1950 Buick 79 Series Tires

The 1950 Buick 79 Series uses an 820-15 tire size as its primary fitment. This is a bias-ply size mounted on a 15-inch rim, and the covered 8 Cyl. sub-model uses the same size.

That makes the first step fairly simple: confirm that the Buick still has 15-inch wheels and then choose within the 820-15 category. Once the wheel setup is verified, the real comparison becomes sidewall style, tire series, brand, and whether to stay with a traditional bias-ply tire or consider one of the radial-equivalent alternatives.

The 1950 Buick 79 Series uses a 15-inch rim with its primary 820-15 tire fitment. Product offerings in this size commonly pair the tire with rim-width ranges such as 6.00 to 6.50 inches, while some specialty versions allow wider wheel widths.

Wheel diameter should be confirmed before anything else, especially on an older car that may have seen replacement wheels over the years. If the Buick has non-original wheels, measure both diameter and width at the wheel itself so the selected tire matches the actual setup instead of only the original fitment standard.

820-15 is a numeric bias-ply size. The 820 portion refers to a nominal section width of about 8.20 inches, and the 15 identifies the rim diameter in inches.

That older sizing system is very different from modern metric radial sizing, so it helps to read it as both a size and a construction clue. On a 1950 Buick 79 Series, 820-15 points you toward a traditional period-style tire category, and any move to a metric radial equivalent should be checked carefully against the Buick's wheel width and available clearance.

For the 1950 Buick 79 Series, 820-15 is the primary bias-ply tire size. The available product range in the main fitment is built around bias-ply construction, which matches the older sizing convention used on the car.

That matters because bias-ply and radial tires can change both appearance and road feel. Buyers trying to preserve a traditional stance often stay with bias-ply construction, while buyers considering more modern construction should compare the available radial-equivalent sizes and verify wheel width, tire dimensions, and vehicle clearance before making a change.

Radial equivalents for 820-15 include 235R15 as an 80-series metric radial, P235/75R15 as a 75-series P-metric radial, P255/70R15 as a 70-series P-metric radial, and 820R15 as a bias-look radial equivalent.

Those options give the 1950 Buick 79 Series several ways to move from a traditional bias-ply size into radial construction without using the same sizing format. A 6-8 inch rim-width range is associated with the equivalents, but wheel compatibility, overall dimensions, and steering or fender clearance still need to be checked on the actual car before conversion.

An 820R15 bias-look radial can be considered as a radial equivalent for the 1950 Buick 79 Series. Its role is to offer radial construction while keeping a more traditional visual presentation than a modern metric sidewall format.

That makes it appealing for owners who want to stay closer to the Buick's vintage appearance without remaining in a full bias-ply tire. Even so, it should still be treated as an alternative rather than an automatic replacement, so wheel width, clearance, and the car's actual wheel setup should be checked before making the switch.

Start with the correct primary size, which is 820-15, and confirm the Buick's 15-inch wheel setup before comparing individual tires. From there, the main differences are construction type, sidewall style, tire series, brand, and whether the tire is aimed at traditional road use or a more specialized purpose.

A large postwar Buick can look very different on blackwalls than it does on narrow or wide whitewalls, so appearance matters as much as fitment. It also helps to compare rim-width specifications, load figures where listed, and intended use so the tire choice matches both the car's presentation and how it will actually be driven.

The 1950 Buick 79 Series has 820-15 tire options in blackwall, narrow whitewall, and wide whitewall styles. That gives the car a broad range of visual choices, from a more understated look to the fuller whitewall presentation often associated with big American cars of the period.

Sidewall style should be chosen with the Buick's restoration direction and wheel appearance in mind. A blackwall can suit a simpler or more understated presentation, while whitewalls create a more formal period-style look, but the exact width and treatment should be selected carefully rather than assumed to be correct for every restoration approach.

Available 820-15 tires for the 1950 Buick 79 Series come from BFGoodrich, Firestone, US Royal, Universal Vintage Tire, and Avon. Those brands appear across several classic bias-ply series and sidewall treatments in the primary fitment size.

Brand choice is only one part of the decision. It is more useful to compare each tire by its size, construction, series, sidewall style, rim-width compatibility, and intended use, especially because some 820-15 offerings are restoration-oriented while others fall into more specialized performance or racing-style categories.

A period-style 1950 Buick 79 Series usually starts with the correct 820-15 size in bias-ply construction. That keeps the tire format aligned with the Buick's era and allows the visual choice to shift toward blackwall, narrow whitewall, or wide whitewall depending on the presentation you want.

For a restoration-oriented car, appearance should be matched to the specific look being pursued rather than treated generically. If exact originality matters, compare tire details against marque-club guidance, build records, or period photography, since the correct size alone does not automatically establish the right brand or whitewall treatment.

Tire construction affects both the look and the stance of a restored 1950 Buick 79 Series. A bias-ply tire preserves the older sizing format and traditional visual character, while a radial equivalent can change the presentation even when chosen with a vintage-friendly sidewall style.

That difference is why construction should be considered part of the restoration plan, not just a driving decision. An 820R15 bias-look radial can help retain a more traditional appearance than a modern metric sidewall, but owners focused on an era-appropriate look often begin by comparing bias-ply options in the original 820-15 format.

Modifications can absolutely affect tire fitment on a 1950 Buick 79 Series. Even though 820-15 is the primary size, aftermarket wheels, altered wheel width, suspension changes, lowering, or body modifications can change the space available for the tire.

A collector Buick that still uses its original-style wheel setup is usually much easier to size correctly than one that has been changed over the years. Check actual wheel diameter and width first, then inspect steering clearance, fender clearance, and suspension condition before selecting either a bias-ply tire or a radial equivalent.

Before driving a 1950 Buick 79 Series on new tires, inspect the wheels for correct diameter and condition, confirm that the tires are seated properly, and verify inflation pressure. It also makes sense to look over suspension and steering components so the new tires are not asked to compensate for worn mechanical parts.

A short test drive should be preceded by a visual check for adequate fender and steering clearance at full turn. After the first miles, recheck pressure and look for any signs of rubbing, unusual wear, or air loss, since older collector cars sometimes reveal fitment or mechanical issues only once they are back in motion.

820-15 tires on a collector 1950 Buick 79 Series should be inspected regularly for pressure loss, tread wear, sidewall cracking, bulges, and cuts. Low-use vintage cars need these checks even when they are driven only occasionally, because time and storage conditions can affect tire condition as much as mileage.

Proper storage also matters. Keeping the Buick away from prolonged sunlight, excess heat, standing moisture, and ozone sources can help protect the tires between drives, and periodic visual inspections remain important whether the car uses traditional bias-ply tires or a radial equivalent in a similar vintage size range.