Buick Skyhawk Tires

Buick Skyhawk uses several tire sizes across its 1975-1989 run. The listed sizes are BR78-13 for 1975-1980, B78-13 for 1976-1980, BR70-13 for 1978-1980, 175/80R13 and 195/70R13 for 1982-1987, 205/60R14 for 1985-1987, 185/80R13 and 205/70R13 for 1988-1989, and 215/60R14 for 1988-1989. All of those are 13-inch fitments except 205/60R14 and 215/60R14, which require 14-inch wheels.

The practical takeaway is that Buick Skyhawk tire selection has to start with the exact year and wheel diameter, not simply the model name. Early cars also overlap between bias-ply and radial-style alphanumeric sizes, while later cars may share the same year with both 13-inch and 14-inch applications. If the car has been restored, upgraded, or swapped to a different wheel set over time, compare the current wheel and sidewall markings before choosing a replacement.

B78-13 is an older alphanumeric bias-ply size used on Buick Skyhawk applications from 1976 through 1980. The B identifies the tire’s width class, the 78 refers to the aspect series, and the 13 is the wheel diameter in inches. Because there is no R in the code, B78-13 is a bias-ply size rather than a radial one.

That matters because a Buick Skyhawk fitted with B78-13 is following an earlier sizing convention than the later metric radial cars. A buyer trying to preserve original driving character or period appearance will usually want to keep that distinction in mind instead of treating B78-13 as interchangeable with a later metric size. On a collector car, confirm both the wheel diameter and whether the car is intended to stay bias-ply before moving to a replacement tire.

A 1985 Buick Skyhawk has three listed sizes because that model year includes more than one configuration. The year combines two 13-inch radial sizes, 175/80R13 and 195/70R13, with a 14-inch radial size, 205/60R14. That means the split is not just about width or profile; it also includes a wheel diameter difference.

For a 1985 Buick Skyhawk owner, the important step is identifying the exact wheel on the car before reading too much into the year alone. A 13-inch car and a 14-inch car cannot use the same tire even if both are listed under 1985. If the car has custom wheels, replacement steel wheels, or a long ownership history, verify the wheel diameter directly and then compare the existing sidewall size to the year-specific options.

Buick Skyhawk uses both 13-inch and 14-inch wheel fitments across the years covered here. From 1975 through 1984, all listed sizes are 13-inch. Starting in 1985, 14-inch applications appear with 205/60R14, and 14-inch fitments continue in 1988-1989 with 215/60R14 while 13-inch sizes remain in use on other configurations.

That year break is the first thing to check when sorting out a Buick Skyhawk tire. Owners often focus on the section width or whitewall style first, but none of that matters if the rim diameter is wrong. A simple look at the current sidewall or a direct measurement of the wheel will settle whether the car needs a 13-inch or 14-inch tire, and that should happen before comparing tread profile or appearance.

A 1988 Buick Skyhawk can use 185/80R13, 205/70R13, or 215/60R14, so the correct tire is tied to the car’s specific wheel and setup rather than the year by itself. Two of those sizes fit 13-inch wheels, while 215/60R14 fits a 14-inch wheel. The existing sidewall marking, the actual wheel diameter, and any original paperwork for the car are the best ways to sort out which of those three belongs on a particular 1988 example.

That same method works on any Buick Skyhawk year that shows multiple sizes. Start by confirming the wheel diameter, then compare the current tire size to the year listing, and only after that consider width, profile, or sidewall appearance. If the car has been modified or wears non-original wheels, a marque specialist or long-time restorer can help determine whether the present setup is original to the car or a later change.

Buick Skyhawk tires in the available product range include narrow whitewall, wide whitewall, blackwall, and RWL sidewall styles. Narrow and wide whitewalls appear in 13-inch metric radial sizes such as 175/80R13 and 185/80R13, blackwall appears in the 205/70R13 Michelin offering, and RWL appears in the 215/60R14 BFGoodrich Radial T/A. Those differences give Buick Skyhawk owners several distinct visual directions depending on year and presentation.

A more formal late-1970s or 1980s street presentation often pairs well with whitewalls, while a sportier Buick Skyhawk may suit blackwall or raised white letter styling better. The key is not to choose appearance first and fitment second. Select the correct year-and-wheel-diameter size before deciding which sidewall style best matches the car’s trim, restoration goals, and overall period look.

The available Buick Skyhawk products here come from Maxxis, BFGoodrich, Coker Classic, and Michelin. Maxxis appears in 175/80R13 and 185/80R13, BFGoodrich covers several whitewall and performance-style radial options, Coker Classic offers a Star Series radial in 185/80R13, and Michelin appears in 205/70R13. That mix gives Buick Skyhawk owners both style-oriented and more performance-leaning choices within certain later metric sizes.

Brand choice should come after fitment is settled, not before. Buick Skyhawk sizes from the mid-1970s alphanumeric years do not have listed product offerings here, while several later metric sizes do, so the available brand list depends heavily on the exact size the car needs. Once the correct size is established, compare sidewall style, tire series, and rim-width compatibility to narrow the best match for the car.

Available Buick Skyhawk tire series include Classic Whitewall MA-1, Silvertown Radial, Maxxis Radial, Star Series, Michelin XDX-B, and Radial TA. All listed products are radial construction, but the series differ in presentation and intended character: some focus on classic whitewall appearance, some on blackwall European-style performance, and some on raised white letter muscle-era styling. The series also vary by size, so not every visual or performance style is available in every Buick Skyhawk fitment.

For a Buick Skyhawk owner, the practical difference is choosing a series that matches both the car’s required size and the look you want the car to carry. A whitewall radial may suit a more original or upscale appearance, while blackwall or RWL options can better fit a sport-oriented build. After confirming the correct size and wheel diameter, compare the series by sidewall style and rim-width range rather than assuming any one family covers all years.

A Buick Skyhawk stored on its tires should be kept in a cool, dry, dark space away from ozone sources such as electric motors, battery chargers, and welders. Tires last better when they are protected from direct sunlight, petroleum contamination, and long periods of sitting on dirty or damp concrete. Inflate them to an appropriate pressure for storage and keep the car clean so moisture does not sit around the wheels.

If a Buick Skyhawk will sit for months at a time, move it occasionally so the tires do not rest on one contact patch indefinitely, or support the car in a way that follows good restoration practice. Collector cars often age tires by inactivity rather than mileage. A simple storage routine does more for tire life than most owners expect, especially on lower-use cars that come out only for fair-weather drives, local shows, or seasonal events.

Tires on a Buick Skyhawk should be inspected regularly even if the car is driven very little. A visual check before each outing and a more deliberate inspection at least several times per year is a sensible routine for a collector or hobby car. Look for sidewall cracking, tread separation, uneven wear, impact damage, valve-stem issues, and signs that the tire is rubbing because wheel or suspension specifications no longer match the size fitted.

That inspection habit is especially important on Buick Skyhawk models with multiple possible sizes, because an incorrect replacement tire may show clues long before it fails. Uneven clearance, unusual wear, or steering changes can point to a size mismatch or wheel issue. Pair tire checks with brake, suspension, and alignment checks so the car’s overall chassis condition supports the tire rather than working against it.

A Buick Skyhawk tire should be replaced when age, cracking, hardening, vibration, bulges, or separation become evident, even if the tread still looks usable. Collector tires can age out long before they wear out, and low annual mileage often hides deterioration that only shows up under careful inspection. Tread depth alone is not a reliable measure of serviceability on an older hobby car.

The practical rule is to treat calendar age and physical condition as seriously as mileage on a Buick Skyhawk. If the tires have an uncertain history, have been stored poorly, or are several years old with visible age signs, replacement is usually wiser than trying to extract more use from them. Any tire that changes the way the car rides, tracks, or brakes deserves immediate attention before the next drive.

Buick Skyhawk original-type fitment depends heavily on year because the listed sizes change repeatedly across the production run. Early cars used alphanumeric sizes such as BR78-13, B78-13, and BR70-13, while later cars moved to metric radial sizes including 175/80R13, 195/70R13, 205/60R14, 185/80R13, 205/70R13, and 215/60R14. That pattern shows Buick Skyhawk fitment evolved over time rather than staying tied to a single tire specification.

For restoration work, the right answer comes from matching the exact year and configuration first, then comparing the car to original paperwork, surviving take-off tires, or marque-club references. A Buick Skyhawk restored only by model name can easily end up with a visually plausible but incorrect tire. Getting the size family right is the foundation, and then sidewall style and tire series can be selected to support the restoration goal.

Correct tire fitment can absolutely affect how a Buick Skyhawk is judged, presented, and valued, especially when the car is restored to a factory-style appearance. Judges and knowledgeable buyers notice whether the tire size, profile, wheel diameter, and sidewall style suit the year and character of the car. A Buick Skyhawk wearing a clearly mismatched profile or the wrong wheel diameter can look out of period even to non-specialists.

For a serious restoration, the best approach is to decide early whether the Buick Skyhawk is being preserved for authenticity, personalized for touring, or styled for a more sporting look. That choice influences whether a whitewall radial, blackwall radial, or RWL tire makes the most sense once the correct size is established. Marque clubs and original sales literature remain useful references when show judging or resale presentation matters.

Buick Skyhawk restoration sidewall choices in the available range include narrow whitewall, wide whitewall, blackwall, and RWL. Whitewall options are offered in several 13-inch metric radial sizes, blackwall appears in 205/70R13, and RWL appears in 215/60R14. The correct look depends on the year, trim level, and whether the car is being restored as a more formal compact Buick or presented with a sportier late-period appearance.

A careful Buick Skyhawk restoration usually starts with period photos, original literature, and the car’s own surviving details before choosing a sidewall style. Whitewalls often suit a more original boulevard look, while blackwall and raised white letter tires can fit sport-oriented late cars more naturally. Once the correct size and wheel diameter are confirmed, the sidewall treatment becomes the finishing detail that makes the whole car look right.

A Buick Skyhawk fitted with the correct size, properly mounted on the correct rim width, and kept in sound condition can be used on public roads in the normal collector-car sense. The listed available products are all radial tires in later metric sizes, which suits practical road use for those later applications. Safety still depends on the condition of the tire, wheel, brakes, suspension, and steering rather than the sidewall code alone.

For real-world use, a Buick Skyhawk should be treated as a vintage car that needs regular inspection rather than as a modern appliance. Before sustained road driving, make sure the tires are not aged out, the inflation pressures are appropriate, and the car tracks and brakes properly. If the car has sat for a long time or recently changed wheel-and-tire combinations, a thorough chassis inspection is wise before resuming regular road use.

Before driving a Buick Skyhawk, check tire pressure, sidewall condition, visible tread wear, wheel fastener security, and basic clearance around the tires. Also verify that all four tires match the intended size setup for the car, especially on years where more than one size and more than one wheel diameter were used. A quick look for cracking, bulges, cuts, or rubbing can catch the most common problems before they become roadside failures.

A Buick Skyhawk that has been parked for weeks or months deserves a slightly longer pre-drive walkaround. Roll the car a short distance if possible and look for flat spotting, then pay attention to any vibration or pull once under way. If anything feels different from the car’s normal behavior, stop and inspect again rather than assuming the issue will clear up on its own.

Appropriate speed for a Buick Skyhawk depends on the exact tire fitted, its age, and its condition, not simply whether the size is year-correct. A fresh, correctly matched radial in good condition is a very different case from an aged collector tire of uncertain storage history. Even when the sidewall size is right, an old or deteriorated tire should not be trusted at sustained highway speed.

The safest approach with a Buick Skyhawk is to drive within the comfort level of the tire and the overall condition of the car. If the tires are recently fitted and the chassis is sorted, moderate road speeds are reasonable; if the car is newly revived, rarely driven, or running on older rubber, begin conservatively and evaluate its behavior carefully. Stability, heat buildup, and steering feel are all warning signals worth respecting.