1929 Chrysler Tire Fitment Guide

1929 Chrysler vehicles use six model-specific tire sizes spread across three model lines. The 65 Series uses 28X5.50 and 550-18, the 75 Series uses 30X6.00 and 6.00-18, and the Imperial uses 30X6.75 and 700-18. Every one of those sizes is an 18-inch fitment, but the section widths and overall size families differ by model. Where product fitment details are available, 550-18 appears on rims from 3 to 4 inches wide depending on product, and 700-18 appears on 3.75 to 4.00 inch rims.

That means a 1929 Chrysler owner should identify the exact model before choosing a tire size. Even though all three Chrysler lines use 18-inch wheels, the 65 Series, 75 Series, and Imperial do not interchange tire sizes simply because the rim diameter matches. Once the model is confirmed, the next step is deciding whether you are following the antique diameter-by-section style shown in period references or the numeric bias-ply equivalent used in current replacement offerings for that same model family.

On a 1929 Chrysler, 28X5.50 is an antique diameter-by-section bias-ply size. The first number, 28, refers to the tire’s overall diameter in inches, while 5.50 refers to its nominal section width. That format was common in the late 1920s, especially during the transition into balloon-tire sizing, and it identifies the original-style size family used on the Chrysler 65 Series.

A buyer usually encounters 28X5.50 when researching period-correct fitment rather than when comparing modern size nomenclature. It is most useful as a reference point for the 65 Series, helping you connect original literature or restoration discussions to currently available replacement sizes such as 550-18. If your Chrysler still has older wheels or long-held restoration notes, seeing 28X5.50 on the car or in paperwork is a strong clue that you should stay within the 65 Series tire family rather than moving to the larger 75 Series or Imperial sizes.

On a 1929 Chrysler, 550-18 is a numeric bias-ply size. The 5.50 indicates the nominal section width in inches, and the 18 indicates the wheel diameter in inches. It is the replacement-style size associated with the Chrysler 65 Series, and available products in that size appear in several classic sidewall treatments including blackwall, wide whitewall, and double-whitewall versions.

That code matters because it is easier to match to currently available reproduction tires than the older 28X5.50 style. For a 65 Series owner, 550-18 is usually the more practical shopping reference when comparing Firestone, BFGoodrich, and Excelsior offerings, while still staying inside a period-correct bias-ply construction. It also provides a clearer path for checking rim-width compatibility, since current products list wheel fitment ranges and load information that help narrow the right tire for the car’s existing wheels.

1929 Chrysler tire choices include more than one period-style sidewall treatment, but the exact range depends on size. In 550-18, blackwall, wide whitewall, and double-whitewall options are available. In 700-18, blackwall, wide whitewall, and double-whitewall options are also available. Those styles all remain within the broader visual language of the era, with blackwalls giving a simpler look and whitewall variants adding a more formal appearance often associated with upscale late-1920s cars.

The right choice depends on how you want your Chrysler to present. A blackwall can suit a more restrained touring look, while a whitewall or double-whitewall can better match a dressier restoration, especially on a larger car such as the Imperial. Event judging standards can be particular about sidewall width and style, so if the car is being restored for show use, it is worth checking period photos, club guidance, and marque references before settling on the visual treatment.

Current 1929 Chrysler tire offerings shown here come from Excelsior, Firestone, and BFGoodrich, depending on size. The 550-18 size includes products from all three brands, while 700-18 is represented by Firestone offerings. All of the listed products are bias-ply tires, which is consistent with the construction type expected on a Chrysler of this era and keeps the tire choice aligned with the car’s original road feel and proportions.

Brand choice becomes more meaningful after you have confirmed the correct size for your model. A 65 Series owner has the broadest brand spread in the available listings, while an Imperial owner looking at 700-18 is choosing within a Firestone-heavy group with several sidewall appearances. If matching a set to an existing spare or pursuing a judged restoration, compare brand, sidewall treatment, and the tire series itself rather than choosing solely by the size code.

For a 1929 Chrysler Imperial in 700-18, Firestone Balloon and Firestone Classic Bias Ply offerings share the same listed load rating of 1520 pounds at 36 psi and the same 18-inch rim diameter with 3.75 to 4.00 inch rim-width fitment. The visible difference within the available range is largely presentation and series selection: Firestone Balloon appears in blackwall, wide whitewall, and double-whitewall forms, while Firestone Classic Bias Ply is shown here in blackwall. Weight also varies among the listed versions.

That makes the choice less about basic fit and more about the look and series character you want on the car. If you are building an Imperial with a stronger period luxury appearance, one of the whitewall Balloon versions may better suit the car’s stature. If you want a simpler visual treatment while staying within an era-appropriate bias-ply Firestone family, the blackwall choices provide that path without changing the core 700-18 fitment.

Rim-width guidance is available for some 1929 Chrysler sizes and should be checked before you settle on a product. In 550-18, listed products fit rims from 3 inches to 4 inches wide depending on brand and series, with individual products shown at 3.00, 3.25, and 4.00 inches. In 700-18, listed products are intended for 3.75 to 4.00 inch rims. Those figures apply to the specific sizes where current product details are listed.

That range is important because the same 18-inch wheel diameter does not guarantee the same wheel width from one Chrysler model line to another. A 65 Series owner looking at 550-18 should compare the actual wheel against the product’s stated rim fitment, and an Imperial owner should do the same with 700-18. If the car has replacement wheels or mixed wheels from an older restoration, measuring the installed rim can prevent ordering a tire that is period-correct in size but mismatched to the wheel.

Original 1929 Chrysler wheels can only be used with the tire sizes that belong to the correct model family, even though all six listed sizes share an 18-inch rim diameter. A 65 Series uses 28X5.50 or 550-18, a 75 Series uses 30X6.00 or 6.00-18, and an Imperial uses 30X6.75 or 700-18. The shared diameter helps, but it does not make those sizes interchangeable across the whole Chrysler lineup.

The practical question is not just wheel diameter but whether the wheel width and the car’s original tire family align with the replacement tire you want to run. Current 550-18 and 700-18 products show different rim-width expectations, which is a reminder that the larger Imperial sizes were built around a broader tire package than the smaller 65 Series. If your Chrysler has had wheels swapped over the years, inspect and measure them before assuming any 18-inch vintage tire will fit correctly.

A 1929 Chrysler should be stored in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing equipment that can accelerate sidewall cracking. Keep the tires properly inflated while the car is parked, and move the car periodically so the same contact patch is not bearing the load for months at a time. Because 1929 Chrysler tires are bias-ply constructions, they are more prone to temporary flat-spotting during long static storage than a modern radial would be.

For longer layups, many collectors either roll the car a short distance every few weeks or support it in a way that reduces prolonged strain on the tires without leaving the suspension hanging unnaturally. Clean, dry floors matter too, since standing moisture can age rubber and affect wheels over time. If the car carries a side-mounted or rear-mounted spare, include that tire in your storage routine so it does not quietly age out while the road tires get all the attention.

Tires on a 1929 Chrysler should be judged more by age and condition than by miles driven. Collector-car tires often see limited annual mileage, so a tire that still shows good tread can still be old enough to deserve close evaluation. A sound rule is to inspect carefully once tires reach the five- to seven-year range and to consider replacement at around ten years regardless of tread, using the tire’s date code and visible condition as part of the decision.

That timeline is especially relevant for a car like a 1929 Chrysler, where long idle periods are common and age-related cracking can appear before tread wear becomes meaningful. Whitewall tires also deserve extra cosmetic attention because discoloration can hide small surface changes if they are not cleaned and inspected regularly. A Chrysler that only comes out for tours and shows may seem lightly used, but time, storage conditions, and repeated heat cycles matter more than odometer miles in determining service life.

Tires on a 1929 Chrysler should be inspected before every drive, and again before any extended tour or event where the car will spend sustained time on the road. Look for sidewall cracks, cuts, bulges, uneven wear, tread separation signs, and pressure loss. On a vintage Chrysler, it is also wise to inspect valve stems closely and to pay attention to the spare, since a long-stored spare often becomes the oldest tire on the car.

Frequent inspection matters because a low-use collector car can sit long enough for age issues to develop between outings. A quick walkaround is helpful, but a proper pre-drive check should include feeling for low pressure, looking inside and outside sidewalls, and making sure no tire has gone visibly out of round after storage. If the car begins steering differently, pulling, or riding harshly, inspect the tires before assuming the problem is purely suspension-related.

A 1929 Chrysler 65 Series originally belonged to the bias-ply era, and the size family associated with it is 28X5.50 and 550-18. That means the car’s correct historical tire type is a period-style bias-ply rather than a later radial construction. The exact sidewall appearance could vary with market taste and trim presentation, but the important baseline for authenticity is staying within the proper 65 Series size family and maintaining an era-appropriate construction type.

For restoration work, that gives you a clear starting point even before you get into finer judging details. If the car is being restored to a factory-correct or high-level show standard, verify the exact sidewall treatment and any market-specific preferences through Chrysler club references, period photos, and restoration literature. Avoid assuming that an 18-inch tire from another 1929 Chrysler model is close enough, because the 65 Series uses the smallest tire family in the lineup.

Correct tire fitment matters a great deal when showing a 1929 Chrysler because judges and knowledgeable enthusiasts notice size family, construction type, and sidewall treatment quickly. A 65 Series, 75 Series, and Imperial do not share one common tire size, so using the wrong size family can stand out even before finer details are considered. On a pre-war Chrysler, an obviously incorrect sidewall style or a tire that looks too small or too large for the model can also disrupt the car’s stance and period character.

That does not mean every event applies the same standards, but it does mean tire choice should be made with the car’s intended use in mind. Touring-focused owners may prioritize a tasteful period look, while concours-minded restorers usually need to be stricter about matching the proper model-specific size and sidewall appearance. Before a judged event, compare your tire choice with period advertising, factory photos, and the expectations of the sponsoring club so the tires support the restoration instead of becoming a distraction.

On a 1929 Chrysler, the difference between blackwall and whitewall tires is primarily visual, but that visual choice carries real restoration significance. Available 550-18 and 700-18 products include blackwall, wide whitewall, and double-whitewall treatments. Blackwalls present a simpler, more understated period look, while whitewall and double-whitewall styles create a more formal appearance that often suits late-1920s luxury and near-luxury cars especially well.

The right answer depends on the model and the restoration goal. A restrained touring restoration may look entirely appropriate on blackwalls, while a dressed-up Imperial or a Chrysler restored to highlight its upscale showroom presence may benefit from a whitewall treatment. If originality is the priority, use period photography and marque guidance to confirm whether the car’s current presentation matches how you want the restoration judged rather than choosing a sidewall style strictly by personal taste.

1929 Chrysler tires can be suitable for normal road use when they are the correct size, in sound condition, and inflated appropriately, but they remain bias-ply tires designed around vintage vehicle behavior. No speed-rated markings are shown here for the available 550-18 and 700-18 products, so the practical limit is usually defined more by overall condition and by the car itself than by any modern high-speed rating. A 1929 Chrysler also carries period braking, steering, and suspension characteristics that deserve more caution than a modern car at sustained highway speeds.

For most owners, that means treating highway use as a matter of preparation and realism rather than assuming a reproduction tire turns a pre-war Chrysler into a modern interstate cruiser. A well-sorted car on fresh, correctly fitted tires can handle touring and secondary-highway driving comfortably, but speed should stay appropriate to road, weather, and the car’s mechanical state. If the car has been dormant for a long period, build confidence gradually with shorter drives before committing to a long high-speed run.

Inflation pressure for 1929 Chrysler tires should start with the vehicle’s original guidance for the specific model, then be checked against the tire manufacturer’s own rating for the exact reproduction tire being used. Among the listed products, 550-18 examples show load figures of 1000 pounds at 32 psi and 1125 pounds at 32 psi, while 700-18 products show 1520 pounds at 36 psi. Those figures belong to those specific sizes and products and should not be transferred from one Chrysler size family to another.

That matters because tire pressure affects ride, handling feel, wear pattern, and the way a bias-ply tire supports the car. If your Chrysler is lighter or heavier by model, or if it still carries original wheels and suspension geometry, the final pressure choice may be different from another 1929 Chrysler even within the same make. Use the owner’s manual, the tire maker’s specifications, and a careful road test to dial in pressure rather than assuming one universal number works across the full range.

Before taking a 1929 Chrysler on a longer drive, inspect each tire for sidewall cracking, cuts, bulges, visible wear issues, and proper inflation, and do not forget the spare. Confirm that the valve stems are in good condition and that the tires still hold pressure evenly after sitting. On a pre-war Chrysler, the tires are only one part of the equation, so a sensible pre-drive check should also include brakes, steering play, wheel bearings, cooling system condition, and basic fuel-system reliability.

A longer outing is not the time to discover a tire that looked acceptable in the garage but has begun separating or losing air once warmed up. It also helps to verify that your jack and wheel tools actually fit the car and that the spare is the correct size family for the model. With a 1929 Chrysler, confidence comes from preparation: good tires, correct pressure, a usable spare, and a broader mechanical check that respects the age of the car.