance
Does correct tire fitment matter for a 2019 Bentley Mulsanne restoration or preservation project?
Yes. Even though the 2019 Bentley Mulsanne is a modern luxury car, correct tire fitment still matters for preservation, presentation, and proper road use. The right tire size keeps the wheel-and-sidewall relationship appropriate to the car’s design and supports the intended fit on either 20-inch or 21-inch wheels.
A preservation-minded owner should begin with the exact size that matches the current wheel setup, then make sure the tires are consistent across the car. On a vehicle of this type, appearance and mechanical correctness work together. If exact historical configuration matters, it also helps to compare the car against build records, marque references, or earlier ownership documentation before making any wheel or tire changes.
How does tire profile affect the appearance of a 2019 Bentley Mulsanne?
The 2019 Bentley Mulsanne uses two modern metric radial profiles: 265/40R21 and 265/45R20. Although their overall diameters are very close, they create different visual relationships between the tire sidewall and wheel face because one is built around a 21-inch wheel and the other around a 20-inch wheel.
That difference can matter on a formal luxury sedan where proportions are part of the car’s character. A 21-inch fitment presents a larger wheel presence, while the 20-inch setup carries a slightly fuller sidewall look in format terms. The right approach is to match the tire to the wheel setup already on the car rather than chasing appearance with a size that belongs to a different rim diameter.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2019 Bentley Mulsanne?
Yes. Wheel changes, suspension alterations, or other aftermarket modifications can affect tire fitment on a 2019 Bentley Mulsanne. That is especially relevant here because the car may use either a 20-inch or 21-inch setup, and those sizes are tied directly to wheel diameter.
Any time a Mulsanne has non-original wheels, the tire decision should begin with measuring the installed rim and confirming clearance through steering and suspension travel. Even when two tire sizes have similar overall dimensions, changes in wheel design can alter how the tire sits in the wheelhouse. That makes a physical inspection more useful than relying on model name alone.
What should I inspect before driving a 2019 Bentley Mulsanne on new tires?
Before driving a 2019 Bentley Mulsanne on new tires, inspect the wheels for damage, confirm that all tires match the intended size for the car, and verify proper inflation. It also makes sense to check valve stems, tread seating, and overall tire condition after installation.
A careful road-use check should include looking for sidewall contact, unusual vibration, and any sign of air loss during the first miles. On a large luxury sedan, smoothness matters, so balancing and even mounting quality are important. After installation, rechecking pressure and giving the tires another visual inspection helps catch small issues before they become larger problems.
How often should tires on a 2019 Bentley Mulsanne be inspected?
Tires on a 2019 Bentley Mulsanne should be inspected regularly, not just when tread appears worn. A visual check for cracking, cuts, bulges, uneven wear, and low pressure is a sensible routine, especially on a vehicle that may spend long periods parked between drives.
Collector-owned luxury cars often age their tires by time and storage conditions as much as by mileage. Looking over the tires before longer trips and checking pressures more often during seasonal changes helps protect ride quality and fitment integrity. Paying attention to age, air retention, and any change in steering feel can reveal problems early, even when the tread still looks usable.
