Elcar 130 Series Tires

Elcar 130 Series automobiles came from a short but interesting period in early Depression-era American motoring, when independent makes were still building stylish cars while tire technology was shifting from earlier oversized formats toward more modern balloon-type sizing. Produced from 1930 through 1931, the Elcar 130 Series sits squarely in that transitional pre-war era, which is why tire selection is not as simple as matching the model name alone. Both antique-style and numeric size conventions appear for the same years here, even though the available products center on one wheel diameter. Before choosing a tire for an Elcar 130 Series, confirm the actual wheel size on the car and compare it with the year-specific size listing.

Elcar 130 Series Tire Size Guide

Elcar 130 Series models from 1930 to 1931 use 2 distinct tire sizes. One of those sizes uses the antique diameter-by-section format, where the leading number refers to the tire's outside diameter rather than the wheel diameter. That matters here because the size code alone does not tell you the rim diameter, so the wheel itself still needs to be confirmed before choosing a tire.

30X6.751930-1931Antique diameter-by-section

30X6.75 is an antique-format size listed for 1930 and 1931 Elcar 130 Series applications. In this format, 30 refers to the tire's approximate outside diameter in inches and 6.75 refers to section width, while the rim diameter is not carried in the size code itself. Use this size only after verifying the wheel and original fitment details on the specific Elcar 130 Series, since the size marking does not identify the rim diameter by itself.

700-181930-1931Numeric bias-ply

700-18 is a numeric bias-ply size listed for 1930 and 1931 Elcar 130 Series applications and it is the size with available products here. In this format, 700 indicates a nominal 7.00-inch section width and 18 is the wheel diameter, with listed products fitting 18-inch rims. Choose 700-18 when your Elcar 130 Series is equipped for the 18-inch fitment shown here; available products are bias-ply and a tube is required.

Elcar 130 Series Tires by Year

The year listing lets you narrow Elcar 130 Series tire choices by production year and then compare the sizes attached to that year. The leading number in 30X6.75 is the tire's outside diameter, not the wheel size, so the actual rim diameter still needs to be checked on the car. These listings cover a very short pre-war production run, making original paperwork, surviving wheel markings, and marque knowledge especially useful when two sizes appear for the same year.

Best Elcar 130 Series Tires for Sale

Available Elcar 130 Series tire options cover 1 listed size with 7 products from 4 brands. Choices include several sidewall styles and series types, so confirm the correct size and 18-inch rim diameter before selecting.

700-18 Products

These are the available products for 700-18.

Bias Ply

Firestone Balloon 4.25 Inch Double Whitewall | 700-18

Firestone - Firestone Balloon

SidewallDouble-Whitewall
Rim Diameter18 in
Rim Width3.75 - 4.00 in
Weight35 lb
Max Load1520@36 psi
Buy Now
Bias Ply

Firestone Balloon | 700-18

Firestone - Firestone Balloon

SidewallBlackwall
Rim Diameter18 in
Rim Width3.75 - 4.00 in
Weight26 lb
Max Load1520@36 psi
Buy Now
Bias Ply

Firestone Balloon 4.25 Inch Whitewall | 700-18

Firestone - Firestone Balloon

SidewallWide Whitewall
Rim Diameter18 in
Rim Width3.75 - 4.00 in
Weight30 lb
Max Load1520@36 psi
Buy Now
Bias Ply

Firestone | 700-18

Firestone - Firestone Classic Bias Ply

SidewallBlackwall
Rim Diameter18 in
Rim Width3.75 - 4.00 in
Weight29 lb
Max Load1520@36 psi
Buy Now
Bias Ply

Lester | 700-18

Lester - Lester Classic Bias Ply

SidewallBlackwall
Rim Diameter18 in
Rim Width—
Weight28 lb
Max Load—
Buy Now
Bias Ply

Excelsior Comp H | 700-18

Excelsior - Comp H

SidewallBlackwall
Rim Diameter18 in
Rim Width5 in
Weight25 lb
Max Load—
Buy Now
Military & Truck

STA Transport Highway | 700-18

STA - Transport Highway

SidewallBlackwall
Rim Diameter18 in
Rim Width6.00 - 6.50 in
Weight37 lb
Max Load2350@65 psi
Buy Now

Frequently Asked Questions

The FAQ below focuses on the two-size overlap seen on 1930 and 1931 Elcar 130 Series cars, how antique and numeric size codes differ, and how to sort through bias-ply options, sidewall styles, and period-correct restoration choices.

Size Basics & Fitment

The Elcar 130 Series uses two listed tire sizes across 1930 and 1931: 30X6.75 and 700-18. The 30X6.75 size is an antique diameter-by-section code, while 700-18 is a numeric bias-ply size with available 18-inch rim products. Every listed 700-18 product fits an 18-inch wheel, but 30X6.75 does not state rim diameter in the size code itself.

That means year alone is not enough to choose a tire for an Elcar 130 Series. Start by reading the size stamped on the existing tire if it is known to be correct, then measure or verify the wheel diameter on the car. If the car carries 18-inch wheels and matches the later balloon-style numeric fitment, 700-18 is the practical path from the currently listed choices.

On an Elcar 130 Series, 30X6.75 is an antique-style size marking rather than a modern wheel-and-section format. The 30 refers to the tire's approximate outside diameter in inches, and 6.75 refers to the section width. Unlike a modern size, the wheel diameter is not shown directly in that code.

That distinction matters because a buyer can easily mistake the first number for rim size when it is actually overall tire diameter. If your Elcar 130 Series is carrying antique-format markings, verify the wheel itself before making a tire decision. This is especially important on early 1930s cars, where size conventions were changing and more than one notation could appear within the same model years.

A 1930 Elcar 130 Series has 30X6.75 and 700-18 listed because the model sits in a period when tire sizing conventions overlapped. One size is written in antique diameter-by-section form, and the other is a numeric balloon-era bias-ply size tied to an 18-inch wheel. The two entries reflect different fitment conventions rather than a single simple one-size answer.

The practical takeaway is to identify the actual configuration of your specific Elcar 130 Series before choosing a tire. Check the wheel diameter, compare the existing tire size if it is trustworthy, and review any original service literature that came with the car. That extra step helps avoid ordering a tire that matches the model year but not the wheel and tire system on the car.

The currently listed Elcar 130 Series products in 700-18 are all bias-ply tires, and for this kind of pre-war fitment a tube is required. That applies to the listed 700-18 products regardless of sidewall style or series. The same tube-minded approach also fits the era represented by the 30X6.75 size notation.

When fitting tires to an Elcar 130 Series, treat tube selection as part of the complete assembly rather than an afterthought. The wheel condition, rim strip, and tube size all need to suit the tire and wheel combination. On older collector cars, careful tube installation and correct inflation matter just as much as choosing the right size stamped on the sidewall.

Buying the Right Tire

The best way to confirm the correct tire size for a 1931 Elcar 130 Series is to match the year listing with the wheel actually fitted to the car. For 1931, the listed sizes are 30X6.75 and 700-18, and the available 700-18 products fit 18-inch rims. Because 30X6.75 does not identify wheel diameter in the size itself, wheel inspection is essential.

Look for original wheel markings, compare the current tire size if the car has long-term known history, and use factory or club literature where possible. Collector cars often change wheels or tires over the decades, so the car in your garage may not match the assumption made from year alone. Confirming wheel diameter first will narrow the choice quickly and prevent a very expensive mismatch.

Elcar 130 Series tires in the listed 700-18 size are available in Blackwall, Wide Whitewall, and Double-Whitewall styles. Most of the available choices are blackwall, but there are also Firestone Balloon versions with a 4.25-inch whitewall or double whitewall treatment. All of those options remain bias-ply constructions within the current listings.

For a restoration-minded Elcar 130 Series, sidewall choice affects the car's visual character almost as much as wheel finish or hubcaps. Blackwalls usually suit a more restrained period appearance, while whitewall treatments create a more formal or display-oriented presentation. The right choice depends on the specific body style, the way the car is being restored, and the visual standard you want to maintain.

The listed Elcar 130 Series tire options come from Firestone, Lester, Excelsior, and STA. Firestone appears in both Balloon and Classic Bias Ply series, Lester is listed in a Classic Bias Ply version, Excelsior appears as Comp H, and STA appears as Transport Highway. All of those currently listed options are tied to the 700-18 size.

Brand choice for an Elcar 130 Series usually comes down to the look you want, the rim width you are working with, and whether you are aiming for a passenger-car presentation or a more utility-oriented specification. Comparing series and sidewall style is often more useful than chasing a brand name alone. The best match is the one that aligns with your wheel, the car's intended use, and the restoration goal.

The listed Elcar 130 Series tire series include Firestone Balloon, Firestone Classic Bias Ply, Lester Classic Bias Ply, Comp H, and Transport Highway. Those series represent different period-style approaches within bias-ply construction, ranging from passenger-car balloon and classic bias-ply patterns to the more truck-oriented Transport Highway entry. They also appear with different sidewall treatments and rim-width ranges.

For an Elcar 130 Series owner, series choice helps define both appearance and use character. A Balloon or Classic Bias Ply series generally aligns more naturally with a passenger-car restoration, while the Transport Highway option should be viewed in light of its Military & Truck attribute and wider listed rim range. Series names are useful shorthand, but wheel dimensions and intended presentation should drive the final decision.

Maintenance & Longevity

An Elcar 130 Series should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, electric motors, ozone sources, and petroleum contamination. Maintain proper inflation for the tire and avoid leaving the full vehicle weight in one position for very long periods. On a pre-war car with bias-ply tires and tubes, long static storage can create flat spotting and unnecessary stress.

If the Elcar 130 Series will sit for months at a time, roll it occasionally or use tire cradles to spread the load. Some owners also support the car lightly to reduce sustained weight on the casings while keeping the suspension in a natural state. Good storage habits help preserve both the tire structure and the ride quality when the car returns to road or show duty.

Tires on an Elcar 130 Series should be inspected before every drive and given a more thorough review at regular intervals even if the car is seldom used. On a pre-war collector car, age, tube condition, bead seating, sidewall cracking, tread separation, and inflation loss matter more than simple tread depth. Bias-ply tires can look presentable and still require careful attention.

A practical routine is to check inflation, visible cracking, valve stem condition, and any change in shape or stance each time the Elcar 130 Series leaves the garage. Schedule a deeper inspection at least seasonally, and sooner if the car has sat for a long time. Because these cars are often driven infrequently, problems develop from age and storage as often as from miles.

Tires on an Elcar 130 Series should be replaced when age, cracking, hardening, cord exposure, repeated air loss, impact damage, or structural distortion appear, even if the tread still looks usable. Collector tires often age out long before they wear out. On a pre-war car, that judgment should be conservative because failure at speed can damage both the car and its occupants.

Do not let an attractive appearance be the only standard for keeping tires on an Elcar 130 Series in service. Any tire with unclear age, long dormant storage history, or visible deterioration deserves close specialist review. Replacement timing should be driven by condition and age, not mileage alone, especially on a car that spends most of its life in storage, display, or occasional fair-weather use.

Restoration & Authenticity

The Elcar 130 Series is associated here with two size conventions: 30X6.75 and 700-18. The available products tied to the current listings are all bias-ply, and the series represented include Firestone Balloon, Firestone Classic Bias Ply, Lester Classic Bias Ply, Comp H, and Transport Highway. That mix shows the period overlap between older sizing language and balloon-era style fitments.

For a specific Elcar 130 Series restoration, originality should be checked against surviving factory literature, period photographs, and marque club knowledge rather than relying on the model name alone. Cars from this era were often altered during long service lives, and replacement tires may have changed format over time. The best restoration outcome comes from matching the car's actual wheel and historical presentation together.

Correct tire fitment can absolutely affect the value, authenticity, and judging outcome of an Elcar 130 Series. Judges and knowledgeable buyers notice whether the tire size, sidewall treatment, construction type, and overall stance suit the year and character of the car. A visibly incorrect diameter or sidewall style can alter the look of the entire restoration.

For that reason, Elcar 130 Series owners should treat tire choice as part of the restoration plan rather than a final cosmetic detail. Marque clubs, period photos, and preserved original cars are often the best references for how the finished car should sit and appear. Even when more than one size is associated with the model years, the right combination can make the restoration feel complete and convincing.

Elcar 130 Series tires in the listed 700-18 size are available in Blackwall, Wide Whitewall, and Double-Whitewall styles. Any of those can dramatically change the visual tone of the car, even when the tire construction remains bias-ply. Because the Elcar 130 Series falls in the early 1930s, sidewall style should be chosen with period appearance in mind rather than modern taste alone.

Blackwall is often the safest choice for a restrained, era-appropriate look, while whitewall treatments can suit a more formal or high-style presentation if supported by the specific restoration theme. The right answer for an Elcar 130 Series depends on the body, trim, and visual evidence for the individual car. When authenticity matters, compare the sidewall style to period photos and marque references before making the final call.

Safety & Road Use

A properly fitted, correctly inflated tire in the correct size can make an Elcar 130 Series roadworthy for the kind of careful use these early 1930s cars were designed to handle. The listed options are bias-ply tires, and they should be treated as period-style components rather than modern high-speed touring tires. Safety depends on the entire car being mechanically sound, not the tires alone.

Before taking an Elcar 130 Series onto public roads, evaluate brakes, steering, wheel condition, alignment, tube condition, and suspension as seriously as the tread itself. Even with fresh tires, an unrestored or partially sorted chassis can make the car unpredictable. These cars are best enjoyed at sensible speeds, on favorable roads, and with a driving style that respects their age and design.

Before driving an Elcar 130 Series, check tire inflation, visible sidewall condition, tread surface, valve stems, wheel fasteners, and whether the car is sitting level. On a pre-war car with bias-ply tires, it is also wise to look for signs of tube leakage, bead shift, or cracking that may have appeared during storage. A quick walk-around can catch problems that are easy to miss in the garage.

The next level is mechanical: confirm that the Elcar 130 Series brakes pull evenly, the steering has no alarming looseness, and the wheels run true once the car starts rolling. If the car has been parked for a long period, take the first drive as a systems check rather than a touring run. A short, gentle test loop is the best way to verify that the whole car is ready for regular use.

An Elcar 130 Series on period-style bias-ply tires should be driven at moderate speeds that suit both the tire design and the underlying chassis. These tires are intended to preserve correct driving character, not to transform the car into a modern highway cruiser. Appropriate speed is therefore governed by road conditions, tire condition, and the car's mechanical health as much as by any posted limit.

In practice, the best approach is to drive an Elcar 130 Series conservatively and build speed only after the tires, wheels, brakes, and steering have proven stable. Early 1930s cars are far happier on secondary roads and short fair-weather trips than on sustained fast traffic corridors. Keeping speeds sensible reduces heat, strain, and risk while preserving the feel that makes the car enjoyable in the first place.