1904 Cadillac Tire Fitment Guide

1904 Cadillac vehicles use three tire sizes across two models: 28X3 for the 1904 Cadillac Model A, plus 30X3.5 and 30X3 for the 1904 Cadillac Model B. These are antique diameter-by-section sizes, and they are not interchangeable across the full 1904 Cadillac lineup. The 30X3.5 products mount on 23-inch rims, while 30X3 products mount on 24-inch rims.

That means year and make alone are not enough to choose correctly for a 1904 Cadillac. Start by confirming whether the car is a Model A or Model B, then verify the actual wheel and rim diameter on the car before selecting a tire. Once the correct size is identified, the remaining choice usually comes down to period-correct tread pattern and sidewall appearance rather than a modern construction decision.

On a 1904 Cadillac, 28X3 is an antique tire size format rather than a modern metric or alphanumeric code. The first number, 28, refers to the tire’s overall outside diameter in inches, and the second number, 3, refers to the nominal section width in inches. For 1904 Cadillac applications, 28X3 appears on the Model A and is offered in bias-ply construction.

That style of marking is typical of very early Brass Era fitments, when tire sizing was tied closely to carriage-derived wheel designs and narrow section widths. If you own a 1904 Cadillac Model A, 28X3 is the correct family of tire to research further, but it is still wise to inspect the wheels and confirm the car’s existing setup before choosing between blackwall and white sidewall presentation.

No, 1904 Cadillac models do not all use the same tire size. The 1904 Cadillac Model A uses 28X3, while the 1904 Cadillac Model B uses either 30X3.5 or 30X3 depending on the wheel setup. The two Model B sizes also differ by rim diameter, with 30X3.5 on a 23-inch rim and 30X3 on a 24-inch rim.

That split matters because a buyer cannot safely treat every 1904 Cadillac as one universal fitment. If you are still identifying the car, look at the model first and then the wheel dimensions already on it. Owners working with a restoration project should also compare the current setup with period photos, surviving original parts, or marque-club guidance before deciding which Model B size best matches the car.

1904 Cadillac tires are available in both blackwall and white sidewall treatments, depending on size. The 28X3 options for the 1904 Cadillac Model A include Blackwall and All White versions. The 30X3.5 and 30X3 sizes used on the 1904 Cadillac Model B also include Blackwall choices, and both sizes include All White offerings as well.

For a Brass Era Cadillac, sidewall appearance plays a large role in the car’s finished look. Owners pursuing an authentic early motoring presentation often pay close attention to whether the car’s period, event style, and restoration theme call for blackwall or white sidewall tires. Once the correct size is confirmed, sidewall style becomes one of the most visible choices affecting how a 1904 Cadillac reads at a show or on the road.

Three brands appear across the available 1904 Cadillac sizes: Universal Vintage Tire, Firestone, and Coker Classic. The 28X3 size for the 1904 Cadillac Model A is offered by Universal Vintage Tire. The 30X3.5 size for the 1904 Cadillac Model B appears from Universal Vintage Tire and Firestone, while 30X3 appears from Coker Classic and Universal Vintage Tire.

Brand choice on a 1904 Cadillac usually goes hand in hand with tread style, sidewall appearance, and the specific Brass Era look you want the car to carry. Some owners prefer a simpler ribbed or smooth visual presentation, while others want a clincher-style product that feels especially aligned with early motoring practice. The right comparison is less about one brand being universally superior and more about matching the correct size and period character to the car.

For the 1904 Cadillac Model B in 30X3.5, Firestone Clincher and Universal T-Driver represent two distinct product families within the same size. Firestone Clincher versions list a maximum load of 800 pounds at 65 psi, appear in blackwall form, and include clincher or beaded-edge character with one Non Skid variant. Universal T-Driver in 30X3.5 is also bias-ply and blackwall, but it is presented as a Brass Era T-Driver series rather than a Firestone clincher pattern.

The practical choice depends on what matters most for your 1904 Cadillac Model B restoration. If you want a clincher-style presentation and have use for the listed load figure, the Firestone option stands apart. If you are aiming for a different tread personality within the same period and size family, the Universal T-Driver gives you another historically appropriate direction without changing the basic fitment.

A specific rim width is listed for one 1904 Cadillac tire application: a Firestone Clincher 30X3.5 for the 1904 Cadillac Model B shows a 2.025-inch rim width. The same 30X3.5 size also uses a 23-inch rim diameter, while 30X3 for the 1904 Cadillac Model B uses a 24-inch rim diameter. The 28X3 size used on the 1904 Cadillac Model A appears without a rim width listing here.

Because Brass Era wheel designs can vary and surviving cars are often restored or reassembled over many decades, rim width should be treated as a direct measurement item rather than an assumption. Measure the wheel you plan to use and compare it against the chosen tire’s requirements. That is especially important on a 1904 Cadillac Model B, where two similar-looking 30-inch tire sizes mount on different rim diameters.

The available 1904 Cadillac tire listings do not show tube-type or tubeless markings in the size field. For a 1904 Cadillac, that usually means the buyer should treat tube fitment as a wheel-and-product-specific setup question rather than assume a modern tubeless arrangement. This is especially relevant on Brass Era applications such as clincher or beaded-edge tires, where the wheel design itself plays a central role.

Before fitting tires to a 1904 Cadillac, confirm the exact wheel style and the intended setup for the specific tire you plan to use. Tube selection, flap requirements, and valve compatibility can matter just as much as the tire size on early cars. If the wheels are original or long-restored pieces, it is wise to inspect the rim condition closely and consult a Brass Era specialist before final assembly.

A 1904 Cadillac should be stored in a cool, dry, dark space away from direct sunlight, electric motors, furnaces, welders, and other ozone-producing equipment that can accelerate sidewall aging. Bias-ply Brass Era tires are especially prone to flat-spotting if the car sits for long periods in one position. Clean floors and stable temperature matter more than decorative indoor presentation if long-term tire condition is the priority.

Move the 1904 Cadillac periodically so the tires are not carrying the same load patch month after month, or use properly placed stands if the car will be stationary for an extended storage interval. Keep inflation checked during storage, and avoid letting the tires sit underinflated. When the car comes back into use, inspect each sidewall and tread face carefully before the first drive rather than assuming a stored tire is automatically road-ready.

On a 1904 Cadillac, tire life is usually judged more by age and storage history than by mileage. Collector tires often deserve close evaluation once they reach the five- to seven-year range, and many owners begin serious replacement consideration as tires approach about ten years of age. That is true even if a 1904 Cadillac has seen very limited road use.

A lightly driven Brass Era car can still be riding on old rubber that has hardened, cracked, or weakened internally over time. Check the date information where applicable, inspect for sidewall checking and tread separation signs, and consider how the car has been stored. A 1904 Cadillac used mainly for tours or events should have its tires evaluated on age first and miles second.

Tires on a 1904 Cadillac should be inspected before every drive and again before any longer outing. Look for sidewall cracking, tread cuts, irregular wear, bulges, and signs that the tire is not holding pressure normally. Because these are early bias-ply applications, a visual check should also include the wheel edge, bead area, and overall seating condition.

A short local drive in a 1904 Cadillac still places real demands on tires that may spend long periods parked between events. Regular inspection catches age-related problems early and gives you time to address them before a tour or parade. If the car is using tube-based early wheel hardware, include valve stem condition and slow leak checks as part of the routine rather than treating inflation loss as normal.

A 1904 Cadillac Model A would have been fitted in the Brass Era with bias-ply tires in an early diameter-by-section format rather than a later alphanumeric or metric size. The size associated here with the 1904 Cadillac Model A is 28X3, which fits the period and construction type expected for a car of this age. Original-equipment branding could vary by market and surviving records, so the most reliable constant is the size family and construction style.

For restoration work, the important point is preserving the correct early visual and dimensional character of the tire. That means matching the 28X3 size first, then choosing a tread and sidewall presentation that suits the car’s restoration theme. Owners seeking event-level authenticity for a 1904 Cadillac Model A should compare against period literature, surviving photos, and marque-club guidance before finalizing a brand or cosmetic treatment.

Correct tire fitment matters a great deal when showing a 1904 Cadillac because judges and knowledgeable spectators often notice size, construction type, tread pattern, and sidewall appearance immediately on Brass Era cars. A 1904 Cadillac wearing the wrong diameter-by-section size, the wrong wheel pairing, or an obviously later-style tire presentation can look out of character even to a casual observer. On early Cadillacs, tires are a major visual component of authenticity.

That does not mean every event uses identical judging standards, but it does mean tire details deserve the same attention as paint, lamps, or hardware. Model A and Model B also need to be separated correctly, since they do not share one universal size family. If your 1904 Cadillac is being prepared for marque judging or AACA-style scrutiny, confirm size, sidewall style, and wheel type against the standards used by that event.

For the 1904 Cadillac Model B in 30X3, Coker Smooth and Universal Ribbed Tread offer two different period-style approaches within the same antique size. Coker Smooth appears from Coker Classic in Blackwall and All White versions and lists a maximum load of 450 pounds at 65 psi. Universal Ribbed Tread in the same 30X3 size appears from Universal Vintage Tire and includes an All White option with a more visibly ribbed tread character.

That means the choice is less about changing fitment and more about the look and presentation you want on a 1904 Cadillac Model B. A smooth-tread tire can give a very clean Brass Era appearance, while a ribbed tread emphasizes another authentic visual cue from the period. If your goal is authenticity, compare the tread style to the restoration theme and the era-specific appearance you want the car to project.

1904 Cadillac tires are bias-ply Brass Era designs, and no speed ratings are shown for the available sizes. In practical terms, a 1904 Cadillac’s safe operating envelope is usually governed at least as much by the car’s early braking, steering, suspension, and overall mechanical design as by the tire itself. These tires are intended for vintage vehicle use, but they should be treated with the expectations appropriate to a car from the dawn of American motoring.

Owners who plan to drive a 1904 Cadillac on modern roads should keep speeds conservative, avoid sustained high-speed running, and make sure the entire car has been inspected as a system. Tire age, wheel condition, and inflation all matter, but so do wheel bearings, brakes, and steering play. A properly prepared 1904 Cadillac can be enjoyed on the road, yet it should be driven within the limits of Brass Era engineering.

Two 1904 Cadillac sizes include load-and-pressure figures in the available products. Some 30X3.5 tires for the 1904 Cadillac Model B list 800 pounds at 65 psi, while some 30X3 tires for the 1904 Cadillac Model B list 450 pounds at 65 psi. Those are product-specific rated figures, not universal inflation instructions for every 1904 Cadillac tire or every wheel setup.

Use the car’s original literature where available for vehicle-level guidance, then compare that with the rating information for the exact tire you plan to run. Do not transfer a pressure figure from 30X3.5 to 30X3, or from Model B to Model A, simply because the numbers are close in appearance. On a 1904 Cadillac, inflation should match the specific size, product, vehicle weight distribution, and wheel condition.

Before a longer drive in a 1904 Cadillac, inspect every tire for sidewall cracking, cuts, exposed cord, bulges, uneven wear, and proper inflation. Check the bead or clincher area carefully on early-style wheels, and inspect the spare with the same seriousness as the tires already on the ground. A sound tire setup on a Brass Era car begins with condition, age, and secure mounting.

A longer outing also calls for looking beyond the tires alone. On a 1904 Cadillac, wheel hardware, valve condition, steering response, brake function, and bearing health are all part of the same readiness check. If the car has been sitting, take a short local test drive first and recheck inflation and wheel security afterward before committing the car to a more extended road run.