The 1973 Citroen SW comes from an era when Citroen wagons were known for blending distinctive engineering with practical long-roof utility, making them especially appealing to owners who value both European character and real road use. Tire choice matters on a car like this because its ride, stance, and overall presentation are closely tied to the correct tall-profile radial fitment. For this model, the primary sizes are 180R15 and 185R15, both built around a 15-inch rim. Available choices include blackwall, narrow whitewall, and redline treatments across Michelin, Avon, Coker Classic, and Universal Vintage Tire offerings. The real task is matching the right size and tire style to the wagon's exact setup and intended use.
Which Tire Size Is Right for The 1973 Citroen SW
The 1973 Citroen SW uses two primary tire sizes, 180R15 and 185R15, and both are radial tires built for a 15-inch rim. Since both the 19 Wagon and 21 Wagon can use either size, the decision is less about sub-model separation and more about confirming the wheel setup already on the car, then choosing the tire style, series, and fitment range that best suits restoration goals and road use.
180R15 is a Euro-metric radial size in which 180 refers to nominal section width in millimeters, R identifies radial construction, and 15 is the rim diameter in inches. On the 1973 Citroen SW, this size preserves the tall-profile European tire format that suits the car's original-era character. Michelin XAS options are available in both blackwall and narrow whitewall form, giving this size a distinctly restoration-oriented feel. It is a useful choice for owners who want a traditional European presentation and who have confirmed their wagon's wheel width matches the tire's intended range.
185R15 is also a Euro-metric radial, with a nominal 185-millimeter section width, radial construction, and a 15-inch rim diameter. For the 1973 Citroen SW, it opens up a broader mix of choices while staying within the same classic radial sizing family. Available offerings include blackwall, narrow whitewall, and redline styles from Michelin, Avon, Coker Classic, and Universal Vintage Tire across several tire series. This size is worth evaluating when appearance preferences, brand selection, or wheel-width compatibility matter as much as simply matching the original-style format.
Tire fitment is straightforward across the covered 1973 Citroen SW sub-models because both wagons use the same two radial tire sizes. Checking the exact sub-model still helps confirm the car's configuration, but wheel setup and tire-style preference are usually the bigger decisions here.
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1973 Citroen SW 19 Wagon
The 1973 Citroen SW 19 Wagon uses the same 180R15 and 185R15 radial tire fitment pattern seen across this model range. That gives owners room to choose between a more traditional European blackwall look, narrow whitewall presentation, or selected redline options after confirming the wheels on the car.
The 1973 Citroen SW 21 Wagon also uses 180R15 and 185R15 radial tires on 15-inch wheels. Tire selection comes down to the wagon's current wheel dimensions and the look you want, whether that means a classic Michelin-style appearance or another period-style radial presentation.
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 1973 Citroen SW Tires for Sale
Available 1973 Citroen SW tires center on 180R15 and 185R15 radials, with choices from Michelin, Avon, Coker Classic, and Universal Vintage Tire. The main differences in the product grid are tire series, sidewall treatment, and rim-width compatibility, with blackwall, narrow whitewall, and redline styles represented.
These FAQs focus on 1973 Citroen SW tire sizes, 15-inch rim fitment, radial tire selection, sidewall styling, restoration-minded choices, and the checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 1973 Citroen SW?
The 1973 Citroen SW uses two primary tire sizes: 180R15 and 185R15. Both are radial tires designed for 15-inch rims, and both the 19 Wagon and 21 Wagon can use these sizes. That makes this a classic Euro-metric radial fitment rather than a modern low-profile application.
The key step is confirming which size is already on the car and whether the wheel width matches the tire being considered. Since both sizes are valid within this model range, the final choice often comes down to wheel setup, sidewall appearance, and how closely the owner wants to stay with a traditional European radial presentation.
What size rim does a 1973 Citroen SW use?
The 1973 Citroen SW uses a 15-inch rim with both of its primary tire sizes, 180R15 and 185R15. That common rim diameter keeps the main fitment question centered on tire width and product choice rather than switching to a different wheel diameter.
Rim diameter is only part of the picture, so it still helps to verify actual wheel width before selecting a tire. Some available products are intended for narrower wheel ranges than others, and that can influence whether a blackwall, narrow whitewall, or redline option makes the most sense for the wagon's current setup.
Do all 1973 Citroen SW sub-models use the same tire size?
Yes. The 1973 Citroen SW 19 Wagon and 1973 Citroen SW 21 Wagon share the same two primary tire sizes, 180R15 and 185R15. Both sub-models use radial construction on 15-inch rims, so there is no separate tire-size split between the wagons covered here.
That shared fitment simplifies the search, but it does not make every tire choice identical. Owners should still confirm the wheels actually installed on the car, especially if the wagon has been restored or modified over time, then choose among the available tire series and sidewall styles based on appearance goals and road-use plans.
Choosing the Right Tire
What should I consider when choosing a 180R15 or 185R15 tire for a 1973 Citroen SW?
Start with the correct primary size for the wheels currently on the car, then compare construction, rim-width compatibility, sidewall style, and tire series. The 1973 Citroen SW stays within classic radial fitment, so the choice is usually between 180R15 and 185R15 rather than between bias-ply and radial construction.
From there, think about how the wagon will be used and how you want it to look. A Michelin blackwall or narrow whitewall creates a different visual result than a redline option, and product specifications such as rim-width range or load figures can matter when trying to match the tire closely to the wheel and vehicle setup.
What sidewall styles are available for 1973 Citroen SW tires?
Available sidewall styles for the 1973 Citroen SW include blackwall, narrow whitewall, and redline, depending on tire size and product line. Blackwall choices appear in both 180R15 and 185R15, narrow whitewall is offered in Michelin fitments, and redline appears in selected 185R15 applications.
That variety gives the wagon owner some real control over appearance without leaving the correct size family. A blackwall tends to preserve a restrained European look, while narrow whitewall or redline treatments create a more distinctive presentation. The best choice depends on the style of restoration, the era impression you want, and the exact size being used.
What brands offer tires for the 1973 Citroen SW?
Tires for the 1973 Citroen SW are available from Michelin, Avon, Coker Classic, and Universal Vintage Tire. Michelin appears in both 180R15 and 185R15 offerings, while Avon, Coker Classic, and Universal Vintage Tire expand the choices in 185R15 with different sidewall treatments and series.
Brand alone should not be the only deciding factor. It helps to compare the available tire series, the sidewall style you want, and any rim-width or load details tied to a specific product. Since this Citroen can use two primary sizes, choosing the right brand is really part of a broader size-and-fitment decision.
Restoration & Appearance
Which tire should I choose for a period-style 1973 Citroen SW?
A period-style 1973 Citroen SW usually starts with the correct tall-profile radial format, which means staying with 180R15 or 185R15 on a 15-inch rim. Michelin XAS and Michelin XVS options align especially well with the car's European character, while other 185R15 choices broaden the appearance range without departing from classic radial sizing.
The best selection depends on whether the goal is a restrained roadgoing look or a more stylized presentation. Blackwall generally keeps the appearance closest to a traditional European touring aesthetic, while narrow whitewall or redline options change the visual tone. When exact originality matters, marque-specific historical references are worth consulting before settling on a sidewall treatment.
How does tire construction affect the appearance of a restored 1973 Citroen SW?
On a restored 1973 Citroen SW, construction affects appearance mainly through the tire's profile and presentation rather than a bias-ply-versus-radial decision, since the primary fitments here are radial. The tall Euro-metric radial shape is part of what gives the wagon its proper visual balance on 15-inch wheels.
Appearance then shifts more through brand, series, and sidewall treatment than through construction type alone. A blackwall keeps the look understated, while a narrow whitewall or redline makes the tire more visually prominent. Preserving the right overall style usually means choosing within the correct radial size family first, then refining the look through sidewall details.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1973 Citroen SW?
Yes. A 1973 Citroen SW may share the same primary tire sizes across its wagon sub-models, but modifications can still change what works safely and cleanly on the car. Aftermarket wheels, changes in wheel width, suspension alterations, or body work can all influence how a 180R15 or 185R15 tire sits and clears.
That matters most when a car has been restored over many years and no longer matches its earlier wheel setup. Before selecting a tire, check the actual wheel diameter and width now on the vehicle, then verify steering clearance and fender space so the chosen size and tire series suit the car as it currently stands.
What should I inspect before driving a 1973 Citroen SW on new tires?
Before putting a 1973 Citroen SW into regular road use on new tires, inspect the wheels for correct diameter and condition, confirm the tires are seated properly, and check for any signs of rubbing at full steering angle. It also helps to make sure valve stems, balance, and inflation are all in order.
A classic wagon can feel very different once fresh radials are installed, so a careful short drive is worthwhile before any longer trip. Watch for vibration, pulling, or contact with suspension or bodywork, and recheck air pressure after the first outings. That simple routine helps catch wheel or clearance issues early.
How should 180R15 and 185R15 tires on a collector 1973 Citroen SW be maintained?
Collector-car tires on a 1973 Citroen SW should be inspected regularly for air loss, tread wear, sidewall cracking, bulges, and cuts, even if the wagon is driven only occasionally. Proper inflation matters just as much on a low-mileage classic as it does on a car used every week.
Storage conditions also affect long-term tire health, especially on vehicles that spend extended time parked. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve the rubber, and periodic movement prevents long stationary periods from becoming part of the tire's aging pattern.
