1969 Simca 1204 Tires

A 1969 Simca 1204 can use 145R13 or 520-13 on the Sedan, and 155R13 or 560-13 on the Wagon. The radial sizes are 145R13 for the Sedan and 155R13 for the Wagon, while the bias-ply sizes are 520-13 for the Sedan and 560-13 for the Wagon.

The key is identifying the body style first, because the Wagon uses a wider fitment than the Sedan in both constructions. Once that is settled, the next decision is whether the car should keep a traditional bias-ply look or use the radial size associated with that same sub-model and 13-inch wheel diameter.

All four primary tire sizes for the 1969 Simca 1204 are built around a 13-inch rim diameter. That includes the radial sizes 145R13 and 155R13 as well as the numeric bias-ply sizes 520-13 and 560-13.

Rim diameter is only the first check, because wheel width still matters when moving between bias-ply and radial choices or comparing different product lines. A car that has been fitted with replacement wheels over the years should have its actual wheel dimensions confirmed before choosing a tire simply because the diameter matches.

The 1969 Simca 1204 has more than one tire size because the Sedan and Wagon use different fitments, and each body style appears in both radial and bias-ply form. The Sedan uses the narrower pair, while the Wagon uses the wider pair, all on 13-inch rims.

That means the tire decision is not just about construction type. A Wagon owner should not assume a Sedan size is close enough, and a bias-ply owner considering a radial should still begin with the correct Wagon or Sedan baseline before comparing equivalent sizing and wheel-width requirements.

520-13 is a numeric bias-ply tire size for the 1969 Simca 1204 Sedan. It is the traditional construction option associated with that sub-model, while 145R13 is the radial size used on the Sedan in a euro-metric format.

Choosing between them changes more than appearance alone, because bias-ply and radial tires have different construction and size conventions. The best approach is to confirm the car is a Sedan, verify the wheel width, and then decide whether the priority is preserving a period-style presentation or staying with the radial fitment associated with the car.

Radial equivalents for 560-13 include 155R13, P155/75R13, and P155/70R13. In that group, 155R13 is the 80-series metric radial equivalent, P155/75R13 is the 75-series P-metric radial equivalent, and P155/70R13 is the 70-series P-metric radial equivalent.

Those options give a Wagon owner several radial sizing formats to compare rather than one automatic substitute. A 4- to 5-inch rim-width range is the recommended starting point for the equivalent chart, and the final choice should still be checked against the actual wheel, tire dimensions, and body clearance on the car.

Start by confirming whether the car is a Sedan or Wagon, because the bias-ply sizes and radial-size paths are different for each one. Then verify the actual 13-inch wheel width and compare the intended radial size against the car's available clearance and the tire's intended rim-width range.

A conversion should also account for the condition of suspension and steering components, especially on a small front-wheel-drive collector car that may have seen long storage or older repairs. The goal is not simply to mount a radial, but to make sure the wheel, tire size, and vehicle setup all work together safely and cleanly.

A 520-13 tire choice for a 1969 Simca 1204 should begin with confirming the car is a Sedan and that a bias-ply tire matches the intended use. Within that size, available options differ by brand, sidewall style, tire series, rim-width specification, load capacity, and whether the look is more plain blackwall or more decorative whitewall.

That makes 520-13 less about basic fitment and more about matching the tire to the character of the car. A restoration-oriented Sedan may call for a more traditional sidewall treatment, while a driver-focused car might lead the owner to compare construction alternatives and equivalent radial paths before making a final decision.

The 1969 Simca 1204 has blackwall, narrow whitewall, and wide whitewall tire choices depending on the size and construction selected. The radial offerings in 145R13 and 155R13 are blackwall, while the bias-ply sizes add whitewall options in both narrower and wider presentations.

Sidewall style should follow the look you want from the car rather than be treated as a separate cosmetic detail. On a compact European economy car, blackwall tires tend to preserve a simpler appearance, while narrow or wide whitewalls can push the car toward a more customized or restoration-oriented visual direction.

Tires for the 1969 Simca 1204 are available from Michelin, Firestone, Dunlop, BFGoodrich, and Premium Sport. Brand availability depends on the specific size, with radial choices appearing in Michelin, Firestone, and Dunlop lines and bias-ply choices appearing in Firestone, BFGoodrich, and Premium Sport offerings.

Brand choice should be made after confirming the correct Sedan or Wagon fitment and deciding whether the car should stay with radial or bias-ply construction. Once those decisions are settled, comparing series, sidewall style, rim-width range, and appearance usually matters more than choosing a brand name in isolation.

A period-style 1969 Simca 1204 usually starts with the proper bias-ply size for the body style: 520-13 for the Sedan or 560-13 for the Wagon. Those sizes preserve the older construction style and open the door to traditional blackwall or whitewall presentations that suit a restoration-oriented approach.

The exact appearance choice depends on how authentic or interpretive the project needs to be. When strict originality matters, period photos, marque references, and vehicle-specific historical records are worth checking before settling on a sidewall treatment, since the correct size alone does not automatically answer the appearance question.

Tire construction changes the visual character of a restored 1969 Simca 1204 more than many owners expect. Bias-ply tires in 520-13 or 560-13 give the car a more traditional small-car stance, while radial sizes such as 145R13 or 155R13 bring a later, more modern presentation in euro-metric form.

That difference matters even before the car moves, because sidewall profile and overall presentation help define whether the car reads as restored, preserved, or mildly updated. Whitewall choices on the bias-ply side can further shape that look, so construction and sidewall style should be considered together rather than separately.

Yes, modifications can affect tire fitment on a 1969 Simca 1204 even though all primary sizes use a 13-inch rim. Aftermarket wheels, wheel-width changes, suspension alterations, ride-height changes, or body repairs can all change how much room the car has for the correct Sedan or Wagon tire size.

That is especially important when moving from a bias-ply fitment to a radial equivalent, because the sizing system changes even if the rim diameter stays the same. Checking the actual wheel dimensions and clearance at steering lock and suspension travel is a better safeguard than relying on the nominal size alone.

Before driving a 1969 Simca 1204 on new tires, inspect the wheels for damage, confirm the lug hardware is correct, and make sure the tires match the car's actual Sedan or Wagon fitment. It is also worth checking for adequate clearance at the fenders and suspension, especially if the car has had wheel or suspension changes.

Road readiness goes beyond the tire itself on a low-use collector car. Tire pressure, valve stems, alignment condition, brake function, and any signs of steering or suspension looseness should be reviewed so the new tires are not being asked to compensate for problems elsewhere on the vehicle.

Tires on a collector 1969 Simca 1204 should be checked regularly for pressure loss, sidewall cracking, tread wear, cuts, bulges, and age-related deterioration. A car that is driven infrequently can still have tire issues, especially if it spends long periods parked or stored in changing temperatures.

Proper storage helps preserve both bias-ply and radial tires. Keeping the car away from prolonged sunlight, moisture, and ozone sources, moving it occasionally to avoid flat spotting, and giving the tires a careful inspection before longer drives will do more for dependable use than mileage alone suggests.