By 1932, Hupmobile was still competing in the hard-fought mid-priced American market with stylish, well-engineered cars that appealed to buyers who wanted something a little less ordinary than the volume makes. The year's lineup ranged from the compact 216 Series to larger 322 Series and 326 models, and each sits in a slightly different tire-size lane. For 1932 Hupmobile, the real fitment question is model-specific rather than a simple choice between shared sizes, because the three models use three different bias-ply sizes on two different rim diameters. Before choosing a tire, the first step is confirming exactly which 1932 Hupmobile model you have and matching its wheel diameter to the correct size.
Which Tire Size Is Right for Your 1932 Hupmobile
Three tire sizes are used across 1932 Hupmobile vehicles, and they vary by model rather than being shared across the full lineup. Because these sizes do not all use the same rim diameter, the first decision is identifying the correct model and wheel diameter before comparing brand, sidewall style, or restoration character. Understanding that distinction first makes it much easier to choose the right tire for the car you are working on.
Year(s): 1932|Fit(s): 216 Series|Construction: Bias Ply|Rim: 18 in
550-18 is a numeric bias-ply size in which 5.50 refers to the nominal section width and 18 is the wheel diameter in inches, and on 1932 Hupmobile it is specific to the 216 Series rather than the full model range. Available choices include Excelsior, Firestone, and BFGoodrich, with blackwall, wide whitewall, and double-whitewall sidewall styles represented in this size. Buyers restoring a smaller-displacement Hupmobile with an emphasis on period appearance will usually start here, then narrow the choice by the sidewall look that best suits the car's intended presentation.
Year(s): 1932|Fit(s): 322 Series|Construction: Bias Ply|Rim: 17-in rim
6.00-17 is a numeric bias-ply size, meaning a nominal 6.00-inch section width on a 17-inch wheel, and it is used on the 1932 Hupmobile 322 Series rather than across every model. This size appears as a bias-ply fitment, which keeps the construction in step with the era of the car. It is the natural choice for a 322 Series owner who wants the correct size family first and can then sort through available product styling and brand preferences within that fitment.
Year(s): 1932|Fit(s): 326|Construction: Bias Ply|Rim: 17-in rim
6.50-17 is another numeric bias-ply size, with a nominal 6.50-inch section width paired with a 17-inch rim, and for 1932 Hupmobile it is specific to the 326. The construction remains bias-ply, which suits the driving character and visual authenticity expected on a pre-war car of this type. Owners of a 326 should choose this size when matching the larger model's intended tire fitment, then verify wheel width and preferred sidewall appearance before settling on a specific product.
Three 1932 Hupmobile models are covered here, and tire size changes with the model rather than carrying across the whole lineup. That means year and make alone are not enough for fitment research on a 1932 Hupmobile; you need to identify whether you have a 216 Series, 322 Series, or 326 before choosing a size. Select your model below to continue into model-specific fitment history and available tires.
1932 Hupmobile 216 Series
The 216 Series represented Hupmobile's smaller offering for the year, giving buyers a more compact entry into the brand while still carrying the styling flair that helped Hupp stand apart in the early 1930s. Its tires mount on 18-inch wheels, which sets it apart from the larger 17-inch-rim cars elsewhere in the 1932 Hupmobile range.
The 322 Series sat higher in the lineup and reflects Hupmobile's effort to compete with more substantial mid-priced American cars during a difficult period for the industry. Its tire fitment uses a 17-inch wheel, so owners should start with that rim diameter before comparing individual tire choices.
The 326 belongs to Hupmobile's larger 1932 offerings and would typically appeal to restorers looking for the fuller presence expected of an upper-series pre-war American car. Like the 322 Series, it mounts on 17-inch wheels, but it uses a different tire size within that rim diameter family.
Seven products are available across three tire sizes for 1932 Hupmobile vehicles. The 550-18 size includes seven Excelsior, Firestone, and BFGoodrich bias-ply options with blackwall, wide whitewall, and double-whitewall styles, so confirm the correct model and size first before narrowing the look of the tire.
These FAQs cover how tire size changes across the 1932 Hupmobile lineup, what the early numeric sizing means, how wheel diameter affects your choice, and what pre-war owners should watch for in storage, setup, and road use.
Size Basics & Fitment
What tire sizes fit 1932 Hupmobile vehicles?
1932 Hupmobile vehicles use three different tire sizes depending on model. The 216 Series uses 550-18, the 322 Series uses 6.00-17, and the 326 uses 6.50-17. Those sizes are all bias-ply fitments, but they are not interchangeable across the lineup because the 216 Series uses an 18-inch rim while the 322 Series and 326 use 17-inch rims.
That model split matters because a buyer cannot choose for a 1932 Hupmobile by year and make alone. Start by confirming the model designation on the car, then confirm the wheel diameter actually fitted to it. On 550-18 applications, listed rim widths run from 3 to 4 inches, which is helpful when checking an existing wheel before moving on to sidewall style and brand preference.
What does 550-18 mean on a 1932 Hupmobile tire?
On a 1932 Hupmobile, 550-18 is an early numeric bias-ply size. The 5.50 refers to the nominal section width in inches, and the 18 refers to the wheel diameter in inches. It is the correct size family for the 1932 Hupmobile 216 Series and belongs to the pre-war sizing system used before modern metric radial markings became common.
That means a modern buyer should read 550-18 as both a size and an era cue. It points you toward a bias-ply tire with the proper period look, and it also tells you the wheel must be 18 inches in diameter. Once that is confirmed, the remaining choice usually comes down to appearance, since this size is offered in blackwall, wide whitewall, and double-whitewall styles.
Do all 1932 Hupmobile models use the same tire size?
No, 1932 Hupmobile models do not all use the same tire size. The 216 Series uses 550-18, the 322 Series uses 6.00-17, and the 326 uses 6.50-17. Even the two larger cars that share a 17-inch rim do not share the same nominal tire width, so there is no single universal size for the entire 1932 Hupmobile range.
That makes model identification especially important on a car that may have changed hands many times or received wheel swaps over the decades. If the body tag, series designation, or wheel diameter does not line up with the tire currently on the car, treat the existing fitment as something to verify rather than copy automatically. A few minutes spent confirming the model usually prevents a much bigger fitment mistake later.
Buying the Right Tire
What sidewall styles are available for 1932 Hupmobile tires?
1932 Hupmobile tires are available in more than one sidewall style, with 550-18 offered in blackwall, wide whitewall, and double-whitewall form. Those choices give restorers room to tune the visual character of a pre-war Hupmobile without leaving the correct size family for the model. All of the listed options remain bias-ply, so the sidewall decision is mainly about appearance rather than switching construction type.
For a car restored with a restrained factory look, blackwall is often the simplest direction. Wide whitewalls and double whitewalls tend to create a more formal or more dressy presentation, which can suit many early-1930s American cars depending on body style and judging standards. If authenticity matters, compare the car against period photography, marque-club guidance, and the trim level you are restoring before finalizing sidewall style.
What brands make tires for 1932 Hupmobile vehicles?
Available 1932 Hupmobile tires in 550-18 come from Excelsior, Firestone, and BFGoodrich. All of those offerings are bias-ply and stay within the style and construction language expected for a pre-war American automobile. The brand mix gives owners a choice between a more traditional blackwall presentation and whitewall variations without leaving the correct size family for the 216 Series.
Brand selection on a collector car like a 1932 Hupmobile usually comes after the more important decisions of model, size, and sidewall style. Once those are settled, compare the individual tire's visual details and wheel-width compatibility with the wheel actually on the car. If you are trying to match a specific restoration standard, brand heritage may matter less than construction, size, and sidewall appearance.
What is the difference between Firestone and BFGoodrich 550-18 tires for a 1932 Hupmobile?
For a 1932 Hupmobile using 550-18 tires, Firestone and BFGoodrich differ most clearly in sidewall presentation, listed wheel-width pairing, weight, and rated load figures. The Firestone blackwall and double-whitewall versions are shown with a 3.25-inch rim width, 1125-pound maximum load at 32 psi, and weights of 19 or 23 pounds depending on version. The BFGoodrich 3.00-inch whitewall is shown with a 3-inch rim width, a 1000-pound maximum load at 32 psi, and a 23-pound weight.
Those differences do not make one universally right for every 1932 Hupmobile 216 Series. They simply mean the visual look and wheel match should be checked against the actual car before choosing. If your wheel is closer to one listed rim width than another, or if one whitewall proportion better suits the restoration, that will usually matter more than trying to reduce the choice to a single brand preference.
Fitting & Setup
What rim width do 1932 Hupmobile tires require?
Rim-width guidance is available for 1932 Hupmobile 550-18 tires, and the listed products pair that size with rims from 3 to 4 inches wide. Specific examples include 3-inch, 3.25-inch, and 4-inch wheel pairings within that size. That gives a useful working range for the 1932 Hupmobile 216 Series when checking original wheels or evaluating replacements that are intended to preserve period-correct fitment.
The practical step is to measure the wheel actually on the car before selecting a tire, especially if the vehicle has been restored or modified in the past. A tire may be the correct nominal size and still be a poor match to the wrong wheel width. For the 17-inch Hupmobile sizes, confirm wheel condition and dimensions directly against the tire you are considering rather than assuming every pre-war wheel is the same.
Do 1932 Hupmobile tires require inner tubes?
1932 Hupmobile tires from this era should generally be approached as tube-type bias-ply applications, especially when they are fitted to original-style pre-war wheels. That reflects the construction and wheel design conventions of the early 1930s, when tube-type service was standard practice on American passenger cars like Hupmobile. The tire itself is only part of that setup, because the wheel design and valve-stem arrangement also affect how the assembly is built.
Before final assembly, check the specific tire's sidewall marking and confirm that the wheel is suitable for the intended tube and flap arrangement if one is used. It is also wise to inspect the rim for rust, pitting, or spoke-end issues that can damage a tube over time. On a low-use collector car, a careful tube and valve-stem setup often matters just as much as choosing the right outer tire size.
Maintenance, Storage & Longevity
How should I store a 1932 Hupmobile when the tires are fitted?
A 1932 Hupmobile should be stored away from direct sunlight, standing moisture, and electric motors or battery chargers that generate ozone, because those conditions accelerate sidewall aging on vintage-style tires. Bias-ply tires also tend to flat-spot more readily during long static storage than modern radials, particularly on a heavier pre-war car. Clean, dry flooring and stable temperatures help preserve both the rubber and the wheel itself.
If the car will sit for an extended period, keep the tires at proper pressure and move the vehicle occasionally to change the contact patch. Some owners also use stands to reduce load on the tires during long-term storage, though the suspension should be supported thoughtfully rather than left hanging carelessly. A simple storage routine pays off later in smoother driving and fewer surprises when the car returns to the road.
How long do tires on a 1932 Hupmobile typically last?
Tire life on a 1932 Hupmobile is usually judged more by age than by miles, because collector cars often see limited annual use. A sensible rule is to begin careful evaluation once tires are around five to seven years old and to treat about ten years as a point where replacement deserves serious consideration regardless of remaining tread. The DOT date code, if present on the tire, is the practical starting point for that age check.
A bias-ply tire can still look acceptable at a glance and yet have age-related hardening, internal deterioration, or sidewall cracking that makes it less suitable for road use. That is why a lightly driven pre-war car should not rely on tread depth alone. If the age is uncertain, a close inspection by a tire professional familiar with collector vehicles is usually a better guide than mileage history.
How often should tires on a 1932 Hupmobile be inspected?
Tires on a 1932 Hupmobile should be inspected before every drive, and they deserve an even closer look before tours, club events, or any longer outing. Check for sidewall cracking, cuts, bulges, uneven wear, and signs that the tire is losing pressure between drives. On tube-type vintage assemblies, the valve stem and the spare tire should also be part of the inspection routine rather than afterthoughts.
Regular inspection matters because many collector-car tire issues show up as age-related problems long before they become tread-wear problems. A short local drive can mask a weak tube, an old valve stem, or a sidewall beginning to fail. Catching those issues early is one of the simplest ways to protect both the car and the time invested in getting a 1932 Hupmobile road-ready.
Restoration & Authenticity
What tires were originally fitted to the 1932 Hupmobile 216 Series?
A 1932 Hupmobile 216 Series would originally have used a bias-ply tire in the 550-18 size family, which aligns with normal American passenger-car practice for the early 1930s. Bias-ply construction was the standard for the era, and the available 550-18 replacements keep that construction type intact. Original-equipment branding could vary by market, dealer, or replacement history, so the size and construction are the first authenticity points to anchor.
That makes 550-18 bias-ply the logical starting point for a historically correct restoration of a 216 Series. From there, sidewall appearance becomes the next authenticity question, since blackwall, whitewall, and double-whitewall choices can change the car's presentation significantly. If you are restoring for a judged event, period photography and Hupmobile club guidance are worth consulting before choosing the final sidewall style.
Does correct tire fitment matter for showing a 1932 Hupmobile?
Correct tire fitment does matter when showing a 1932 Hupmobile, especially in concours or authenticity-focused judging. Size, construction type, and sidewall appearance are all visible details that can affect how convincing the finished restoration appears. A car wearing the wrong rim diameter tire, the wrong size family for its model, or a sidewall treatment out of step with the restoration theme can stand out quickly to experienced judges.
For most pre-war Hupmobiles, staying with the proper bias-ply construction is part of maintaining the right visual and historical character. The smaller 216 Series, larger 322 Series, and 326 each need their own correct size, so model identification matters as much as the tire itself. Event rules can vary, so marque-club judging standards are the best final reference once the basic fitment is in place.
What is the difference between blackwall and whitewall 550-18 tires for the 1932 Hupmobile?
For a 1932 Hupmobile 216 Series using 550-18 tires, the difference between blackwall and whitewall options is primarily visual rather than dimensional. Blackwall, wide whitewall, and double-whitewall choices all remain within the same pre-war bias-ply size family, but they create very different period impressions. Blackwall tends to look more restrained, while whitewall and double-whitewall versions give the car a more formal and dressy appearance that many early-1930s American cars wore well.
The right answer depends on how the particular Hupmobile is being restored and how closely you want to mirror the look of its original delivery or a known period style. A conservative club sedan may call for a different visual treatment than a more upscale body style intended for show presentation. Matching the tire's sidewall to the rest of the restoration usually produces a more convincing result than choosing by style preference alone.
Safety & Road Use
Are 1932 Hupmobile tires safe for highway driving?
1932 Hupmobile tires can be suitable for highway use when they are the correct size, in sound condition, properly inflated, and matched to a well-maintained car. The listed 1932 Hupmobile fitments are all bias-ply, so they should be driven with the handling expectations appropriate to a pre-war automobile rather than judged by modern radial standards. On a car of this age, brakes, steering condition, suspension wear, and alignment often influence real-world confidence just as much as the tire itself.
That means the question is less about whether a 1932 Hupmobile can physically reach highway speeds and more about whether the entire vehicle is prepared for sustained road use. A freshly inspected bias-ply tire on a sound wheel is only one part of that equation. If you plan regular longer-distance driving, make tire condition and pressure checks part of a broader mechanical inspection instead of treating the tire as an isolated decision.
What inflation pressure should I use for 1932 Hupmobile tires?
Inflation pressure for a 1932 Hupmobile should be set with the vehicle manufacturer's original recommendation in mind and checked against the rated pressure shown for the tire you are using. Within the listed 550-18 choices, example load ratings are paired with 32 psi, including 1125 pounds at 32 psi for certain Firestone versions and 1000 pounds at 32 psi for a BFGoodrich whitewall version. Those figures are tire ratings, not a blanket instruction to use the same pressure across every 1932 Hupmobile size.
The safest approach is to confirm the exact size and tire model first, then use the maker's guidance together with the car's original specifications. Pressure should never be copied from one size to another simply because the vehicles share a year or brand. On a collector car, even a modest pressure difference can noticeably change ride quality, steering feel, and tread contact.
What should I check before taking a 1932 Hupmobile on a longer drive?
Before taking a 1932 Hupmobile on a longer drive, inspect each tire for cracking, cuts, bulges, exposed cords, irregular wear, and correct cold inflation pressure. Check the valve stems, look over the spare, and confirm that any tube-type assembly is holding air properly. Because the car is from the pre-war era, the tire inspection should happen alongside a broader look at wheel condition, brakes, steering, cooling, and fuel-system reliability.
A longer outing places more heat cycles and sustained load on the tires than a short local drive, so small issues deserve more attention than they might on a modern daily driver. It is also wise to confirm that lug fasteners are secure and that the jack and tools fit the wheels on the car. A careful pre-drive routine is one of the best ways to make a 1932 Hupmobile more enjoyable and less stressful on the road.
