Buick 80 Series Tires

Buick 80 Series fitments in the years listed are 650-19 for 1931, 700-18 for 1932, 700-15 for 1933, 700-16 for 1936 through 1939, and 750-16 for 1940. Each size uses the rim diameter shown after the dash, so those years correspond to 19-inch, 18-inch, 15-inch, and 16-inch wheels respectively.

The practical takeaway is that year and wheel diameter have to match before anything else. A Buick 80 Series that has had wheels swapped during its life may no longer follow the original year pattern, so the safest approach is to check the actual rim diameter on the car and then compare it with the year listing.

On a Buick 80 Series, 650-19 is a traditional numeric bias-ply size. The 650 indicates an approximate 6.50-inch section width, while 19 is the rim diameter in inches, and for this application it is the size used on 1931 Buick 80 Series models.

That older numeric code matters because it is easy to mistake it for a modern sizing system, and it is not one. When replacing a Buick 80 Series tire in this format, match the size exactly and make sure the wheel is the correct 19-inch diameter rather than assuming another early-1930s Buick wheel will interchange.

Buick 80 Series uses several rim diameters across the years covered here: 19-inch in 1931, 18-inch in 1932, 15-inch in 1933, and 16-inch from 1936 through 1940. The major change points are 1932, 1933, and 1936, with 16-inch wheels continuing into 1940 while the tire width increases from 700-16 to 750-16.

That means the wheel itself has to be identified before selecting a tire, especially on restored cars that may have mixed parts from nearby model years. Rim diameter is a hard fitment boundary, so a correct-section tire on the wrong wheel diameter is still the wrong tire for a Buick 80 Series.

Buick 80 Series sizes in this range are all bias-ply numeric fitments, and the standard restoration approach for these pre-war applications is to use tubes. The available passenger-car products in 650-19, 700-18, 700-15, 700-16, and 750-16 are all bias-ply offerings, which aligns with tube-type fitment practice for the period.

Inner tubes are especially important on collector cars that spend long periods parked and then return to intermittent use. If a Buick 80 Series has replacement wheels or unusual truck-style tire choices, inspect the wheel condition carefully and confirm that the tube, flap if needed, and tire are all appropriate for the exact wheel and service use.

The correct Buick 80 Series tire size starts with the production year: 1931 uses 650-19, 1932 uses 700-18, 1933 uses 700-15, 1936 through 1939 use 700-16, and 1940 uses 750-16. Those year breaks also track wheel-diameter changes, which makes the model year more than a simple styling reference.

A smart check is to compare the tire size on the car, the rim diameter, and any original paperwork or restoration records before settling on a replacement. That extra step matters on a Buick 80 Series because a wheel swap from another year can make the car look correct at a glance while still needing a completely different tire.

Buick 80 Series tire offerings here include blackwall, wide whitewall, and in one 700-18 application, double-whitewall. Blackwall appears across every listed size, while whitewall options are present in several passenger-car sizes including 650-19, 700-18, 700-15, 700-16, and 750-16.

That variety lets a Buick 80 Series owner choose between a more understated touring look and a brighter presentation suited to formal pre-war styling. For a restoration-minded car, sidewall style should follow the character of the build and the period appearance being pursued rather than simply choosing the widest whitewall available.

Buick 80 Series tires in these sizes come from Firestone, Lester, Excelsior, STA, BFGoodrich, Avon, and Tornel. Brand coverage varies by size, with some sizes centered on passenger-car classic bias-ply lines and others also including military or truck-oriented products in the same nominal size.

That means the brand name alone does not settle the fitment question. The better approach for a Buick 80 Series is to choose the correct size first, then compare the construction style, sidewall treatment, and intended service type so the tire matches the car’s restoration goal and the way it will actually be used.

Buick 80 Series offerings span several tire series, including Firestone Classic Bias Ply, Lester Classic Bias Ply, Firestone Balloon, Comp H, Silvertown Classic Bias Ply, Firestone Classic Military, Transport Highway, Super Transport, Traxion, Super Traxion, Military NDT, Tornel Classic Truck, and Traction Mileage. The main distinction is between passenger-car restoration tires and heavier military or truck-style patterns intended for a different appearance and service profile.

For most Buick 80 Series passenger-car restorations, the classic bias-ply and balloon-style lines are the natural starting point. Military, highway, and traction-lug series can share the same numeric size but bring a much different tread character and use case, so they should be chosen only when that look or duty style is genuinely appropriate.

A Buick 80 Series should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, and petroleum contamination. Bias-ply tires on pre-war cars benefit from clean floors, stable inflation, and reduced long-term weight loading whenever the car will sit for extended periods.

In practice, that means checking inflation before storage, moving the Buick 80 Series periodically to avoid flat spotting, or supporting the car in a way that reduces sustained load if it will remain parked for a season. Tire covers and a clean, climate-stable garage do more for long-term preservation than cosmetic dressings.

Tires on a Buick 80 Series should be inspected before every drive and given a more thorough inspection several times each season, even if the car only covers short distances. On a pre-war bias-ply application, visible condition matters, but so do age, sidewall stiffness, tube health, bead condition, and any irregular wear caused by alignment or suspension issues.

A quick walkaround is not enough on a collector car that sits more than it drives. For a Buick 80 Series, look for cracking, weathering, tread separation signs, low pressure, and valve stem issues, and schedule specialist inspection sooner if the car has been dormant for a long period or has unknown tire age.

A Buick 80 Series tire should be replaced when age, cracking, hardening, impact damage, chronic air loss, or structural concerns appear, even if tread depth still looks substantial. Collector tires often age out long before they wear out, and that is especially true on pre-war cars that see low mileage and long storage intervals.

Tread alone can be misleading on a Buick 80 Series because the car may spend most of its life at shows, tours, or occasional local drives. Any tire of uncertain age deserves careful scrutiny, and an older period tire should be evaluated conservatively if there is any plan to use the car for more than static display.

Buick 80 Series originally used the year-specific numeric sizes shown here, but the available replacement offerings span more than one series family, including classic bias-ply and balloon-type lines in the earlier sizes. Because the model changed sizes repeatedly from 1931 through 1940, the correct answer depends first on the exact year and then on the wheel diameter actually fitted to the car.

For restoration work, the right path is to match the year, the wheel size, and the appearance target together rather than treating all Buick 80 Series cars as one uniform fitment. Factory literature, surviving original cars, and marque-club references remain the best way to refine the final choice once the basic size has been identified.

Correct tire fitment can affect both judging results and the overall impression of a Buick 80 Series restoration. Size, sidewall treatment, and tread style all influence whether the car presents as an authentically restored senior pre-war Buick or as a car wearing a merely usable replacement.

Judges and knowledgeable enthusiasts often notice stance and sidewall details immediately, even before they study smaller trim points. On a Buick 80 Series, using the proper year-range size and an era-appropriate sidewall style helps the car sit correctly, look right in profile, and align more closely with period expectations from marque clubs and concours standards.

Buick 80 Series restoration choices here include blackwall, wide whitewall, and in one 700-18 application, double-whitewall. Any of those styles can be visually appropriate depending on the exact year, the level of formality in the restoration, and whether the goal is a restrained touring look or a more dressed presentation.

The key is consistency with the era and character of the specific Buick 80 Series being restored. A more formal car may suit a whitewall treatment, while a simpler or more utilitarian presentation may call for blackwalls, so period photographs and marque-specific judging references are useful when the final appearance matters as much as the fit.

A Buick 80 Series can be driven on public roads with properly selected, properly fitted bias-ply tires in sound condition, but safety depends on far more than tread depth. Tire age, inflation, wheel condition, brake performance, steering integrity, and overall chassis health all matter on a large pre-war automobile.

The sensible approach is to treat road use as a full-vehicle readiness question rather than a tire-only decision. Even with fresh tires, a Buick 80 Series should be driven conservatively until its mechanical condition, alignment, and straight-line stability have been checked and the driver is comfortable with the behavior of vintage bias-ply construction.

Before driving a Buick 80 Series, check tire pressure, visible sidewall condition, valve stems, wheel security, and any signs of flat spotting or age cracking. On a pre-war car, it is equally important to confirm braking response, steering play, suspension condition, and whether the tire size on the car matches the wheel diameter it is mounted on.

That pre-drive routine helps catch the problems most likely to appear on lightly used collector cars. A Buick 80 Series that has been parked for weeks or months deserves extra caution, including a short low-speed test, because old fuel, dormant brakes, and underinflated bias-ply tires can all change how the car behaves once it starts moving.

A Buick 80 Series on period-style bias-ply tires should be driven at moderate, conservative speeds that respect both the tire design and the overall capabilities of a pre-war chassis. Even when the tires are fresh, the car’s steering, brakes, suspension geometry, and road manners belong to an earlier motoring era than modern traffic.

That means smooth inputs and a generous margin of safety matter more than trying to keep up with contemporary highway pace. A well-sorted Buick 80 Series can be enjoyable on secondary roads, tours, and local drives, but sustained high-speed use is not the mission profile for a restored pre-war car on vintage-style bias-ply tires.