1960 Morgan 4-4 Series Tires

The 1960 Morgan 4-4 Series uses two primary tire sizes: 560-15 in bias-ply construction and 155R15 in radial construction. Both sizes are associated with 15-inch wheels, so the size choice is tied more to construction type and wheel setup than to a different rim diameter.

That means the first step is confirming what is actually on the car today. A Morgan that has stayed close to an earlier-style setup may suit the 560-15 bias-ply format, while a car set up around radial use may point toward 155R15. Wheel width, overall tire dimensions, and clearance should be checked before changing from one size convention to the other.

The 1960 Morgan 4-4 Series uses a 15-inch rim with both of its associated tire sizes. That applies whether the car is running the traditional 560-15 bias-ply size or the 155R15 radial size, so rim diameter remains consistent across the covered fitments.

Diameter is only part of the fitment picture, though. Before choosing tires, it still helps to confirm the actual wheel width on the car, especially if the Morgan has had replacement wheels fitted over the years. A correct 15-inch diameter does not by itself guarantee that every tire choice will suit the existing wheel or maintain proper clearance.

560-15 is a vintage numeric bias-ply tire size. In that format, 560 represents a nominal section width of about 5.60 inches, and 15 identifies the wheel diameter in inches. On the 1960 Morgan 4-4 Series, it is the traditional bias-ply size rather than a modern metric radial designation.

That older sizing style matters because it points to a different construction and appearance than a radial like 155R15. Buyers considering 560-15 usually focus on maintaining a period-style look, while also choosing between blackwall, narrow whitewall, or wide whitewall presentations. It is wise to confirm the car’s current wheels and intended use before moving away from that original-style numeric format.

On the 1960 Morgan 4-4 Series, 560-15 is a bias-ply tire size. It uses the older numeric sizing format associated with vintage construction, and it is separate from the 155R15 radial fitment that is also used on this car.

That distinction affects both appearance and setup. A 560-15 bias-ply keeps a more traditional look and is available in several sidewall styles, while radial alternatives follow a different construction type and sizing convention. Anyone moving between them should confirm wheel width, compare overall dimensions, and make sure steering and body clearances remain appropriate for the car’s current configuration.

Radial equivalents for 560-15 on a 1960 Morgan 4-4 Series include 155R15 and 560R15. The 155R15 size is the 80-series metric radial equivalent, while 560R15 is the bias-look radial equivalent for owners who want a radial construction with a more traditional visual character.

Those two options serve different goals even though both are radial alternatives to 560-15. The 155R15 follows a Euro-metric radial format, while 560R15 stays visually closer to the original numeric size concept. A 4-5 inch rim-width range is associated with these equivalents, and it remains smart to verify wheel compatibility and vehicle clearance before making the switch.

The right choice depends on how the 1960 Morgan 4-4 Series is set up and what you want from the car. A 560-15 bias-ply keeps the traditional size format and appearance, while 155R15 provides a radial option in a classic Euro-metric size. A bias-look radial equivalent in 560R15 is also available.

Owners focused on period-style presentation often stay with the bias-ply size, while others prefer to evaluate a radial format for regular road use. The decision should be made with the actual wheel width, tire dimensions, and the car’s current suspension and clearance in mind. On an older Morgan, matching the tire choice to the car’s real-world setup matters more than choosing by size name alone.

Start with the correct primary size and construction for the way the car is set up: 560-15 for bias-ply or 155R15 for radial use. From there, compare wheel compatibility, intended appearance, and whether the Morgan is being kept close to a traditional presentation or prepared for more regular road driving.

Product differences can also matter. In 155R15, the choices center on blackwall radial offerings across several brands and series. In 560-15, the lineup expands to blackwall, narrow whitewall, and wide whitewall bias-ply styles. Looking at tire series, rim-width specifications, and load figures where shown gives a more useful comparison than choosing by brand name alone.

Sidewall choice depends on the tire size and construction you select. The 155R15 radial options for the 1960 Morgan 4-4 Series are offered in blackwall form, while the 560-15 bias-ply size is available in blackwall, narrow whitewall, and wide whitewall styles.

That makes sidewall selection part of the car’s visual character, especially on a compact British sports car where the tire is easy to notice. Buyers pursuing a more understated or sporting presentation often look first at blackwalls, while whitewalls create a different period-style effect. The best approach is to match the sidewall treatment to the car’s overall restoration direction and wheel setup.

The 1960 Morgan 4-4 Series has tire options from Firestone, Michelin, Avon, Vredestein, US Royal, Coker Classic, and Pro-Trac. Brand availability depends on the size you choose, with the radial 155R15 group and the bias-ply 560-15 group offering different lineups and tire series.

Brand names are only one part of the decision. It helps to compare construction type first, then look at tire series, sidewall style, and wheel-width compatibility within the size that suits the car. That is especially important here because a Morgan owner may be balancing traditional appearance, radial versus bias-ply preferences, and the realities of an older wheel and suspension setup.

For a period-style 1960 Morgan 4-4 Series, the 560-15 bias-ply size is the most traditional starting point. It uses the vintage numeric format and is available in several visual treatments, including blackwall, narrow whitewall, and wide whitewall, which lets the tire contribute more strongly to the car’s restored character.

That does not automatically make every 560-15 the right historical choice for every Morgan. Owners who want exact originality should compare their car against marque references, period photos, or restoration records before settling on a sidewall treatment. For many buyers, though, staying with the bias-ply size keeps the overall look closer to the car’s original era than switching immediately to a modern radial format.

Tire construction changes the visual impression of a restored 1960 Morgan 4-4 Series because the car can wear either a 560-15 bias-ply or a 155R15 radial. The bias-ply size carries the older numeric format and traditional sidewall choices, while the radial size presents the car with a more modern metric-style tire designation.

That means construction is not only a driving decision but also an appearance decision. A bias-ply setup often better supports a traditional restoration-oriented presentation, especially if sidewall styling is part of the plan. A radial can still suit the car well, particularly when road use matters, but owners should choose with a clear idea of whether visual authenticity or modernized practicality is the stronger priority.

Yes, modifications can affect tire fitment on a 1960 Morgan 4-4 Series even when the tire size itself appears correct. Aftermarket wheels, changes in wheel width, suspension alterations, or body and fender work can all change how either a 560-15 bias-ply or a 155R15 radial sits on the car.

Older sports cars often accumulate changes over time, so it helps to inspect the car as it exists now rather than assuming it still matches an earlier setup. Check wheel diameter, wheel width, steering clearance, and the space around the tire through full suspension and steering movement. Those checks matter before changing construction type as much as before changing size.

Before driving a 1960 Morgan 4-4 Series on new tires, inspect wheel condition, confirm the tires are seated properly, and make sure inflation is appropriate for the tire being used. It is also worth checking for any obvious interference at the fenders, suspension components, or steering stops once the car is back on the ground.

A short, careful test drive is a sensible next step on a vintage Morgan. Listen for rubbing, feel for any unusual pull or vibration, and recheck pressure after the first outing. Since these cars are often driven infrequently, it is also smart to inspect the rest of the chassis and steering for wear that may become more noticeable once fresh tires are installed.

Tires on a collector 1960 Morgan 4-4 Series should be maintained with regular pressure checks, routine visual inspection, and careful storage habits. Watch for tread wear, sidewall cracking, bulges, cuts, or signs of slow air loss, especially on a car that may sit for long periods between drives.

Storage conditions matter almost as much as mileage on a lightly used British sports car. Keeping the Morgan away from prolonged sunlight, excess heat, moisture, and ozone sources helps protect tire condition over time. Even if the tread still looks usable, an older collector tire deserves periodic inspection before road use so age-related issues do not get overlooked.