The 1957 Citroen DS arrived as one of the most technically ambitious cars of its era, pairing advanced engineering with a shape that still looks strikingly modern decades later. Early DS models are often appreciated as much for their road manners and design sophistication as for their place in postwar European motoring history. For this exact car, tire fitment centers on a single primary size: 165-400 radial. That keeps the main decision focused less on choosing between multiple fitments and more on preserving the proper millimetric sizing approach, wheel compatibility, and the overall appearance and behavior you want from a restoration-oriented or road-driven DS.
Which Tire Size Is Right for The 1957 Citroen DS
The 1957 Citroen DS uses one primary tire size: 165-400, and it is a radial fitment. Because the covered sub-model shares that same size, the real decision is not which primary size fits, but whether the car still has the correct millimetric wheel setup and whether the selected tire suits your restoration goals and intended road use.
The 165-400 size is a classic millimetric radial format in which 165 refers to the nominal section width in millimeters and 400 refers to the rim diameter in millimeters rather than inches. That makes it distinct from more familiar inch-based vintage American sizing and especially important to interpret correctly on a 1957 Citroen DS. Its radial construction matches the vehicle’s primary fitment approach and supports the car’s original-era European tire character. For selection, the key point is confirming that the car still uses the proper 400-millimeter wheel system before choosing a tire in this size.
Sub-model fitment is straightforward for the covered 1957 Citroen DS range. The listed DS 19 Sedan uses the same 165-400 radial size, so the main concern is confirming the correct wheel standard rather than sorting through multiple tire sizes.
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1957 Citroen DS 19 Sedan
The 1957 Citroen DS 19 Sedan uses the 165-400 radial tire size. That keeps tire selection focused on maintaining the proper millimetric fitment, preserving the car’s intended stance and presentation, and checking wheel compatibility carefully before any replacement is made.
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.
Frequently Asked Questions
Common questions for the 1957 Citroen DS usually center on the 165-400 size itself, the unusual millimetric rim fitment, restoration-minded tire selection, and the inspections worth making before putting an early DS back on the road.
Tire Size & Fitment
What tire size fits a 1957 Citroen DS?
The 1957 Citroen DS uses a 165-400 radial tire. For the covered fitment, that is the primary tire size associated with the car, including the DS 19 Sedan.
The important detail is that 400 is a millimetric rim diameter, not a 15-inch or 16-inch wheel. A buyer should confirm that the car still has the correct 400-millimeter wheels before choosing tires, especially if the vehicle has been restored, stored for many years, or altered from its original wheel setup at some point in its life.
What size rim does a 1957 Citroen DS use?
A 1957 Citroen DS using the 165-400 tire is built around a 400-millimeter rim diameter. This is part of the classic millimetric sizing system used on the car rather than the inch-based rim diameters many vintage American vehicles used.
That distinction matters because a millimetric wheel requires a tire made for that exact rim standard. Before replacing tires, inspect the wheels already on the car and verify that they match the intended 400-millimeter setup. That step becomes especially important if the DS has changed hands several times or has been modified with alternate wheels during an older restoration.
Does the 1957 Citroen DS 19 Sedan use the same tire size?
Yes. The 1957 Citroen DS 19 Sedan uses the same 165-400 radial tire size. For this covered sub-model, tire fitment remains consistent rather than splitting into multiple primary size choices.
That consistency simplifies the search, but it does not remove the need to check the actual wheels on the car. Early European collector cars are sometimes found with replacement wheels or mixed components, so the safest next step is confirming the wheel standard and overall condition before mounting new tires or returning a long-stored DS to regular road use.
Choosing the Right Tire
What should I consider when choosing a 165-400 tire for a 1957 Citroen DS?
Start with the correct size and construction: the 1957 Citroen DS uses a 165-400 radial. Because this is a millimetric fitment, choosing the right tire begins with matching the proper rim standard rather than substituting a similar-looking inch-based size.
Beyond size, think about how the car will be used and what matters most to the project. A restoration-oriented DS may call for a traditional visual presentation, while a driver-focused car may place more emphasis on dependable road manners and careful wheel compatibility. Tire age, wheel condition, and the car’s current setup should all be checked before settling on a replacement.
How do I choose between the available 165-400 tires for a 1957 Citroen DS?
The first filter is always exact fitment. On a 1957 Citroen DS, that means staying with the 165-400 radial size and making sure the tire is meant for the correct millimetric wheel diameter.
After that, compare each option through the lens of your car’s purpose. A DS restored for period style may call for a different visual emphasis than one driven more frequently on public roads. It also helps to inspect the wheels, look for signs of previous modifications, and make sure the overall setup supports the tire choice instead of assuming every older replacement decision was correct.
What rim-fitment details matter when choosing tires for a 1957 Citroen DS?
The most important rim-fitment detail is diameter standard. A 1957 Citroen DS with 165-400 tires uses a 400-millimeter wheel, and that is not interchangeable with common inch-based vintage rim diameters just because the numbers appear close.
A careful buyer should inspect the wheel markings, verify that all four wheels match, and look for signs of prior wheel swaps. It is also worth checking for clearance issues caused by non-original suspension changes or body repairs. Getting the wheel standard right first prevents the entire tire search from heading in the wrong direction.
Restoration & Appearance
Which tire should I choose for a period-style 1957 Citroen DS?
A period-style 1957 Citroen DS restoration starts with the correct primary fitment format, which is the 165-400 radial size. That millimetric radial sizing is part of what gives the car its proper visual and mechanical character.
Appearance should be considered alongside compatibility, not separately from it. A tire that preserves the intended look of the car still needs to match the proper wheel system and support safe road use. When exact historical presentation matters, it is smart to compare the tire choice against marque-specific references and the car’s existing wheels before finalizing the restoration.
Does correct tire fitment matter for a 1957 Citroen DS restoration?
Yes, correct tire fitment matters greatly on a 1957 Citroen DS because the car uses a distinctive 165-400 millimetric radial size. Tire fitment affects not only road use, but also the stance, proportions, and authentic character that make an early DS look right.
Restoration decisions on unusual European fitments should begin with the wheels already on the vehicle. A DS that has received later replacement parts or non-original wheels can easily drift away from its intended setup. Verifying the wheel standard first helps protect both the visual result and the practical side of mounting and driving the car once the restoration is complete.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1957 Citroen DS?
Yes. Modifications can affect tire fitment on a 1957 Citroen DS, especially if the car has been converted to different wheels, altered in ride height, or repaired with non-original suspension or body components over the years.
Even though the primary size is 165-400 radial, the actual vehicle should still be checked before installing tires. Look at wheel diameter standard, wheel condition, clearance around the fenders, and any signs of prior changes that could alter how the tire sits or moves. On a collector car with a long history, those details matter as much as the nominal size itself.
What should I inspect before driving a 1957 Citroen DS on new tires?
Before driving a 1957 Citroen DS on new tires, inspect the wheels for damage, corrosion, and correct millimetric sizing, then confirm that all tires are mounted properly and inflated appropriately for their application. A visual check for rubbing points is also worthwhile.
The rest of the car deserves attention too, especially on a vehicle that may have seen limited recent use. Check for suspension wear, steering play, fluid leaks that could reach the tires, and any signs that the car has sat long enough for age-related problems to develop. A short, cautious test drive is a sensible final step before regular road use.
How should 165-400 tires on a collector 1957 Citroen DS be maintained?
Collector-car tires in 165-400 size should be maintained through regular pressure checks, visual inspections, and periodic examination for cracking, bulges, cuts, or uneven wear. Low-mileage use does not stop tires from aging, so condition matters as much as tread depth on a 1957 Citroen DS.
Storage habits also influence tire life. Keeping the DS away from prolonged sunlight, moisture, and ozone sources helps preserve both appearance and serviceability. It is also wise to inspect the wheels at the same time, since an early car with a specialized millimetric fitment depends on both tire condition and proper wheel integrity before it is driven with confidence.
