1956 AC Saloon Tires

The 1956 AC Saloon uses two primary tire sizes: 185R16 in radial construction and 670-16 in bias-ply construction. Both sizes are associated with the car’s 16-inch wheel diameter, so the fitment decision is tied as much to construction type as to the size code itself.

Choosing between them starts with the car’s current wheel setup and the type of driving planned. A car kept close to period presentation may stay with 670-16 bias-ply tires, while an owner looking for a radial-format option may focus on 185R16. It is smart to confirm wheel width, overall tire clearance, and whether the car has been altered from its original wheel or suspension setup.

The 1956 AC Saloon uses a 16-inch rim with both of its primary tire sizes. That applies whether the car is fitted with the 670-16 bias-ply size or the 185R16 radial size, so rim diameter remains consistent even though the construction changes.

Rim diameter is only the first check, because wheel width also matters when comparing tire options. Some 185R16 radial products call for wider rims than the narrower 670-16 bias-ply fitment typically uses. Measuring the actual wheels on the car is worthwhile, especially if the Saloon has seen wheel replacements or restoration work over the years.

The 1956 AC Saloon Base can use the same two primary sizes found at the model level: 185R16 in radial construction and 670-16 in bias-ply construction. That means the Base does not force a single size choice, but instead leaves room for a construction-based decision.

For the owner, that makes the next step more about vehicle setup and intended use than trim identification. A Saloon restored around a traditional look may lean toward the numeric bias-ply size, while a car driven more regularly may be evaluated around the radial option. Wheel width and chassis clearance should still be checked before changing from one construction and size format to the other.

670-16 is a bias-ply tire size for the 1956 AC Saloon. It uses the older numeric sizing format associated with vintage tires, and the available products in this fitment are bias-ply constructions rather than radial tires.

That matters because a bias-ply setup influences both appearance and tire selection. A buyer comparing 670-16 options should focus on keeping the correct 16-inch rim diameter and confirming that the wheel width suits a bias-ply tire in this size. Anyone considering a move to radial construction should treat that as a separate fitment decision rather than assuming the change is automatic.

The 1956 AC Saloon can be fitted with either a 670-16 bias-ply tire or a 185R16 radial tire. Bias-ply tires support a more traditional period-style presentation, while the radial option gives the car a later tire construction format within the same 16-inch rim diameter.

The better choice depends on how the car is used and how closely the owner wants the tire presentation to follow an earlier look. A restoration-minded car may remain bias-ply, while a driver-oriented Saloon may be evaluated around radial options from Michelin, Avon, or Vredestein. Before changing constructions, inspect wheel width, clearance at steering lock, and the condition of suspension and steering components.

A move from 670-16 bias-ply to 185R16 radial on a 1956 AC Saloon starts with the wheel itself. Both use a 16-inch rim, but the actual wheel width, the tire’s approved rim-width range, and the car’s available clearance should all be checked before the change is made.

Radial conversion is also a good time to inspect steering, suspension, and alignment condition, since an older chassis can react differently once tire construction changes. Look closely at fender clearance, turning clearance, and whether the car still carries its original wheel setup. A Saloon with replacement wheels or altered ride height deserves extra attention before settling on a radial tire.

The first decision for a 1956 AC Saloon is whether the car should run a 670-16 bias-ply tire or a 185R16 radial. Both use a 16-inch rim, but they represent different sizing systems, different constructions, and different priorities in how the car looks and is used.

Once the correct size and construction are settled, compare the available tire series, brand options, and wheel-width suitability. A buyer focused on a traditional presentation may stay with the numeric bias-ply format, while a buyer planning more road miles may prefer a radial choice. It also helps to consider load information, actual wheel measurements, and whether the car has been modified over time.

The available tires for the 1956 AC Saloon are offered in blackwall sidewall styling. That applies across the radial 185R16 choices and the bias-ply 670-16 choices, so sidewall presentation is consistent even though construction and tire series vary.

With sidewall style staying simple, the real visual difference comes from the tire’s shape, sizing format, and construction. A 670-16 bias-ply tire delivers a more traditional vintage-style presentation, while a 185R16 radial has a different overall character despite also being a blackwall. That makes the sidewall question less about trim detail and more about the overall look the owner wants under the car.

Tires for the 1956 AC Saloon are available from Michelin, Avon, Vredestein, and Firestone. The 185R16 radial size includes Michelin X Radial, Avon Turbosteel, and Vredestein Sprint Classic options, while the 670-16 bias-ply size includes Firestone and Avon offerings.

Brand choice should be treated as one part of a larger fitment decision rather than the starting point. It makes more sense to first confirm whether the car should remain bias-ply or move to radial construction, then compare series, rim-width suitability, and load details within that correct size family. That approach keeps the selection grounded in fitment instead of appearance alone.

For a period-style 1956 AC Saloon, the 670-16 bias-ply size is the natural starting point because it uses a vintage numeric format and traditional bias-ply construction. That combination generally suits owners who want the car’s tire presentation to stay closer to an earlier visual character.

Appearance goals should still be balanced against how the Saloon will actually be driven. A radial 185R16 may be worth considering for regular road use, but it changes the construction type and the visual impression of the tire. When exact originality matters, the smartest next step is to compare the car against marque references, period photos, or restoration records before making a final choice.

Tire construction changes more than ride behavior on a restored 1956 AC Saloon; it also changes how the car sits visually. A 670-16 bias-ply tire carries a vintage numeric size format and a traditional look, while a 185R16 radial presents the car with a more modern radial-style tire profile.

Since the available choices are blackwalls in both constructions, the biggest appearance shift comes from the tire’s basic shape and period character rather than sidewall decoration. Owners restoring for show, preservation, or historical consistency often place extra weight on that distinction. Buyers restoring a driver may decide that construction choice matters more for use than for strict historical presentation.

Yes, modifications can affect tire fitment on a 1956 AC Saloon even when the tire size itself is correct. Changes to wheel width, wheel offset, ride height, steering components, or body clearance can all alter how a 670-16 bias-ply or 185R16 radial tire fits on the car.

That is especially important on older collector cars, where decades of repairs or upgrades may have changed the setup without being obvious at first glance. A Saloon with replacement wheels should have its wheel measurements verified before new tires are chosen. Clearance at full steering lock and through suspension movement deserves attention as well, particularly when changing from one tire construction to another.

Before driving a 1956 AC Saloon on new tires, inspect the wheels, valve stems, and the general condition of the steering and suspension. A fresh set of tires will perform best when mounted on sound 16-inch wheels that are true, properly fitted, and appropriate in width for the chosen 670-16 or 185R16 size.

Road-readiness also means checking inflation, lug torque, and basic clearance once the tires are installed. A short, careful initial drive can reveal rubbing, pull, vibration, or other issues that deserve correction before longer use. On a collector car that has been sitting, it is also wise to look at brake function and wheel-bearing condition rather than treating tires as the only variable.

Collector-car tires on a 1956 AC Saloon should be maintained with regular pressure checks, visual inspections, and attention to age as well as tread. That applies whether the car runs 670-16 bias-ply tires or 185R16 radials, since low annual mileage can hide condition issues that matter more than simple wear.

Good maintenance includes watching for sidewall cracking, bulges, cuts, flat spotting, and slow air loss, especially after long storage. The car should be kept away from prolonged sun, heat, moisture, and ozone sources when possible. Even a lightly used Saloon benefits from periodic inspection before road trips, because vintage vehicles often spend enough time parked for tire condition to change unnoticed.