Graham 27 Tires

The Graham 27 has two listed tire sizes for 1929: 31X6.20 and 650-19. The 650-19 size is a numeric bias-ply size built for a 19-inch rim, while 31X6.20 is an antique diameter-by-section size where the first number refers to overall tire diameter rather than wheel diameter.

That means the correct choice depends on the exact wheels and configuration on the car, not just the model name and year. Start by checking the wheel diameter on the car, then compare that with any original paperwork, surviving tire markings, or guidance from a Graham specialist before settling on one of the two listed sizes.

On a Graham 27, 31X6.20 is an antique-style size code. The 31 refers to the tire's approximate outside diameter in inches, and 6.20 refers to the nominal section width, so the code describes the tire's overall dimensions rather than directly stating the wheel diameter.

That distinction matters because modern buyers often assume the first number is the rim size, and here it is not. If your Graham 27 still carries early-style wheels or has been restored over many decades, confirm the actual wheel diameter before choosing 31X6.20 and remember that this type of bias-ply fitment requires an inner tube.

A 1929 Graham 27 can show two listed tire sizes because the model year overlaps two different sizing conventions: antique diameter-by-section sizing and numeric balloon-era bias-ply sizing. That does not mean both sizes belong on every car; it means cars sold under the same model designation may need verification by wheel and configuration.

The practical step is to inspect the car itself before selecting a tire. Look for surviving sidewall markings, measure the wheel, and compare the current wheel setup with restoration records so you can determine whether your Graham 27 belongs with the 31X6.20 style fitment or the 650-19 fitment.

Yes, the listed Graham 27 tires fall into vintage bias-ply sizing types that use inner tubes. The available 650-19 products are bias-ply tires, and the antique-style 31X6.20 fitment also belongs to the tube-type era rather than modern tubeless construction.

Tube fitment is an important part of proper installation on collector wheels, especially on a car of this age where original rim design and bead profile differ from later tubeless applications. When preparing a Graham 27 for service, inspect the wheels carefully and use the correct tube and flap arrangement where required for the specific wheel design.

The first step on a 1929 Graham 27 is to determine whether the car is set up for 650-19 tires on 19-inch rims or for the antique-style 31X6.20 fitment. Since both sizes are associated with the same model year, the answer comes from the car's actual wheel diameter, surviving tire markings, and restoration history.

Use the year listing as a starting point, then verify the wheel itself before making a final choice. If the car has passed through multiple restorations, do not assume the wheels presently on it are the same as those fitted decades ago; measure carefully and compare what you find with period references for Graham 27 models.

For the Graham 27, the available 650-19 products include both blackwall and wide whitewall sidewall styles. Those choices appear across several bias-ply offerings from Firestone and Lester, giving owners the option to match a more restrained appearance or a brighter late-1920s presentation.

Sidewall style should follow the look and restoration goal of the particular car. A blackwall tire usually suits a more understated or utilitarian presentation, while a wide whitewall can better complement a period-correct upscale finish on a late-1920s American automobile like the Graham 27.

The currently listed Graham 27 tire products in 650-19 come from Firestone, Lester, and Excelsior. Within those brands, the available series include Firestone Classic Bias Ply, Firestone Balloon, Lester Classic Bias Ply, and Excelsior Comp H.

Brand choice usually comes down to the look you want, the series style that best suits the car, and the wheel width range where that information is listed. Once the correct size is established, compare the available sidewall treatments and period character of each series to decide which Graham 27 tire best suits your restoration or driving plan.

The Graham 27 products in 650-19 include several distinct series: Firestone Classic Bias Ply, Firestone Balloon, Lester Classic Bias Ply, and Excelsior Comp H. All are bias-ply tires, but the series names reflect different period styles and presentation cues, with Balloon especially pointing to the late-1920s balloon-tire era.

That matters because a Graham 27 restoration is often judged as much by visual correctness as by basic size alone. After you confirm whether your car needs 650-19 rather than 31X6.20, compare the series by sidewall style, wheel width compatibility where stated, and the overall period look you want the finished car to carry.

A Graham 27 should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, electric motors, and chemicals. Bias-ply collector tires benefit from stable temperatures and from being kept clean and properly inflated during storage rather than left underinflated on the car.

If the Graham 27 will sit for long periods, move it occasionally or support it in a way that reduces long-term flat spotting and sidewall stress. Good storage habits preserve both appearance and structure, which is especially important on a low-use vintage car where tire age often matters more than tread wear.

Tires on a Graham 27 should be inspected before every drive and more thoroughly at regular intervals even if the car sees very little mileage. On a vintage bias-ply setup, you are looking for sidewall cracking, tread separation, impact damage, tube-related issues, air loss, and any uneven wear that could point to wheel or suspension problems.

A car that spends most of its life in the garage can still develop tire problems simply from age and storage conditions. Regular inspection is the easiest way to catch issues early, and it is wise to have an experienced vintage-tire or restoration specialist evaluate the tires periodically if the Graham 27 is driven on public roads.

A Graham 27 tire should be replaced when age, cracking, hardening, bulges, separation, or repeated air-loss issues appear, even if the tread still looks deep. Collector-car tires often age out long before they wear out, particularly on low-mileage cars that spend years parked between outings.

Do not judge an old tire only by appearance from a few feet away. On a pre-war car like the Graham 27, periodic age-based assessment is just as important as tread depth, and any tire showing structural deterioration should be removed from service before the car returns to road, tour, or show-duty driving.

The Graham 27 is associated here with two period-appropriate size types for 1929: 31X6.20 and 650-19. The available replacement products for 650-19 span several bias-ply series, including Firestone Classic Bias Ply, Firestone Balloon, Lester Classic Bias Ply, and Excelsior Comp H, which reflects the variety of period-style replacement approaches rather than a single universal answer.

For an exact restoration, the right path is to match the specific car rather than the model name alone. Original sales literature, restoration records, surviving wheel equipment, and marque-club guidance will help determine which size and visual style best fit your Graham 27 as it would have appeared in period.

Yes, correct tire fitment can affect both the judged authenticity and the overall impression of a Graham 27. Judges and knowledgeable enthusiasts notice whether the size, sidewall treatment, and overall tire profile suit the period and the specific configuration of the car.

That does not always mean only one brand or one visual treatment is acceptable, but it does mean the tire should look appropriate to the era and fit the wheel correctly. If the car is being restored for concours use, compare your chosen Graham 27 tire against marque-club standards and period imagery before final installation.

The listed Graham 27 options in 650-19 include both blackwall and wide whitewall styles, and either can suit a late-1920s restoration depending on the exact presentation of the car. Blackwall gives a more restrained period look, while wide whitewall creates a more formal and visually prominent appearance.

The right choice depends on how your particular Graham 27 was equipped and how you want it to read in restored form. Period photos, trim level, body style, and club guidance are the best ways to decide whether a blackwall or wide whitewall treatment is the more authentic match for your car.

A properly fitted, correctly installed vintage-style bias-ply tire can be suitable for limited public-road use on a Graham 27 when the car itself is mechanically sound. Safety depends on more than tread alone: wheel condition, tube fitment, inflation, brake performance, steering integrity, and the age of the tires all matter on a late-1920s automobile.

Road use should match the capabilities of the car and the nature of vintage tire construction. A Graham 27 is best driven conservatively, with smooth inputs and regular inspections, and any car returning to use after a long storage period should be checked thoroughly before it is asked to share modern traffic.

Before driving a Graham 27, check tire inflation, sidewall condition, tread condition, valve stems, wheel security, and any signs of tube-related air loss. On a car of this age, you should also confirm that the selected tire size matches the wheel diameter and that there is no cracking, bulging, or separation that would make the tire unfit for service.

The tire check should be part of a broader pre-drive routine that includes brakes, steering, wheel bearings, and suspension. A Graham 27 rewards careful preparation, and a few minutes spent inspecting the tires and chassis can prevent the sort of roadside problem that is much harder to solve with a pre-war car.

A Graham 27 on vintage-style bias-ply tires should be driven at moderate, conservative speeds that respect both the age of the car and the behavior of period tire construction. Even with new reproduction tires, the car's braking, steering, suspension design, and overall vintage character set the practical limit more than modern traffic expectations do.

Smooth touring is the right mindset for a Graham 27, not sustained high-speed driving. Keep speeds appropriate to local conditions, avoid abrupt lane changes and heavy braking, and remember that a car designed around late-1920s tires and chassis dynamics will always be happiest when driven with margin and mechanical sympathy.