Auburn 44 Series Tires
Auburn 44 Series automobiles came from a lively period in the American car industry, when manufacturers were moving quickly from earlier touring-car conventions toward more modern late-1920s design and road manners. The 1926 Auburn 44 Series sits squarely in that transition, which makes tire selection more involved than it first appears for a restorer or collector. The key complication here is that the same 1926 Auburn 44 Series is associated with two different size conventions, including an older outside-diameter style and a more modern rim-diameter-based numeric size. Before choosing a tire, the first thing to verify on the actual car is which wheel and rim diameter it carries.
Auburn 44 Series Tire Size Guide
Auburn 44 Series tire fitment spans 2 distinct sizes across the 1926 to 1926 production range, and the most important point is that both sizes do not describe the wheel in the same way. The 30X5.25 listing uses the antique diameter-by-section format, where the leading number is the tire's outside diameter rather than the wheel diameter, while 5.25-20 uses the later numeric convention that includes the rim diameter in the size itself. That means a 1926 Auburn 44 Series owner needs to identify the actual wheel on the car before selecting a tire.
30X5.25 is one of the two listed sizes for the 1926 Auburn 44 Series and represents an earlier-style sizing convention used during the industry's transition years. In this format, 30 is the tire's overall outside diameter in inches and 5.25 is the nominal section width in inches, while the wheel diameter is not stated in the size code itself. Choose this size only if the car is fitted with the matching earlier wheel setup, and verify the actual rim diameter on the wheel before proceeding.
5.25-20 is also listed for the 1926 Auburn 44 Series and reflects the newer numeric sizing system that became common in the later 1920s. Here, 5.25 is the nominal section width in inches and 20 is the rim diameter in inches. Choose this size if the car carries 20-inch wheels, and compare the installed wheels against period references or restoration records before final selection.
Auburn 44 Series Tires by Year
The year listing for Auburn 44 Series breaks the fitment down by production year so you can match the tire size to the specific car rather than the model name alone. In 1926, more than one size is listed, reflecting a split between two different sizing conventions that should be checked against the wheels actually fitted to the car. The leading number in 30X5.25 is the tire's outside diameter, not the wheel size, so the rim itself needs to be confirmed before choosing a tire.
1926 Auburn 44 Series
- 30X5.25
- 5.25-20
Frequently Asked Questions
The Auburn 44 Series FAQ focuses on the unusual 1926 two-size split, the difference between antique and numeric size markings, and the practical checks that matter before fitting tires to a transitional late-1920s car.
Size Basics & Fitment
The Auburn 44 Series is listed with two tire sizes for 1926: 30X5.25 and 5.25-20. Those sizes are not interchangeable labels for the same thing. The 30X5.25 marking is an antique diameter-by-section size in which 30 refers to overall tire diameter and 5.25 refers to section width, while 5.25-20 is a numeric size in which 20 is the wheel diameter.
That distinction matters because an Auburn 44 Series owner cannot choose by section width alone. The correct tire depends on which wheel is on the car, and the antique-style size does not reveal rim diameter in the code itself. Start by measuring the wheel or checking trusted vehicle paperwork, then match the tire to the actual rim rather than assuming every 1926 Auburn 44 Series used the same setup.
On an Auburn 44 Series, 30X5.25 is an older size format that describes the tire by outside diameter and section width. The 30 means the tire is approximately 30 inches tall overall, and the 5.25 means the tire's nominal section width is 5.25 inches. It does not tell you the wheel diameter directly, which is why modern buyers often misread it as a rim size.
That makes 30X5.25 a size that needs extra checking before selection. If your Auburn 44 Series carries wheels intended for the later 5.25-20 size, a 30X5.25 tire would be the wrong starting point even though the section width appears similar. For a restoration, this is one of the key markings to verify against the wheels currently on the car and any surviving historical records tied to that particular automobile.
A 1926 Auburn 44 Series has 2 tire sizes listed because the model falls into a period when American cars could appear with either an earlier outside-diameter style marking or a later rim-diameter-based numeric size. In this case, the listed sizes are 30X5.25 and 5.25-20. The split is not just wording; it reflects two different fitment conventions that need to be separated carefully.
For an owner, the practical takeaway is that year alone is not enough. A 1926 Auburn 44 Series should be checked by the wheels actually fitted to the car and by any restoration history that explains whether the chassis remains in its original configuration. That extra step helps avoid choosing a tire by appearance or familiar width markings when the wheel itself may call for the other listed size.
The Auburn 44 Series uses a clearly identified 20-inch rim when fitted with the 5.25-20 size. The 30X5.25 size does not reveal its rim diameter in the marking, because that antique format uses overall tire diameter and section width instead of wheel diameter. As a result, the Auburn 44 Series cannot be assigned one wheel size from the size code alone when both markings appear for 1926.
The safest way to settle rim diameter on an Auburn 44 Series is to inspect the wheels on the actual car. Measuring the bead seat area, checking wheel stampings, and comparing against period references will tell you whether the car belongs with the 20-inch numeric size or with the earlier-style 30X5.25 fitment. That step is more important here than simply matching a size name from memory.
Buying the Right Tire
To confirm the correct tire size for a 1926 Auburn 44 Series, begin with the wheels currently fitted to the car. If the wheel is a 20-inch rim, that points toward the 5.25-20 size. If the car carries the earlier setup associated with 30X5.25, the size code will describe overall tire diameter and section width rather than naming the rim directly.
A careful buyer should also compare the car against any surviving factory literature, restoration notes, judging references, or marque-club guidance tied to that specific Auburn 44 Series. Transitional cars are often restored over many decades, and wheels can be changed along the way. Matching the tire to the actual wheel and the intended restoration standard will give a better result than relying on model year alone.
Made-to-order Auburn 44 Series tires are specialty products built to fill a narrow collector-vehicle need rather than a modern mass-market application. That usually applies to uncommon historic sizes and helps explain why certain vintage patterns and constructions remain available at all. The phrase describes the production status of the tire rather than changing the size, fitment, or period suitability of the tire itself.
For an Auburn 44 Series owner, the important point is to settle the exact size and wheel configuration before choosing among specialty offerings. Once the fitment question is clear, made-to-order status simply becomes part of selecting the right period-style tire for the car's intended use, whether the goal is preservation, concours presentation, or careful touring with equipment that matches the era.
Auburn 44 Series buyers should expect the main differences between available tire series to center on period construction style, tread design, sidewall appearance, and how closely the tire matches a late-1920s restoration goal. On a car that straddles two size conventions, those differences matter because a tire can be historically styled yet still be wrong for the wheel on the car. The right series starts with the correct size, not the other way around.
That means a restorer should decide first whether the Auburn 44 Series is being returned to an earlier-style fitment or to the later 20-inch numeric setup. After that, series choice becomes a matter of authenticity, driving expectations, and visual presentation. A touring car built for display and occasional road use may call for different priorities than one prepared for judged competition, even when both use a size that belongs to 1926.
Maintenance & Longevity
An Auburn 44 Series should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, solvents, and standing moisture. Tire pressure should be checked before storage so the car is not left resting on underinflated casings. On a low-use collector car, clean floors and stable temperatures do more for tire life than frequent cosmetic dressing.
If the Auburn 44 Series will sit for long periods, move it periodically or support it in a way that reduces long-term flat spotting and sidewall strain. Cars from the 1920s often place different loads on their tires than later vehicles, so idle storage can be harder on the casing than many owners expect. A little preventive care in the garage helps preserve both appearance and serviceability.
Tires on an Auburn 44 Series should be inspected before every drive and more thoroughly at regular intervals during the season. Look for sidewall cracking, tread separation, cuts, embedded debris, irregular wear, valve stem issues, and any sign that the tire has shifted or settled unevenly on the rim. A collector car that is driven infrequently can still develop age-related problems even when tread looks acceptable.
That routine matters especially on a 1926 automobile because the car may spend more time parked than moving, and long periods of inactivity can hide developing problems. A yearly inspection by a shop familiar with vintage tires is a sensible baseline for an Auburn 44 Series used on the road. If the car is shown, paraded, or transported often, checking after each event is a good habit.
Tires on an Auburn 44 Series should be replaced when age, cracking, hardening, cord exposure, sidewall damage, persistent air loss, or structural changes appear, even if the tread still looks deep. Collector tires often age out long before they wear out. A visually attractive old tire can still be unsuitable for service if the casing has deteriorated internally over time.
That is particularly important on a pre-war car because the consequences of a failure can be severe for fenders, wood components, and scarce original hardware. Any tire of uncertain age deserves close evaluation by a specialist, and that caution becomes even more important if an owner is considering an older period tire for actual road use. Replacing early is usually far less costly than repairing collateral damage after a failure.
Restoration & Authenticity
The Auburn 44 Series is associated here with two period-appropriate size markings for 1926: 30X5.25 and 5.25-20. That tells you the model sits in a transitional moment when more than one size convention was in use. It does not mean every surviving Auburn 44 Series left the factory in the same exact wheel-and-tire combination, particularly after decades of repairs, restoration work, and wheel changes.
For an accurate restoration, the best path is to compare the specific Auburn 44 Series against factory literature, period photos, surviving wheel details, and marque-club references. Authenticity depends on matching the individual car rather than selecting whichever listed size looks most familiar. On transitional 1920s cars, getting the wheel and tire relationship correct is often one of the details that separates a plausible restoration from a truly convincing one.
Correct tire fitment can absolutely affect how an Auburn 44 Series is viewed in both judging and the collector market. Tires influence stance, proportions, wheel appearance, and whether the car looks faithful to its period. On an automobile like the Auburn 44 Series, where two different size conventions appear for the same model year, judges and experienced buyers often notice when the wheel-and-tire combination does not match the car's restoration story.
That does not mean every car must be restored for concours use, but it does mean tire choice should support the owner's goal. A preservation-minded car, a touring car, and a nationally judged restoration may all make slightly different choices. Marque specialists and period reference material are the best standards for deciding which Auburn 44 Series fitment strengthens authenticity rather than raising questions.
The correct sidewall style for an Auburn 44 Series restoration depends on the standard being followed for that specific 1926 car and the tire line selected for it. Late-1920s American restorations can be sensitive to visual details such as blackwall versus white sidewall presentation, especially when the goal is to match period character closely. Sidewall appearance should never be chosen apart from the correct size and wheel arrangement.
A restorer should first establish whether the Auburn 44 Series belongs with the 30X5.25 setup or the 5.25-20 setup, then select a sidewall treatment that fits the intended era presentation of the finished car. Period photos, club judging guides, and marque experts are especially useful here. The right sidewall can complete the look of the car, but only after the fitment fundamentals are settled.
Safety & Road Use
A properly selected tire can be suitable for public-road use on an Auburn 44 Series when the tire matches the wheel, is in sound condition, and is fitted to a car that has also been mechanically prepared for driving. Tire safety on a 1926 automobile is never separate from brake condition, steering play, wheel integrity, and overall chassis health. A correct size alone does not make the car road-ready.
For practical use, treat the Auburn 44 Series as a specialty collector automobile rather than a modern traffic appliance. Shorter drives, conservative route planning, and regular inspection make more sense than sustained high-speed use. Before putting meaningful miles on the car, have the entire running gear evaluated so the tire choice works within a safe and realistic operating envelope for the vehicle's age.
Before driving an Auburn 44 Series, check inflation pressure, visible tire condition, valve stems, wheel fasteners, and whether each tire matches the wheel it is mounted on. Also inspect for sidewall cracking, shifting on the rim, cuts, and any sign of uneven stance that could suggest an underinflated tire or wheel issue. Because the Auburn 44 Series can appear with two very different size markings, confirming the wheel-and-tire relationship is especially important.
A sound pre-drive routine should also include brakes, steering response, fluid levels, and wheel bearing condition. Vintage cars often communicate developing problems subtly, and a tire issue may first show up as a pull, vibration, or wandering feel at low speed. Building a consistent inspection habit before each outing is one of the simplest ways to protect both the car and its occupants.
An Auburn 44 Series should be driven at conservative speeds that respect the age of the vehicle, the construction style of its tires, and the condition of the entire chassis. Even with correct tires fitted, a 1926 car was engineered for a very different road environment from today's highways. Tire choice, steering geometry, braking capability, and the age of mechanical components all point toward moderate operation rather than sustained fast travel.
In practice, the right speed for an Auburn 44 Series is the speed at which the car feels composed, the road surface is manageable, and the driver still has a generous safety margin for stopping and steering. That usually means favoring secondary roads, local touring, and event use over modern interstate pacing. If there is any doubt about the condition of the tires or wheels, slower use is the prudent choice.