The 1928 Studebaker Dictator comes from an era when American cars were rapidly becoming more refined, yet still depended on tall, narrow tires that strongly shaped both appearance and road feel. For owners of this late-1920s Studebaker, tire selection is as much about preserving the car’s stance and character as it is about basic fitment. This model uses bias-ply sizing in 29X5.50 and 550-20 on a 20-inch rim. Available choices stay true to that period look with BFGoodrich Silvertown Classic Bias Ply options in blackwall and wide whitewall form. The key is confirming which sizing convention matches the wheels and presentation you want before putting the car back on the road.
Which Tire Size Is Right for The 1928 Studebaker Dictator
The 1928 Studebaker Dictator uses two primary tire sizes, and both are bias-ply fitments tied to a 20-inch wheel setup. Because the 6 Cyl. sub-model is associated with both sizes, the first step is confirming which sizing convention matches the wheels already on the car, then choosing the sidewall style and period presentation that best suits your restoration or driving plans.
The 29X5.50 size uses an older diameter-by-section format, where 29 refers to approximate overall tire diameter and 5.50 refers to nominal section width in inches. It is a bias-ply fitment that suits the upright proportions and traditional wheel-and-tire look expected on a late-1920s automobile. This size speaks more to period sizing convention than to modern replacement logic, so it is most useful for owners trying to match an early presentation. Before choosing it, verify the actual wheel dimensions and the way the current tire setup is marked on the car.
The 550-20 size is a numeric bias-ply designation, with 5.50 representing nominal section width and 20 identifying the rim diameter in inches. On a 1928 Studebaker Dictator, it gives a more familiar vintage replacement reference for a 20-inch wheel while retaining the construction style appropriate to the period. Available BFGoodrich Silvertown Classic Bias Ply choices include both blackwall and 3.25-inch wide whitewall versions, which changes the car’s visual character without changing the basic fitment. This is the size to evaluate closely if you want a traditional replacement supported by clear product options.
Fitment is straightforward here because the covered 6 Cyl. sub-model is associated with the same two bias-ply size conventions. Checking the exact sub-model still matters so the tire choice stays aligned with the wheel setup and the restoration direction of the car.
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1928 Studebaker Dictator 6 Cyl.
The 1928 Studebaker Dictator 6 Cyl. is associated with both 29X5.50 and 550-20 bias-ply sizing. That means the real decision is less about model variation and more about confirming the wheels on the car, then choosing the size format and sidewall presentation that best match its intended appearance and use.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1928 Studebaker Dictator Tires for Sale
Available 550-20 choices center on BFGoodrich Silvertown Classic Bias Ply tires, with the main visual difference being blackwall versus 3.25-inch wide whitewall styling. The product grid is most useful for comparing that appearance change alongside matching 20-inch rim fitment and other vintage-spec details.
These FAQs focus on 1928 Studebaker Dictator tire size meaning, 20-inch rim fitment, bias-ply construction, period-style sidewall choices, and the practical checks worth making before driving a collector car that may have seen limited road use.
Tire Size & Fitment
What tire size fits a 1928 Studebaker Dictator?
The 1928 Studebaker Dictator uses two primary bias-ply tire sizes: 29X5.50 and 550-20. The covered 6 Cyl. sub-model is associated with both of those size designations, which means either marking may be relevant depending on the wheels and the way the car has been set up.
That makes wheel confirmation more important than simply ordering by vehicle name alone. Check the size marked on the current tires, confirm that the car is using 20-inch rims, and compare the tire’s sizing convention before selecting a replacement so the new tires match the existing wheel setup and the appearance you want.
What size rim does a 1928 Studebaker Dictator use?
The 1928 Studebaker Dictator uses a 20-inch rim with its 550-20 bias-ply fitment. Product options in that size are built around that 20-inch rim diameter, which is the key wheel measurement that must match before any vintage tire can be installed safely.
On an older car, rim diameter alone is not the whole story. It is also worth checking the wheel’s width, the condition of the rim, and whether the car still has its original-style wheels or has been altered over the years, since collector vehicles sometimes carry replacements that change what tire size should be considered.
What does 550-20 mean on a 1928 Studebaker Dictator?
On a 1928 Studebaker Dictator, 550-20 is a numeric bias-ply tire size. The 5.50 refers to the tire’s nominal section width in inches, and the 20 refers to the rim diameter in inches, making it a traditional vintage sizing format rather than a modern metric one.
Understanding that format helps prevent ordering the right-looking tire in the wrong size family. A 550-20 should be matched to a 20-inch wheel, and it should also be evaluated in the context of the car’s existing wheel setup, sidewall preference, and overall restoration direction before replacing a worn or aged tire.
Choosing the Right Tire
What should I consider when choosing a 550-20 tire for a 1928 Studebaker Dictator?
Start with the basics: the tire must be the correct 550-20 size, it must suit a 20-inch rim, and it should retain the bias-ply construction associated with this Studebaker fitment. From there, the choice becomes more about the car’s intended presentation and how closely the replacement should reflect a traditional late-1920s look.
Available 550-20 options include blackwall and wide whitewall versions in the BFGoodrich Silvertown Classic Bias Ply series. That means the most useful comparisons are sidewall appearance, wheel compatibility, and vintage-spec details such as load and rim-width requirements, rather than treating every tire in the size as visually or practically identical.
What sidewall styles are available for 1928 Studebaker Dictator tires?
For the 1928 Studebaker Dictator in 550-20, the available sidewall styles include blackwall and wide whitewall. Both are bias-ply options, so the main difference is the visual character they give the car rather than a change in basic construction type or wheel diameter.
That styling choice matters a great deal on a prewar-era vehicle because the sidewall has a strong effect on overall presentation. A blackwall keeps the look more restrained, while a 3.25-inch wide whitewall adds a more formal, dress-car appearance, so the best choice depends on how the car is restored and displayed.
What brands offer tires for the 1928 Studebaker Dictator?
The available 550-20 tire options for the 1928 Studebaker Dictator are from BFGoodrich. Those products are part of the Silvertown Classic Bias Ply line, which keeps the selection focused on traditional bias-ply construction and vintage styling rather than spreading across multiple modern tire categories.
With a single brand in the mix, the comparison becomes less about brand shopping and more about product details within the size. Sidewall treatment, tire weight, rim-width suitability, and the look you want on the finished car are more useful deciding factors than trying to compare one brand reputation against another.
Restoration & Appearance
Which tire should I choose for a period-style 1928 Studebaker Dictator?
A period-style 1928 Studebaker Dictator should stay with one of its primary bias-ply size conventions, either 29X5.50 or 550-20, depending on the wheel setup already on the car. Keeping the vintage size format and bias-ply construction preserves the tall, narrow profile that suits a late-1920s Studebaker.
For many owners, the next decision is appearance rather than fitment alone. A 550-20 BFGoodrich Silvertown Classic Bias Ply gives a traditional replacement path, and the choice between blackwall and wide whitewall lets the tire complement the car’s restoration style without assuming one specific sidewall treatment is correct for every example.
Does correct tire fitment matter for a 1928 Studebaker Dictator restoration?
Correct tire fitment matters a great deal on a 1928 Studebaker Dictator because tire height, width, and construction have a strong effect on the car’s stance and visual balance. Using one of the proper bias-ply size formats helps the vehicle retain the proportions expected of a car from this era.
Appearance is only part of the issue. Correct sizing also affects wheel compatibility and how naturally the tire fills the fender opening, so a restoration-minded owner should confirm the wheel setup first and then choose the sidewall style that fits the car’s intended presentation and historical character.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1928 Studebaker Dictator?
Yes, modifications can affect tire fitment on a 1928 Studebaker Dictator even when the vehicle is associated with traditional sizes such as 29X5.50 and 550-20. Changes to wheels, suspension height, brake components, or body clearances can alter what fits correctly, especially on a collector car that may have been updated over time.
That is why the actual car should be checked before replacement tires are chosen. A different rim width, a substituted wheel, or fender and steering-clearance changes can all influence the decision, so the safest approach is to inspect the current setup carefully instead of assuming every surviving Dictator is configured the same way.
What should I inspect before driving a 1928 Studebaker Dictator on new tires?
Before driving a 1928 Studebaker Dictator on new tires, inspect the wheels, valve hardware, and the general condition of the mounting surfaces, then confirm the tires are properly inflated and seated. On the car itself, look over steering and suspension components so the new bias-ply tires are not being asked to mask worn mechanical parts.
It also helps to check for rubbing at full steering lock and to make sure the car tracks evenly once it is back on the road. A short, careful shakedown drive can reveal air loss, vibration, or clearance issues early, which is especially important on an older vehicle that may not be driven frequently.
How should 550-20 tires on a collector 1928 Studebaker Dictator be maintained?
550-20 tires on a collector 1928 Studebaker Dictator should be kept properly inflated, inspected regularly for cracking, cuts, bulges, and uneven wear, and protected from long exposure to heat, sunlight, and ozone. Even when tread looks acceptable, an older collector-car tire can still deserve closer attention because age and storage conditions matter.
Routine inspection is especially important if the car spends long periods parked between drives. Rolling the vehicle periodically, keeping the tires clean, and watching for slow air loss can help preserve both appearance and service condition, while any sign of deterioration should be addressed before the car is taken out for regular road use.
