2018 Bentley represented the modern grand touring and luxury-sedan side of the marque, with the Continental and Flying Spur carrying Bentley’s high-speed performance image while the Mulsanne remained the flagship in traditional hand-built luxury. Tire choice across 2018 Bentley models is worth sorting out carefully because the range uses five distinct sizes, and they are not shared across every model. Continental and Flying Spur overlap on two sizes, Flying Spur adds its own 19-inch fitment, and Mulsanne uses its own 20- and 21-inch sizes. The first step is confirming your exact model and wheel diameter, since that determines which size family belongs on your car before you compare brands or product style.
Which Tire Size Is Right for Your 2018 Bentley
Five tire sizes are used across 2018 Bentley models, and they vary by model rather than being universal across the full range. Because these sizes span 19-, 20-, and 21-inch wheel diameters, the real decision starts with confirming the correct wheel diameter for your specific Continental, Flying Spur, or Mulsanne before narrowing down the right tire. Understanding that distinction first saves time and helps ensure the right match.
The 275/35R21 is a radial metric size with a 275-millimeter section width, a 35-series aspect ratio, and a 21-inch rim diameter. This size is shared by the Continental and Flying Spur, but no product range is shown here for brand, sidewall, tube, or speed-rating comparison. It suits owners who need the 21-inch fitment used on those models rather than a year-wide Bentley size. Confirm the exact wheel diameter on the car before moving to a product choice.
Year(s): 2018|Fit(s): Continental, Flying Spur|Construction: Radial|Rim: 20 in
The 275/40R20 is a radial metric size with a 275-millimeter section width, a 40-series aspect ratio, and a 20-inch rim diameter. It is available from M&H Racemaster, BFGoodrich, and Nitto in blackwall form, and speed ratings vary by product, including W-rated options to 168 mph and Y-rated options to 186 mph; one M&H version is a drag-race radial rather than a conventional street-oriented touring fitment. This size is specific to Continental and Flying Spur applications rather than the full 2018 Bentley range. Buyers should decide whether they want a street-performance radial or a specialty drag radial before selecting within this size.
The 275/45R19 is a radial metric size with a 275-millimeter section width, a 45-series aspect ratio, and a 19-inch rim diameter. This fitment is specific to the Flying Spur and does not overlap with Continental or Mulsanne applications here. It is the choice for Flying Spur owners running the 19-inch wheel package rather than the shared 20- or 21-inch alternatives seen elsewhere in the year. Verify the car’s wheel diameter before comparing tires, since the 19-inch size is model-specific.
The 265/40R21 is a radial metric size with a 265-millimeter section width, a 40-series aspect ratio, and a 21-inch rim diameter. This size belongs to the Mulsanne only, separating Bentley’s flagship sedan from Continental and Flying Spur fitments even where wheel diameter is also 21 inches. It is the correct path for Mulsanne owners on 21-inch wheels, not a substitute for the 275-section sizes used on other 2018 Bentley models. Confirm the exact Mulsanne wheel setup before choosing a product.
The 265/45R20 is a radial metric size with a 265-millimeter section width, a 45-series aspect ratio, and a 20-inch rim diameter. This fitment is exclusive to the Mulsanne and is separate from the 275/40R20 size used on Continental and Flying Spur. It is the appropriate size for Mulsanne owners with the 20-inch wheel package, reflecting that model’s own tire family within the 2018 Bentley range. Check the wheel diameter on the car before moving forward, since two Bentley models also use 20-inch wheels with a different size.
Three Bentley model lines are covered for 2018. Tire size varies by model, with Continental and Flying Spur sharing two fitments while Flying Spur adds its own 19-inch option and Mulsanne uses a separate pair of sizes. Select your model below to narrow the fitment history and see which tire sizes apply to your particular Bentley.
2018 Bentley Continental
The 2018 Bentley Continental carried the marque’s grand touring identity, blending high-speed road manners with the substantial character expected from a modern Bentley coupe or convertible. Its tires mount on 20-inch or 21-inch wheels, so the key is matching the car’s exact wheel package before choosing among available radials.
The 2018 Bentley Flying Spur translated Bentley performance into a four-door luxury sedan, with a more sporting character than the larger Mulsanne while retaining a formal Bentley presence. Flying Spur fitments span 19-, 20-, and 21-inch wheels, making model and wheel-package confirmation especially important before settling on a tire size.
The 2018 Bentley Mulsanne stood as the flagship sedan, emphasizing traditional Bentley craftsmanship, presence, and long-wheelbase luxury rather than the more overtly sporting role of the Continental family. Its tires mount on 20-inch or 21-inch wheels, and both sizes are unique to the Mulsanne within the 2018 Bentley range.
Four products are available across five tire sizes for 2018 Bentley vehicles. The 275/40R20 has four radial choices from M&H Racemaster, BFGoodrich, and Nitto, all in blackwall style. Confirm your exact size first, since product type and speed rating vary within that 20-inch fitment.
These FAQs cover how 2018 Bentley tire sizes differ between Continental, Flying Spur, and Mulsanne models, what the metric size codes mean, how available 275/40R20 products compare, and what to check before regular road use or long-term storage.
Size Basics & Fitment
What tire sizes fit 2018 Bentley vehicles?
2018 Bentley vehicles use five sizes across three model lines: 275/35R21 and 275/40R20 for the Continental; 275/35R21, 275/40R20, and 275/45R19 for the Flying Spur; and 265/40R21 plus 265/45R20 for the Mulsanne. All five are radial sizes. The wheel diameters involved are 19, 20, and 21 inches, so there is no single Bentley-wide fitment for the year.
That means year and make alone are not enough to choose a tire for a 2018 Bentley. Start by identifying the exact model, then confirm the wheel diameter actually on the car, since some models were offered with more than one wheel package. Once that is settled, you can compare brands, sidewall appearance, and speed rating within the correct size rather than trying to cross between different diameters.
What does 275/40R20 mean on a 2018 Bentley tire?
On a 2018 Bentley tire, 275/40R20 is a metric radial size. The 275 is the nominal section width in millimeters, 40 is the aspect ratio, meaning the sidewall height is 40 percent of the section width, R indicates radial construction, and 20 is the wheel diameter in inches. Within 2018 Bentley applications, this size fits Continental and Flying Spur models equipped with 20-inch wheels.
That code matters because a 275/40R20 is not interchangeable with the 21-inch or 19-inch Bentley sizes unless the entire wheel setup changes with proper clearance and fitment checks. It is also the one size here with multiple product choices, including different speed ratings and one drag-radial application. Confirm the tire currently on the car and the wheel diameter stamped on the wheel before matching a replacement.
Do all 2018 Bentley models use the same tire size?
No, 2018 Bentley models do not all use the same tire size. The Continental and Flying Spur share 275/35R21 and 275/40R20, but the Flying Spur also uses 275/45R19. The Mulsanne uses its own pair of sizes, 265/40R21 and 265/45R20, which separate it from the other two model lines even when the wheel diameter is similar.
That split is important because a 21-inch Bentley tire is not automatically correct just because another 2018 Bentley also uses a 21-inch wheel. Section width and aspect ratio still have to match the model’s intended fitment. If you are shopping from memory or from a wheel-diameter note alone, verify the exact model and read the full size off the sidewall before making a final selection.
Buying the Right Tire
What sidewall styles are available for 2018 Bentley tires?
For 2018 Bentley applications covered here, the available 275/40R20 products use blackwall sidewalls. That appearance suits the modern Bentley character well, since the Continental, Flying Spur, and Mulsanne were contemporary luxury-performance cars rather than whitewall-era classics. No alternate sidewall treatment appears in the available 275/40R20 product group.
If sidewall appearance matters to you, match the tire to the personality of the car and wheel package rather than assuming every Bentley benefits from a more ornate look. A clean blackwall presentation is generally consistent with late-model European luxury styling. Once the correct size is confirmed, sidewall style becomes more about preserving the intended modern look than chasing a restoration-era visual cue.
What brands make tires for 2018 Bentley vehicles?
Three brands appear in the 2018 Bentley product range shown here: M&H Racemaster, BFGoodrich, and Nitto. All of them are tied to the 275/40R20 size, which fits certain Continental and Flying Spur applications. BFGoodrich appears with both g-Force Sport COMP-2 and g-Force COMP-2 A/S variants, Nitto appears with the NT555 G2, and M&H Racemaster appears with a radial drag rear application.
Brand choice for a 2018 Bentley comes after size confirmation, not before it. A Continental or Flying Spur on 20-inch wheels has room for a genuine brand comparison, while the other Bentley sizes here call for model-specific follow-through first. If you are choosing among the 275/40R20 options, compare the intended use of the tire as closely as the brand name, since the group includes both street-oriented and specialty-use products.
What is the difference between BFGoodrich and Nitto 275/40R20 tires for 2018 Bentley vehicles?
Within the 275/40R20 fitment for 2018 Bentley vehicles, BFGoodrich and Nitto both offer radial blackwall tires, but their published details differ. BFGoodrich appears with a 106W version rated to 168 mph and a 106Y version rated to 186 mph, with rim-width ranges of 9.00 to 9.50 inches and 9.0 to 11.0 inches respectively. Nitto’s NT555 G2 is also a blackwall radial in 275/40ZR20XL 106W form.
The practical takeaway is that even within one Bentley size, two street-performance radials can target slightly different wheel widths and speed-rating envelopes. If your car is a Continental or Flying Spur on 20-inch wheels, match the tire not only to the size but also to the wheel width and intended driving pattern. That keeps the comparison focused on real fitment and use rather than choosing by name alone.
Fitting & Setup
What rim width do 2018 Bentley tires require?
Published rim-width guidance appears for some 2018 Bentley 275/40R20 tires. BFGoodrich’s 275/40ZR20 106W fits 9.00 to 9.50-inch rims, BFGoodrich’s 275/40ZR20 106Y fits 9.0 to 11.0-inch rims, and M&H Racemaster’s 275/40R20 radial drag rear is paired with a 9-inch rim. All of those products use a 20-inch rim diameter because they are 275/40R20 tires.
Rim width matters because two tires with the same overall size code can still have different approved wheel-width windows. Before choosing a 275/40R20 for a Continental or Flying Spur, verify the actual wheel width rather than assuming every 20-inch Bentley wheel is the same. That step becomes especially important when comparing a drag-oriented product with more conventional street radials.
Do 2018 Bentley tires require inner tubes?
The 2018 Bentley sizes here are modern radial fitments, and the available 275/40R20 products do not carry a tube-type marking in their size descriptions. That points to tubeless use for those products rather than an inner-tube setup. The year and vehicle category also align with modern tubeless wheel-and-tire practice rather than vintage tube-type construction.
Even so, the right approach is to confirm the wheel condition and the exact sidewall marking on the tire you choose, especially on a car with replacement or refinished wheels. Tubeless tires still depend on a sound bead seat and a healthy valve stem to hold pressure properly. If the wheel has been modified or if you are unsure about its condition, a Bentley specialist or experienced tire installer can help verify the setup.
Can the original 2018 Bentley wheels be used with all tire sizes?
Original 2018 Bentley wheels cannot be treated as universal across all five sizes because the year uses three different diameters: 19, 20, and 21 inches. A 275/45R19 requires a 19-inch wheel, a 275/40R20 or 265/45R20 requires a 20-inch wheel, and a 275/35R21 or 265/40R21 requires a 21-inch wheel. The Continental, Flying Spur, and Mulsanne also do not all share the same section width and profile.
If your Bentley still has its original wheel package, replacement tire selection should follow that wheel diameter exactly. If the car has been changed from its original wheel package, confirm wheel width and clearance before crossing into another Bentley size family. Matching only the wheel diameter without checking the complete size can create problems with appearance, handling balance, and body or suspension clearance.
Maintenance, Storage & Longevity
How should I store a 2018 Bentley when the tires are fitted?
A 2018 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-producing equipment. Modern radials resist flat-spotting better than older bias-ply tires, but long periods of static storage can still stress the carcass and promote sidewall aging if pressures are neglected. Moisture and temperature swings are just as important to control as mileage.
Move the car periodically or support it correctly if it will sit for an extended season, especially on heavy luxury models such as the Flying Spur and Mulsanne. Keeping the tires off damp concrete and checking pressure during storage helps preserve both shape and appearance. A fitted car cover and a stable indoor environment do more for tire longevity than occasional short starts without actually driving the car.
How long do tires on a 2018 Bentley typically last?
Tires on a 2018 Bentley should be judged by age as much as by tread depth. A sensible collector and enthusiast guideline is to begin serious evaluation around five to seven years and to treat roughly ten years as a point where replacement deserves strong consideration, even if the tires still look usable. The DOT date code on the sidewall is the most reliable way to identify tire age.
That matters because many Bentleys accumulate low annual mileage, which can leave a tire looking healthy while the rubber compound and internal structure are aging. High-speed luxury cars also place significant demands on their tires when they are driven. If a tire is older, shows cracking, or has an uncertain history, replacement is usually wiser than trying to stretch time simply because the tread remains deep.
How often should tires on a 2018 Bentley be inspected?
Tires on a 2018 Bentley deserve a quick inspection before every drive and a more thorough check before any extended outing. Look for sidewall cracking, cuts, bulges, uneven wear, punctures, and pressure loss. On modern Bentley applications, also pay close attention to valve-stem condition and any signs that a low-profile tire has been pinched or damaged by potholes or curb contact.
A regular inspection routine matters because performance-oriented, low-profile tires can suffer damage that is easy to miss until vibration or air loss appears. Check the inside sidewall when possible, not just the outer face. If the car has been stored, inspect before the first drive of the season rather than assuming the tires are ready simply because the tread still looks presentable.
Safety & Road Use
Are 2018 Bentley tires safe for highway driving?
2018 Bentley tires in these fitments are modern radial designs, and the available 275/40R20 street-oriented products include W and Y speed ratings. W corresponds to 168 mph, and Y corresponds to 186 mph. Those figures are well beyond normal U.S. highway speeds, although one 275/40R20 option is a drag-race radial and should be evaluated according to its intended use rather than treated like a conventional everyday road tire.
In real use, the car’s maintenance condition, alignment, brake health, and suspension condition are just as important as the tire’s speed symbol. A Continental, Flying Spur, or Mulsanne that is properly maintained and fitted with the correct size from an appropriate street-oriented product category can be entirely suitable for highway touring. The key is choosing the right type of tire for how the car will actually be driven.
What inflation pressure should I use for 2018 Bentley tires?
Inflation pressure for a 2018 Bentley should follow the vehicle placard or owner’s manual first, because factory pressure targets are set around the car’s weight distribution and intended load. Within the available 275/40R20 products, one BFGoodrich option carries a maximum load of 2,094 pounds at 50 psi. That figure is the tire’s rated maximum, not a universal Bentley operating pressure for every model or size.
Use the Bentley-recommended cold inflation pressure for routine driving, then compare it with the tire maker’s guidance for the exact product you choose. Do not transfer a pressure figure from a 20-inch Continental or Flying Spur fitment to a 19-inch Flying Spur or a Mulsanne size. The right pressure supports ride quality, wear pattern, and safe load carrying, especially on a heavy luxury-performance car.
What should I check before taking a 2018 Bentley on a longer drive?
Before a longer drive in a 2018 Bentley, inspect each tire for cracking, punctures, bulges, curb damage, and uneven tread wear, then verify cold pressures and confirm the spare is serviceable if the car carries one. Pay close attention to low-profile sidewalls, which can hide impact damage after pothole or road-edge contact. The valve stems should also be checked for age and leakage.
A long-trip check should also include the broader mechanical basics that matter on any high-performance luxury car: brakes, fluids, battery condition, and suspension health. Tires are only one part of that equation, but they are the part in constant contact with the road. If the car has been sitting or if the tires are several years old, give them extra scrutiny before committing to sustained highway speeds.
