1930 Elcar Tire Fitment Guide

1930 Elcar vehicles use eight sizes spread across five series. The 130 Series and 140 Series use 30X6.75 and 700-18 on 18-inch rims. The 75 Series uses 29X5.25 and 5.25-19 on 19-inch rims, the 95 Series uses 29X5.50 and 550-19 on 19-inch rims, and the 96 Series uses 31X6.00 and 600-19 on 19-inch rims. Available product coverage appears in 700-18, 550-19, and 600-19, with listed rim-width ranges of 3.75 to 4.00 inches for 700-18 and 2.50 to 3.00 inches for 550-19.

That means year and make alone are not enough for a 1930 Elcar tire choice. Start by identifying the series on the car, then confirm whether you are matching the antique diameter-by-section marking or the numeric bias-ply equivalent used with that same model. Once you have the correct series and wheel diameter, it becomes much easier to narrow the tire to the proper family and decide whether you want a blackwall or whitewall look where those choices are available.

On a 1930 Elcar, 30X6.75 is an antique diameter-by-section size. The first number, 30, refers to the tire's overall diameter in inches, while 6.75 refers to nominal section width. That format predates the later numeric style that uses the wheel diameter directly in the size code, and on 1930 Elcar it applies specifically to the 130 Series and 140 Series.

A size like 30X6.75 is helpful for restoration research because it reflects the way many pre-war tires were originally described. Buyers should still confirm the actual wheel application on the car, since the same two Elcar series are also associated with the numeric 700-18 designation. If your goal is a historically appropriate presentation, understanding that relationship keeps you from assuming two different-looking size markings automatically mean two completely different fitments.

On a 1930 Elcar, 700-18 is a numeric bias-ply size. The 7.00 figure refers to nominal section width, and the 18 identifies the wheel diameter in inches. That size is used on the 130 Series and 140 Series, and current offerings in that fitment include Firestone bias-ply tires with blackwall, wide whitewall, and double-whitewall sidewall treatments.

Numeric sizes like 700-18 are often easier for modern buyers to follow because the wheel diameter is stated plainly in the code. For a 1930 Elcar owner, that makes it a practical cross-check against the wheel on the car before choosing a tire. It is still worth comparing the sidewall style and the visual character you want, especially if the car is being restored with attention to period appearance rather than simply being readied for occasional driving.

1930 Elcar tire sidewall choices vary by size. In 700-18, Firestone offers blackwall, wide whitewall, and double-whitewall styles. In 550-19, BFGoodrich offers blackwall and wide whitewall versions, while 600-19 is offered as a wide whitewall from Lester. Every listed product is a bias-ply tire, so the visual choice is mainly about sidewall presentation rather than radial versus bias construction.

That matters because pre-war cars can look noticeably different depending on whether they wear blackwalls or whitewalls. A more restrained restoration may lean toward blackwall, while many owners prefer a broad whitewall for the richer late-1920s and early-1930s visual character it gives the car. Before choosing, think about whether the Elcar is being prepared for touring, local shows, or a more exacting authenticity standard where sidewall style can affect the final impression.

Three brands cover the currently listed 1930 Elcar sizes. Firestone appears in 700-18 for the 130 Series and 140 Series, BFGoodrich appears in 550-19 for the 95 Series, and Lester appears in 600-19 for the 96 Series. Each of those offerings is a bias-ply tire, and the available brand choice depends on which Elcar series and size family you are working with.

That size-by-size brand split means buyers should identify the car first, then look at the visual and dimensional characteristics available within that size. A 130 Series owner is choosing among Firestone sidewall treatments in 700-18, while a 95 Series owner is deciding between BFGoodrich blackwall and wide whitewall in 550-19. Brand preference still matters, but on a 1930 Elcar the correct series and size remain the first filter before any brand comparison becomes meaningful.

For the 1930 Elcar 130 Series and 140 Series in 700-18, Firestone appears in two series families: Firestone Balloon and Firestone Classic Bias Ply. The listed Firestone Balloon versions include blackwall, wide whitewall, and double-whitewall options, while the Firestone Classic Bias Ply entry in this size is listed as a blackwall. The load rating shown is the same at 1520 pounds at 36 psi, but the listed weights vary among the individual products.

That makes the real distinction one of styling and product presentation more than a dramatic spec change in the published rating. If the car's finished look is the priority, the whitewall and double-whitewall Balloon options create a different period impression than a plain blackwall. If you are comparing within 700-18, review the sidewall style you want and confirm the wheel falls within the listed rim-width range before settling on a specific Firestone version.

Published rim-width guidance is available for some 1930 Elcar sizes. Firestone 700-18 tires for the 130 Series and 140 Series list a rim-width range of 3.75 to 4.00 inches on an 18-inch rim. BFGoodrich 550-19 tires for the 95 Series list a rim-width range of 2.50 to 3.00 inches on a 19-inch rim. The listed 600-19 Lester product confirms a 19-inch rim diameter but does not add a rim-width figure in the available specifications.

That is why wheel measurement matters before mounting a pre-war tire, especially on a car that may have had wheel changes over the decades. The safest approach is to measure the actual rim and compare it to the range shown for the size you plan to use. If your car still wears original-style wheels, that check is usually straightforward and can prevent you from choosing a tire whose section shape is compromised by an incorrect rim width.

Within each 1930 Elcar series, the paired sizes shown for that model belong to the same wheel-diameter family. The 130 Series and 140 Series pair 30X6.75 with 700-18 on 18-inch wheels, while the 75 Series, 95 Series, and 96 Series pair their antique and numeric sizes around 19-inch wheels. That means the two size expressions listed for a given series are not separate front-and-rear fitments; they are alternate ways of identifying the same basic wheel-diameter application.

Original wheels can often stay in place when moving between those two size expressions for the same series, but the exact rim should still be checked before final selection. On the sizes that carry published rim-width guidance, compare your wheel to that range rather than assuming every 18-inch or 19-inch rim is automatically suitable. That is especially important with pre-war cars, where surviving wheels may have been repaired, swapped, or replaced long after the car left the factory.

A 1930 Elcar should be stored clean, dry, and out of direct sunlight, with the tires kept away from electric motors, battery chargers, furnaces, and other ozone-producing sources that accelerate sidewall aging. Bias-ply tires also benefit from stable inflation during storage, because they can develop temporary flat-spotting more readily than later radial designs when left in one position for long periods. Cool indoor storage is far kinder to a pre-war tire than a damp outbuilding or uncovered parking spot.

For a collector Elcar, it helps to move the car periodically so the same section of tread is not carrying the load month after month. Some owners also use wheel cradles or jack stands for long-term layups, though the suspension should be supported correctly if that route is taken. A simple storage routine preserves both the tire and the restored appearance, which matters just as much on a pre-war car as the miles it may or may not accumulate each season.

Tires on a 1930 Elcar usually age out before they wear out, because most surviving cars are driven sparingly. A sensible rule is to begin evaluating them closely once they reach about five to seven years of age and to treat around ten years as a point where replacement should be strongly considered, even if the tread still looks healthy. The DOT date code on the tire remains the most useful age reference, supplemented by the tire's overall condition.

Mileage alone is a poor guide on a collector car, since long periods of storage can harden rubber and weaken a tire that has covered very few miles. Sidewall cracking, recurring air loss, vibration, or a visibly aged tread surface all deserve attention sooner rather than later. If the Elcar is used only for occasional touring or local events, planning around tire age rather than wear is the more realistic way to keep the car dependable.

Tires on a 1930 Elcar should be inspected before every drive and given a more thorough check before any longer outing. Look for sidewall cracking, cuts, bulges, embedded debris, irregular tread wear, and signs of a tire losing pressure between drives. Because these are bias-ply pre-war fitments, it is also wise to pay close attention to the spare and to the condition of the valve stems, which are easy to overlook on a seldom-driven collector car.

That routine matters more on an infrequently used antique than on a modern daily driver, because deterioration can creep in while the car is parked rather than while it is accumulating miles. A quick walkaround before startup catches issues early and gives you time to address them before they turn into roadside problems. For event days or touring weekends, include tire pressure and visual inspection as part of the same pre-drive habit as checking fluids, lights, and brake feel.

The 1930 Elcar 130 Series is associated with 30X6.75 and 700-18, both bias-ply fitments tied to its 18-inch wheel application. For a car of this 1930 vintage, bias-ply construction is the era-correct type, and the antique diameter-by-section size marking reflects the period way tires were often described. No original equipment brand should be assumed from replacement availability alone, since surviving production details can vary by market, equipment level, and individual car history.

For restoration work, the useful takeaway is that the 130 Series belongs in the 18-inch bias-ply family rather than in a later metric or radial category. If authenticity is a major goal, confirm the exact size expression and sidewall treatment against factory literature, period photos, or Elcar club resources before settling on the final tire. That extra step helps separate a merely usable fitment from one that also looks right for a carefully restored pre-war automobile.

Correct tire fitment matters on a 1930 Elcar because pre-war judging often considers the tire's size family, construction type, and sidewall appearance as part of the car's overall authenticity. A bias-ply tire in the correct 18-inch or 19-inch family fits the period, while a visibly modern construction or the wrong sidewall treatment can stand out quickly on a car from 1930. Even when two size markings relate to the same series, the choice still influences how period-correct the finished car appears.

Show standards are rarely identical from one event to another, so serious restorers should compare their planned tire choice with the rules used by the hosting club or judging body. Some events are satisfied with a correct-looking reproduction tire, while others may be stricter about sidewall style and the exact size convention used on the car. That is why tires should be selected as part of the restoration plan, not treated as a last-minute cosmetic decision.

For the 1930 Elcar 95 Series, both listed BFGoodrich 550-19 tires share the same basic fitment, construction, rim-width range, and load rating. Each is a bias-ply tire on a 19-inch rim with a published rim-width range of 2.50 to 3.00 inches and a load figure of 1040 pounds at 32 psi. The visible difference is sidewall treatment, with one presented as a blackwall and the other as a 3.25-inch wide whitewall.

That makes the choice mainly one of restoration character rather than core application. A blackwall gives the car a more restrained look, while the wide whitewall creates a stronger late-1920s and early-1930s visual statement that many owners prefer on full classic-era cars. If the Elcar is being judged, compare that choice to period photography and event expectations so the tire supports the rest of the car's finish instead of drawing attention for the wrong reason.

1930 Elcar tires can be appropriate for highway use when they are in good condition, correctly fitted, and driven within the limits of both the tire and the car. The listed 700-18, 550-19, and 600-19 offerings are all bias-ply tires, and no speed ratings are shown in the available size markings for these products. On a pre-war automobile like a 1930 Elcar, the vehicle's brakes, steering, suspension, and overall mechanical condition are often the more important practical limits at normal road speeds.

Safe road use starts with realistic expectations. A properly prepared 1930 Elcar should be driven with the manners of an early-1930s car in mind, not like a modern sedan on contemporary radial tires. Before any highway trip, inspect the tires closely, verify pressures when cold, and make sure the rest of the chassis is equally ready for sustained use. Tire age, storage history, and overall vehicle condition are just as important as the size stamped on the sidewall.

Inflation pressure on a 1930 Elcar should be matched to the exact tire size and product you are using rather than borrowed from a different Elcar series. The listed 700-18 products show a load figure of 1520 pounds at 36 psi, and the listed 550-19 products show 1040 pounds at 32 psi. Those are tire ratings, not universal car settings, and they should be considered alongside the original Elcar recommendations for the specific series and the real operating load on the car.

That is why pressure should be treated as a model- and tire-specific setup item rather than a single make-wide number. Use the owner's manual or trusted period specifications for the vehicle target, then compare that with the reproduction tire's published limits and intended use. A car prepared for occasional solo driving may not want the same pressure you would choose for a fully loaded touring run, so small adjustments should be made thoughtfully and checked against wear and handling.

Before a longer drive in a 1930 Elcar, inspect each tire for cracking, cuts, bulges, uneven wear, tread separation, and any sign that pressure has dropped since the last outing. Check cold inflation pressures, look over the valve stems, and do not ignore the spare, since an aged spare is of little use on a touring day. The tire check should be part of a broader pre-drive inspection that also covers brakes, wheel bearings, steering play, fluids, and the general readiness expected of a ninety-plus-year-old automobile.

Longer trips place more heat and continuous load into a tire than a short local drive, so small issues become more important. A 1930 Elcar that has been sitting for weeks or months deserves an especially careful once-over before it is asked to run steadily at road speed. Building a consistent pre-trip routine protects the tires, but it also tends to uncover other age-related issues early enough that the drive stays enjoyable instead of becoming a recovery exercise.