1970 Citroen Tire Fitment Guide

1970 Citroen vehicles use three tire sizes across four model lines. The 2 CV uses 135R15, while the DS, ID, and SW use either 180R15 or 185R15. All three sizes mount on 15-inch rims, but they are not interchangeable across the full model range simply because the wheel diameter matches. Rim width coverage also differs by size, with 135R15 appearing on 3.50 to 4.50-inch rims, 180R15 on 4.5 to 6.5-inch rims depending on the product, and 185R15 on roughly 4.5 to 6.5-inch rims depending on the product.

That means year and make alone are not enough for a confident tire choice on 1970 Citroen vehicles. A 2 CV owner should stay focused on the narrow 135R15 fitment, while DS-family owners need to confirm whether their car is using 180R15 or 185R15 before comparing sidewall style, tube status, or speed rating. Matching the correct size to the correct model is the first step, and matching the product to the actual wheel width is the second.

On a 1970 Citroen, 135R15 is an early metric radial size. The 135 refers to a nominal section width of 135 millimeters, the R identifies radial construction, and the 15 is the rim diameter in inches. When no aspect ratio is printed in this older Euro-metric style, it is conventionally treated as an 80-series radial profile. In the 1970 Citroen range, this size belongs to the 2 CV rather than the larger DS-family cars.

That decoding matters because 135R15 is both narrow and model-specific. It supports the light, economy-car character of the 2 CV and appears with blackwall sidewalls and radial construction rather than with a broad mix of appearance treatments. If your car is a DS, ID, or SW, 135R15 is the wrong starting point even though it shares the same 15-inch wheel diameter as the larger Citroen models.

No. 1970 Citroen models split into two clear groups: the 2 CV uses 135R15, while the DS, ID, and SW use 180R15 or 185R15. All are radial 15-inch sizes, but the section width, wheel-width compatibility, available sidewall styles, and in some cases tube status differ meaningfully between them.

For a buyer, that means identifying the model is more important than starting with appearance alone. A narrow 2 CV tire and a larger DS-family tire may both be 15-inch radials, but they serve different vehicles with different wheel-width requirements and different presentation choices. If you are working from an inherited car, a restoration project, or mixed spare parts, verify the exact model and compare the tire already on the car before choosing a replacement.

1970 Citroen tire choices include more than one sidewall look, but the range depends on size. The 135R15 used on the 2 CV is available in blackwall only. The 180R15 used on DS-family cars comes in blackwall and narrow whitewall, while 185R15 expands the appearance options further with blackwall, narrow whitewall, and redline versions.

For most European-market Citroens of this era, blackwall is the most restrained and broadly period-appropriate look, while narrow whitewall can suit a more formal DS presentation. Redline is available in 185R15, but it carries a more stylized appearance that many owners would treat as a personalized look rather than the default choice for authenticity. Sidewall style should be chosen after the model and size are confirmed, not before.

Three brands cover 1970 Citroen fitments here. Michelin and Firestone both appear in 135R15 for the 2 CV, Michelin covers 180R15 for the DS, ID, and SW, and 185R15 is available from Michelin and Coker Classic. That gives DS-family owners the broadest spread of appearance choices, while 2 CV owners have a narrower but still meaningful brand selection.

Brand choice on a 1970 Citroen often comes down to the balance between period-European character and the exact visual style you want on the car. Michelin has especially strong historical relevance for French applications of this era, while the broader catalog around 185R15 opens the door to sidewall treatments that may suit a custom presentation. Once you know your size, compare the brand, sidewall, and speed-rating details together rather than treating the brand name alone as the deciding factor.

Within 185R15 for 1970 Citroen DS-family cars, Michelin XVS and Coker Classic Radial differ in sidewall styling, speed-rating options, and some wheel-fit details. Michelin XVS appears in blackwall and narrow whitewall forms, with H and V speed ratings, and fits rims ranging from 4.5 to 6.5 inches depending on the version. Coker Classic Radial appears here as a redline 185R15 with a maximum load figure of 1355 pounds at 35 psi and a 5.00 to 6.50-inch rim-width range.

That means the choice is not just about brand preference. Michelin XVS is the route if you want a more traditionally European appearance with either blackwall or narrow whitewall and if speed-rating selection matters to your intended use. The Coker Classic redline speaks more to visual personalization on a DS, ID, or SW. Compare the wheel width on your car, the sidewall look you want, and the speed category before narrowing it further.

Rim width varies by size on 1970 Citroen vehicles. The 135R15 used on the 2 CV fits 3.50 to 4.50-inch rims where width guidance is specified. The 180R15 used on the DS, ID, and SW spans from 4.5 to 6.5 inches depending on the product, and 185R15 covers roughly 4.5 to 6.5 inches depending on the exact tire, with some versions beginning at 5.00 inches.

Those ranges are wide enough that wheel diameter alone is not a complete fitment check. Before choosing a tire, measure the actual wheel width on the car or confirm it through a trusted workshop manual or marque specialist. That is especially important on restored Citroens, where replacement wheels, aftermarket wheels, or swapped assemblies may change what tire size fits correctly even when the rim diameter remains 15 inches.

Inner-tube status depends on the size and product. The 180R15 Michelin XAS versions for 1970 Citroen DS-family cars are tube-type, while several 135R15 and 185R15 options are tubeless. Some products within a size can differ in how the size marking is presented, so tube requirements should be confirmed on the specific tire you choose rather than assumed from the size alone.

That distinction matters during both installation and long-term maintenance. If your 1970 Citroen is using a tube-type tire, tube condition and valve-stem condition become part of routine inspection, especially before touring or after long storage. Even with a tubeless tire, the wheel itself still has to be suitable for tubeless service. Matching the tire’s construction and service type to the wheel is just as important as matching the tire size.

Original 1970 Citroen wheels can share the same 15-inch diameter across the range, but that does not mean every 15-inch tire size belongs on every wheel. The 2 CV’s 135R15 works on a much narrower rim-width range than the 180R15 and 185R15 sizes used by DS, ID, and SW models. Within the larger DS-family sizes, wheel-width compatibility can still vary slightly by product.

In practical terms, original wheels are only a good match when the wheel width suits the specific tire. A 15-inch diameter match is necessary, but it is not sufficient by itself. If your car has been restored, modified, or pieced together from multiple donor vehicles, check the stamped wheel size or measure the rim before assuming a different 15-inch Citroen tire will fit correctly.

A stored 1970 Citroen should be kept out of direct sunlight and away from electric motors, battery chargers, furnaces, and other ozone-producing equipment that accelerates sidewall aging. Keep the car on a clean, dry surface, maintain normal inflation, and move it periodically so the tire does not rest in one spot for months at a time. Radial tires generally tolerate storage better than old-style bias-ply construction, but long static periods can still create temporary flat spotting and age-related cracking.

If the car will sit for an extended season, many owners either roll it occasionally or use stands to reduce sustained load on the tires and suspension. A breathable cover and a stable indoor climate help as much as tire pressure does. Collector cars such as a 1970 Citroen often age their tires by time and environment more than by mileage, so storage conditions have a direct effect on service life.

Tires on a 1970 Citroen are usually judged more by age than by tread wear. A sensible rule for a collector-driven car is to begin evaluating tires closely once they reach about five to seven years from their manufacturing date and to give serious replacement consideration by around ten years, even if the tread still looks healthy. The DOT date code on the tire sidewall is the starting point for that age check.

That approach matters because many vintage Citroens are driven lightly, stored for long periods, and may appear to have plenty of tread left. Rubber hardens, cracks, and loses resilience over time regardless of mileage. If a 1970 Citroen is used for touring, highway travel, or sustained warm-weather driving, age becomes an even more important factor than visual tread depth alone when deciding whether to keep or replace a tire.

Tires on a 1970 Citroen should be checked before every drive and given a more careful inspection before any longer outing. Look for sidewall cracking, bulges, puncture damage, unusual tread wear, and pressure loss. On tube-type applications such as 180R15 products, valve stems and any signs of slow leakage deserve extra attention because the tube and valve hardware are part of the service system.

Regular checks are especially important on cars that are not driven weekly. A Citroen that sits for a month can develop pressure loss or age-related cracking without obvious warning from behind the wheel. Build tire inspection into the same routine as checking fluid levels, lights, and brakes. On an older car, catching a small problem in the garage is far easier than dealing with it on the roadside.

The 1970 Citroen 2 CV belonged to an era when radial construction was already firmly associated with French passenger cars, and the 135R15 fitment aligns with that period character. In practical terms, a 2 CV owner looking for an authentic overall look should focus first on the correct narrow size, radial construction, and a simple blackwall presentation rather than chasing a decorative sidewall treatment.

Original-equipment details could still vary by market and local distribution practices, so concours-level research should go beyond the tire size alone. A marque club, factory literature, or a specialist familiar with export-market Citroens can help confirm whether a specific sidewall marking is appropriate for your car. For most restoration work, getting the size, stance, and construction style right will matter more than trying to infer an exact original brand without car-specific evidence.

Correct tire fitment absolutely matters when showing a 1970 Citroen, especially at marque-focused events. Judges and knowledgeable enthusiasts often notice whether the car is wearing the proper size for its model, whether the construction style suits the era, and whether the sidewall appearance matches the car’s intended presentation. A 2 CV on an oversized DS-family tire, or a formal DS on a visibly non-period sidewall treatment, can look immediately out of step.

For a show-oriented car, the most important choices are usually model-correct size first and sidewall style second. Blackwall tends to be the safest broadly authentic look for French cars of this period, while narrow whitewall can suit certain DS-family presentations. Event standards differ, so owners chasing top-level judging results should compare their planned tire choice with the expectations of the specific club or concours they intend to enter.

For 1970 Citroen DS, ID, and SW applications in 180R15, both Michelin XAS versions share radial construction, a tube-type service format, and an H speed rating with a 130 mph ceiling. The main differences are sidewall appearance and wheel-width range. One version is a blackwall fitting 5.00 to 6.50-inch rims, while the narrow whitewall version fits 4.5 to 5.5-inch rims and presents a more formal visual style.

That makes the decision part aesthetic and part fitment-related. If your wheel width falls toward the narrower end of the range and you want a more dress-oriented sidewall, the narrow whitewall version may suit the car well. If you want the plainer European look or need compatibility with a wider rim, the blackwall version is the more natural direction. On a judged restoration, sidewall appearance can influence the overall period impression as much as the brand itself.

1970 Citroen tires can be suitable for highway driving when they are in good condition, correctly inflated, and used within their service category. The speed ratings present here include Q, S, H, and V depending on size and product, corresponding to 99, 112, 130, and 149 mph ceilings. Those figures are well above ordinary highway speeds, especially for a 2 CV and for most real-world use of DS-family cars.

The larger safety question on a vintage Citroen is often the car itself rather than the tire alone. Brake condition, suspension health, steering feel, and overall mechanical readiness deserve as much attention as the sidewall marking. A fresh, properly matched tire helps, but a long highway run in a 1970 Citroen still calls for an honest assessment of the entire vehicle, not just confidence in the speed symbol.

Inflation pressure for a 1970 Citroen should be set by the vehicle manufacturer’s recommendation for the model and by the tire maker’s service information for the exact tire. Pressure-related figures do appear on some sizes here, but they are tied to specific products rather than the whole model range. For example, one 135R15 carries 780 pounds at 44 psi, while one 185R15 carries 1355 pounds at 35 psi.

Those numbers should not be transferred from one size to another or from one product line to another as if they were factory inflation settings. Use the owner’s manual, factory placard if present, and the tire manufacturer’s guidance together. That is especially important on 1970 Citroen vehicles because the 2 CV and the larger DS-family cars differ significantly in tire size and intended vehicle role, even though all use 15-inch rims.

Before a longer drive in a 1970 Citroen, inspect each tire for cracking, cuts, bulges, embedded debris, uneven wear, and correct cold inflation. Make sure the spare is usable and aired up, and check valve stems closely, especially on any tube-type application. On DS, ID, and SW models using tube-type 180R15 tires, the condition of the tube-related hardware matters as much as tread appearance.

That tire inspection should be part of a broader pre-drive check that suits a 1970 vehicle: brakes, fluid levels, steering response, and lighting all deserve attention before a tour. Older collector cars often fail from accumulated small issues rather than one dramatic defect. Spending a few minutes on tires, pressure, and the spare can prevent the most common roadside interruptions and makes the rest of your mechanical check far more meaningful.