Buick Riviera Tires

Buick Riviera uses 710-15 for 1963-1964, 760-15 for 1964-1966, 8.45-15 for 1965-1968, H70-15 for 1967 and 1969-1973, 855-15 for 1969, H78-15 for 1970-1973, HR70-15 for 1973, J78-15 for 1974, JR78-15 for 1974-1976, GR70-15 for 1977 and 1979-1982, GR78-15 for 1977-1978, HR78-15 for 1978, 205/75R15 for 1979-1982 and 1984-1985, 225/70R15 for 1983-1985, 205/75R14 for 1986-1988, 215/60R15 for 1986-1987, 215/65R15 for 1988-1993, 205/70R15 for 1989-1993, and 225/60R16 for 1995-1999. The rim diameters used across those sizes are 15 inches for most years, 14 inches for 205/75R14, and 16 inches for 225/60R16.

The practical step is to match the car by exact year first, then verify whether it falls into an overlap year where more than one size appears. Several Buick Riviera years list two sizes, and 1973 lists three, so the wheel diameter and the construction type on the car matter just as much as the model name. If the wheels have been changed at any point in the car’s life, use the actual rim diameter and compare it against the year listing before narrowing the choice by sidewall style.

On Buick Riviera, 710-15 is a numeric bias-ply size used for 1963 and 1964. The 710 portion is the nominal section width with the decimal omitted, which corresponds to about 7.10 inches, and the 15 is the rim diameter in inches. It is an older American sizing system that predates modern metric radial markings and also predates the later alphanumeric sizes used on other Riviera years.

That size should be chosen only for an early Buick Riviera that falls within those years and still carries the corresponding 15-inch wheel fitment. Numeric bias-ply tires also bring an earlier driving feel and a more period-correct stance than later radial sizes. Because the available 710-15 products are bias-ply designs, treat tube installation as part of the fitment plan and confirm that the wheel condition, rim width, and overall restoration goals match that earlier specification.

The 1973 Buick Riviera is one of the transition years in the range, and it carries H78-15, HR70-15, and H70-15. All three sizes use 15-inch rims, but they are not the same construction type. H78-15 and H70-15 are bias-ply alphanumeric sizes, while HR70-15 is an alphanumeric radial size, so the split is tied to construction and profile rather than a wheel-diameter change.

That means a 1973 Buick Riviera owner should identify more than just the model year before choosing a tire. Check the tire type the car is intended to run, look at the wheel itself, and decide whether the car is being restored to a period bias-ply appearance or set up around a radial specification. Matching the construction across the full set is important, because the listed alternatives are not interchangeable simply by year alone.

Buick Riviera uses more than one rim diameter across its production run. Most early and mid-period sizes in the range are 15-inch fitments, 205/75R14 introduces a 14-inch fitment for 1986-1988, and 225/60R16 introduces a 16-inch fitment for 1995-1999. The first change away from the earlier 15-inch pattern appears in 1986, when both 14-inch and 15-inch Riviera fitments are present in the same model-year range.

The safest way to sort a Buick Riviera by wheel size is to check the actual rim diameter stamped on the wheel or measure the wheel bead seat rather than relying on appearance alone. This is especially important for 1986 through 1988, where 14-inch and 15-inch sizes overlap, and for any car that may have had wheel swaps during its life. Once the wheel diameter is confirmed, the year listing will narrow the correct size family very quickly.

A 1986 Buick Riviera can use either 205/75R14 or 215/60R15, so the year alone is not enough. Those two sizes are built for different rim diameters and different profiles: 205/75R14 fits a 14-inch wheel, while 215/60R15 fits a 15-inch wheel. Both are radial sizes, but they do not interchange without the matching wheel diameter.

Start by checking the actual wheel diameter on the car, then compare the tire’s current size marking if the existing set is known to be correct. After that, choose the sidewall style and tire series that suit the car’s intended look, whether that means a conservative whitewall appearance or a more performance-oriented blackwall or redline presentation. The key point for a 1986 Buick Riviera is that wheel diameter must be confirmed before anything else.

Buick Riviera tires are offered in a wide range of sidewall styles across the listed sizes. Available styles include blackwall, narrow whitewall, wide whitewall, dual-white-stripe, pin-white-stripe, redline, goldline, RWL, OWL, and raised yellow letter. The exact style choices depend heavily on the year and size, with earlier bias-ply Riviera fitments leaning toward blackwall and whitewall treatments and later radial sizes adding stripe and lettered performance looks.

Sidewall choice changes the personality of a Buick Riviera more than many buyers expect. A wide whitewall supports an early luxury or formal restoration look, while pin stripes, redlines, and raised white letters fit later personal-luxury or sport-themed presentations more naturally. If authenticity matters, choose the size first, then narrow the sidewall style to one that looks appropriate for the Riviera’s specific production era rather than picking purely by appearance.

Buick Riviera tire options in the listed range come from BFGoodrich, Firestone, Universal Vintage Tire, US Royal, Goodyear, Coker Classic, STA, Tornel, American Classic, Maxxis, Travelstar, Cooper, Michelin, Dunlop, Avon, and Vredestein. Some brands appear mainly in early bias-ply sizes, while others are concentrated in later radial metric fitments. Brand availability also varies by sidewall treatment, so one size may offer several appearance choices while another is more limited.

The practical way to compare Buick Riviera brands is to start with the correct size and construction, then see which manufacturers offer the visual style and tread character that fit the project. An early 1960s Riviera owner will be choosing among traditional bias-ply makers and classic whitewall patterns, while a later Riviera owner may be comparing touring-style radials, performance-themed lettered tires, or reproduction redlines. Brand matters, but correct size and era-appropriate appearance come first.

Buick Riviera fitments are supported by a broad mix of tire series, including Silvertown Classic Bias Ply, Firestone Classic Bias Ply, Coker Classic Bias Ply, Universal Classic Bias Ply, Super Cushion, Super Cushion Deluxe, Silvertown Radial, Coker Classic Radial, American Classic Radial, Star Series, GM Custom Tread, Steelgard, Polysteel, Cobra Radial G/T, Michelin XWX, Sport Classic, CR6ZZ, Eagle GT, Radial T/A, Classic Whitewall MA-1, UN106, and Eagle NASCAR. Those series span traditional bias-ply construction, radial construction, and a few bias-look radial designs intended to blend vintage appearance with more modern casing technology.

That variety means Buick Riviera owners can tune the car toward authenticity, period styling, or later-road-use practicality depending on year and wheel size. An early Riviera often points naturally toward classic bias-ply series, while a later car may be better served by a true radial or a reproduction performance radial with period sidewall graphics. Once the correct size is established, the series name helps you understand whether the tire is aimed at restoration appearance, luxury cruising, or a more sporting character.

A stored Buick Riviera should be kept in a cool, dry, dark garage with the tires clean and away from direct sunlight, electric motors, welders, or ozone-producing equipment. Inflate the tires to an appropriate holding pressure for storage, keep the car on a clean surface, and move it periodically so one section of the casing does not carry the load for months at a time. Long static storage is especially hard on older-style collector tires and whitewall surfaces.

If the Buick Riviera will sit for a season or longer, many owners use tire cradles or lift some weight off the tires to reduce flat-spotting and sidewall stress. Keep solvents, dressings, and petroleum products away from the rubber, and clean whitewalls gently to avoid staining or abrasion. Storage habits do not change the tire’s age, but they do have a major effect on how well the set retains its shape, appearance, and road manners.

Tires on a Buick Riviera should be inspected before regular road use and at routine intervals even if the car covers very little mileage. Look for sidewall cracking, tread separation, bulges, cuts, air loss, irregular wear, and signs that the tire is rubbing or sitting unevenly on the rim. On collector cars, time and storage conditions often matter more than tread depth, so a low-mile tire still deserves close attention.

A practical routine is to check the Buick Riviera’s tires visually every time the car comes out of storage and to perform a more careful inspection several times each season. If the car is on early bias-ply tires, include the tubes, flaps if applicable, and the condition of the wheel itself in that review. Any sudden change in vibration, steering feel, or ride height is a signal to stop and inspect the tire and wheel assembly before further driving.

A Buick Riviera tire should be replaced when age, cracking, hardening, separation, impact damage, or prolonged storage deterioration make the casing questionable, even if the tread still looks usable. Collector-car tires often age out before they wear out, especially on low-mileage cars that spend long periods parked. Appearance alone is never the whole story, because internal degradation can exist long before the tread seems exhausted.

The right approach is to treat the tire as part of the Riviera’s overall safety system rather than as a cosmetic accessory. If the rubber has become stiff, the sidewalls are checking, or the car has been stored for years on the same set, replacement is usually wiser than trying to stretch service life. A professional tire inspection is especially important after long dormancy, after any curb or pothole impact, or before a freshly awakened Riviera returns to regular road use.

Buick Riviera did not use one tire type across its entire life, and the listed fitments show a clear progression from numeric bias-ply sizes such as 710-15, 760-15, and 8.45-15 into alphanumeric bias and radial sizes such as H70-15, H78-15, HR70-15, and JR78-15, followed by modern metric radials. The product range also includes multiple period-style series, from classic bias-ply offerings to later reproduction radials and performance-themed radials.

For restoration work, the useful question is not simply what Buick Riviera originally used, but what your specific year and configuration were equipped to take. A 1963 car and a 1995 car belong to very different tire eras, even though they share the Riviera name. Use the year-specific size first, then compare construction type and sidewall style to period photos, factory literature, and marque-club references if judging accuracy matters.

Correct tire fitment can affect both the presentation and judged credibility of a Buick Riviera, especially when the car is restored to a period-specific standard. Judges and knowledgeable enthusiasts notice whether the tire size, construction type, stance, and sidewall treatment fit the era of the car. An early Riviera on an obviously later low-profile radial or a later Riviera on the wrong whitewall treatment can change the visual balance immediately.

For a show-focused Buick Riviera, the goal is to match the tire to the car’s year, wheel diameter, and intended restoration level rather than simply installing a tire that fits the wheel. Owners building for concours or marque judging should compare the chosen size and sidewall treatment with period images and club guidance. Even for non-judged cars, correct fitment supports proportion, ride height, and the overall sense that the Riviera looks the way it should.

The correct sidewall style for a Buick Riviera restoration depends on the year and the character of the build. The available range includes blackwall, narrow whitewall, wide whitewall, dual-white-stripe, pin-white-stripe, redline, goldline, RWL, OWL, and raised yellow letter, which reflects how broad Riviera production was from the early 1960s through the late 1990s. Early cars generally align most naturally with blackwall or whitewall treatments, while later cars can support stripes, redlines, or lettered radials without looking out of period.

Start with the correct Buick Riviera size and era, then choose the sidewall that matches the visual language of that period. A formal early Riviera often looks right with a wider whitewall, while a later Riviera may suit a narrower whitewall, pin stripe, or a more performance-oriented lettered sidewall. If the car is being restored for authenticity, period photos and marque references are the best final check once the correct fitment family has been established.

A Buick Riviera can be driven safely on public roads when the tires are the correct size for the car’s year and wheel diameter, are in sound condition, and are matched as a proper set for construction type. The listed range includes bias-ply tires, bias-look radial tires, and true radials, and each will give the car a different feel. Safety depends on condition, age, inflation, wheel integrity, and whether the tire type suits the way the Riviera will actually be used.

For practical road use, later metric radials generally align more naturally with modern traffic expectations, while earlier bias-ply fitments are often chosen for authenticity and a period driving character. Whatever the year, do not assume a tire is road-ready simply because it looks clean or still has tread. A careful pre-drive inspection, proper inflation, and a realistic understanding of how a vintage or collector Buick Riviera behaves on its chosen tires matter far more than appearance.

Before driving a Buick Riviera, check cold inflation pressure, visible sidewall condition, tread surface, valve stems, wheel condition, and any signs of uneven wear or contact marks. Also confirm that all four tires are the correct size family for the car and that the wheel diameter matches the tire size, especially on overlap years such as 1986 through 1988. If the car runs early bias-ply tires, include tube-related air loss and wheel condition in the inspection.

A short walkaround before each drive prevents many avoidable problems on a collector Buick Riviera. If the car has been sitting, pay attention to flat spotting, age cracks, and any vibration during the first miles. After a restoration or a long storage period, it is wise to recheck torque, pressures, and the general behavior of the car at low speed before moving into normal traffic, because tire issues often show up immediately once the Riviera is back in motion.

Appropriate speed for a Buick Riviera depends on which tire type the car is running rather than on the Riviera name alone. An early Riviera on period-style bias-ply tires should be driven with more reserve and more awareness of heat build-up, tracking, and braking distance than a later Riviera on modern radial tires. A late-model Riviera on the correct metric radials is generally better suited to sustained road speeds than an early car restored on bias-ply construction.

The sensible rule is to drive the Buick Riviera according to the age, construction, and condition of the tires fitted, while staying comfortably within legal limits and the car’s mechanical condition. Collector cars reward smooth inputs and moderate pace, not abrupt lane changes or high-speed use. If the tire set is older, newly installed, or unfamiliar, use a conservative shakedown approach first and build confidence only after the car has shown stable behavior at ordinary road speeds.