1963 Simca Etoile Tires

The 1963 Simca Etoile is associated with two tire sizes: 560-14 in a bias-ply construction and 155R14 in a radial construction. Both sizes use a 14-inch rim, so the main difference is not wheel diameter but the tire's sizing system, construction type, and the kind of driving feel or appearance the owner wants from the car.

Choosing between them starts with confirming what is already on the vehicle and whether the wheels suit the intended tire. A restoration-oriented car may stay with 560-14 for a more traditional look, while a car set up for radial use may use 155R14. Wheel width, sidewall clearance, and the condition of the suspension and steering components should all be checked before changing direction.

The 1963 Simca Etoile uses a 14-inch rim diameter with both of its associated tire sizes, 560-14 and 155R14. Even though the tire constructions differ, the wheel diameter itself remains the same. That makes rim diameter straightforward, but it does not mean every 14-inch wheel is automatically suitable for both tire styles.

The more important next step is checking wheel width against the tire being considered. The 560-14 bias-ply products are built around narrower rim-width ranges than the 155R14 radial options, so the actual wheel on the car matters. Cars that have had wheels changed over the years should be measured directly instead of relying on assumptions from the original setup.

560-14 is a numeric bias-ply tire size. The 560 designation refers to a nominal section width of about 5.60 inches, and the 14 identifies the rim diameter in inches. On a 1963 Simca Etoile, that size represents the period-style bias-ply fitment and is offered in traditional blackwall, narrow whitewall, and wide whitewall presentations.

That sizing format is useful to understand because it differs from a later radial code like 155R14. A buyer comparing the two should not treat them as the same type of tire simply because both fit 14-inch wheels. Construction, wheel-width needs, and the visual character of the finished car all become part of the decision once the size code is properly understood.

560-14 is a bias-ply tire size for the 1963 Simca Etoile. It uses the older numeric sizing format commonly seen on vintage cars, and the available products in this size fall within bias-ply construction. For this Simca, the radial-format alternative is 155R14 rather than a radial version of the 560-14 size itself.

That distinction matters because a bias-ply tire changes both the car's appearance and its setup considerations. Bias-ply products in 560-14 are matched to narrower rim-width ranges and are available with blackwall or whitewall sidewalls. Anyone changing from 560-14 bias-ply to 155R14 radial should verify wheel width, suspension condition, and body or steering clearance before making the switch.

Both paths are relevant on a 1963 Simca Etoile. The 560-14 bias-ply size suits owners looking for a more traditional period-style presentation, especially with blackwall or whitewall choices in the classic BFGoodrich bias-ply series. The 155R14 size uses radial construction and keeps the car in a vintage European sizing format rather than a modern P-metric replacement.

The better choice depends on how the car is being used and how closely the owner wants to maintain a traditional look. A restoration-minded car may favor the bias-ply route, while a regularly driven car may be set up around radial use. The decision should also account for actual wheel width, the current suspension setup, and whether the car has been modified over time.

A 1963 Simca Etoile moving from 560-14 bias-ply to 155R14 radial still stays on a 14-inch rim, but the wheel itself should be checked carefully. Radial tires place different demands on rim width and sidewall shape than a narrow bias-ply tire, so the existing wheels need to be measured rather than assumed correct just because the diameter matches.

Clearance is the next area to inspect. Steering travel, fender space, and suspension condition all matter, especially on a compact vintage car where small setup changes can affect fitment. It also helps to inspect alignment, worn bushings, and the overall condition of the car before the conversion, since radial tires can reveal play or wear that old tires may have masked.

Start with the two correct sizes for the 1963 Simca Etoile: 560-14 bias-ply and 155R14 radial. From there, the real choice is construction, wheel compatibility, and the kind of appearance the car should have. The bias-ply size leans toward traditional presentation, while the radial size keeps a classic European format with a more modern construction style.

Product details also help narrow the choice. The 560-14 options include blackwall, narrow whitewall, and wide whitewall styles, while 155R14 is available as a blackwall radial from Michelin and Firestone. Rim-width requirements, load figures where listed, and how the car is used on the road should all be part of the comparison before settling on one tire.

The 1963 Simca Etoile has sidewall variety mainly in the 560-14 bias-ply size. That size is available as a blackwall, a narrow whitewall, and a wide whitewall. In 155R14 radial form, the available options are blackwall tires, which keeps the look more understated and closer to a simple European touring presentation.

Sidewall style can change the finished character of the car even when the basic fitment remains correct. A whitewall can push the Simca toward a more restoration-oriented visual statement, while a blackwall keeps things cleaner and less formal. Matching the sidewall to the era, trim style, and intended look of the car is often just as important as choosing the right construction.

The 1963 Simca Etoile has tire options from Michelin, Firestone, and BFGoodrich. Michelin and Firestone appear in the 155R14 radial size, while BFGoodrich covers the 560-14 bias-ply fitment. That split also mirrors the broader decision between a classic euro-metric radial approach and a more traditional numeric bias-ply presentation.

Brand choice should be weighed alongside the actual tire series, sidewall style, and wheel-width requirements rather than treated as the only decision point. A buyer comparing options should first confirm the intended size and construction, then look at details such as blackwall versus whitewall appearance, listed load capacity, and whether the car is being restored for show use or driven more regularly.

For a period-style 1963 Simca Etoile, the 560-14 bias-ply size is the most natural starting point because it preserves the vintage numeric format and traditional tire profile associated with the car's era. BFGoodrich offers that size in the Silvertown Classic Bias Ply series, giving owners a restoration-oriented choice without forcing the look of a later radial conversion.

The exact sidewall treatment depends on how the finished car is being presented. Blackwall keeps the look restrained, while narrow whitewall or wide whitewall options add more visual emphasis. When originality is especially important, it is worth checking marque references or period photos to decide which sidewall style best matches the specific car being restored.

Tire construction changes more than ride characteristics on a restored 1963 Simca Etoile; it also changes the visual language of the car. A 560-14 bias-ply tire gives a more traditional profile and period-style presence, especially when paired with whitewall choices. A 155R14 radial still looks appropriately vintage in size format, but it presents the car with a later radial character.

That visual difference matters on a small European car where tire proportion is easy to notice. Owners restoring for authenticity often begin with the bias-ply fitment, while drivers building a road-oriented car may prefer the radial path. Either way, the final look should be judged with the actual wheels, ride height, and sidewall style in mind rather than by size code alone.

Yes, modifications can affect tire fitment on a 1963 Simca Etoile even when the tire size itself is correct. Aftermarket wheels, altered ride height, brake changes, or suspension work can all change the space available around the tire. That matters with both 560-14 bias-ply and 155R14 radial fitments because the two constructions do not present exactly the same way on the wheel.

A modified car should be checked for actual wheel diameter, wheel width, and clearance at full steering travel rather than relying on the original fitment alone. Looking at fender space, inner-wheelhouse clearance, and any signs of contact under compression helps avoid problems. A compact vintage car leaves little room for guesswork once its original wheel and suspension setup has been altered.

Before driving a 1963 Simca Etoile on new tires, inspect the wheels for correct diameter and width, make sure the tires are seated properly, and verify that there is no contact at the fenders or steering components. It also helps to check the condition of the suspension, steering linkage, and alignment so the new tires are not immediately affected by worn hardware.

The tires themselves should be checked for proper inflation, secure valve stems, and any signs of air loss after installation. On an older car, a short test drive followed by another inspection is a sensible step. Looking again for rub marks, unusual wear, or vibration can reveal setup issues early before the car is taken on a longer road outing.

Collector-car tires on a 1963 Simca Etoile should be maintained with regular pressure checks, visual inspections, and attention to age even if the car is driven only occasionally. Whether the car runs 560-14 bias-ply tires or 155R14 radials, sidewall cracking, tread separation, bulges, cuts, and slow air loss deserve attention long before mileage alone would suggest replacement.

Storage conditions also matter. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve tire condition between drives. It is also smart to inspect the tires before each outing rather than only on a calendar schedule, since collector vehicles often sit for long periods and can develop flat spotting or visible aging without accumulating many miles.