The 2013 Bentley Mulsanne represents Bentley’s modern flagship tradition, blending formal luxury, substantial road presence, and long-distance touring character in a hand-finished sedan built for refinement rather than flash. Tire choice on this car matters because it sits on two distinct modern radial fitments, 265/45R20 and 265/40R21, each tied to a different wheel diameter while keeping a very similar overall tire diameter. That means the real decision starts with confirming which wheel package is on the car, then narrowing the choice around the correct 20-inch or 21-inch fitment. For a Mulsanne, proper sizing supports both appearance and the composed ride expected from the car.
Which Tire Size Is Right for The 2013 Bentley Mulsanne
The 2013 Bentley Mulsanne uses two primary tire sizes, and the difference begins with wheel diameter: 265/45R20 fits a 20-inch rim, while 265/40R21 fits a 21-inch rim. Since the Mulsanne Base can use either size, the first step is confirming the actual wheel package on the car before comparing tire choices within the correct radial fitment.
265/40R21 is a metric radial size in which 265 identifies the nominal section width in millimeters, 40 is the aspect ratio, R denotes radial construction, and 21 is the rim diameter in inches. On the 2013 Bentley Mulsanne, this size belongs to the 21-inch wheel setup and reflects a modern low-profile luxury fitment. The lower sidewall profile is part of what distinguishes it from the 20-inch alternative, even though the overall tire diameter stays very close. This is the size to evaluate only after confirming that the car is actually equipped with 21-inch wheels.
265/45R20 is a metric radial size with a 265-millimeter nominal section width, a 45-series aspect ratio, radial construction, and a 20-inch rim diameter. For the 2013 Bentley Mulsanne, this size matches the 20-inch wheel configuration and carries a slightly taller sidewall than the 21-inch alternative. Its overall diameter remains very close to the 265/40R21 setup, but that does not make the two sizes interchangeable without the matching wheel diameter. This fitment should be chosen when the car is on 20-inch wheels and the owner is selecting within that specific radial size.
Sub-model fitment is straightforward here, but wheel package still matters because the same Mulsanne trim can use either of two tire sizes. The key is not trim identification so much as confirming whether the car is on 20-inch or 21-inch wheels before selecting tires.
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2013 Bentley Mulsanne Base
The 2013 Bentley Mulsanne Base can use either 265/45R20 or 265/40R21, both in radial construction. Tire selection starts with verifying the wheel diameter on the car, then choosing the correct size for the intended balance of fitment, appearance, and road use.
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
Owners researching 2013 Bentley Mulsanne tires usually need to sort out the correct size first, then confirm wheel diameter, radial fitment, and maintenance concerns for a large modern luxury sedan that may see limited-use collector driving.
Tire Size & Fitment
What tire size fits a 2013 Bentley Mulsanne?
The 2013 Bentley Mulsanne uses two tire sizes: 265/45R20 and 265/40R21. Both are radial sizes, and both apply to the Mulsanne Base depending on which wheel package is on the car.
The important step is confirming the actual wheel diameter before buying tires. A 20-inch wheel requires 265/45R20, while a 21-inch wheel requires 265/40R21. Even though the two sizes have very similar overall diameters, they are matched to different rims and should be selected only after checking the wheels currently installed on the vehicle.
What size rim does a 2013 Bentley Mulsanne use?
A 2013 Bentley Mulsanne uses either a 20-inch or 21-inch rim, depending on the tire size fitted to the car. The 265/45R20 tire uses a 20-inch rim, and the 265/40R21 tire uses a 21-inch rim.
That makes rim confirmation the first fitment checkpoint. Reading the existing tire sidewall is usually the quickest way to verify it, but the wheel itself should also be checked if there is any doubt. This matters especially on cars that may have had wheel changes, since the Mulsanne can appear similar while using two different factory-type tire and wheel combinations.
Why does the 2013 Bentley Mulsanne have more than one tire size?
The 2013 Bentley Mulsanne has more than one tire size because it was fitted with more than one wheel diameter. The two sizes, 265/45R20 and 265/40R21, keep nearly the same overall diameter while pairing with different rims.
That means the choice is driven by the wheel setup already on the car rather than by general preference alone. A buyer should not treat the two sizes as interchangeable just because the section width is the same. Matching the tire to the installed 20-inch or 21-inch wheel is what preserves proper bead seating, fitment, and clearance.
Choosing the Right Tire
What should I consider when choosing a 265/45R20 or 265/40R21 tire for a 2013 Bentley Mulsanne?
Start with the exact size already matched to the car’s wheel diameter. On a 2013 Bentley Mulsanne, that means choosing 265/45R20 for a 20-inch wheel or 265/40R21 for a 21-inch wheel, with radial construction in either case.
After size is confirmed, compare the tire’s intended use, overall road character, and how the car is driven. A Mulsanne used for regular touring may call for different priorities than one driven occasionally and kept primarily as a collector luxury sedan. Wheel condition, alignment, and any previous changes to the vehicle should also be checked before final tire selection.
How do I choose between the available 265/45R20 and 265/40R21 tires for a 2013 Bentley Mulsanne?
The first step is not choosing between the two sizes as alternatives, but identifying which one belongs on the wheel package already fitted to the car. The 2013 Bentley Mulsanne uses 265/45R20 with a 20-inch rim and 265/40R21 with a 21-inch rim.
Once the correct size is established, compare tires within that one fitment rather than across both. Look at how the car is used, the condition of the wheels, and whether the suspension and alignment are in proper order. That approach avoids size confusion and keeps the decision focused on the tire that actually matches the Mulsanne’s current wheel setup.
Should I match all four tires on a 2013 Bentley Mulsanne to the same size?
Yes, the 2013 Bentley Mulsanne should have all four tires matched to the same designated size for the wheel package on the car. That means either 265/45R20 on four 20-inch wheels or 265/40R21 on four 21-inch wheels.
Mixing these two sizes on the same set of identical wheels would be incorrect because the rim diameters differ. On any Mulsanne, it is smart to confirm the full wheel set before replacement, especially if the car was purchased secondhand or has seen wheel changes. Uniform sizing helps maintain consistent fitment, handling balance, and overall presentation.
Restoration & Appearance
Does correct tire fitment matter for a 2013 Bentley Mulsanne restoration or preservation project?
Yes, correct tire fitment matters on a 2013 Bentley Mulsanne because the car uses two distinct modern radial sizes tied to different wheel diameters. Preserving the intended wheel-and-tire relationship helps maintain the Mulsanne’s proportion, stance, and the visual balance expected of a flagship Bentley sedan.
A preservation-minded owner should begin by confirming whether the car is on its 20-inch or 21-inch setup, then choose the matching size rather than trying to substitute across wheel diameters. When originality questions go beyond size alone, vehicle-specific records, marque references, and prior ownership history are the right places to verify how the individual car was configured.
How does tire size affect the appearance of a 2013 Bentley Mulsanne?
Tire size affects the appearance of a 2013 Bentley Mulsanne because 265/45R20 and 265/40R21 use different sidewall proportions with different wheel diameters. Even with very similar overall tire diameter, the 21-inch combination presents a shorter sidewall and a larger visible wheel face.
That visual difference is one reason the installed wheel package should be confirmed before replacement. On a car with the wrong size for its wheel, the look can appear off even before fitment concerns are considered. Keeping the tire matched to the intended 20-inch or 21-inch setup preserves the Mulsanne’s formal, composed visual character.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 Bentley Mulsanne?
Yes, modifications can affect tire fitment on a 2013 Bentley Mulsanne. Changes such as aftermarket wheels, altered suspension height, alignment adjustments, or body modifications can influence whether the original 265/45R20 or 265/40R21 size still has the intended clearance and wheel compatibility.
A Mulsanne that has been lowered or fitted with non-original wheels deserves a close inspection before tire replacement. Check wheel diameter first, then look at width, inner and outer clearance, and any signs of rubbing at full steering lock or suspension travel. That is especially important on a large, heavy luxury sedan where small setup differences can become noticeable.
What should I inspect before driving a 2013 Bentley Mulsanne on new tires?
Before driving a 2013 Bentley Mulsanne on new tires, inspect the wheels for damage, verify that the correct 20-inch or 21-inch size was installed, and confirm proper inflation. It is also wise to check alignment, valve stems, and the overall condition of suspension and steering components.
A short initial road test can reveal vibration, pulling, or unexpected clearance issues that were not obvious at installation. Since the Mulsanne may spend long periods parked, it also helps to look over the older tires that came off the car for uneven wear or age-related deterioration. Those clues can point to mechanical issues worth correcting before regular use.
How often should tires on a 2013 Bentley Mulsanne be inspected?
Tires on a 2013 Bentley Mulsanne should be inspected regularly, with extra attention if the car is driven infrequently. Pressure loss, tread wear, sidewall cracking, cuts, and bulges are all worth checking, even on a low-mile luxury sedan that appears to be in excellent condition.
A stored collector-oriented car can age its tires long before it wears them out, so visual checks before each drive are a good habit. Longer intervals between outings make it especially important to monitor air pressure and watch for flat spotting or weathering. Regular inspection helps catch problems early and supports safer, smoother road use.
