The 1928 Graham 10 Series comes from an era when American cars were rapidly becoming more capable, more refined, and more dependent on proper tire fitment for both appearance and road manners. For owners of this exact Graham, tire selection centers on two period-style bias-ply sizes, 29X5.00 and 500-19, both tied to a 19-inch wheel setup. That makes the real decision less about modernizing and more about understanding which size format matches the car, along with the tire series and product style available in that fitment. For a restoration-minded owner, wheel confirmation and a careful look at the car's current setup come first.
Which Tire Size Is Right for The 1928 Graham 10 Series
The 1928 Graham 10 Series uses two primary tire sizes, and both are bias-ply fitments associated with a 19-inch wheel setup. Because both sizes appear on the covered 6 Cyl. configuration, the first step is confirming which size format is already on the car and checking the wheel dimensions before choosing between period-style replacement options.
29X5.00 is an antique diameter-by-section size, meaning the first number reflects an approximate overall tire diameter of 29 inches and the second number reflects an approximate 5-inch section width. It is a bias-ply fitment that suits the pre-war style and driving character expected of a 1928 Graham 10 Series. This format is especially relevant to owners trying to stay close to an early tire presentation rather than moving to later sizing conventions. It is worth checking the actual wheel and the car's existing tire markings so the selected size matches the setup already in place.
500-19 is a numeric bias-ply size in which the 500 designation refers to a nominal 5.00-inch section width and the 19 identifies the rim diameter in inches. On a 1928 Graham 10 Series, this size offers a more familiar vintage numeric format while keeping the traditional bias-ply construction appropriate to the vehicle's era. Available choices in 500-19 include Excelsior and Firestone products, with blackwall styling and tire series such as Comp H and Dirt Track. It makes sense to evaluate this size carefully if the car already wears 19-inch wheels and uses the later numeric size convention.
Tire fitment is straightforward here because the covered 1928 Graham 10 Series sub-model shares the same two bias-ply size formats. Even so, checking the exact sub-model and the wheels currently on the car still matters, especially on an older vehicle that may have seen changes over time.
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1928 Graham 10 Series 6 Cyl.
The 1928 Graham 10 Series 6 Cyl. uses the same pair of primary bias-ply fitments, 29X5.00 and 500-19. That means tire selection comes down to matching the size convention already used on the car, confirming the 19-inch wheel setup, and choosing the product style that best suits the vehicle's appearance and intended use.
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 1928 Graham 10 Series Tires for Sale
Available 500-19 choices for the 1928 Graham 10 Series include Excelsior and Firestone blackwall bias-ply tires in different series. The product grid is useful for comparing period-style construction, rim-width specifications, load information where stated, and whether the tire is aimed at general vintage use or a more specialized application.
Owners of a 1928 Graham 10 Series usually need clear answers on tire size, 19-inch rim fitment, period-style bias-ply choices, restoration appearance, and the checks worth making before putting an older car back on the road.
Tire Size & Fitment
What tire size fits a 1928 Graham 10 Series?
The 1928 Graham 10 Series uses two primary bias-ply tire sizes: 29X5.00 and 500-19. The covered 1928 Graham 10 Series 6 Cyl. uses those same two fitments, so either size can be relevant depending on the wheel and tire setup already on the car.
The practical step is to confirm what is actually mounted now, because these two sizes use different vintage sizing formats even though they relate to the same period of vehicle design. Checking the sidewall markings, wheel diameter, and wheel width helps prevent choosing a tire that suits the era but not the car's present configuration.
What size rim does a 1928 Graham 10 Series use?
The 1928 Graham 10 Series uses a 19-inch rim diameter. That rim diameter is directly reflected in the 500-19 size, while 29X5.00 uses an older diameter-by-section format that does not state the rim size in the same way on the sidewall.
That difference in marking style is one reason old-car tire selection can be confusing. Before choosing a replacement, inspect the wheel itself and confirm the width as well as the diameter, since a vintage car may have been changed at some point and tire choice should match the actual wheel on the vehicle, not assumptions based on age alone.
Does the 1928 Graham 10 Series 6 Cyl. use the same tire size?
Yes. The covered 1928 Graham 10 Series 6 Cyl. uses the same two primary tire sizes associated with this model core: 29X5.00 and 500-19, both in bias-ply construction. That makes fitment simpler than on vehicles where one sub-model uses a completely different wheel and tire package.
Even with shared fitment, it still helps to verify which size convention your car is already set up for. On a restoration or long-stored vehicle, sidewall markings, wheel dimensions, and any previous owner changes can influence which of the two period-style sizes is the better match for the car as it sits today.
Choosing the Right Tire
What should I consider when choosing a 500-19 tire for a 1928 Graham 10 Series?
Start with the basics: the tire must be the correct 500-19 size, must suit a 19-inch rim, and should retain the bias-ply construction appropriate to this Graham's era. From there, compare the available tire series, blackwall presentation, rim-width specifications, weight, and any stated load information.
The right choice depends on how the car will be used and presented. A restoration-minded owner may focus on traditional appearance, while another owner may be more interested in a specialized product style such as a ribbed front or a performance-oriented vintage application. Matching the tire to the wheel and intended use matters as much as matching the size.
What sidewall styles are available for 1928 Graham 10 Series tires?
The available 500-19 products for the 1928 Graham 10 Series are offered in blackwall form. That keeps the visual presentation simple and traditional, which often suits late-1920s cars well without introducing later sidewall treatments that can change the character of the vehicle's appearance.
Sidewall style should still be treated as an appearance decision rather than proof of exact originality. If the goal is a restoration-oriented look, compare the sidewall presentation with period photos, marque references, and the overall finish of the car so the tires support the vehicle's era without overpowering it visually.
What brands offer tires for the 1928 Graham 10 Series?
Available 500-19 tires for the 1928 Graham 10 Series come from Excelsior and Firestone. Those choices give owners more than one path within the proper vintage size, and they also introduce differences in tire series and product character rather than simply repeating the same tire under different branding.
Brand choice should be considered alongside size, construction, rim-width compatibility, and intended use. One owner may prefer a general period-style tire presentation, while another may be comparing a more specialized ribbed front or performance-oriented vintage product. The brand name matters, but the overall fitment and application matter more.
Restoration & Appearance
Which tire should I choose for a period-style 1928 Graham 10 Series?
A period-style starting point for a 1928 Graham 10 Series is one of the two primary bias-ply sizes used on the car: 29X5.00 or 500-19. Staying within those original-era size formats helps preserve the vehicle's visual proportions and the traditional look expected on a late-1920s American automobile.
The better choice depends on the wheels and tire convention already in use on the car. Owners pursuing a highly exact restoration should compare current fitment with marque references, photographs, or restoration documentation, while owners focused on a faithful roadgoing presentation can concentrate on proper size, blackwall appearance, and wheel compatibility.
Does correct tire fitment matter for a 1928 Graham 10 Series restoration?
Yes, correct tire fitment matters on a 1928 Graham 10 Series because the tire has a large effect on stance, wheel fill, and the overall visual balance of the car. Using one of the proper bias-ply size formats, rather than a loosely chosen substitute, helps keep the restoration anchored to the vehicle's period character.
Fitment also affects how the restoration functions on the road. A tire that matches the wheel properly is easier to evaluate for clearance and drivability, while a mismatched size can complicate steering feel or appearance. On an older car, taking time to verify the wheel dimensions is part of getting the restoration details right.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1928 Graham 10 Series?
Yes. Even though the 1928 Graham 10 Series uses period bias-ply fitments, later changes can still alter what works on the car. Wheel swaps, non-original rim widths, brake work, suspension repairs, body adjustments, or steering-component changes can all influence how a 29X5.00 or 500-19 tire sits and clears.
That is especially important with long-restored or repeatedly serviced collector cars. A close look at wheel diameter, wheel width, and available clearance around the fenders and steering components is worth doing before replacement tires are chosen. The older the vehicle, the less wise it is to assume every surviving example remains exactly as originally configured.
What should I inspect before driving a 1928 Graham 10 Series on new tires?
Before road use, inspect the wheels, valve hardware, mounting condition, and overall clearance after the new tires are installed. On the tires themselves, look for proper seating, stable air pressure, and any immediate signs of rubbing or interference during steering movement and slow-speed rolling.
The car also deserves a broader safety check because tire behavior depends on the vehicle around it. Steering play, worn suspension parts, loose wheel hardware, and poorly aligned components can make a correctly sized tire feel wrong in service. A cautious test drive and reinspection after the first miles are smart steps on any pre-war car.
How should 500-19 tires on a collector 1928 Graham 10 Series be maintained?
500-19 tires on a collector 1928 Graham 10 Series should be maintained with regular pressure checks, visual inspections, and attention to age-related condition as much as tread wear. Because collector cars often see limited mileage, sidewall cracking, flat spotting, air loss, or long periods of inactivity can matter more than miles driven.
Storage conditions also influence tire life on an older vehicle. Keeping the car away from prolonged sunlight, heat, moisture, and ozone sources helps preserve the rubber, and moving the car occasionally can reduce stress from sitting in one spot. A vintage car benefits from scheduled inspection even when it is not used often.
