1967 Morgan 4-4 Series Tires

The 1967 Morgan 4-4 Series uses two fitment paths: 560-15 in bias-ply construction and 155R15 in radial construction. Both are 15-inch tire sizes, and the 1967 Morgan 4-4 Series Base is associated with both of them rather than with separate sub-model-specific sizing.

That means the main choice is construction and tire style, not simply finding a single universal replacement. A buyer should first confirm the actual wheel setup on the car, then decide whether the goal is a more period-style bias-ply look or a radial-format tire in the correct overall fitment family.

The tire sizes used on the 1967 Morgan 4-4 Series are built around a 15-inch rim diameter. Both the 560-15 bias-ply fitment and the 155R15 radial fitment use that same 15-inch wheel diameter, so the first rim question is diameter consistency rather than choosing between different wheel sizes.

Diameter alone is not the whole fitment story, though. Wheel width still matters, especially when comparing a narrow vintage bias-ply with a metric radial, so it is worth checking the actual rim width on the car before selecting a tire series or considering a radial-equivalent conversion.

560-15 is a numeric bias-ply tire size. The 5.60 figure refers to an approximate nominal section width in inches, and the 15 refers to the rim diameter in inches. On a 1967 Morgan 4-4 Series, that size represents the traditional bias-ply fitment path rather than a modern metric radial format.

For a buyer, that matters because the size code carries both a look and a construction type. Choosing 560-15 keeps the vintage numbering system and opens up blackwall, narrow whitewall, and wide whitewall bias-ply options, while a switch away from it should be checked carefully against wheel width and clearance.

On the 1967 Morgan 4-4 Series, 560-15 is the bias-ply fitment. The radial-format fitment associated with this car is 155R15, so the distinction is not just the size code but the entire construction style and the tire families available within each format.

That makes construction choice a central part of tire selection. A 560-15 bias-ply suits a more traditional presentation, while the radial path changes the tire format and product mix. Before changing construction, check the wheel width on the car and make sure the tire choice matches clearance, stance, and intended road use.

Two radial equivalents are available for 560-15. The first is 155R15, which is the 80-series metric radial equivalent, and the second is 560R15, which is the bias-look radial equivalent. Those give the 1967 Morgan 4-4 Series owner a conventional metric radial path and a radial option with a more traditional visual presentation.

A recommended rim-width range of 4 to 5 inches applies when evaluating those equivalents. Even with the correct rim diameter, an equivalent should still be checked against the car’s actual wheels, tire-to-body clearance, and the overall look desired, especially on a narrow-bodied sports car such as the Morgan 4-4 Series.

Either direction can make sense on a 1967 Morgan 4-4 Series because both a 560-15 bias-ply and a 155R15 radial are associated with the car. The right choice depends on whether the priority is preserving a traditional period-style tire presentation or selecting from the wider range of classic radial offerings in 155R15.

That decision should start with the car’s current wheels and how the Morgan will be used. A bias-ply keeps the vintage format and sidewall style choices, while a radial changes both construction and size convention. Wheel width, clearance, and the desired appearance should all be confirmed before committing either way.

Start with the fact that 560-15 is the bias-ply fitment path for the 1967 Morgan 4-4 Series. From there, the main choices are sidewall appearance, tire series, brand, and wheel-width compatibility. Available options include blackwall, narrow whitewall, and wide whitewall versions from Firestone, US Royal, Coker Classic, and Pro-Trac.

The right selection depends on the balance between appearance and use. A restoration-oriented car may call for a traditional sidewall treatment, while another owner may prefer a plain blackwall. It also helps to compare rim-width specifications and load figures where listed so the tire suits the actual wheel and driving plan.

Sidewall choices for the 1967 Morgan 4-4 Series include blackwall, narrow whitewall, and wide whitewall. The variety appears mainly in the 560-15 bias-ply range, while the 155R15 radial products associated with this car are blackwall tires. That gives buyers a clear visual split between the two fitment directions.

A sidewall choice changes the car’s presentation more than many owners expect, especially on a narrow-fendered British sports car. Whitewall options can create a more vintage look, while blackwalls keep things more restrained. Appearance should be weighed alongside construction type, because sidewall style is only one part of the decision.

The 1967 Morgan 4-4 Series has tire options from Firestone, Michelin, Avon, Vredestein, US Royal, Coker Classic, and Pro-Trac. Brand choice depends partly on size and construction, since the 155R15 radial range and the 560-15 bias-ply range do not carry the exact same brand mix or series lineup.

That means the first step is choosing the correct fitment direction, then comparing the brands available within that size. Once size and construction are settled, it becomes easier to compare series character, sidewall style, rim-width specs, and any load or weight figures that matter to the way the Morgan will be driven.

For a period-style 1967 Morgan 4-4 Series, the 560-15 bias-ply fitment is the natural place to begin. That size preserves the vintage numeric format and is available in traditional blackwall, narrow whitewall, and wide whitewall versions, which makes it easier to match the car’s era and the visual style of the restoration.

The exact brand or sidewall treatment should be chosen with care, because period-style does not automatically mean factory-original. Owners pursuing strict originality should compare the tire choice against marque references, photos, and restoration documentation. For many cars, though, staying with the 560-15 bias-ply format captures the right visual character.

Tire construction changes the look of a restored 1967 Morgan 4-4 Series in visible ways, even when the rim diameter stays the same. A 560-15 bias-ply maintains a more traditional vintage presentation, while a 155R15 radial introduces a later-style sizing format and a different product mix that can subtly alter the car’s stance and visual feel.

That matters on a Morgan because the tire is a prominent part of the car’s profile. A restoration-minded buyer should think about whether the goal is authenticity of era, a cleaner touring look, or a blend of vintage appearance and radial construction. Sidewall treatment also influences the final result almost as much as size format.

Yes, modifications can affect tire fitment on a 1967 Morgan 4-4 Series even when the tire size itself is correct. Changes to wheel width, wheel design, suspension height, steering components, or body clearance can all alter how a 560-15 or 155R15 tire sits and moves within the available space.

That is especially important on a narrow classic sports car where clearances are often tighter than on larger vehicles. Any Morgan with aftermarket wheels or suspension changes should have wheel diameter, wheel width, and turning clearance checked carefully before a new tire is chosen, particularly when moving between bias-ply and radial construction.

Before driving a 1967 Morgan 4-4 Series on new tires, inspect the wheels for correct diameter and condition, verify that the tires seat properly, and confirm there is no rubbing at full steering lock or through suspension movement. Tire pressure should also be set correctly for the specific tire being used.

It also helps to look beyond the tires themselves. Old sports cars can have worn bushings, loose steering parts, or alignment issues that affect how a new tire behaves. A short initial road test followed by a recheck for clearance, air loss, and even wear pattern is a sensible step before longer use.

Collector-car tires on a 1967 Morgan 4-4 Series should be inspected regularly for cracking, cuts, bulges, uneven wear, and slow air loss, whether the car uses 560-15 bias-ply tires or 155R15 radials. Low annual mileage does not prevent tire aging, so condition matters as much as tread depth on a lightly used Morgan.

Storage habits also play a major role. Keeping the car away from prolonged sunlight, moisture, heat, and ozone sources helps preserve the tires between drives. Pressure checks should be part of routine maintenance, and any tire that shows age-related deterioration deserves attention before the car is taken back onto the road.