1941 Buick 70 Roadmaster Tires

The 1941 Buick 70 Roadmaster uses a 700-15 tire size. This is a numeric bias-ply fitment built for a 15-inch wheel, and it is the primary size associated with the covered Roadmaster application.

That makes the first step fairly simple: confirm that the car still has the correct 15-inch wheels and has not been altered with a different wheel diameter. After that, the choice becomes more about tire style and purpose, such as wide whitewall versus blackwall appearance or selecting among traditional passenger-car and more utility-oriented bias-ply series in the same 700-15 size.

The 1941 Buick 70 Roadmaster uses a 15-inch rim with its 700-15 tire fitment. Product options in this size commonly pair with rim widths in the 5.00- to 5.50-inch range, which is useful when comparing replacement tires.

Wheel diameter is the non-negotiable part of the fitment, so it is worth verifying the actual wheels on the car before ordering tires. A collector Buick may have had wheel changes over the years, and even when the diameter matches, wheel width and overall tire clearance should still be checked before settling on a specific 700-15 product.

Yes. The covered 1941 Buick 70 Roadmaster 8 Cyl. application uses the same 700-15 bias-ply tire size. That keeps fitment consistent within the Roadmaster sub-model shown here rather than splitting it across multiple primary sizes.

Because the size stays the same, selection usually comes down to appearance and intended use instead of searching for a different fitment. It still helps to inspect the actual wheel setup and the car’s current stance, especially on older restorations, since replacement wheels, suspension work, or long-term storage can affect what makes sense within the correct 700-15 size.

Start with the correct 700-15 size, bias-ply construction, and 15-inch wheel diameter. From there, the most meaningful differences are sidewall style, tire series, rim-width compatibility, and whether the tire is aimed at a traditional passenger-car presentation or a more utility-oriented application.

A Roadmaster restored for prewar visual character may call for a wide whitewall, while a more understated or utilitarian look may point toward blackwall choices. It also helps to compare product details such as stated load figures where available, tire weight, and wheel-width suitability so the selected tire matches both the car’s appearance and the way it will actually be driven.

The available 700-15 tires for a 1941 Buick 70 Roadmaster include both blackwall and wide whitewall sidewall styles. That gives owners a clear visual choice within the correct size rather than forcing a change in fitment to achieve a different look.

Wide whitewalls suit many restoration-oriented prewar Buicks because they deliver a fuller, more formal period-style presentation. Blackwalls create a plainer appearance and may be preferred on cars built more for touring use or for owners who want a less dressy look. Either way, the sidewall decision should be made after the correct size, wheel diameter, and intended use are already settled.

The 1941 Buick 70 Roadmaster has 700-15 tire options from Firestone, BFGoodrich, and STA. Those choices appear across several series, including classic bias-ply passenger styles and more utility-oriented lines in the same overall size.

Brand alone should not be the only filter. It is smarter to compare how each option is configured, including sidewall treatment, rim-width specification, load information where stated, and the overall character of the tire series. On a large prewar Buick, appearance and intended use often matter just as much as the name on the sidewall when narrowing the final choice.

A period-style starting point for a 1941 Buick 70 Roadmaster is the correct 700-15 bias-ply size on a 15-inch rim. Staying with that construction preserves the prewar visual profile and keeps the car aligned with the kind of tire presentation expected on a large Buick of this era.

Within that fitment, the next decision is usually sidewall style and series character rather than changing size. A wide whitewall often supports a more formal restoration-oriented appearance, while a blackwall can look more restrained. When exact originality matters, compare the tire choice against vehicle-specific historical references or marque-club guidance rather than assuming any one sidewall treatment is automatically correct.

Tire construction has a visible effect on a restored 1941 Buick 70 Roadmaster because the car was built around a bias-ply fitment. A 700-15 bias-ply tire helps preserve the traditional shape and overall visual language associated with a substantial prewar sedan or touring car.

Appearance is not only about sidewall color or whitewall width; the construction itself influences how the tire looks on the wheel and under the fender. Owners aiming for a restoration-minded result usually keep the correct bias-ply size first, then choose between blackwall and wide whitewall treatments to match the car’s finish, trim level, and intended presentation.

Yes. Even though the primary fitment is 700-15 on a 15-inch wheel, modifications can change what works on a 1941 Buick 70 Roadmaster. Wheel swaps, altered wheel width, suspension changes, or body and brake updates can all affect fitment around the tire.

A Roadmaster that still looks stock may still have changed hardware underneath, so checking the actual wheel diameter and width is worth doing before choosing a tire. Steering clearance, fender clearance, and the condition of suspension components also matter, especially on a large prewar chassis where small changes in wheel setup can influence both appearance and drivability.

Before road use, inspect the wheels for damage or corrosion, confirm the tires are mounted in the correct 700-15 size, and make sure inflation is appropriate for the tire being used. It is also wise to check valve stems, balance, lug hardware, and whether the tires clear the fenders and steering components.

A prewar Buick should also be evaluated as a complete system rather than just a tire change. Brake condition, steering play, worn suspension parts, and old wheel bearings can all affect how the car behaves once fresh tires are installed. A short local test drive followed by a second inspection is a sensible way to catch rubbing, air loss, or hardware issues early.

Collector-car 700-15 tires should be checked regularly for pressure, tread condition, sidewall cracking, cuts, bulges, and signs of slow air loss. A 1941 Buick 70 Roadmaster often sees lower annual mileage, which makes age and storage conditions just as important as tread wear.

Long periods of sitting can be hard on tires, especially in spaces with heat, sunlight, moisture, or ozone exposure from electric motors and similar equipment. Rolling the car periodically, storing it on a clean surface, and inspecting the tires before each drive helps catch condition issues before they become road problems on a heavy prewar vehicle.