The 1930 Elcar 130 Series comes from an era when independent automakers still gave buyers a distinctive alternative to the larger mass-market names, and tire selection remains part of preserving that character today. Prewar cars like this often demand closer attention to sizing than later vehicles because wheel and tire conventions were not yet standardized in the modern sense. The 1930 Elcar 130 Series uses bias-ply fitments, with both 30X6.75 and 700-18 appearing on this application. That creates a real choice between two very different vintage size formats, while 700-18 also opens the door to several brands, series, and sidewall presentations. Before choosing, it is worth confirming the exact wheel setup on the car and deciding whether the goal is traditional road use, restoration-oriented appearance, or both.
Which Tire Size Is Right for The 1930 Elcar 130 Series
The 1930 Elcar 130 Series uses two primary tire sizes, and the first step is confirming which wheel setup is actually on the car. These fitments differ not only by size code, but also by rim diameter, with 30X6.75 tied to a 5-inch rim diameter and 700-18 tied to an 18-inch rim. On a prewar vehicle, that wheel check matters before comparing brands, sidewall styles, or restoration-oriented tire choices.
30X6.75 is an antique diameter-by-section size, meaning the first number refers to the tire’s approximate overall diameter and the second refers to its nominal section width. It is a bias-ply fitment, which suits the traditional construction expected on a 1930-era vehicle and keeps the tire presentation in a period-appropriate format. This size is best understood as an early tire-sizing convention rather than a modern wheel-and-aspect-ratio code. If the Elcar carries this fitment, the key step is verifying the wheel diameter already on the car before moving ahead with any replacement decision.
700-18 is a numeric bias-ply size in which the leading number represents nominal section width, roughly 7.00 inches, and the final number identifies an 18-inch rim. On the 1930 Elcar 130 Series, it is a traditional vintage fitment with the broadest visible product selection, including Firestone, Lester, Excelsior, and STA offerings. Available sidewall treatments include blackwall, double-whitewall, and wide whitewall, along with series such as Firestone Balloon, Firestone Classic Bias Ply, Lester Classic Bias Ply, Comp H, and Transport Highway. This size deserves a closer look when appearance, load style, or intended use matters as much as basic fitment.
Sub-model fitment is straightforward here because the covered Elcar 130 Series sub-model uses the same two primary bias-ply tire sizes. Even so, checking the exact wheel setup still matters, since those sizes correspond to different rim diameters and vintage sizing conventions.
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1930 Elcar 130 Series 8 Cyl.
The 1930 Elcar 130 Series 8 Cyl. uses the same pair of primary bias-ply sizes found on this application, so tire selection centers more on the wheels installed on the car than on trim differences. Once the rim setup is confirmed, the choice becomes whether to stay with a traditional vintage presentation or compare the available 700-18 sidewall and series options.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1930 Elcar 130 Series Tires for Sale
Available 700-18 choices span Firestone, Lester, Excelsior, and STA, with several vintage series and sidewall treatments to compare. Blackwall, double-whitewall, and wide whitewall options appear here, along with meaningful differences in rim-width specification, weight, and load style.
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Bias Ply
Firestone Balloon 4.25 Inch Double Whitewall | 700-18
Owners researching tires for a 1930 Elcar 130 Series usually need to sort out vintage size format, wheel diameter, bias-ply selection, period-style appearance, and the basic inspections that matter before putting a prewar car back on the road.
Tire Size & Fitment
What tire size fits a 1930 Elcar 130 Series?
The 1930 Elcar 130 Series uses two primary tire sizes: 30X6.75 and 700-18. Both are bias-ply fitments, but they represent different vintage sizing systems and different wheel diameters, so they are not simply alternate labels for the same tire.
The practical decision starts with the wheels on the car. A prewar vehicle may have had wheels changed during its life, and these two sizes correspond to different rim diameters, so checking the actual wheel before choosing a tire is essential. Once that is confirmed, the next step is comparing period-style appearance and available product choices.
What size rim does a 1930 Elcar 130 Series use?
The 1930 Elcar 130 Series appears with two rim diameters depending on tire size: 30X6.75 is associated with a 5-inch rim diameter, while 700-18 uses an 18-inch rim. That makes wheel confirmation a basic part of tire selection on this application.
Vintage cars are often restored, modified, or repaired with parts from different periods, so the current wheel setup matters more than assumptions. Checking both the rim diameter and the wheel type already on the car helps prevent ordering the wrong size format. It also helps narrow the choice between a traditional antique-format tire and the broader 700-18 product range.
Why does the 1930 Elcar 130 Series have more than one tire size?
The 1930 Elcar 130 Series shows two primary tire sizes because this application spans two different vintage fitment conventions: 30X6.75 and 700-18. Both are bias-ply sizes, but they are expressed in different formats and tie to different wheel diameters.
That means the buyer should not treat the two sizes as interchangeable without checking the car. One Elcar may still carry a wheel setup matching the antique diameter-by-section size, while another may be using the 18-inch arrangement tied to 700-18. On a prewar vehicle, a quick wheel inspection often answers the fitment question faster than the size code alone.
Choosing the Right Tire
What should I consider when choosing a 700-18 tire for a 1930 Elcar 130 Series?
Start by confirming that the car actually uses the 700-18 fitment on an 18-inch rim, then compare the available bias-ply options by brand, tire series, sidewall style, and rim-width specification. This size is offered in several period-style configurations, from plain blackwall choices to whitewall treatments.
The right pick depends on how the Elcar is used and presented. A restoration-oriented car may call for a more traditional sidewall look, while a car intended for broader road use may push the decision toward load style and wheel compatibility. Looking at rim width, weight, and maximum load figures where available gives a better comparison than appearance alone.
What sidewall styles are available for 1930 Elcar 130 Series tires?
For the available 700-18 fitment, sidewall styles include blackwall, double-whitewall, and wide whitewall. Those choices can noticeably change the look of a 1930 Elcar 130 Series even when the tire size stays the same.
Sidewall selection is mainly an appearance decision, but it should still be made after the correct size and wheel setup are confirmed. A whitewall treatment can give the car a more formal prewar presentation, while blackwall keeps a simpler, more utilitarian look. Buyers focused on authenticity should compare the finished look against period photos or marque-specific restoration references.
What brands offer tires for the 1930 Elcar 130 Series?
The 700-18 fitment for a 1930 Elcar 130 Series is available from Firestone, Lester, Excelsior, and STA. Those brands appear across several tire series, including Firestone Balloon, Firestone Classic Bias Ply, Lester Classic Bias Ply, Comp H, and Transport Highway.
Brand alone should not make the decision. It helps to compare the full package: sidewall treatment, rim-width specification, weight, and load figure where one is stated. That approach is especially useful on a prewar car, where the tire’s visual character and compatibility with the wheel setup can matter just as much as the name on the sidewall.
Restoration & Appearance
Which tire should I choose for a period-style 1930 Elcar 130 Series?
A period-style 1930 Elcar 130 Series should start with the correct primary fitment already on the car, either 30X6.75 or 700-18, and remain in bias-ply construction. That keeps the sizing format and overall presentation aligned with the car’s prewar character.
From there, the decision becomes more visual and use-oriented. The 700-18 range offers several period-style choices, including blackwall, double-whitewall, and wide whitewall, so the car’s restoration direction matters. When exact originality is important, compare the tire’s look against period photographs, marque-club guidance, or other vehicle-specific historical references rather than relying on size alone.
Does correct tire fitment matter for a 1930 Elcar 130 Series restoration?
Correct tire fitment matters a great deal on a 1930 Elcar 130 Series because early tire sizing affects both appearance and hardware compatibility. Using the wrong vintage format or the wrong rim diameter can change the car’s stance and create a mismatch between tire and wheel.
Fitment also shapes how convincing the restoration looks. A prewar car with an appropriate bias-ply size and a sidewall treatment that suits the vehicle’s style will usually look more coherent than one wearing a mismatched setup. Even on a driver-quality restoration, verifying wheel diameter and choosing a tire that matches the car’s character is worth the extra effort.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1930 Elcar 130 Series?
Yes. Any change to wheels, hubs, suspension height, or body clearance can affect tire fitment on a 1930 Elcar 130 Series, especially because this application already spans two different vintage size formats. On an older car, decades of repairs or updates can matter just as much as the original specification.
A careful fitment check should include the actual rim diameter on the car, the wheel width, and visible clearance around fenders and steering components. Even when the tire size is correct in principle, an altered wheel setup can change what works in practice. That is why visual inspection and measurement are so important before replacement.
What should I inspect before driving a 1930 Elcar 130 Series on new tires?
Before road use, inspect the wheel condition, bead seats, valve hardware, and overall tire inflation, then look over steering and suspension parts for looseness or wear. On a 1930 Elcar 130 Series, the condition of the car around the tire matters almost as much as the tire itself.
A short test drive should be preceded by a final walkaround for clearance, especially at full steering lock and over suspension travel. It also helps to recheck lug hardware and confirm that the tires are seated properly after initial inflation. Prewar cars benefit from a cautious first outing rather than treating new tires as the only item that needed attention.
How should tires on a collector 1930 Elcar 130 Series be maintained?
Collector-car tires on a 1930 Elcar 130 Series should be checked regularly for pressure loss, sidewall cracking, tread wear, bulges, cuts, and signs of long-term age. Cars that spend much of their time parked can still develop tire problems even when the tread looks barely used.
Good storage habits matter just as much as inspection. Keeping the car away from prolonged sunlight, heat, moisture, and ozone sources helps preserve the rubber, and moving the vehicle occasionally can help avoid flat spotting during long storage periods. Any tire showing visible deterioration deserves closer evaluation before the car goes back on the road.
