1927 Duesenberg Tire Fitment Guide

1927 Duesenberg vehicles in this guide use two tire sizes: 31X6.75 and 700-19, both in bias-ply construction. Both sizes are associated with the 1927 Duesenberg 8 Cyl., but 700-19 is the size with current product coverage shown here and it mounts on a 19-inch rim. For 700-19, listed rim width range is 3.75 to 4.00 inches on applicable products.

That means a 1927 Duesenberg owner should not assume that year and make alone are enough to choose a tire. Start by checking the tire size already on the car, then confirm the wheel diameter and any wheel markings before moving to a replacement. On a pre-war car, wheel changes over the decades are common, so the actual wheel on the vehicle matters as much as the cataloged year and model.

A 31X6.75 tire on a 1927 Duesenberg uses an antique diameter-by-section format. The first number, 31, refers to the tire's overall diameter in inches, while 6.75 refers to nominal section width. It is a bias-ply style size from the brass and pre-war era, where tire sizing conventions were different from later numeric and modern metric systems.

That older format is important because it tells you the tire is being identified by outside diameter and width rather than by a straightforward wheel-diameter code alone. If your Duesenberg carries this style size, treat it as a separate fitment family rather than trying to substitute a later coded size by guesswork. Pre-war restorations often depend on keeping the correct format as well as the correct dimensions.

A 700-19 tire on a 1927 Duesenberg is a numeric bias-ply size. The 7.00 indicates nominal section width in inches, shown without the decimal in common usage, and the 19 identifies the wheel diameter in inches. On the available products for this fitment, 700-19 mounts on a 19-inch rim and appears in traditional pre-war bias-ply construction.

This is one of the more familiar late-1920s tire codes, and it is the size with actual product choices available here from more than one brand. If your car uses 700-19, verify the wheel is truly a 19-inch application and check the rim width before selecting a tire. That simple step prevents confusion between a correct numeric size and an older diameter-by-section alternative used on the same model core.

The right choice for a 1927 Duesenberg depends first on which size your car actually uses, because 31X6.75 and 700-19 are different size conventions rather than interchangeable labels for the same tire. Both are bias-ply and both suit the pre-war character of the car, but 700-19 is the fitment with current product offerings shown here, while 31X6.75 reflects an earlier diameter-by-section format.

If your goal is a faithful restoration, match the size and format that belong to your car's wheel setup rather than choosing by appearance alone. If your car already wears 19-inch wheels and calls for 700-19, that size gives you brand and sidewall choices without stepping away from period-correct construction. On a significant car like a Duesenberg, confirming the existing wheel and tire markings is the smartest first move.

1927 Duesenberg tires in the available 700-19 fitment come in both blackwall and double-whitewall versions. Firestone offers blackwall and double-whitewall choices in that size, while Lester is represented in blackwall form. All of those offerings remain bias-ply, which keeps the overall look and construction in line with the period.

Sidewall style affects the car's presentation more than its fitment. A blackwall generally delivers a more restrained, formal pre-war appearance, while a double-whitewall gives a more dressy and visually prominent look that many luxury-car restorers favor. For show use, choose the sidewall treatment that matches the car's historical presentation, body style, and the standards of the events where the car will appear.

Firestone and Lester both offer tires for 1927 Duesenberg applications in the 700-19 size. Firestone appears in Firestone Balloon and Firestone Classic Bias Ply form, while Lester appears as a traditional classic bias-ply option. All of the listed choices for this fitment stay within the expected bias-ply construction for a car of this era.

That gives a 1927 Duesenberg owner a choice between long-established vintage tire names while staying within the correct general construction type for a late-1920s luxury automobile. The practical comparison usually comes down to the exact series you want, the sidewall appearance you prefer, and whether the listed rim-width and load information align with your wheel and intended use. Brand choice matters, but correct size and setup matter first.

For 1927 Duesenberg tires in the 700-19 size, applicable products list a rim width range of 3.75 to 4.00 inches on 19-inch rims. That is the only published rim-width range shown among the available fitments here. The 31X6.75 size should still be matched carefully to the wheel actually fitted to the car before any replacement is selected.

Rim width matters because even correct overall tire size can behave poorly if mounted on a wheel outside the intended range. Measure the wheel or verify its markings before deciding on a 700-19 tire, especially on an older car that may have had wheels changed during restoration or long-term ownership. On a pre-war chassis, small setup differences can influence both appearance and road feel.

The listed 1927 Duesenberg products do not carry tube-type or tubeless markings in the size field, so tube requirements should be confirmed from the actual tire sidewall marking and the wheel being used. With late-1920s bias-ply applications and original-style wheels, inner tubes are commonly part of the setup. The final answer depends on the specific tire construction details and the wheel itself.

That makes wheel inspection just as important as tire selection. If your Duesenberg still uses original-style demountable or early clincher-related hardware, tube service may be part of the proper installation approach. Before mounting, confirm the tire's sidewall information, inspect the wheel condition, and make sure the valve stem arrangement matches the intended setup so you avoid leaks and unnecessary rework.

Original 1927 Duesenberg wheels should only be used with the tire size and wheel diameter they were built to accept. The 700-19 fitment is clearly a 19-inch application, while 31X6.75 uses an older diameter-by-section code and should not be treated as automatically interchangeable with a 19-inch numeric size. Both are bias-ply, but that does not make them wheel-equivalent by default.

A careful check of the actual wheel on the car is the deciding step. Measure the rim diameter, inspect any wheel stamps, and compare the present tire markings before choosing between the two sizes. Many pre-war cars have lived long lives with repairs, wheel swaps, and restoration changes, so preserving the original wheel is possible only when its dimensions align with the size you plan to run.

A stored 1927 Duesenberg should be kept away from direct sunlight, electric motors, ozone sources, and standing moisture, with the tires cleaned and inflated appropriately before the car is parked. Bias-ply tires are more prone to temporary flat-spotting during long static periods than radials, so movement at intervals or the use of stands can help reduce stress. A cool, dry, dark environment is ideal for both the tires and the car.

That matters on a heavy pre-war luxury car because long-term static load can affect ride quality when the car first goes back on the road. If the car will sit for months, roll it periodically or slightly change the tire contact patch position. Keep petroleum products and tire dressings away from the rubber, and inspect the spare under the same conditions since it is often forgotten until needed.

Tires on a 1927 Duesenberg should be judged more by age and condition than by mileage. Collector-car tires often deserve close evaluation once they are around five to seven years old, and replacement becomes a serious consideration as they approach ten years from the date code, even if tread wear is minimal. That principle is especially important on low-use bias-ply tires that may look serviceable while the rubber has already aged.

A Duesenberg that only attends events can still age out its tires long before it wears them out. Check the sidewall and casing regularly, read the manufacturing date code where applicable, and think in terms of elapsed time rather than miles driven. The value of the car and the consequences of a failure make preventive replacement a smarter decision than stretching the life of visibly old rubber.

Tires on a 1927 Duesenberg should be inspected before every drive and again before any extended outing. Look for sidewall cracking, tread separation, embedded objects, uneven wear, pressure loss, and any bulging that suggests internal damage. Because pre-war tire systems may also involve tubes and older valve hardware, the valve area deserves close attention as well.

Routine inspection is one of the simplest ways to protect both the car and its occupants. A short local drive may hide problems that become serious once the tire heats up at road speed, so a walk-around is worth the few minutes it takes. For tour events or long-distance use, include the spare tire, wheel hardware, and inflation equipment in the inspection instead of focusing only on the four tires on the ground.

A 1927 Duesenberg 8 Cyl. would originally have used bias-ply tires, because radial construction was not part of American production-car practice in this era. The fitments associated here with that model are 31X6.75 and 700-19, which reflect period-appropriate sizing systems for the late 1920s. Original-equipment brand choice could vary by market and delivery, so construction type and correct size are the first authenticity checkpoints.

For a serious restoration, confirm the exact size against surviving car evidence, factory literature, and marque-club guidance rather than relying on general year-only assumptions. Duesenberg owners often deal with body-builder variation, long ownership histories, and restoration changes, so the most accurate answer can be specific to the individual automobile. Getting the size, tire format, and sidewall appearance right usually matters more than chasing a brand name without proof.

Correct tire fitment matters a great deal when a 1927 Duesenberg is judged for authenticity. On a car of this stature, judges and knowledgeable enthusiasts often notice whether the tire size, construction type, and sidewall style suit the car's era and presentation. A modern-looking substitute, an incorrect size format, or a sidewall treatment that clashes with the period can all undermine an otherwise careful restoration.

That does not mean every event uses the same judging standards, but it does mean tire details are part of the overall historical impression. If the car is being prepared for concours work, compare your intended fitment with period photographs, surviving examples, and the recommendations of Duesenberg specialists. Matching the proper visual character is especially important on a pre-war luxury car where the tires are such a visible part of the stance.

For the 1927 Duesenberg in 700-19, Firestone Balloon and Firestone Classic Bias Ply are both bias-ply offerings, but they differ in presentation and listed specifications. Firestone Balloon appears in blackwall and double-whitewall form, with listed 3.75 to 4.00 inch rim-width compatibility and weights of 29 and 37 pounds depending on version. Firestone Classic Bias Ply is listed in blackwall form at 30 pounds with a comparable load figure in this size.

The practical choice comes down to appearance and the details of the wheel setup rather than a change in tire construction type. If the visual impact of a wide white sidewall suits your restoration, the Balloon line offers that path in the same base size. If your goal is a more understated blackwall presentation, either Firestone series can keep the car within a period-correct bias-ply look while you confirm the wheel and fitment details.

1927 Duesenberg tires can be suitable for highway use when they are the correct size, in sound condition, properly inflated, and matched to a healthy wheel and chassis. The listed fitments here are bias-ply tires, and no speed-rating letters are shown on the available products, so safe road use should be approached with the car's age and design in mind rather than with modern high-speed expectations. On a late-1920s automobile, braking, suspension, steering, and wheel condition are just as important as the tire itself.

That means a well-prepared Duesenberg can be driven responsibly, but the driver should think in terms of conservative speeds and broad mechanical readiness. Before any sustained road use, inspect the tires thoroughly and make sure the rest of the car is equally ready for the trip. A reproduction bias-ply tire is only one part of the equation on a pre-war car with nearly a century of history behind it.

For 1927 Duesenberg tires in 700-19, listed products show maximum load figures of 1570 to 1585 pounds at 36 psi. That number is the tire's rated load pressure in the available specifications, not automatically the exact operating pressure your car should run in every condition. Inflation should be matched to the car's original recommendations, the tire manufacturer's specifications, and the way the car is actually being used.

The safest approach is to start with the factory guidance for the vehicle if you have it, then compare that with the reproduction tire's stated pressure and load information. Do not transfer a pressure from 700-19 to 31X6.75 by assumption, and do not set pressure by appearance alone on a heavy pre-war car. Consistent pressure checks matter because underinflation and overinflation both affect ride, wear, and casing stress.

Before taking a 1927 Duesenberg on a longer drive, inspect each tire for cracking, cuts, bulges, irregular wear, loose valve hardware, and signs of air loss, and make sure the spare is serviceable as well. Confirm wheel fasteners are secure and that the tires are inflated consistently side to side. Because this is a pre-war automobile, the tire check should be part of a broader inspection that also covers brakes, steering, fluids, wheel bearings, and lighting.

That broader routine matters because a long drive puts sustained heat and load into every part of the car, not just the tires. Even when the tires themselves look good, an aging valve stem, a damaged tube, or a wheel problem can end a trip quickly. Building a disciplined pre-drive inspection habit is one of the best ways to enjoy an important car like a Duesenberg with more confidence and fewer roadside surprises.