Auburn 80 Series Tires

The Auburn 80 Series uses two listed tire sizes for 1929: 28X5.50 and 550-18. The 550-18 size corresponds to products built for 18-inch rims, while 28X5.50 is an older diameter-by-section style code whose wheel diameter is not stated in the size itself. Both sizes belong to the same model year, which is why the Auburn 80 Series requires closer checking than a single-size application.

The practical step is to inspect the actual wheel and any surviving tire markings on the car before making a choice. If your Auburn 80 Series is already on 18-inch rims, 550-18 is the clearly defined modern listing in the current range. If the car carries 28X5.50 markings, treat that as a separate fitment path and confirm it against the wheel, restoration records, or marque reference material.

On an Auburn 80 Series, 28X5.50 is an antique diameter-by-section tire size. The 28 refers to the tire's approximate overall outside diameter in inches, and the 5.50 refers to its section width. It does not identify the wheel diameter the way a later size such as 550-18 does, so it can be confusing if you are accustomed to modern sizing conventions.

That difference matters because a buyer can easily mistake the first number for the rim size and end up pursuing the wrong tire. When an Auburn 80 Series carries a size like 28X5.50, confirm the wheel itself and compare the existing setup with period references before moving forward. Antique-coded sizes should be treated as a fitment clue, not as a substitute for checking the actual wheel and tire combination.

The 1929 Auburn 80 Series has two listed sizes because more than one tire fitment appears within that single model year. Those sizes are 28X5.50 and 550-18, and they represent different sizing conventions rather than simple alternate spellings of the same thing. One is an older diameter-by-section designation, while the other is a numeric bias-ply size tied directly to an 18-inch rim.

That means year alone is not enough to choose correctly for a 1929 Auburn 80 Series. The best approach is to verify what wheels are on the car now, look for any surviving sidewall markings, and compare the setup with restoration paperwork or factory-era references. Cars that have been restored over time may not still carry the same wheel and tire combination they originally used.

The currently listed Auburn 80 Series products are all bias-ply tires, and the 550-18 offerings should be used with tubes. That follows normal period practice for late-1920s fitments and matches the construction type shown in the available range. Bias-ply collector tires of this era are not treated the same way as later tubeless radial designs.

When fitting an Auburn 80 Series, tubes, flaps where appropriate, and clean wheel surfaces all matter to long-term reliability. Old rims should be inspected for rust, pitting, burrs, or repairs before the tire is mounted. If your car follows the 28X5.50 path rather than 550-18, tube-type assumptions become even more important because those antique-era style sizes depend heavily on proper wheel and tube compatibility.

A 1929 Auburn 80 Series should be checked by wheel diameter first, then by any size markings still present on the tire or wheel assembly. The two listed sizes are 28X5.50 and 550-18, and only 550-18 directly identifies an 18-inch rim in the size code. Because both belong to the same model year, relying on year alone can put you on the wrong path.

Start with the physical car in front of you rather than a general year range. Measure the wheel, read any sidewall markings if they survive, and compare those findings with restoration records or marque guidance. That process is especially important on an Auburn 80 Series that may have received replacement wheels or non-original tire choices during an earlier restoration.

Auburn 80 Series tires in the listed 550-18 size are available in blackwall, wide whitewall, and double-whitewall styles. The current range includes blackwall options from several brands, wide whitewall choices, and a double-whitewall Firestone. Those sidewall differences are cosmetic, but they can strongly affect how a late-1920s car presents visually.

For an Auburn 80 Series restoration, the right sidewall style depends on the look you want and the standard you are restoring to. A blackwall typically suits a more restrained period presentation, while whitewall variations create a more formal or upscale appearance. If the car will be judged, compare the sidewall style to period photography, marque references, and the car's overall restoration theme before choosing.

The current Auburn 80 Series 550-18 offerings come from Excelsior, Firestone, BFGoodrich, and Michelin. Those brands cover several period-style bias-ply series, including Comp H, Firestone Classic Bias Ply, Silvertown Classic Bias Ply, and Double Rivet. That gives Auburn 80 Series owners a useful spread of brand identity and tread-era presentation within the same numeric size.

Brand choice on an Auburn 80 Series usually comes down to the look you want, the sidewall style you need, and how closely the tire aligns with the character of your restoration. Some owners prioritize blackwall authenticity, while others are matching a whitewall aesthetic established earlier in the car's life. Once size and wheel diameter are confirmed, compare the series and sidewall treatments rather than choosing by name alone.

The Auburn 80 Series 550-18 range includes Excelsior Comp H, Firestone Classic Bias Ply, BFGoodrich Silvertown Classic Bias Ply, and Michelin Double Rivet. All are bias-ply offerings, but they differ in branding, sidewall presentation, and period style emphasis. Firestone and BFGoodrich include blackwall and whitewall choices, while Michelin Double Rivet and Excelsior Comp H provide additional period-correct visual alternatives.

For an Auburn 80 Series owner, the series decision is usually less about modern performance categories and more about restoration character. Compare the tread and sidewall appearance with the era you are trying to represent, then match that to the wheel size already on the car. Once those two points are settled, the series becomes a finishing detail that can sharpen the whole presentation of the automobile.

An Auburn 80 Series should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, solvents, and electric motors. Bias-ply tires on collector cars do best when inflation is maintained and the car is not left bearing weight in one position for long stretches. Clean floors and stable temperatures help preserve both the rubber and the tube-type assembly.

If the Auburn 80 Series will sit for months, move it periodically or support it in a way that reduces flat-spotting without stressing the suspension. Check pressure before and after storage rather than assuming the tires have held air. A breathable cover and regular visual inspection are better for long-term preservation than sealing the car into a damp or fluctuating environment.

Tires on an Auburn 80 Series should be inspected before every drive and more thoroughly several times خلال the season, especially if the car is used infrequently. Bias-ply collector tires deserve close attention to sidewall condition, tread separation signs, bead area integrity, valve stems, and pressure retention. On a late-1920s car, wheel condition matters almost as much as tire condition.

A practical routine is to look over the Auburn 80 Series before each outing, then perform a more detailed inspection at the start and end of the driving season. Any cracking, bulging, unusual wear, vibration, or repeated air loss should stop the car from being driven until the cause is identified. Collector cars age differently from daily drivers because time, storage, and inactivity all affect the tire.

An Auburn 80 Series tire should be replaced when age, cracking, hardening, vibration, structural change, or repeated air loss begins to appear, even if the tread still looks deep. Collector tires often age out long before they wear out, particularly on cars that spend much of their life parked or shown. Tread depth alone is not a reliable measure of serviceability on a bias-ply antique-era application.

That principle is especially important on an Auburn 80 Series because low annual mileage can hide deterioration that only appears once the car is back on the road. Any tire of significant age should be evaluated with the same seriousness as any other mechanical part on the car. Replacing tires proactively is usually far less costly than risking damage to rare bodywork, fenders, or chassis components.

The Auburn 80 Series is associated here with two period sizes for 1929: 28X5.50 and 550-18. The currently available 550-18 products include series such as Excelsior Comp H, Firestone Classic Bias Ply, BFGoodrich Silvertown Classic Bias Ply, and Michelin Double Rivet. That establishes the size family and style range, but the exact original tire for a particular Auburn 80 Series should be matched to factory literature, surviving photographs, or marque records.

For restoration work, the key is to separate what is broadly correct for the model from what is correct for your individual car. Auburn 80 Series cars may have been restored, re-wheeled, or cosmetically updated over decades of ownership. If authenticity matters, verify size, sidewall treatment, and overall presentation as a complete package rather than choosing by size alone.

Correct tire fitment can absolutely affect how an Auburn 80 Series is judged and how seriously the restoration is taken. Size, profile, sidewall style, and overall stance all influence whether the car looks mechanically and historically coherent. Even when a tire physically mounts, an incorrect size or inappropriate sidewall treatment can change the visual balance of the whole automobile.

For an Auburn 80 Series headed to shows, judges and experienced enthusiasts often notice tire details immediately because they sit at eye level and frame the car's proportions. The safest path is to match the tire choice to the era, wheel setup, and restoration goal, then compare it against marque-club guidance. Proper tire fitment supports both presentation quality and long-term collector credibility.

Auburn 80 Series tires in 550-18 are available in blackwall, wide whitewall, and double-whitewall styles. Any of those can create a period look, but the most correct choice depends on how the specific Auburn 80 Series was equipped or how it is being restored today. Sidewall style is one of the most visible details on a late-1920s car and can shift the presentation from understated to highly formal.

A blackwall Auburn 80 Series usually reads as more restrained and mechanical, while whitewall and double-whitewall treatments add visual richness and draw more attention to the wheel opening. To choose well, compare the car's trim level, paint scheme, and restoration objective with period imagery and club references. The right sidewall should look integrated with the whole car rather than chosen as an isolated styling cue.

A properly fitted, correctly inflated bias-ply tire can be suitable for public-road use on an Auburn 80 Series when the car itself is mechanically sound and used within the limits of its era. The available 550-18 range is made up of period-style bias-ply tires, which behave differently from modern radial tires in steering response, tracking, and braking feel. Safety depends on the whole vehicle, not the tire alone.

Auburn 80 Series owners should approach road use with realistic expectations and a conservative mindset. The car's brakes, steering, suspension, wheels, and tubes should all be inspected before regular driving begins. Shorter outings, moderate speeds, and close attention to tire pressure and condition are part of using a late-1920s collector car responsibly on modern roads.

Before driving an Auburn 80 Series, check tire pressure, visible sidewall condition, valve stems, wheel hardware, and any signs of cracking, bulging, or unusual wear. On a bias-ply, tube-type setup, pressure consistency matters because underinflation can quickly affect handling and heat buildup. The wheel itself should also be free of damage, corrosion, or looseness that could compromise the tire assembly.

A practical pre-drive routine for an Auburn 80 Series also includes checking steering free play, brake function, and whether the car has sat long enough to develop flat spotting. Take the first miles gently and pay attention to vibration, pull, or instability. Early warning signs are valuable on a collector car, because stopping to investigate quickly is usually what prevents a small issue from becoming an expensive failure.

An Auburn 80 Series running on period-style bias-ply tires should be driven at moderate, conservative speeds that respect both the tire design and the vehicle's mechanical age. These tires are intended to preserve period character, not to duplicate the behavior of a modern high-speed touring tire. Smooth steering inputs, longer following distances, and steady pace matter more than chasing modern traffic speeds.

The right speed for an Auburn 80 Series is the one that keeps the car settled, predictable, and comfortably within its braking and handling envelope. That usually means avoiding abrupt lane changes, sustained high-speed running, and rough pavement where possible. If the car is newly restored or newly fitted with tires, start with short drives and build confidence only after the whole setup proves stable and consistent.