28X3 Tire Size Guide

The 28X3 size uses an early diameter-by-section format. In this code, 28 identifies the overall tire diameter in inches, while 3 identifies the tire's section width in inches, giving you a tire that is about 28.00 inches tall and 3.00 inches wide in section.

Early antique sizes like 28X3 are much simpler than a modern P-metric code. They do not directly include an aspect ratio, service description, or other later sizing details in the code itself. For an antique vehicle owner, that means the size is only the starting point. Wheel design, tube setup, and the intended restoration standard still need to be checked before deciding that the 28X3 is the right match for a specific car.

The 28X3 uses an antique diameter-by-section code in which the leading 28 refers to the tire's outside diameter, not the wheel size. With this format, wheel fitment needs to be confirmed from the actual wheel and tire being used rather than assumed from the size code alone.

That distinction matters because many early wheels differ from later drop-center rims and can require a specific tire and tube arrangement. On an antique vehicle, the correct approach is to inspect the wheel itself, compare it with the tire's intended application, and confirm compatibility before mounting. Treat the 28X3 code as a sizing guide, but do not use it by itself as proof of wheel interchangeability.

The 28X3 tire has a section width of 3.00 inches, which converts to 76.20 millimeters. Section width is the broadest point of the inflated casing, measured sidewall to sidewall rather than across the tread face.

Clearance decisions should be based on section width because the sidewall is usually the first part of the tire to crowd a fender edge, suspension member, or brake component. Tread width is normally narrower and does not tell the full fitment story. On a narrow antique tire like the 28X3, even small differences in wheel design or body clearance can affect how the tire sits once mounted and inflated.

The 28X3 tire has an overall diameter of 28.00 inches, or 711.20 millimeters. That figure represents the full height of the tire from ground to top when measured straight through the center.

Overall diameter influences several things at once, including ride height, wheel-opening fill, and the visual proportions of an antique vehicle. It also affects effective gearing and speedometer behavior when compared with another size. On early restorations, keeping close to the original diameter is often important because even a modest change can alter the car's stance and make the tires look noticeably too tall or too short in the chassis.

The 28X3 is commonly a tube-type fitment and is often set up with a tube. Tube use is still a wheel-and-tire-system question rather than a size question alone, so the final decision should be confirmed against the actual wheel and tire being used.

Antique wheels and early tire constructions often rely on tube arrangements that differ from later tubeless practice. Because of that, the smart approach is to inspect the wheel type, confirm how the tire is built, and verify the recommended setup before assembly. For a brass-era vehicle, tube selection is part of the overall restoration and safety picture, not just a small accessory choice.

The 28X3 tire turns about 720.3 revolutions per mile. That number comes from the tire's 87.96-inch circumference and describes how many complete rotations it makes over one mile of travel.

Revolutions per mile become useful when comparing one size against another because a taller or shorter replacement will change how often the tire turns in the same distance. On an antique vehicle, that can affect indicated speed, odometer readings, and the overall feel of gearing. Even though the 28X3 belongs to a very early format, this measurement still helps when checking whether a substitute will preserve original proportions.

The 28X3 is strongly associated with brass-era and prewar antique passenger cars, and its bias-ply construction aligns well with the appearance and driving character expected on very early vehicles. For restorations that aim to preserve original-style proportions and road feel, this size and construction are often the more appropriate direction.

Authenticity still involves more than matching the size code alone. Wheel design, sidewall appearance, tube setup, and the particular year and model of the vehicle all need to be checked against the standard you are restoring to. A touring car built for judged presentation may call for different visual details than a driver-quality restoration, even when both use the 28X3 size.

The 28X3 should be treated as a starting point for fitment research, not as an automatic fitment guarantee for every vehicle associated with the size. Early applications from 1901 through 1908 can vary in wheel construction, body clearance, and restoration history even within the same make.

Before mounting the 28X3, compare the wheel itself, confirm the intended tire type, and inspect available clearance at the fender, steering, and suspension points. Many antique cars have had parts changed over the last century, so an old fitment reference may not describe the car exactly as it sits today. Original documentation and physical inspection remain the safest approach.

Wheel compatibility, overall diameter, section width, and tube setup are the key fitment points to confirm with the 28X3. The size gives you a tire that is about 28.00 inches tall and 3.00 inches wide, but antique wheel design can matter just as much as those measurements.

Buyers should also consider how the tire will sit in the wheel opening and whether the car is being restored for originality or for occasional road use. A narrow antique tire can look correct yet still create issues if the wheel is incorrect or the body and suspension no longer match factory geometry. Careful measurement is especially important on brass-era cars because modern assumptions do not always apply.

The 28X3 uses bias-ply construction, which generally gives an early vehicle the period-style ride and steering behavior owners expect from a brass-era setup. Compared with later radial designs, bias-ply tires typically have a different sidewall flex pattern and a more traditional road feel that suits antique chassis design.

Driving experience depends on more than construction alone. Steering geometry, suspension wear, alignment, inflation, wheel condition, and tire age all influence how an antique car behaves on the road. On a correctly sorted early car, the 28X3 preserves the narrow-tire character and visual authenticity that are part of the appeal, but owners should expect it to feel like an antique tire rather than a modern highway radial.

With a 28.00-inch overall diameter and a 3.00-inch section width, the 28X3 creates the tall, narrow profile that is visually correct for many brass-era passenger cars. Those proportions are a major part of how an early vehicle sits, especially on open-wheel and lightly bodied designs.

Changing either the height or width can alter more than appearance. A taller replacement may raise the car and affect gearing, while a wider one can crowd the wheel opening or look out of scale on an antique chassis. When owners talk about a car looking right, they are often responding to these proportions as much as to any individual styling detail.

The 28X3 can be used on antique vehicles in modern traffic only with realistic expectations about the vehicle, the tire construction, and the conditions involved. A brass-era bias-ply tire is chosen primarily to preserve original fitment character, not to duplicate the behavior of a modern passenger tire.

Road use should be guided by careful inspection of tire condition, wheel condition, suspension health, and the vehicle's braking and steering systems. Long trips, higher sustained speeds, and rough pavement all place greater demands on a very early car. Owners should match use to the capability of the full vehicle package rather than assuming that correct size alone makes the car ready for every modern driving environment.

The 28X3 is available from Universal Vintage Tire. In a specialty antique size like this, brand availability is often narrower than in later classic or modern fitments, so buyers usually focus on construction accuracy, appearance, and fitment suitability as much as brand count.

When evaluating a 28X3 tire, look closely at whether the tire matches your restoration goals and wheel setup. On an early vehicle, the right size, correct overall profile, and proper tire-and-tube arrangement matter more than broad brand comparison. Consistency across the full set is also important so the car sits evenly and keeps a uniform period appearance.

Quality in the 28X3 size should be judged by correct construction type, dimensional consistency, intended antique use, and how well the tire matches the restoration standard of the vehicle. Because this is a specialized early size, buyers are usually looking for faithful proportions and dependable build quality rather than modern touring features.

A well-chosen antique tire should fit the wheel correctly, preserve the car's narrow prewar stance, and deliver consistent appearance from one tire to the next. Buyers should also compare the sidewall presentation to the rest of the vehicle. On a brass-era car, visual details carry more weight than they would on a late-model daily driver, so quality includes how convincing the finished car looks.

The 28X3 is offered in both blackwall and all white versions, so the better choice depends on the look you want the car to present. Both use the same core size, but the sidewall treatment can shift the visual character of an antique vehicle noticeably.

Restoration goals should drive that decision. Some owners want a more understated period appearance, while others are trying to match a brighter early touring-car style. The best results usually come from selecting one sidewall style for the full set and making sure it aligns with the vehicle's trim, paint, and era-appropriate presentation rather than mixing styles across the car.

A lightly driven 28X3 can still age out before it wears out. Tread depth alone does not tell the whole story on an antique bias-ply tire, because time, heat, sunlight, ozone exposure, and long periods of inactivity all affect the casing and sidewalls.

Owners of brass-era cars should inspect for cracking, hardening, bulges, cuts, and any signs of separation even if the car spends most of its time in storage. Seasonal use often makes aging less obvious because the mileage stays low. Regular inspection matters more than odometer numbers, and a tire that still looks usable at a glance may no longer be the right choice for road service.

The 28X3 should be stored in a cool, dry space away from direct sunlight, electric motors, and other ozone sources that can age rubber prematurely. Clean conditions and stable temperatures help preserve a bias-ply antique tire better than a hot garage or damp outbuilding.

If the vehicle sits for long periods, move it occasionally or support it in a way that reduces prolonged flat spotting and stress on one section of the casing. Antique tires benefit from regular visual checks during storage, not just before driving season. Tube-equipped assemblies also deserve periodic inspection because the full wheel-and-tire system ages together.

Before using the 28X3, inspect each tire for air loss, cracking, cuts, bulges, uneven shape, and signs that the tire has shifted or deteriorated with age. Antique wheel condition should be checked at the same time because the tire's serviceability depends on the full assembly, not just the rubber.

Pressure should be verified regularly, but the correct figure needs to come from the specific tire, wheel, and vehicle combination rather than assumption. On an early car, a quick visual walkaround is not enough before a longer drive. Careful inspection is part of routine ownership because antique tires often see low miles but long spans of time between meaningful road use.

The 28X3 should be replaced when age, cracking, hardening, bulges, air-loss problems, or other condition issues suggest the casing is no longer trustworthy, even if visible tread remains. Antique bias-ply tires often spend more time aging than wearing, so appearance at the tread surface can be misleading.

Replacement decisions should be based on the tire's full condition and intended use, especially before tours or longer road trips. Owners should inspect the sidewalls, bead areas, and overall shape carefully and consider the history of storage and use. A brass-era tire can remain visually attractive while still becoming a poor candidate for continued service on the road.

The 28X3 is commonly a tube-type fitment, so safety depends on matching the tire, tube, and wheel correctly rather than looking at the size alone. The actual wheel design and the tire being used should always be confirmed before assembly because tube choice is part of the entire system.

Incorrect tube or wheel pairing can create problems that are not obvious from the outside, especially on very early rims. Buyers should inspect the wheel condition, confirm that all components are appropriate for the setup, and have questions reviewed by a qualified tire professional when needed. On antique cars, correct assembly practice is one of the biggest safety factors in real-world use.

Owners should inspect the 28X3 for air retention, cracking, sidewall damage, age-related deterioration, and secure mounting before any longer drive. The wheel itself should also be checked closely, since antique tire serviceability depends on the condition of the complete wheel-and-tire assembly.

Longer outings place more sustained heat and stress into an early tire than short neighborhood use. Buyers should also confirm that the car's steering, brakes, and suspension are in sound condition and that the tires are appropriate for the vehicle's load and intended route. Careful pre-trip inspection is especially important with a brass-era fitment because every part of the system is older by design.