1928 Gardner Tire Fitment Guide

1928 Gardner vehicles use six sizes across three model lines. The 75 Series uses 29X5.25 and 5.25-19, the 85 Series uses 31X6.00 and 600-19, and the 95 Series uses 30X6.20 and 650-18. The numeric sizes identify wheel diameter directly: the 75 and 85 Series numeric sizes mount on 19-inch rims, while the 95 Series numeric size mounts on an 18-inch rim. Published rim-width guidance appears on the available 650-18 products at 3.25 to 3.50 inches.

That means there is no single tire size that covers every 1928 Gardner. If you are starting with only the year and make, the most important step is identifying whether your car is a 75, 85, or 95 Series. Once the series is confirmed, compare the wheel itself to the matching numeric size, since that is the clearest path to confirming rim diameter before choosing among the products available for that model's fitment.

On a 1928 Gardner, 29X5.25 is an antique diameter-by-section size. The first number, 29, refers to the tire's overall outside diameter in inches, and the second number, 5.25, refers to nominal section width in inches. That style of sizing was common in the era before later tire conventions made rim diameter the more obvious second number in the size code.

For a buyer or restorer, that matters because antique-format sizes can look unfamiliar next to later numeric sizes such as 5.25-19. The code is describing the tire in a different way, not signaling a modern metric equivalent. If your 1928 Gardner is a 75 Series, treat 29X5.25 as a period-correct size notation and verify the actual wheel and model application before selecting a replacement tire.

On a 1928 Gardner, 650-18 is a numeric bias-ply size. The 650 stands for a nominal 6.50-inch section width, with the decimal omitted in the older style, and the 18 means the tire fits an 18-inch wheel. Within the 1928 Gardner range, this size belongs to the 95 Series rather than the smaller series cars.

That makes 650-18 one of the clearest size codes for a restorer because the wheel diameter is stated directly. Available products in this size also show two distinct sidewall presentations, Blackwall and Wide Whitewall, so a 95 Series owner can narrow the search by both wheel diameter and appearance. Confirming that your car is a 95 Series is still essential before treating 650-18 as the correct fitment.

Available sidewall styles for 1928 Gardner tires include Wide Whitewall and Blackwall, depending on size. The 600-19 offering appears as a Lester Wide Whitewall, while 650-18 is available from Firestone in both Wide Whitewall and Blackwall form. Those options are tied to specific sizes and models, so sidewall choice is not independent of fitment.

For a late-1920s luxury-oriented car such as a Gardner, whitewalls are often favored when the goal is a more formal period presentation, while blackwalls can suit a plainer or more understated look. The right starting point is still the model and correct size code; after that, sidewall style becomes an appearance decision that can influence how authentic or restrained the finished car looks.

Two brands appear in the available 1928 Gardner tire range: Lester and Firestone. Lester is offered in 600-19 for the 85 Series, while Firestone appears in 650-18 for the 95 Series. Both are bias-ply offerings, which aligns with the period construction expected for a 1928 automobile.

Brand choice on a 1928 Gardner is therefore partly determined by the size your series uses. If you own an 85 Series, your currently listed option is tied to Lester in 600-19, while the 95 Series buyer looking at 650-18 is choosing within Firestone's range and sidewall styles. The practical move is to confirm your series first, then compare brand and appearance within that model's correct size family.

The two Firestone Balloon options in 650-18 for a 1928 Gardner share the same size, bias-ply construction, 18-inch rim diameter, and 3.25 to 3.50-inch rim-width range. The visible difference is sidewall style: one is a 3.50-inch Wide Whitewall and the other is a Blackwall. The Blackwall version also carries a published maximum load figure of 1205 pounds at 36 psi and is listed at a lighter weight than the whitewall version.

That means the choice is mainly one of appearance and presentation, with both options staying within the same period-correct size family for the 95 Series. A restorer chasing a more formal late-1920s look may lean toward the whitewall, while a buyer after a more restrained visual profile may prefer the blackwall. Either way, the wheel itself should be confirmed against the 18-inch fitment before final selection.

Published rim-width guidance appears for the 650-18 tire used on the 1928 Gardner 95 Series, and that size is matched to rims measuring 3.25 to 3.50 inches wide. The available Firestone Balloon products in 650-18 share that same width range. Other 1928 Gardner sizes shown here do not carry published rim-width figures in the available product range.

For a 95 Series owner, that width range is an important wheel check before choosing a tire. For the 75 and 85 Series, the right approach is to verify the actual wheel and compare it to the intended size rather than assuming interchangeability from appearance alone. On a late-1920s car, even a correct series identification should still be paired with a direct wheel measurement before installation.

The currently listed 1928 Gardner tire products do not carry tube-type or tubeless markings in the size callouts, so the safest approach is to confirm the specific tire's sidewall marking and wheel design before setup. Because these are late-1920s bias-ply fitments on period-style wheels, tube use is often part of the overall wheel-and-tire system rather than a decision made by size code alone.

That makes wheel condition just as important as tire selection. Before fitting tires to a 1928 Gardner, inspect the wheel for the proper profile, condition at the bead seat, and the condition of the valve-hole area if tubes will be used. Matching the tire to the wheel construction and the specific product's markings is a better practice than assuming every bias-ply tire for a 1928 car is configured the same way.

A 1928 Gardner should be stored in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, welders, or other ozone-producing equipment. Bias-ply tires on cars of this era are more prone to flat-spotting during long static storage, especially if the car sits in one position for months at a time. Clean floors, stable temperatures, and protection from moisture all help preserve the tire casing and sidewall surface.

For practical storage, keep the tires properly inflated, move the car periodically if possible, and consider taking some weight off the tires during very long layups. A breathable car cover and regular garage checks matter more than cosmetic dressings. When the car comes back into service, inspect each tire closely before driving rather than assuming a tire that looked fine at the start of storage is still ready for road use.

Tires on a 1928 Gardner should be judged more by age and condition than by mileage. On collector vehicles, many owners begin evaluating tires closely once they are around five to seven years old and treat ten years as a strong point for replacement consideration, even if tread depth still looks usable. The DOT-style date code on modern reproduction tires is the most reliable reference point for age.

That guideline matters because low annual mileage can hide the effects of aging rubber, internal deterioration, and long-term storage stress. A 1928 Gardner that only attends shows or weekend tours may still need tires sooner than the odometer suggests. If the car is newly acquired, checking the age of the tires should be one of the first maintenance steps before any meaningful road use.

Tires on a 1928 Gardner deserve a close inspection before every drive and a more thorough inspection before any longer outing. Look for sidewall cracking, tread separation, uneven wear, cuts, bulges, and any sign that the tire is losing pressure over time. On an older collector car, the valve area and wheel condition also deserve attention because age-related issues often appear there first.

Regular inspection is especially important on a car that may sit for long periods between drives. A tire that survived the last event can still develop cracking, a shifted tube issue, or a pressure loss during storage. Make tire checks part of the same routine as fluid checks, brake checks, and lighting checks so the 1928 Gardner is prepared as a whole, not just cosmetically ready to leave the garage.

The 1928 Gardner 75 Series used bias-ply tire construction, which was standard for American passenger cars of the period. Within the 1928 Gardner range, the 75 Series is associated with 29X5.25 and 5.25-19, reflecting both antique-style diameter-by-section notation and the numeric sizing language common to the era. No original-equipment brand should be assumed from that alone, because period delivery could vary by market, dealer practice, or replacement history over the car's life.

For restoration work, the practical goal is to match the 75 Series to the correct size family and period construction before worrying about finer presentation details. If the car is intended for formal judging, it is wise to cross-check club resources, factory literature, and surviving examples within the Gardner community. That extra step helps confirm whether the car should lean toward one period notation or another in a concours-minded restoration.

Correct tire fitment matters on a 1928 Gardner because judges and knowledgeable enthusiasts often notice whether the size, construction type, and sidewall presentation suit the era and model. A late-1920s Gardner belongs in a bias-ply context, and a mismatch in size family or a visibly inappropriate sidewall treatment can distract from an otherwise accurate restoration. The standard is not identical at every event, but authenticity is often judged as part of the car's overall impression.

That means a show-oriented owner should think beyond simple rolling fit. The correct series, the correct size notation family, and a sidewall style that fits the way the car would have appeared in period all influence how convincing the finished restoration looks. Event rules vary, so marque clubs and event-specific judging sheets are the best way to refine the final choice once the basic fitment has been confirmed.

A 1928 Gardner can appear with both antique and numeric size styles because tire sizing was evolving during the era. Antique sizes such as 29X5.25, 31X6.00, and 30X6.20 express overall diameter and section width, while numeric sizes such as 5.25-19, 600-19, and 650-18 express nominal section width and wheel diameter. Both styles belong to the period and can be relevant depending on the specific model and restoration approach.

For authenticity, the distinction matters because the sidewall marking and the way the size is represented can influence how era-correct the car appears to an informed eye. A restorer should start with the series identification, then compare the actual wheel and the visual goals of the project. If the car is being restored for high-level judging, checking period Gardner literature or marque-club guidance can help settle which presentation is most convincing.

1928 Gardner tires can be suitable for road use when they are the correct size, in sound condition, properly mounted, and inflated for the application. The available products shown here are all bias-ply tires, which means they deliver the period driving character expected for a late-1920s car rather than the feel of a modern radial. No published speed ratings are shown on the listed sizes, so road use should be approached with the limits of both the tire and the nearly century-old vehicle in mind.

In real-world use, the Gardner's own brakes, steering, suspension, and general mechanical condition are often as important as the tire itself at normal highway speeds. Safe touring starts with realistic cruising speed, proper inflation, and a car that has been sorted mechanically rather than simply fitted with fresh rubber. Treat the tires as one part of the system, not the sole factor that determines whether the car is ready for a longer trip.

Inflation pressure for a 1928 Gardner should follow the vehicle's factory guidance where available, while also respecting the tire maker's published limits for the specific product. Within the currently listed range, one Firestone 650-18 product carries a maximum load figure of 1205 pounds at 36 psi. That is a product-specific maximum load-and-pressure reference, not a blanket recommendation for every 1928 Gardner tire size.

The practical approach is to use the correct size first, then compare the product's sidewall information with the vehicle literature and the way the car is actually used. Do not transfer a pressure figure from 650-18 to 600-19 or to the antique-size notations, because tire size and construction details matter. On a collector car, a pressure check before each outing is more valuable than relying on memory from the last drive.

Before a longer drive in a 1928 Gardner, inspect each tire for cracks, cuts, bulges, uneven wear, and signs of tread or casing distress. Confirm inflation pressures, look closely at the valve stems, and inspect the spare with the same care as the four road tires. On a late-1920s car, a tire that appears acceptable at a glance can still be compromised by age, long storage, or deterioration around the bead and valve area.

A longer-drive check should also include the rest of the car: brakes, steering response, wheel fasteners, fluids, lights, and basic cooling-system condition. Tires are only one part of vintage-road readiness, but they are the first thing connecting the Gardner to the road. Building a routine checklist before every tour helps catch small issues in the garage rather than discovering them miles from home.