Durant 75 Series Tires

Durant 75 Series uses two tire sizes for 1928: 29X5.50 and 550-19. The 29X5.50 size is an antique diameter-by-section designation, while 550-19 is a numeric bias-ply size that fits a 19-inch rim. Current product coverage in this set is for 550-19, with 19-inch rim diameter and a recommended rim width range of 2.50 to 3.00 inches.

That means the first step is to identify which wheel setup is actually on the car. A Durant 75 Series owner should check the existing rim diameter and compare the markings on the old tire, wheel, or period reference material before choosing between the antique-format 29X5.50 and the 19-inch 550-19 option.

On a Durant 75 Series, 29X5.50 is an antique diameter-by-section size. The 29 refers to the tire's overall outside diameter in inches, and 5.50 refers to the nominal section width. Unlike a modern size, that first number is not the wheel diameter, so the rim size cannot be read directly from the code.

That difference is where many fitment mistakes happen on late-1920s cars. If your Durant 75 Series carries a tire marked 29X5.50, inspect the wheel itself and compare it with original references before replacing anything, because the visible size code alone does not tell you which rim diameter the car is using.

A 1928 Durant 75 Series can show two listed sizes because the same model year appears with both 29X5.50 and 550-19. Those are not simply alternate spellings of the same modern size; they represent different sizing conventions, and 550-19 clearly identifies a 19-inch rim while 29X5.50 does not name the wheel diameter in the code.

For an owner, that means the year is only the starting point. You need to identify the actual wheel and existing tire format on your Durant 75 Series before selecting a replacement, especially if the car has been restored, repaired, or changed over the years.

The Durant 75 Series uses a confirmed 19-inch rim with the 550-19 size. The 29X5.50 size does not reveal rim diameter in the code, because its leading number is the tire's overall outside diameter rather than the wheel size. For the supported 550-19 products, the rim width range is 2.50 to 3.00 inches.

If your Durant 75 Series is wearing 550-19 tires, rim confirmation is straightforward because the 19-inch wheel size is built into the code. If the car is marked 29X5.50, measure the wheel or verify it through period references before making a selection, since the sidewall marking alone can be misleading to a modern buyer.

The correct way to confirm tire size for a 1928 Durant 75 Series is to use the year together with the wheel and the size format already on the car. Two sizes are associated with that year, 29X5.50 and 550-19, and only one of them directly identifies a 19-inch rim. Existing tire markings, wheel measurements, and original vehicle paperwork are the best cross-checks.

Start with the simplest physical check: verify the rim diameter on the car. If the wheel is 19 inches, the supported current option here is 550-19; if the tire carries the antique 29X5.50 format, inspect further before proceeding so the replacement matches both the wheel and the car's period-correct setup.

Durant 75 Series products in 550-19 are available in both blackwall and wide whitewall form. The blackwall version is a BFGoodrich 550-19, and the whitewall version is a BFGoodrich 3.25 Inch Whitewall in the same 550-19 size. Both are bias-ply tires in the same Silvertown Classic Bias Ply series.

That gives a restorer a choice between a more understated blackwall look and a more decorative whitewall presentation while staying within the same basic size and construction. The right visual choice depends on how your Durant 75 Series is being finished, whether for touring, period presentation, or a judged restoration style.

The currently listed Durant 75 Series products in this set come from one brand: BFGoodrich. Both available 550-19 tires are BFGoodrich products, offered in blackwall and wide whitewall versions, and both use bias-ply construction in the Silvertown Classic Bias Ply line.

Because the available brand coverage here is concentrated in one maker, the real selection point is less about brand comparison and more about confirming size, rim diameter, and sidewall appearance. A Durant 75 Series owner should make those fitment and presentation decisions first, then choose the version that matches the car's wheel setup and restoration goals.

The listed Durant 75 Series products here are all in one series: BFGoodrich Silvertown Classic Bias Ply. That means there is no split here between different construction families such as radial versus bias-ply or between multiple named period-style series. The available differences are sidewall treatment and weight, not a separate tire technology category.

For a buyer, that simplifies the decision. Once the Durant 75 Series is confirmed to need 550-19 on a 19-inch rim, the remaining choice is mostly visual and restoration-oriented, with blackwall or wide whitewall appearance determining which version best suits the car.

A Durant 75 Series should be stored in a cool, dry, dark space away from direct sunlight, electric motors, ozone sources, and petroleum contamination. Keep the tires clean, maintain proper inflation, and avoid letting the car sit for long periods on a damp floor. Because late-1920s bias-ply tires and tube-type assemblies can develop flat spotting, storage conditions matter more than many owners expect.

If the Durant 75 Series will be parked for an extended season, move it occasionally or support it in a way that reduces long-term stress on one contact patch. Good storage habits preserve both the tire casing and the overall ride quality when the car returns to touring or show use.

Tires on a Durant 75 Series should be inspected before every drive and more thoroughly at regular intervals during the season. Look for cracking, cuts, tread separation, irregular wear, valve stem deterioration, and any signs that the tube-type assembly has shifted or lost air. On an older collector car, long periods of inactivity can be as hard on tires as road mileage.

A practical routine is to make inspection part of every outing, even if the drive is short. Durant 75 Series owners should also have wheels, tubes, and mounting condition reviewed by a shop familiar with vintage bias-ply tires, since problems often begin in the complete assembly rather than in the tread alone.

A Durant 75 Series tire should be replaced when age, cracking, hardening, sidewall damage, impact damage, or structural changes appear, even if the tread still looks usable. Collector cars often accumulate very little mileage, so tread depth alone is not a reliable measure of tire health. Tube-type bias-ply tires can age internally as well as externally.

That means an old-looking tire is not the only warning sign; a Durant 75 Series tire that appears presentable but feels brittle or shows weather checking also deserves attention. If there is any doubt about age or condition, especially on a car that has sat for years, replacement is usually the wiser path than relying on tread remaining.

Durant 75 Series is associated here with two period-style sizes for 1928: 29X5.50 and 550-19. The currently listed replacement products are 550-19 bias-ply tires in the BFGoodrich Silvertown Classic Bias Ply series, with blackwall and wide whitewall versions available. That gives a strong period-style replacement path, but the exact factory delivery setup can vary by the individual car's original equipment and wheel arrangement.

For a restoration, the safest approach is to treat the known sizes as the starting point and then verify the car against original paperwork, survivor examples, or marque-club references. On Durant 75 Series, that extra step matters because two distinct size formats appear in the same model year.

Correct tire fitment can affect both the presentation and the perceived authenticity of a Durant 75 Series. Judges and experienced collectors often notice whether the tire size, sidewall treatment, and overall profile suit the period and the specific wheel setup. A car wearing the wrong rim-related fitment can look noticeably off even before anyone checks finer details.

That makes tire choice part of the restoration strategy rather than an afterthought. If a Durant 75 Series is being prepared for formal judging or a high-level historical restoration, compare the selected size and sidewall style with marque references and period photographs so the finished stance and appearance stay consistent with the era.

Durant 75 Series tires in the listed 550-19 offerings are available as blackwall and wide whitewall. Both are period-flavored choices for a late-1920s car, but they create very different visual impressions. Blackwall usually presents a more restrained, utilitarian look, while a wide whitewall gives the car a more formal and dressy appearance.

The right choice depends on how your Durant 75 Series is being restored and what visual standard you are following. If authenticity is the priority, compare the intended sidewall style with period images, surviving cars, and club guidance so the tire complements the body finish, wheel treatment, and overall character of the restoration.

A properly fitted, properly mounted tire can make a Durant 75 Series suitable for careful collector-car road use, but it should still be treated as a late-1920s automobile with prewar braking, steering, and chassis limitations. The listed 550-19 products are bias-ply tires intended for period-style fitment, not modern high-speed driving expectations.

That means safety depends on the entire car, not just the tires. Before taking a Durant 75 Series onto public roads, make sure the wheel size is correct, the tube-type assemblies are sound, and the mechanical condition of the car supports steady low-speed operation in today's traffic environment.

Before driving a Durant 75 Series, check tire inflation, visible sidewall condition, tread condition, valve stems, wheel attachment, and any signs of tube or bead-related air loss. Also inspect the car's brakes, steering response, and wheel bearings, since a vintage car's road behavior depends on the whole running gear. On a collector car that has been sitting, age-related deterioration can appear without warning.

A useful habit is to walk around the Durant 75 Series before every outing and then recheck the tires once the car has rolled a short distance. Catching a soft tire, a cracked sidewall, or a loose wheel early is far easier than dealing with a roadside failure on a nearly century-old automobile.

A Durant 75 Series should be driven at moderate, conservative speeds that respect the limits of a 1928 chassis and period-style bias-ply tires. Even with fresh tires, the experience is not comparable to a modern car, and stability, braking distance, and steering correction all require more room and more patience.

The practical rule is to drive a Durant 75 Series at the pace its mechanical condition and road environment comfortably allow, rather than trying to keep up with fast modern traffic. Smooth inputs, extra following distance, and avoiding sustained high-speed running will do more for safety and tire life than any cosmetic restoration detail.