The 1981 Buick Skylark came from an era when compact American cars were balancing everyday practicality with cleaner, more modern packaging, and the Skylark remained an important Buick nameplate in that shift. For owners today, tire choice is less about broad guesswork and more about matching the exact trim and maintaining the car’s intended stance on its 13-inch wheels. Base and Limited models use 185/80R13 radial tires, while the Sport uses 205/70R13 radials. That opens the door to different visual treatments, from whitewall styles on 185/80R13 to a blackwall Michelin offering in 205/70R13. The right choice starts with trim level, then moves to appearance, wheel compatibility, and road-use goals.
Which Tire Size Is Right for The 1981 Buick Skylark
The 1981 Buick Skylark uses two primary tire sizes, and the correct one depends on the sub-model rather than a change in wheel diameter. Both sizes are radial tires for 13-inch rims, so the first step is confirming whether the car is a Base, Limited, or Sport model. Once that is settled, the decision shifts to sidewall style, tire series, and how closely the tire matches the look and use of the car.
185/80R13 is a metric radial size in which 185 refers to section width in millimeters, 80 is the aspect ratio, R indicates radial construction, and 13 is the rim diameter in inches. On the 1981 Buick Skylark, this is the primary fitment for Base and Limited models and carries the taller, more traditional profile of the two Skylark sizes. Available choices include narrow whitewall and wide whitewall styles from Maxxis, BFGoodrich, and Coker Classic across several radial series. It is the size to evaluate when preserving the appearance and trim-level fitment of non-Sport Skylarks.
205/70R13 is also a metric radial size, with a 205-millimeter nominal section width, a 70-series profile, radial construction, and a 13-inch rim diameter. For the 1981 Buick Skylark, this size belongs to the Sport model and gives that trim its own fitment direction without changing wheel diameter. The available product offering centers on a Michelin XDX blackwall radial, making construction straightforward even if appearance choices are narrower than in 185/80R13. This is the size to confirm when the car is a Sport and the goal is staying with the proper trim-specific setup.
Sub-model fitment matters on the 1981 Buick Skylark because tire size is not shared across the full range. Base and Limited models use one radial size, while the Sport moves to a different 13-inch radial, so identifying the exact trim is the first step before comparing tires.
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1981 Buick Skylark Base
The 1981 Buick Skylark Base uses the 185/80R13 radial size on a 13-inch rim. That keeps tire selection focused on profile and appearance, with whitewall-oriented choices that suit a traditional presentation while still requiring normal wheel-width and clearance checks.
The 1981 Buick Skylark Limited also uses the 185/80R13 radial size on a 13-inch rim. Since fitment matches the Base model, the main decision becomes choosing among the available whitewall styles and tire series that best match the car’s finish and intended use.
The 1981 Buick Skylark Sport uses the wider, lower-profile 205/70R13 radial size on a 13-inch rim. That makes trim confirmation especially important, because the Sport’s tire choice should be evaluated separately from Base and Limited models before comparing product and wheel-width compatibility.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1981 Buick Skylark Tires for Sale
Available 1981 Buick Skylark tires center on radial choices in 185/80R13 and 205/70R13. Buyers can compare Maxxis, BFGoodrich, Coker Classic, and Michelin options by sidewall treatment, tire series, load figures where stated, and rim-width compatibility.
These 1981 Buick Skylark tire FAQs focus on trim-specific sizing, 13-inch rim fitment, radial tire selection, sidewall appearance, and the checks that matter before regular road use.
Tire Size & Fitment
What tire size fits a 1981 Buick Skylark?
A 1981 Buick Skylark uses either 185/80R13 or 205/70R13, depending on sub-model. Base and Limited models use 185/80R13 radial tires, while the Sport uses 205/70R13 radials. Both sizes are built for 13-inch rims, but they are not the same fitment across the full Skylark range.
The practical step is confirming the exact trim before comparing products. A Base or Limited should be evaluated around 185/80R13 choices, while a Sport should be matched to 205/70R13. If the car has replacement wheels, older tires of uncertain origin, or suspension changes, check the actual wheel width and available clearance before settling on a tire.
What size rim does a 1981 Buick Skylark use?
The primary Skylark tire sizes for 1981 are both built around a 13-inch rim diameter. That applies to 185/80R13 on Base and Limited models and 205/70R13 on the Sport. The tire size itself tells part of the story, since the final number in both sizes is 13.
Rim diameter is only the first confirmation point. Wheel width also matters, especially if the car has been changed from its original wheel setup over the years. Before choosing a tire, verify that the wheels on the car are actually 13-inch wheels in a width that suits the intended tire, and make sure the trim-specific size still clears suspension and bodywork properly.
Do all 1981 Buick Skylark sub-models use the same tire size?
No. The 1981 Buick Skylark Base and Limited share the 185/80R13 radial size, but the Sport uses 205/70R13. Even though all three sub-models use 13-inch rims, the tire sizing differs enough that the correct choice should start with trim identification, not just the year and model name.
That difference affects both appearance and product selection. The 185/80R13 fitment offers whitewall-oriented choices that suit Base and Limited cars, while the 205/70R13 Sport fitment follows a different sizing direction. If a Skylark has been repainted, rebadged, or modified, compare the actual sub-model and wheel setup before replacing tires so the selected size matches the car’s configuration.
Choosing the Right Tire
What should I consider when choosing a tire for a 1981 Buick Skylark?
Start with the correct trim-specific size. A 1981 Buick Skylark Base or Limited uses 185/80R13, while the Sport uses 205/70R13, and all are radial tires for 13-inch rims. Once size is confirmed, the main differences move to tire series, sidewall appearance, rim-width compatibility, and load figures where they are stated.
The right choice depends on how the car is used and how it should look. A traditional whitewall presentation may suit a Base or Limited, while a blackwall radial may better match a Sport. It also helps to confirm whether the car still carries its original wheel style or has aftermarket wheels, since that can affect which available tire is the most appropriate match.
What sidewall styles are available for 1981 Buick Skylark tires?
Sidewall choices for the 1981 Buick Skylark include narrow whitewall, wide whitewall, and blackwall, depending on tire size. The 185/80R13 fitment used on Base and Limited models has both narrow and wide whitewall options, while the 205/70R13 Sport fitment is available in a blackwall Michelin radial.
That makes sidewall selection an important appearance decision, especially on a car that still carries period-style trim and wheel covers. Whitewalls can support a more formal or restoration-oriented look, while a blackwall keeps the presentation simpler. The sidewall style should be chosen only after confirming the right tire size for the specific Skylark sub-model.
What brands offer tires for the 1981 Buick Skylark?
1981 Buick Skylark tires are available from Maxxis, BFGoodrich, Coker Classic, and Michelin across the two primary sizes. The 185/80R13 size includes offerings from Maxxis, BFGoodrich, and Coker Classic, while the 205/70R13 Sport fitment is represented by Michelin in the available product range.
Brand choice should be weighed alongside the actual tire size, sidewall style, and tire series rather than treated as a shortcut. Some buyers will be comparing whitewall presentation in 185/80R13, while others need the Sport model’s 205/70R13 fitment first and foremost. Looking at rim-width compatibility and the overall visual character of the tire usually leads to a better match than brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 1981 Buick Skylark?
A period-style 1981 Buick Skylark should begin with the correct trim-specific size: 185/80R13 for Base and Limited models, or 205/70R13 for the Sport. From there, the available 185/80R13 radial choices include narrow and wide whitewalls that suit a more traditional Buick presentation, while the Sport’s 205/70R13 offering follows a blackwall appearance.
The most convincing result usually comes from matching size, sidewall treatment, and trim personality rather than chasing a generic vintage look. If exact originality matters, compare the car’s surviving details and period reference material before selecting between narrow and wide whitewalls. Even on a restoration-minded Skylark, the tire should still be checked against the actual wheel and driving setup.
How does tire construction affect the appearance of a restored 1981 Buick Skylark?
On the 1981 Buick Skylark, the primary fitments are radial tires, so the appearance question is less about switching from bias-ply to radial and more about choosing the right radial style. In this case, visual differences come mostly from sidewall treatment and profile, especially between the whitewall 185/80R13 options and the blackwall 205/70R13 Sport fitment.
That means a restored Skylark can look noticeably different even when tire construction remains the same. A wide whitewall can create a more formal, upscale impression on a Base or Limited, while a blackwall keeps the look cleaner and more restrained. The best visual outcome comes from pairing the correct size with the trim level and wheel presentation already on the car.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1981 Buick Skylark?
Yes. A 1981 Buick Skylark may have the correct nominal tire size for its trim, but aftermarket wheels, altered wheel widths, suspension changes, or body modifications can change how that tire fits in practice. That matters whether the car uses 185/80R13 on Base and Limited models or 205/70R13 on the Sport.
A tire should be checked against the actual wheel and the space available around steering and suspension components, not just the original application. Cars that have been lowered, fitted with different springs, or changed to non-original wheels deserve extra attention. Confirming wheel width and checking for rubbing at full steering lock can prevent fitment surprises after installation.
What should I inspect before driving a 1981 Buick Skylark on new tires?
Before putting a 1981 Buick Skylark back into regular road use on new tires, inspect the wheels, valve stems, lug hardware, and overall tire clearance. It also helps to verify that the installed size matches the car’s trim level, since Base and Limited models use 185/80R13 while the Sport uses 205/70R13.
A short check drive should follow installation so any vibration, pull, or interference can be caught early. Collector and low-use cars also deserve a close look at suspension bushings, steering components, and brake condition, since fresh tires can highlight problems that old tires masked. Proper inflation and a visual recheck after the first miles are sensible final steps.
How should 1981 Buick Skylark tires be maintained?
1981 Buick Skylark tires should be maintained with regular pressure checks, visual inspections, and periodic reviews for cracking, cuts, bulges, uneven wear, or slow air loss. That applies whether the car uses 185/80R13 or 205/70R13. On collector-era cars that see occasional use, age and storage conditions often matter as much as tread depth.
Long periods of sitting can be hard on tires, especially if the car is exposed to heat, sunlight, or damp storage. Keeping the Skylark clean, properly inflated, and parked away from ozone sources such as electric motors can help preserve the tires. Any sign of irregular wear also deserves a check of alignment, steering condition, and wheel setup before more road miles.
