Buick Skylark Tires

Buick Skylark uses a wide spread of sizes across its 1963 to 1998 run. The listed sizes are 650-13 for 1963; 735-14, 775-14, and 825-14 in mid-1960s applications; F70-14, F78-14, G78-14, H78-14, E78-14, ER78-14, and FR78-14 in later bias-ply and alphanumeric years; then 185/80R13, 205/70R13, 215/60R14, 185/75R14, 195/70R14, 195/65R15, and 205/55R16 in the metric radial years. Those sizes correspond to 13-, 14-, 15-, and 16-inch rims depending on the application.

The practical takeaway is that Buick Skylark tire selection starts with year and wheel diameter, not the model name alone. Early cars may share a year with multiple bias-ply sizes, mid-1970s cars can show both bias-ply and radial alphanumeric options, and later cars may have three or four metric sizes in the same year. Match the tire size stamped on the existing tire if it is known to be correct, then verify the actual wheel diameter before choosing a replacement.

On a Buick Skylark, 650-13 is an early numeric bias-ply size used for 1963 applications. The 650 portion is the nominal section width with the decimal omitted, so it represents roughly 6.50 inches of width, and the 13 is the wheel diameter in inches. Products offered in that size are bias-ply tires built for 13-inch rims, with sidewall options including both narrow and wide whitewalls.

That matters because 650-13 is not interchangeable with the later 14-inch or metric radial sizes used on other Buick Skylark generations. If you are restoring a 1963 car, this size preserves the proper early-1960s profile and appearance better than substituting a later radial by guesswork. It is also the type of application where the overall look of the sidewall can strongly affect how authentic the finished car appears.

A 1990 Buick Skylark can show four tire sizes because that model year spans multiple wheel packages. The listed sizes are 185/75R14, 185/80R13, 195/70R14, and 215/60R14, which means 13-inch and 14-inch rims were both used, along with different tire widths and aspect ratios. That is a rim-diameter split first and a configuration split second, so the correct answer depends on the exact wheels fitted to the car.

The safest approach is to inspect the wheel itself and confirm whether the car carries 13-inch or 14-inch rims before comparing sidewall dimensions. Once rim diameter is confirmed, the remaining choice usually comes down to the specific package or trim-level-type setup on that Buick Skylark. A car that has been through decades of service may also have had wheels swapped, so do not rely on year alone when 1990 is involved.

Buick Skylark uses several rim diameters across the years covered here: 13, 14, 15, and 16 inches. The earliest listed size, 650-13 in 1963, uses a 13-inch wheel, and the first change appears in 1966 when 14-inch sizes enter the range. Later metric applications continue with 13- and 14-inch wheels through the 1980s and early 1990s, then certain 1992 to 1997 cars add 15- and 16-inch fitments.

That spread makes wheel measurement one of the most important first checks on any Buick Skylark. A 14-inch tire will not substitute for a 13-inch or 15-inch wheel, even if the car looks similar from a distance, and the later metric years can overlap several diameters in the same period. Confirm the stamping on the wheel or measure the rim before selecting a size, especially on cars that may have changed hands and components over time.

Buick Skylark spans years that were built around both bias-ply and radial tire eras, and the listed products reflect that. Early and mid-1960s sizes such as 650-13 and 775-14 are offered in bias-ply construction, many 1970s sizes include bias-ply options, and later sizes like 185/80R13, 195/65R15, and 205/55R16 are radial. Some late-1970s Buick Skylark applications even show both bias-ply and radial alphanumeric sizes in the same general period, such as E78-14 and ER78-14.

Choose bias-ply when period-correct appearance, steering feel, and judging authenticity matter most. Choose radial when your specific Buick Skylark was set up for radial construction or when the listed year and size clearly place the car in the modern radial era. The key is to stay within a size and construction type that matches the wheel diameter and overall character of the specific car rather than forcing an earlier chassis into a later tire style.

Radial tires can change how a Buick Skylark feels on the road because radial and bias-ply constructions flex differently and carry different tread and sidewall behavior. In this range, the contrast is most obvious when comparing mid-1970s alphanumeric bias-ply sizes such as E78-14 with radial counterparts like ER78-14, or when comparing 1960s and early-1970s bias-ply fitments with the metric radial packages used from 1980 forward. The later metric radial Buick Skylark applications were designed around that more modern construction language.

For an owner, that means ride, steering response, and the car’s visual stance may all feel different depending on construction choice. A restored Buick Skylark intended for shows may benefit from staying true to its original-era tire type, while a later driver-grade car should stay with the radial sizes listed for its years and wheel package. Any change in construction should be approached as part of the car’s overall setup rather than as an isolated cosmetic decision.

Mixing crossply and radial tires on a Buick Skylark is not a good practice. The listed range includes both constructions, but they behave differently under load, steering input, and braking, especially on cars that were originally tuned around one or the other. A Buick Skylark that uses E78-14 bias-ply fitment is not best served by combining it with ER78-14 radial tires simply because the size family looks similar.

Consistency matters more than convenience on a collector or transitional-era Buick Skylark. If the car belongs to a year where both construction types appear in the broader model range, decide which complete setup is correct for your specific configuration and keep the full set matched in construction, size family, and wheel diameter. That approach gives a more predictable driving character and preserves the design intent of the car better than a mixed set.

A 1977 Buick Skylark can use E78-14, ER78-14, or FR78-14, all on 14-inch rims. The important distinction is that E78-14 is a bias-ply alphanumeric size, while ER78-14 and FR78-14 are radial alphanumeric sizes with different width classes. That means a 1977 Buick Skylark owner needs to identify more than the year alone to choose correctly.

Start by verifying the exact size currently on the car if it is known to be correct, then compare the wheel diameter and the overall stance the car is meant to carry. If the car is a restoration, period photos, original paperwork, or marque references can help sort out whether the goal is a bias-ply presentation or a radial-era setup. The sidewall style can be selected after the correct size family has been established.

Buick Skylark tire options in this range include blackwall, narrow whitewall, wide whitewall, redline, goldline, blueline, dual white stripe, pin white stripe, and raised white letter styles. Early 1960s and many 1970s comfort-oriented sizes lean toward whitewall presentations, while some late-1960s and early-1970s performance-oriented sizes such as F70-14 also appear with redline, pin stripe, and RWL styling. Later metric radial sizes add both blackwall and whitewall choices, with some sport-focused applications offered as RWL or blackwall.

That variety lets a Buick Skylark owner tune the car’s appearance to the era and personality of the specific build. A crisp whitewall can suit a more formal or showroom-style restoration, while redlines, goldlines, or RWL tires better match performance-era themes. Before choosing by appearance alone, make sure the preferred sidewall style is available in the exact size and construction that fits the car.

The Buick Skylark sizes listed here are served by several brands, including Coker Classic, US Royal, BFGoodrich, Firestone, Goodyear, STA, Maxxis, Michelin, Tornel, Travelstar, Dunlop, and American Classic. Not every brand covers every year or size, and the spread changes substantially between early bias-ply sizes and later metric radial applications. Some sizes have multiple brand choices, while others are represented by only one or two products.

Brand choice should come after size, wheel diameter, and construction type are settled. Once the correct Buick Skylark size is identified, compare brands by sidewall style, tread character, and how closely the tire suits the car’s intended use, whether that is show presentation, casual cruising, or later-era road driving. Staying faithful to the era of the car usually produces the most coherent result visually and dynamically.

Buick Skylark fitments here are offered in a broad mix of tire series, including Coker Classic Bias Ply, US Royal Classic Bias Ply, Silvertown Classic Bias Ply, Firestone Classic Bias Ply, Wide Oval, Custom Wide Tread, Speedway Wide Tread, Traxion, Transport Highway, Silvertown Radial, Star Series, Maxxis Radial, Radial T/A, Tornel Classic, Sport Classic, American Classic Radial, and several modern performance radial lines. Those series differ by construction type, tread style, sidewall presentation, and intended period character. Some are clearly restoration-oriented bias-ply lines, while others are later radial or performance radial offerings.

For a Buick Skylark owner, the right series depends on what chapter of Skylark history the car belongs to. A 1960s or early-1970s restoration usually points toward classic bias-ply or era-style performance series, while a 1980s or 1990s car generally belongs with metric radials that suit its later chassis design. Once size and wheel diameter are confirmed, the series choice becomes the final layer that shapes the car’s look and personality.

A Buick Skylark should be stored on clean, properly inflated tires in a cool, dry, and dark space away from direct sunlight, ozone sources, and long periods on hot concrete. If the car sits for extended periods, moving it slightly from time to time helps avoid flat spotting, especially on bias-ply constructions used on many 1960s and 1970s Buick Skylark applications. Clean tires with mild soap and water rather than dressings that can dry or discolor the rubber.

Storage habits matter because collector cars often age their tires through inactivity rather than mileage. A Buick Skylark that is parked for months at a time can develop casing stress, sidewall cracking, or vibration long before tread wear becomes the issue. Cars with whitewall or specialty sidewall styling also benefit from careful cleaning and shielding from light so the tire keeps the period look that often makes the restoration convincing.

Tires on a Buick Skylark should be inspected before each drive and more thoroughly at regular intervals even if the car is rarely used. Look for sidewall cracking, weathering, bulges, uneven wear, embedded objects, and signs of age-related separation, paying especially close attention to older bias-ply applications and collector cars that spend much of their time stationary. The wheel and valve area should also be checked for leaks, damage, and evidence that the tire has shifted or deteriorated.

A brief inspection routine is especially worthwhile because many Buick Skylarks today are hobby cars, not daily transportation. Problems often develop slowly and can be missed when a car leaves the garage only on fair-weather weekends. Catching deterioration early helps preserve both the tires and the car itself, since a failed tire on a restored Buick Skylark can damage trim, sheet metal, or hard-to-replace wheel components.

Buick Skylark tires should be replaced when age, cracking, hardening, bulging, separation, or repeated vibration indicate the casing is no longer trustworthy, even if the tread still looks usable. Collector vehicles often wear out their tires by time and environment rather than by mileage, and that applies to both bias-ply and radial Buick Skylark fitments. Any tire with visible structural deterioration should be treated as a replacement candidate without waiting for the tread to disappear.

Low-use cars can create a false sense of security because the tread often stays deep long after the rubber has aged beyond its best service life. If a Buick Skylark carries an older specialty tire, have it evaluated as part of regular maintenance rather than assuming appearance tells the whole story. The same caution applies even more strongly to any tire that has spent years in storage or has an uncertain history.

Buick Skylark did not use one single original tire type across the years covered here. The range includes early numeric bias-ply sizes such as 650-13, mid-1960s numeric 14-inch sizes, late-1960s and 1970s alphanumeric bias-ply and radial sizes, and later metric radials on 13-, 14-, 15-, and 16-inch wheels. Available series in the replacement market include classic bias-ply lines, period-style performance series, and later radial offerings that align with the era of the car.

For restoration work, the right answer depends on the exact Buick Skylark year and configuration rather than the model name alone. If originality matters for judging or historical accuracy, compare the car’s surviving tire information, original paperwork, and marque references to the listed size families and sidewall styles. That approach helps you distinguish between what is era-correct for Skylark in general and what is correct for your specific car.

Correct tire fitment can absolutely affect how a Buick Skylark is judged and how seriously a restoration is taken. Judges and informed buyers notice whether the wheel diameter, size family, construction type, and sidewall style suit the year and character of the car. A 1963 Buick Skylark on an early bias-ply whitewall setup presents very differently from a late-1960s performance-themed Skylark on redlines or a 1990s Skylark on metric radials.

The closer the tires are to the proper era and configuration, the more unified the car tends to look. For a Buick Skylark being prepared for shows, club events, or resale, tires are one of the most visible finishing details and can either support or undermine the rest of the restoration. Marque clubs and original factory literature remain the strongest references when the goal is high-level authenticity.

The correct sidewall style for a Buick Skylark restoration depends on the year and the personality of the specific car. The available range here includes blackwall, narrow whitewall, wide whitewall, redline, goldline, blueline, dual white stripe, pin white stripe, and raised white letter styles, which span everything from conservative early-1960s presentation to late-1960s and early-1970s performance cues. Later metric radial Buick Skylark applications are generally served by blackwall or whitewall styles that suit more modern proportions.

Choosing the sidewall should be the final restoration decision after size and construction are settled. Whitewalls usually complement formal and mainstream Buick Skylark appearances, while redlines, goldlines, and RWL tires fit cars with a stronger sporty or muscle-era visual theme. If the goal is judged authenticity, compare period photos and factory literature for the exact year so the sidewall treatment supports the rest of the restoration rather than overpowering it.

A Buick Skylark can be driven on public roads when the tires are the correct size for the wheel, are in sound condition, and suit the era and use of the car. The later metric radial applications are the most straightforward for normal road use, while early bias-ply and transitional 1970s fitments require more attention to age, inflation, and overall condition. Safety depends as much on condition and correct fitment as it does on the size printed on the sidewall.

Before putting any Buick Skylark into regular road service, inspect the tires carefully and make sure the wheel diameter and construction type match the application. A well-restored show car on bias-ply tires can be roadworthy for appropriate use, but it should not be treated like a modern commuter simply because the tread looks fresh. The older the chassis and tire design, the more conservative the owner should be about speed, distance, and driving conditions.

Before driving a Buick Skylark, check inflation pressure, visible sidewall condition, tread condition, valve stems, and any signs of flat spotting or age-related cracking. Confirm that all four tires match in size family and construction, especially on years where Buick Skylark used both bias-ply and radial-type options across the model range. The wheels themselves should also be checked for damage, loose trim rings, and anything that suggests the tire is not seated or supported correctly.

That pre-drive inspection is especially important on collector cars because long storage periods can create issues that do not show up until the car starts moving. A Buick Skylark that has sat through a season or more deserves a slower, more methodical recommissioning process than a modern daily driver. Even a short local outing is safer and more enjoyable when the tires, wheels, and basic chassis condition have been reviewed first.

The appropriate speed for a Buick Skylark on original-type tires depends on the era of the car, the construction of the tire, and the overall mechanical condition of the vehicle. A later Buick Skylark on correct metric radials can generally be used more like a conventional road car, while a 1960s or 1970s Skylark on bias-ply tires should be driven with more restraint because its handling and braking feel differ from a modern radial-equipped car. Tire age and condition matter just as much as nominal speed capability.

A sensible rule is to drive a Buick Skylark at speeds that suit the tire design, the age of the chassis, and the condition of the car rather than trying to match modern traffic pace at all times. Smooth inputs, moderate cruising speeds, and extra following distance are especially wise on bias-ply setups. If the car is newly acquired or freshly recommissioned, build speed gradually until you understand how that particular Buick Skylark behaves on its current tires.