Durant 70 Series Tires

Durant 70 Series uses two listed tire sizes for 1929: 29X5.50 and 550-19. The available 550-19 products fit 19-inch rims and are bias-ply tires, while 29X5.50 is an older diameter-by-section size where the code itself does not state the wheel diameter. That means the two sizes should not be treated as interchangeable just because they appear in the same model year.

The practical step is to inspect the wheels on the actual Durant 70 Series before choosing. If the car carries 19-inch rims and matches the later numeric format, 550-19 is the clear modern replacement path from the listed options. If the car is set up for 29X5.50, confirm the wheel specification against the car itself and any original references tied to that chassis or body configuration.

On Durant 70 Series, 29X5.50 is an antique diameter-by-section size. The 29 refers to the tire's overall outside diameter in inches, and the 5.50 refers to nominal section width in inches. Unlike modern and later numeric tire sizes, that first number is not the wheel diameter, so it should never be read as a 29-inch rim.

That distinction matters because many buyers naturally assume the first number is the wheel size. With Durant 70 Series, a 29X5.50 tire must be matched by confirming the actual rim diameter on the car and comparing it with the intended tire specification. When working on a 1920s car, the wheel, body style, and surviving restoration choices all deserve a close look before finalizing fitment.

A 1929 Durant 70 Series can show both 29X5.50 and 550-19 because the model year includes more than one tire specification. The difference is not merely a spelling change; these are two different sizing systems, with one using an older outside-diameter format and the other using a numeric size tied to a 19-inch rim. That usually points to a configuration split within the same model year.

For a buyer or restorer, the year alone is not enough to settle the choice. Check the wheel diameter, compare the existing tire markings if the car still has them, and use any surviving factory literature or marque references that apply to that specific Durant 70 Series. Taking that extra step helps avoid ordering a tire that matches the year but not the actual wheel setup.

Durant 70 Series definitely uses a 19-inch rim with the listed 550-19 tires. The antique-format 29X5.50 size does not reveal its rim diameter in the size code, because 29 is the overall tire diameter rather than the wheel size. That means Durant 70 Series rim diameter depends on which of the two listed tire specifications the car actually carries.

The safest approach is to measure the wheel or read the rim marking before deciding. If the car is already fitted with later-style numeric tires, 550-19 points directly to a 19-inch wheel. If the car is identified by the 29X5.50 format, confirm the wheel separately and treat the tire code as a dimensional description rather than a rim-size label.

To confirm the correct tire size for a 1929 Durant 70 Series, start with the wheel itself. If the car carries 19-inch rims and aligns with the later numeric format, the listed replacement size is 550-19. If the car is identified by the older 29X5.50 marking or period literature using that format, the size must be matched by verifying the wheel and overall original specification together.

A careful inspection in the garage usually tells the story. Look for tire markings on any surviving casings, measure the rim diameter, and compare the result with restoration records or marque references for that exact Durant 70 Series configuration. That process matters more on a one-year vintage application where multiple size systems appear within the same year.

Durant 70 Series tires in the available 550-19 products are offered in both blackwall and wide whitewall form. Both versions are BFGoodrich bias-ply tires in the same Silvertown Classic Bias Ply series, with the whitewall version specified as a 3.25-inch whitewall. The underlying size and rim fitment remain the same between those two sidewall treatments.

The choice comes down to the look you want on the finished Durant 70 Series. A blackwall typically supports a simpler, more understated period presentation, while a wide whitewall gives the car a brighter show appearance associated with many restored late-1920s and early-classic automobiles. Match the sidewall style to the restoration goal, not just to convenience.

The listed Durant 70 Series products are from BFGoodrich. Both available 550-19 options come from the BFGoodrich Silvertown Classic Bias Ply line, with one blackwall version and one 3.25-inch wide whitewall version. No additional brands are shown among the currently listed products for this model group.

That means brand choice is narrower than sidewall-style choice for this particular Durant 70 Series application. A buyer deciding among the listed products is really choosing between appearance options within the same brand and series, while first making sure the car actually uses the 550-19 fitment rather than the separate 29X5.50 specification.

A Durant 70 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. Collector cars that sit for long periods benefit from clean floors, stable temperature, and protection from moisture. On a vintage bias-ply setup, those basics help slow cosmetic and structural aging.

If the Durant 70 Series will be parked for an extended period, keep the tires properly inflated and move the car occasionally to reduce flat spotting. Many owners also use jack stands or tire cradles for longer storage cycles, while keeping only enough weight on the suspension to avoid strain. Good storage habits preserve both appearance and drivability.

Tires on a Durant 70 Series should be inspected before every drive and again during regular seasonal maintenance, even if the car covers very few miles. A vintage bias-ply tire can age visibly and internally while the car remains in storage, so sidewall cracking, tread separation, impact damage, and pressure loss all deserve close attention. Inner tubes and valve stems should be checked at the same time when fitted.

That inspection routine is especially important on a late-1920s car because low annual mileage can create a false sense of security. A Durant 70 Series used mainly for shows, tours, or short runs still asks a great deal from its tires each time it moves. Frequent inspection catches age-related problems before they become a road-use issue.

Tires on a Durant 70 Series should be replaced when age, cracking, hardening, bulges, repeated air loss, or any sign of structural deterioration appears, even if the tread still looks usable. Collector-car tires often age out long before they wear out. On an older bias-ply application, the condition of the casing matters more than remaining tread depth alone.

A Durant 70 Series that sees occasional use can still be riding on tires that are no longer trustworthy simply because they look presentable from a distance. Have aging tires evaluated during routine service and treat any questionable casing, tube, or sidewall as a replacement candidate. With vintage cars, time is usually the deciding factor, not mileage.

Durant 70 Series is associated here with two period-appropriate size specifications for 1929: 29X5.50 and 550-19. The available replacement products shown are BFGoodrich Silvertown Classic Bias Ply tires in 550-19, which align with the era and the listed 19-inch rim fitment. Because more than one size appears within the same model year, the original tire specification depends on the exact configuration of the car.

For restoration work, the best path is to match the tire to the individual Durant 70 Series rather than relying on the model year alone. Surviving wheel measurements, period photos, factory literature, and marque-club guidance can help determine whether the car should wear the antique-format size or the 19-inch numeric bias-ply fitment. Authenticity begins with that distinction.

Correct tire fitment can absolutely affect how a Durant 70 Series is viewed in both restoration judging and the collector market. Size, sidewall treatment, and overall period appearance all influence whether the car presents as thoughtfully restored or casually assembled. On an uncommon late-1920s automobile, those details are often noticed quickly by experienced judges and marque enthusiasts.

The practical takeaway is to treat tires as part of the restoration, not an accessory added at the end. Matching the right Durant 70 Series size and an appropriate sidewall style to the car's intended presentation can strengthen authenticity and visual balance. If the car will be judged, consult the relevant club standards and period references before settling on the final combination.

Durant 70 Series currently has listed 550-19 options in blackwall and wide whitewall form. Either style can change the character of the finished car considerably, with blackwall giving a more restrained period look and wide whitewall creating a brighter, more formal presentation. Since both are available in the same size and series, the decision is mainly one of restoration direction rather than basic fitment.

A restorer should choose the sidewall style that best matches the specific Durant 70 Series being recreated. Period photographs, trim level, wheel finish, and the broader styling theme of the car can all influence whether blackwall or whitewall looks more authentic. Consistency across the whole restoration usually matters more than choosing the flashier option.

A properly selected and well-maintained tire can make a Durant 70 Series suitable for careful public-road use within the limits of a late-1920s automobile. The listed 550-19 options are modern-manufactured bias-ply collector tires, but the car itself still has vintage steering, braking, suspension, and stability characteristics. Tire choice is only one part of the overall roadworthiness picture.

Before using a Durant 70 Series on the road, make sure the tire size matches the wheel, inflation is correct for the application, and the rest of the chassis is in sound mechanical condition. Even with fresh tires, a 1929 car should be driven with conservative speed, longer stopping distances, and constant awareness of traffic conditions. The car's age still sets the pace.

Before driving a Durant 70 Series, inspect tire pressure, visible sidewall condition, tread condition, valve stems, and any signs of tube-related leakage if the car is running a tube-type setup. Also verify that all four tires match the intended size and that wheel hardware is secure. On a vintage car, those simple checks can prevent the most common avoidable problems.

Beyond the tires, a Durant 70 Series deserves a full pre-drive walkaround that includes brakes, steering response, fluid leaks, and wheel bearing condition. The goal is not just to confirm that the car can move, but that it can stop, track straight, and handle normal road loads safely. A few minutes of inspection can save a difficult roadside failure.

A Durant 70 Series should be driven at modest, conservative speeds that respect both the tire type and the capabilities of a 1929 automobile. Even when fitted with fresh bias-ply tires, the car retains period handling, braking, and chassis behavior that do not compare to modern vehicles. Safe speed is therefore determined by the whole car, not by tread alone.

In practice, the best approach is to keep a Durant 70 Series within comfortable touring pace and to avoid sustained high-speed operation. Smooth steering inputs, gradual braking, and room for traffic changes matter far more than trying to keep up with modern freeway flow. A well-preserved vintage car is happiest when driven in a way that matches its era.