1930 Vehicle Tire Fitment Guide

30X6.00 is used on several 1930 medium-to-upper-range cars, including the 1930 Auburn 95 Series, 1930 Chrysler 77 Series, 1930 Graham Special, 1930 Graham Standard, 1930 Jordan 80 Standard, 1930 Jordan G, 1930 Reo 20 Series, and 1930 Viking 8 Cyl. This inch-based balloon size reflects a substantial but not top-tier prewar passenger-car fitment. Shoppers will often encounter the same applications under 6.00-18 when moving into product selection. For owners of restored cars, this paired sizing pattern is a reminder to verify both the size notation and the actual wheel diameter before selecting a replacement tire.

6.00-18 is one of the more widely shared 1930 18-inch bias-ply sizes, covering vehicles from Auburn, Chrysler, Graham, Jordan, Kissel, Reo, and Viking. It serves a broad middle range of the year’s passenger-car fitments and is the hyphenated companion to 30X6.00 on several applications. While no product listings are shown here under this exact size, the fitment itself remains important when identifying wheels and matching period-style construction. Because several makes used this size across different series, buyers should pay close attention to the exact model and whether the vehicle still retains its intended wheel setup.

25X3.75 is a small 1930 bias-ply application associated with the 1930 Austin 4 Cyl. It stands apart from the larger American passenger-car balloon sizes used across much of the year, reflecting the Austin’s compact scale and more specialized fitment needs. This is the sort of size where careful identification matters because visual comparison to larger 18- or 19-inch applications can be misleading. The Austin also appears with a 3.75-18 notation, so owners should verify which wheel and tire format their car currently uses. On smaller collector cars, wheel condition and tube compatibility deserve especially close attention.

3.75-18 is the companion small-car fitment for the 1930 Austin 4 Cyl. and represents a more compact 18-inch application than the majority of 1930 passenger-car sizes listed here. It helps illustrate how widely fitment could vary within the same year, from small imported cars up to large luxury models using much larger section widths and diameters. No product details are shown under this exact size here, so the emphasis for Austin owners should be on accurate identification of wheel diameter and the specific sizing format their car is set up to use. Small early wheels require careful inspection for age, corrosion, and bead-seat condition.

29X5.50 is a very common 1930 balloon size used across a broad group of makes, including Buick, Dodge, Durant, Elcar, Marmon, Peerless, Roosevelt, Studebaker, Willys-Knight, and Windsor. It represents the shared fitment territory of many mainstream and near-luxury cars from the period. Product shopping often moves to the companion 550-19 size, where blackwall and whitewall bias-ply options are available. Because this size spans many brands and model lines, it is best treated as a fitment family rather than a guaranteed interchange. Confirm the exact vehicle, wheel diameter, and any restoration changes before selecting a replacement.

Rim Diameter: 19 in  ·  Sidewalls: Blackwall, Wide Whitewall

550-19 is one of the most widely used 1930 tire sizes, appearing on vehicles from Buick, Dodge, Durant, Elcar, Gardner, Marmon, Nash, Peerless, Roosevelt, Studebaker, Willys-Knight, and Windsor. Available products are bias-ply BFGoodrich Silvertown Classic Bias Ply tires in blackwall and wide whitewall versions, both with a stated rim-width range of 2.50 to 3.00 inches and a listed load capacity of 1040 pounds at 32 psi. For owners seeking a 19-inch fitment with a distinctly prewar look, this size offers a straightforward period-style product path, but exact application should still be confirmed at the model level.

31X6.50 is a single-application 1930 bias-ply size tied to the 1930 Buick 50 Series. As a larger inch-based balloon designation, it sits above many common mid-range passenger-car sizes and points to a more substantial vehicle fitment. While no product listing is shown here under the exact 31X6.50 notation, the related hyphenated 650-19 size appears for the same model family. That means Buick owners should confirm which wheel diameter and tire format their car actually uses before ordering. On luxury-oriented prewar cars, preserving the proper visual proportion between wheel, body, and tire can be an important part of the selection process.

Rim Diameter: 19 in  ·  Sidewalls: Blackwall, Wide Whitewall

650-19 is a major 1930 fitment used on larger cars from Buick, Franklin, Graham, Hupmobile, La Salle, Marmon, Nash, Packard, Peerless, Pierce Arrow, and Studebaker. Product choices include Firestone and Lester bias-ply tires, with blackwall and wide whitewall styles available, plus Firestone Balloon options that specify 3.25 to 3.50 inch rim widths. One listed Firestone Balloon whitewall carries a load rating of 1430 pounds at 36 psi. This size serves as a useful bridge between broad year-level research and product selection because it combines multi-make usage with meaningful sidewall and series differences for a more tailored restoration or touring look.

31X7.00 is a larger 1930 bias-ply balloon size associated with the 1930 Buick 60 Series and 1930 Cadillac V8. It reflects the heavier, more prestigious end of the market, where tire proportions and carrying capability were naturally greater than on smaller six-cylinder passenger cars. Product selection generally continues under 700-19 for these applications, so buyers should verify whether the vehicle still uses the expected 19-inch wheel setup. When choosing between blackwall and whitewall offerings in this range, appearance goals often matter alongside fitment, especially on restored luxury cars where tire presentation is a prominent visual detail.

Rim Diameter: 19 in  ·  Sidewalls: Blackwall, Double-Whitewall, Wide Whitewall

700-19 fits some of the year’s larger and more upscale automobiles, including the 1930 Buick 60 Series, 1930 Cadillac V8, 1930 Duesenberg 8 Cyl., and 1930 Packard 740 & 745 Series. Available products include Firestone Balloon, Firestone Classic Bias Ply, and Lester choices, primarily in blackwall form, with a Firestone Balloon double-whitewall option also listed. Several Firestone Balloon products specify 3.75 to 4.00 inch rim widths and load ratings around 1570 pounds at 36 psi. For big 1930 luxury-car fitments, this size offers a blend of period-correct visual character and meaningful variation in tire series and sidewall treatment.

28X4.75 is a widely recognized 1930 size for lighter passenger cars, appearing on the 1930 Chevrolet 6 Cyl., 1930 Ford A Series, 1930 Plymouth 4 Cyl., and 1930 Whippet 96A. It represents a practical smaller balloon fitment typical of popular cars from the period. Product shopping usually transitions to 475-19, where blackwall and wide whitewall bias-ply choices are available. Because many surviving Ford and Chevrolet-based restorations have seen wheel, brake, or suspension changes over the decades, it is wise to confirm current wheel diameter and clearance rather than relying only on year-level identification.

Rim Diameter: 19 in  ·  Sidewalls: Blackwall, Wide Whitewall

475-19 is the 19-inch companion size used on the 1930 Chevrolet 6 Cyl., 1930 Ford A Series, 1930 Plymouth 4 Cyl., and 1930 Whippet 96A. Available products are Goodyear Deluxe All-Weather bias-ply tires in blackwall and 2.875-inch whitewall versions, both listing a 3-inch rim width and a maximum load capacity of 900 pounds at 32 psi. This size is especially relevant for owners seeking a recognizable prewar small-car tire profile with a choice between a more understated blackwall and a brighter whitewall look. It is a focused fitment category, but wheel condition and tube-related hardware should still be checked carefully.

29X5.00 appears on a group of 1930 six-cylinder and export-oriented applications, including the 1930 Chrysler 6 Cyl., 1930 Dodge DD, 1930 Durant 14 Series, 1930 Essex Super 6, 1930 Plymouth Export, and 1930 Pontiac 6 Cyl. This inch-based balloon size sits in the middle of the year’s fitment spectrum and serves a varied collection of mainstream cars. Product shopping often shifts to 500-19, where available offerings emphasize blackwall bias-ply construction. Because this size is shared across several makes, accurate model identification remains important, especially if the car has undergone wheel or chassis changes during restoration.

Rim Diameter: 19 in  ·  Sidewalls: Blackwall

500-19 is a shared 1930 bias-ply fitment used on Chrysler, De Soto, Dodge, Durant, Essex, Nash, Plymouth, Pontiac, and Willys applications. Product choices shown here include an Excelsior Comp H blackwall and a Firestone Dirt Track Ribbed Front blackwall, both in bias-ply construction, with the Firestone product listing a load capacity of 895 pounds at 32 psi and a 4.00 to 5.00 inch rim-width range. This product mix gives the size a more specialized flavor than many standard passenger-car fitments. Buyers should pay close attention to intended use and vehicle setup rather than assuming every 500-19 product serves the same purpose.

32X6.75 is a substantial 1930 bias-ply size associated with the 1930 Cunningham 9 and both 1930 Stearns-Knight H8-90 and 1930 Stearns-Knight J8-90 models. It belongs to the larger luxury-car end of the year’s fitment range and suggests a vehicle with considerable weight and presence. Product selection commonly follows the matching 700-20 notation, where several premium bias-ply blackwall and whitewall choices are available. For owners of these larger classic cars, confirming wheel diameter and current wheel width is especially important, since larger antique fitments can differ in appearance and mounting requirements more noticeably than smaller sizes.

Rim Diameter: 20 in  ·  Sidewalls: Double-Whitewall, Wide Whitewall, Blackwall

700-20 serves larger 1930 luxury applications including the 1930 Cunningham 9 and both 1930 Stearns-Knight H8-90 and 1930 Stearns-Knight J8-90. Available bias-ply products include Firestone Balloon and BFGoodrich Silvertown Classic Bias Ply options in blackwall, wide whitewall, and double-whitewall styles. Listed rim-width recommendations differ by product, including 3.75 to 4.00 inches on several Firestone Balloon choices and 5.00 to 5.50 inches on the BFGoodrich listings. Several products also carry load ratings in the 1700- to 1980-pound range. This size gives larger prewar cars a broad period-style selection, but wheel specifications must be matched carefully.

5.25-19 is a shared 1930 fitment for the 1930 De Soto 8, 1930 Elcar 75 Series, 1930 Erskine 53 Series, 1930 Gardner D Sedan& Phaeton, 1930 Graham Standard, 1930 Hupmobile S, 1930 Peerless 61A, and 1930 Windsor 69 Series. It represents an important middle range in the year’s 19-inch passenger-car lineup. While no current product listing is shown here under this exact size, its relationship to the corresponding 29X5.25 designation can help guide identification on cars that use older inch-based references. For research and ordering, careful attention to sidewall height, wheel diameter, and period size notation is essential.

31X6.75 is tied to the 1930 Duesenberg 8 Cyl. and 1930 Packard 740 & 745 Series, placing it among the year’s more prestigious and larger-car balloon tire applications. The size reflects the visual and structural requirements of upper-tier 1930 automobiles, where tire scale is part of the vehicle’s overall stance. Product selection generally continues under 700-19, where blackwall and limited whitewall-style options are available in bias-ply construction. For owners of high-end prewar cars, confirming whether the vehicle remains on its expected wheel diameter is especially worthwhile, since changes made during restoration can affect both fitment and appearance.

29X5.25 is used across a variety of 1930 models including the 1930 Elcar 75 Series, 1930 Erskine 53 Series, 1930 Gardner D Sedan& Phaeton, 1930 Graham Standard, 1930 Hupmobile S, 1930 Peerless 61A, and 1930 Windsor 69 Series. It is a useful example of a shared inch-based balloon size serving several different makes in the same general market range. The corresponding 5.25-19 notation often helps bridge vehicle research to product searches or wheel verification. Because this size appears on cars with different trim levels and restoration histories, buyers should confirm wheel details and current configuration rather than assuming visual similarity guarantees fitment.

31X6.00 appears on the 1930 Elcar 96 Series, 1930 Hupmobile C, 1930 Marmon 79 Series, 1930 Peerless Master, 1930 Ruxton 8 Cyl., 1930 Stutz L6 & L8, and 1930 Willys-Knight 66B Series. It is a larger 1930 passenger-car balloon size that spans several respected makes and more upscale applications. Product research for this fitment usually moves to 600-19, where a Lester wide whitewall bias-ply option is listed. Since product selection shown here is limited under the hyphenated size, accurate size identification becomes even more important before purchase, especially on restored cars where wheel substitutions are not uncommon.

Rim Diameter: 19 in  ·  Sidewalls: Wide Whitewall

600-19 is a 19-inch 1930 bias-ply fitment used on cars from Elcar, Hupmobile, Marmon, Nash, Peerless, Ruxton, Stutz, and Willys-Knight. The listed product is a Lester Classic Bias Ply wide whitewall, making this size notable for its more focused product presentation compared with some other 1930 applications. That can be attractive for owners seeking a distinct period luxury look, but it also means confirming exact fitment details is especially important. Because this size covers multiple makes and both six- and eight-cylinder cars, it should be matched to the specific vehicle rather than treated as a general 19-inch substitute.

31X6.20 serves a wide range of larger 1930 cars, including the 1930 Franklin 145 Series, 1930 Franklin 147 Series, 1930 Graham Custom, 1930 Hupmobile H & U, 1930 La Salle 340, 1930 Marmon Big 8, 1930 Packard 882 & 892 Series, 1930 Peerless 8 Cyl., and 1930 Studebaker President. It reflects a substantial balloon tire fitment used across premium eight-cylinder and upper-line models. Product selection typically carries over to 650-19, where buyers can choose between brands, series, and blackwall or whitewall presentation. On larger collector cars, preserving the intended tire proportion can be just as important as simply matching diameter.

30X6.20 is a shared 1930 bias-ply size for the 1930 Gardner 150 Series and 1930 Reo 25 Series. It occupies a less common niche in the year’s fitment range, making careful identification more important than with the more widely shared 5.50 or 6.00 series sizes. The associated hyphenated size is 650-18, where actual product choices are listed. For buyers researching one of these applications, the key is not just the nominal size but also the 18-inch wheel relationship and the appropriate rim-width range of the chosen product. That is especially relevant on vehicles that may have seen decades of service or restoration work.

33X6.75 is the largest inch-based size listed here and is associated with the 1930 Lincoln 8 Cyl. alone. This is a distinctly large luxury-car balloon fitment, suited to one of the year’s most imposing passenger-car applications. Product selection continues under the 700-21 designation, where multiple bias-ply options are available from Firestone and Michelin in blackwall, wide whitewall, and double-whitewall styles. Because 21-inch fitments are visually prominent and more specialized than common 18- and 19-inch sizes, Lincoln owners should confirm wheel diameter, rim width, and overall vehicle configuration before committing to a particular tire style.

Rim Diameter: 21 in  ·  Sidewalls: Blackwall, Wide Whitewall, Double-Whitewall

700-21 is a large 1930 bias-ply fitment used here on the 1930 Lincoln 8 Cyl. Available products include Firestone Balloon and Michelin Double Rivet offerings, with blackwall, wide whitewall, and double-whitewall sidewall styles represented. Several Firestone Balloon options specify 3.75 to 4.00 inch rim widths and list a maximum load capacity of 1930 pounds at 40 psi, while the Michelin product lists a 3.00 to 3.75 inch rim-width range. This size offers one of the broadest styling spreads among the year’s larger luxury applications, making it especially appealing for owners balancing road use, restoration goals, and visual presentation.

28X5.25 is a compact-to-midrange 1930 balloon size associated with the 1930 Marquette 6 Cyl. and 1930 Oldsmobile 6 Cyl. It illustrates how closely related makes could share similar fitment needs while still sitting apart from more common 5.50-section applications. The corresponding hyphenated size is 5.25-18, which helps tie this older inch-based notation to an 18-inch wheel reference. No product details are shown here under this exact designation, so vehicle owners should focus on confirming the wheel diameter and size format in use on the car. That is especially useful when comparing unrestored and previously restored examples.

5.25-18 is used on the 1930 Marquette 6 Cyl. and 1930 Oldsmobile 6 Cyl., making it a focused 18-inch fitment within the broader 1930 passenger-car field. It corresponds to the older 28X5.25 notation and sits between the smaller 4.75-series sizes and the more common 5.50-series applications. Even without a listed product here under the exact size, it remains an important identifier when sorting out wheel diameter and tire profile on cars that may have changed hands or configurations over many decades. For accurate ordering, owners should compare the tire size on the vehicle, wheel measurements, and the model-specific fitment listing.

30X5.77 is an unusual 1930 bias-ply fitment associated with the 1930 Packard 726 Series and 1930 Studebaker President. Compared with more familiar 5.50, 6.00, or 6.50 sizes, this designation stands out and deserves especially careful verification before purchase. It is paired here with a 30x5 notation rather than a common hyphenated wheel-diameter format, which can make identification less straightforward for restorers and collectors. On vehicles of this level, preserving the correct overall stance often matters as much as selecting a period-looking tread or sidewall style. Accurate wheel and size confirmation is the best starting point.

30x5 is listed for the 1930 Packard 726 Series and 1930 Studebaker President, alongside the closely related 30X5.77 designation. This format reflects an older prewar sizing style and should be treated carefully rather than assumed interchangeable with more common balloon sizes. Because no product details are presented here under 30x5, this size is primarily a fitment identifier that helps owners of these specific models narrow their search. On restored premium cars, confirming the actual wheel and tire specification currently on the vehicle is essential, especially if replacement wheels, previous-era tires, or reproduction components have been installed.

32X6.20 is a larger 1930 bias-ply application shared by the 1930 Packard 733 Series and 1930 Stutz M. It sits in the upper end of the year’s luxury-car fitment range and reflects the larger overall tire dimensions used on substantial prewar automobiles. Product shopping for this fitment generally follows the 650-20 designation, where Firestone, Denman, and Deka offerings are listed. Those products introduce a wider mix of classic passenger and truck-oriented bias-ply choices, so buyers should review intended use and wheel compatibility carefully. For these cars, exact fitment and visual proportion are both important parts of tire selection.

Rim Diameter: 20 in  ·  Sidewalls: Wide Whitewall, Blackwall

650-20 fits the 1930 Packard 733 Series and 1930 Stutz M and offers a varied product range compared with many 1930 sizes. Listed bias-ply choices include Firestone in blackwall and wide whitewall styles, along with Denman Highway and Deka Classic Truck blackwall products. Firestone options carry a stated load capacity of 2120 pounds at 60 psi and a broad listed rim-width range of 3.00 to 5.00 inches. Because this size spans both passenger-oriented and truck-series products, selection should be guided by the vehicle, the desired appearance, and the use case rather than by size alone.