1930 Auburn 125WW Series Tires

The 1930 Auburn 125WW Series uses two primary tire sizes: 30X6.75 and 700-18. Both are bias-ply fitments, but they are built for different wheel diameters, so they represent two distinct setups rather than two ways of describing the same tire.

Choosing between them starts with the wheels on the car. A 30X6.75 tire corresponds to a 5-inch rim diameter, while a 700-18 uses an 18-inch rim, so the first step is measuring or confirming the wheel before comparing tire styles, sidewall treatments, or series options.

A 1930 Auburn 125WW Series can use two different rim diameters depending on its tire setup. The 30X6.75 fitment uses a 5-inch rim diameter, while the 700-18 fitment uses an 18-inch rim diameter.

That difference is too large to treat casually, so wheel confirmation needs to come before tire selection. Many collector cars have changed hands, been restored, or received replacement wheels over the decades, and that makes a quick visual assumption risky when two very different rim diameters are involved.

The 1930 Auburn 125WW Series has more than one tire size because the covered fitment includes two separate bias-ply tire and wheel combinations: 30X6.75 and 700-18. Those sizes follow different sizing conventions and correspond to different rim diameters.

For the owner, that means the correct choice is determined by the actual wheel setup on the car rather than by preference alone. Once the wheel diameter is confirmed, the decision becomes much more straightforward, and then attention can shift to sidewall style, tire series, and how the car is being restored or driven.

Start with the correct primary size and wheel diameter, because the 1930 Auburn 125WW Series uses both 30X6.75 and 700-18 bias-ply fitments. Once that is settled, compare the available tire series, sidewall presentation, and any rim-width guidance tied to the specific product you are considering.

Appearance and intended use usually drive the next decision. A restoration-oriented car may call for a traditional whitewall look, while a car intended for more regular driving might be chosen around series character, load specification, or wheel compatibility. Matching the tire to both the car’s setup and its role matters more than choosing by looks alone.

In 700-18, the 1930 Auburn 125WW Series has blackwall, double-whitewall, and wide whitewall choices. Those options give the car very different visual character even when the size remains the same, which is important on a pre-war automobile where the tire is a major part of the overall presentation.

The right sidewall style depends on how the car is being finished and shown. A whitewall or double-whitewall can emphasize classic luxury-era styling, while a blackwall creates a more understated look. Once the wheel diameter is confirmed, sidewall treatment becomes one of the most visible selection decisions on the car.

For 700-18 fitment on the 1930 Auburn 125WW Series, available brands include Firestone, Lester, Excelsior, and STA. Those choices span several vintage-style series, including Firestone Balloon, Firestone Classic Bias Ply, Lester Classic Bias Ply, Comp H, and Transport Highway.

Brand choice should be considered alongside the tire’s series, sidewall style, rim-width specification, and intended use. Some options lean toward a more traditional passenger-car presentation, while others have a more utilitarian appearance. Staying focused on the correct size and wheel setup keeps the comparison grounded and useful.

A period-style 1930 Auburn 125WW Series starts with using the correct primary size for the car’s actual wheel setup, either 30X6.75 or 700-18, and retaining the proper bias-ply construction. In 700-18, the available choices include several traditional series and sidewall treatments that suit a Classic Era automobile well.

Once fitment is confirmed, appearance becomes the key selection factor. Blackwall, wide whitewall, and double-whitewall options can each change the car’s visual tone, and exact originality should be checked against marque references or restoration records if authenticity is the goal rather than simply achieving a strong period-style presentation.

Correct tire fitment matters a great deal on a 1930 Auburn 125WW Series because tire diameter, section width, construction, and sidewall style all have a strong effect on the car’s stance and visual balance. With two distinct primary sizes in play, using the wrong wheel-and-tire combination can change the car’s appearance substantially.

That makes wheel verification an essential restoration step, not just a mechanical one. After the size is settled, details such as blackwall versus whitewall presentation and the character of the tire series help shape whether the finished car looks restrained, formal, or more dramatically styled in the way many Classic Era cars were.

Yes, modifications can affect tire fitment on a 1930 Auburn 125WW Series. Any change to wheels, suspension height, brake components, body clearance, or steering geometry can alter what tire size works properly, especially on an older car where the original wheel-and-tire relationship is a major part of the chassis layout.

That is especially important here because the Auburn can use either 30X6.75 or 700-18, which are tied to very different rim diameters. A car with replacement wheels or restoration-era changes should be checked carefully for wheel size, tire clearance, and turning room before a new set of tires is selected.

Before driving a 1930 Auburn 125WW Series on new tires, inspect the wheels for correct diameter and overall condition, then check mounting, valve stems, inflation, and visible clearance around fenders and steering components. It is also wise to look over suspension and steering parts on a collector car that may have spent long periods parked.

A short, careful road test should follow the installation. Watch for rubbing, uneven tracking, vibration, or any sign that the wheel-and-tire setup is not centered in the chassis the way it should be. Older cars often reveal fitment issues only after they begin moving and turning under load.

Tires on a collector 1930 Auburn 125WW Series should be inspected regularly for air loss, sidewall cracking, cuts, bulges, and tread wear, even if the car is driven only occasionally. Collector vehicles often age their tires through time and storage conditions as much as through mileage.

Proper storage helps preserve both appearance and service condition. Keeping the car away from prolonged sunlight, excessive heat, moisture, and ozone sources can reduce premature aging, and periodic pressure checks are important because an underinflated tire on a heavy pre-war car can create handling and wear issues that are easy to miss at first glance.