2017 Rolls-Royce Tire Fitment Guide

2017 Rolls-Royce vehicles use seven sizes across four models: 255/40R21, 255/45R20, 285/35R21, 285/40R20, 255/50R19, 255/50R21, and 285/45R21. Dawn uses 255/45R20, 285/40R20, 255/40R21, and 285/35R21. Ghost uses those four shared sizes plus 255/50R19. Phantom uses 255/50R21 and 285/45R21, while Wraith uses the same four shared 20-inch and 21-inch sizes as Dawn.

That means year and make alone are not enough for a correct replacement. Ghost owners need to separate 19-inch fitment from 20-inch and 21-inch packages, and Phantom owners need to stay within the two Phantom-specific 21-inch sizes. On the one size with product detail here, 255/45R20 fits 20-inch wheels with an 8.0 to 9.5-inch rim width range, which is a useful reference point when checking an existing wheel setup.

On a 2017 Rolls-Royce, 255/45R20 means the tire is 255 millimeters wide, has a 45-series aspect ratio, uses radial construction, and mounts on a 20-inch wheel. That size appears on Dawn, Ghost, and Wraith. Available 255/45R20 products include W-rated options, which carry a 168 mph speed ceiling, and they come in both blackwall and RWL sidewall styles.

For a buyer, the important point is that this code describes both the tire’s dimensions and the wheel diameter it must fit. You cannot substitute it for a 21-inch size just because the vehicle is another 2017 Rolls-Royce model with a similar stance. Once the 20-inch wheel package is confirmed, the next decisions are sidewall appearance, brand preference, and whether the product’s load and speed specification matches how the car will be used.

No. Dawn and Wraith share the same four sizes, and many Ghost applications overlap with those same 20-inch and 21-inch fitments, but Ghost also uses a 255/50R19 size that the others do not. Phantom stands apart with its own 255/50R21 and 285/45R21 combination. The result is a model range with some overlap, but not one universal 2017 Rolls-Royce size.

That matters most when the car is being replaced from memory rather than from the tire sidewall. A Ghost can easily be mistaken for one of the shared 20-inch or 21-inch applications when it is actually wearing 19-inch wheels, and a Phantom owner should not assume overlap with Dawn or Wraith just because all are 2017 Rolls-Royce vehicles. The safest approach is to confirm the exact model and read the tire size already mounted on the wheel.

For the 2017 Rolls-Royce 255/45R20 size, sidewall styles include blackwall and RWL. BFGoodrich and Nitto offer blackwall versions, while Pro-Trac offers an RWL version. All of those products are radial tires, so the appearance choice here is about sidewall presentation rather than a change from bias-ply to radial construction.

Blackwall is generally the more formal and understated look on late-model luxury cars, which often suits the character of Dawn, Ghost, Phantom, and Wraith. RWL brings a more overt performance-oriented appearance that can change the visual tone of the car, especially on coupe or grand touring applications. Owners trying to preserve a factory-style look should compare the replacement to the sidewall treatment already on the car before making a final choice.

For the 2017 Rolls-Royce 255/45R20 fitment, available brands include BFGoodrich, Nitto, and Pro-Trac. BFGoodrich appears in both g-Force Comp 2 AS and g-Force Sport Comp 2 form, Nitto offers the NT555 G2, and Pro-Trac offers the Street Pro III. All are radial tires sized for the shared Dawn, Ghost, and Wraith 20-inch application.

Brand choice on a modern Rolls-Royce usually comes down to the kind of look and driving character you want to emphasize within the correct size. Some owners prefer a more understated blackwall from a mainstream performance-oriented brand, while others want the visual statement of an RWL tire. Once the size is confirmed, compare sidewall style, speed rating, and any load marking differences before choosing between brands.

In 255/45R20 for a 2017 Rolls-Royce, BFGoodrich offers g-Force Comp 2 AS and g-Force Sport Comp 2 versions, while Nitto offers the NT555 G2. All three are radial blackwall tires with W speed ratings, and the BFGoodrich products specify an 8.0 to 9.5-inch rim width range. Weight is very close, with BFGoodrich at 32 pounds and Nitto at 31.97 pounds, while one BFGoodrich option also carries a 1,819-pound maximum load at 51 psi.

Those similarities mean the decision is less about dramatic dimensional differences and more about the exact product character and wheel setup you are working with. If your wheel falls within the stated BFGoodrich rim-width range, that can help narrow the field. If you are comparing products for a shared Dawn, Ghost, or Wraith fitment, look at sidewall appearance, speed marking, and any stated load figure rather than assuming every 255/45R20 is interchangeable in every detail.

Rim width guidance appears here for the 2017 Rolls-Royce 255/45R20 size, where BFGoodrich specifies an 8.0 to 9.5-inch wheel width range. That size fits Dawn, Ghost, and Wraith when they are equipped with the shared 20-inch package. Other 2017 Rolls-Royce sizes in this range use different wheel diameters and may have their own wheel-width requirements depending on the exact product selected.

Rim width matters because the same nominal tire size can behave differently if mounted on a wheel that is too narrow or too wide. Before replacing a tire, verify the wheel diameter and measure or confirm the wheel width already on the car. That is especially important on staggered luxury applications, where front and rear tires may differ even when the overall vehicle looks symmetrical at a glance.

The 2017 Rolls-Royce tires covered here are radial metric sizes, and the 255/45R20 products shown do not carry tube-type markings. That points to a modern tubeless-style application rather than an inner-tube setup typical of much older collector vehicles. On a late-model Rolls-Royce, the wheel and tire system is generally built around tubeless radial use.

Even so, it is wise to confirm the exact sidewall marking on the replacement tire and inspect the wheel condition before installation. A damaged bead seat, prior repair, or nonstandard wheel can create sealing problems even when the tire itself is intended for tubeless service. For a 2017 Rolls-Royce, the practical check is less about tube compatibility and more about making sure the wheel package and tire size match exactly.

Original 2017 Rolls-Royce wheels can only be used with the tire sizes that match their wheel diameter and intended application. A 20-inch wheel accepts 255/45R20 or 285/40R20 depending on position, a 21-inch wheel accepts the appropriate 21-inch fitments, and Ghost also has a 19-inch application that stays within that wheel diameter. The original wheel from one setup is not automatically compatible with every other 2017 Rolls-Royce size.

That is why wheel diameter should be confirmed before any size comparison begins. A Dawn, Ghost, or Wraith may share a 20-inch or 21-inch family of sizes, but the presence of staggered front and rear dimensions means position on the car matters too. When moving between products, keep the existing wheel diameter and confirm that the wheel width is appropriate for the exact size you plan to run.

A 2017 Rolls-Royce should be stored in a cool, dry, dark space away from direct sunlight, electric motors, welders, battery chargers, and other ozone-producing equipment that can age rubber prematurely. Keep the tires properly inflated during storage and make sure the car is parked on a clean surface rather than bare soil or standing moisture. Radial tires resist flat-spotting better than older bias-ply designs, but long static periods can still leave temporary deformation.

For a car that sits for weeks or months, periodic movement helps distribute load and reduce stress in one contact patch area. If the vehicle will remain parked for an extended season, some owners use tire cradles or stands as part of a broader preservation routine. The goal is to protect both the tire casing and the appearance of a luxury wheel-and-tire package that is expensive to replace and easy to age cosmetically.

On a 2017 Rolls-Royce, tire age matters at least as much as mileage. A good collector-car rule is to begin careful evaluation around five to seven years from the date code and to treat around ten years as a point where replacement deserves serious consideration, even if tread depth still looks acceptable. Heat cycles, climate, storage conditions, and inflation history often determine service life more than annual miles.

That is especially true for luxury cars that may be driven selectively and spend long periods parked. A low-mileage tire can still be too old if the rubber has hardened, cracked, or lost flexibility. Checking the DOT date code and comparing it with the tire’s current condition gives a better answer than tread depth alone, and it helps prevent the false confidence that often comes with a vehicle that appears lightly used.

Tires on a 2017 Rolls-Royce should be inspected before every drive and again before any extended trip. Look for sidewall cracking, bulges, cuts, punctures, uneven tread wear, and any sign that pressure is dropping between outings. Because these cars often use staggered high-performance sizes, each tire should be checked individually rather than assuming all four will age or wear in the same way.

A quick pre-drive inspection is often enough to catch the problems that matter most on a low-use luxury car. Follow that with regular pressure checks when the tires are cold and a closer visual inspection anytime the car has been sitting for a long period. If one tire shows a new vibration, wear pattern, or chronic pressure loss, address it early instead of waiting for the next major service interval.

A 2017 Rolls-Royce Dawn was originally a modern radial-tire car, not a bias-ply or vintage-style application. Within the 2017 Rolls-Royce range, Dawn uses 20-inch or 21-inch radial fitments shared with Wraith and many Ghost applications: 255/45R20 and 285/40R20, or 255/40R21 and 285/35R21. That means originality for a Dawn begins with the correct size family and wheel diameter, not with an older construction style.

If authenticity matters, confirm the exact wheel package already on the car and compare it to the sidewall size markings before replacing anything. A Dawn restored to factory appearance should also keep an eye on sidewall presentation, since a blackwall look is usually more in keeping with the formal tone of a late-model Rolls-Royce than a more aggressive visual treatment. For market-specific or option-specific confirmation, a Rolls-Royce marque specialist remains the best final reference.

Yes, correct tire fitment matters on a 2017 Rolls-Royce shown in preservation, concours, or marque-focused settings. Judges and knowledgeable enthusiasts will notice if the car is wearing the wrong wheel diameter, an incorrect front-to-rear size relationship, or a sidewall style that clashes with the car’s original character. On a late-model luxury car, authenticity is usually judged through proper sizing, appropriate modern radial construction, and an appearance that suits the original delivery style.

That does not always mean one exact replacement product is mandatory, but it does mean visible departures can affect how finished the car looks. A shared Dawn, Ghost, or Wraith size may still be wrong if the car’s wheel package differs, and a Phantom should retain its own 21-inch-specific size relationship. Owners preparing for judged events should verify the tire size on the current sidewall and check event standards if sidewall appearance is likely to be scrutinized.

For a 2017 Rolls-Royce in 255/45R20, BFGoodrich and Pro-Trac differ most clearly in sidewall presentation. BFGoodrich offers blackwall radial products in this size, while Pro-Trac offers a Street Pro III radial with an RWL sidewall. BFGoodrich also publishes an 8.0 to 9.5-inch rim-width range for its 255/45R20 products, and its weight is essentially the same as the Pro-Trac tire at about 32 pounds.

That makes this a visual and application-based decision more than a basic fitment one, provided the wheel package is correct. A blackwall tire generally preserves the restrained, formal look many owners want on a modern Rolls-Royce, while an RWL tire introduces a more assertive styling cue. If the car is being prepared for a highly original appearance, compare the replacement tire’s sidewall treatment to the car’s existing presentation before making the final choice.

Yes, 2017 Rolls-Royce tires in these fitments are modern radial highway tires when they are in good condition, properly inflated, and matched to the correct wheel package. In the 255/45R20 size, available products include W-rated tires, which carry a 168 mph speed ceiling. That is far beyond normal U.S. highway use, so condition, age, inflation, and alignment are usually more important than the raw speed rating for everyday driving.

The more meaningful safety question is whether the tire is the correct size for the car and whether the rest of the vehicle is ready for sustained road use. A luxury car with old rubber, low pressure, or uneven wear can feel unsettled long before it reaches any speed-rating limit. Check age, pressure, and visible condition first, then make sure the size on the car matches the wheel diameter and front-or-rear position intended by the original setup.

Inflation pressure on a 2017 Rolls-Royce should follow the factory vehicle placard or owner’s manual first, because pressure is tied to the exact model, wheel package, and front-or-rear position. One 255/45R20 BFGoodrich product in this range carries a maximum load of 1,819 pounds at 51 psi, but that figure is the tire’s rated maximum, not a universal operating pressure for every 2017 Rolls-Royce application. Different sizes should not borrow pressure figures from one another.

The practical approach is to use the carmaker’s recommended cold inflation pressure as your baseline and then confirm that the replacement tire’s load and pressure capacity is appropriate for the application. That avoids the common mistake of inflating to a sidewall maximum when the vehicle may require something different for ride quality, wear, and handling balance. Recheck pressures regularly, especially if the car spends long periods parked between drives.

Before a longer drive in a 2017 Rolls-Royce, inspect each tire for cracking, cuts, punctures, bulges, and uneven wear, then confirm cold inflation pressure and make sure the spare is serviceable if the car carries one. Read the sidewall to verify that the car is still wearing the correct size at each position, especially on staggered front-and-rear setups such as the shared 20-inch and 21-inch Dawn, Ghost, and Wraith applications. A final walkaround should include valve stems and wheel condition.

Tire inspection is only one part of a proper pre-trip routine on a luxury car of this type. Brakes, suspension behavior, battery condition, and fluid levels all matter, but the tires are the only part of the car in direct contact with the road. Catching a pressure loss or aged sidewall before departure is far easier than sorting it out after the car is loaded and committed to a longer highway run.