1957 MG MGA Tires

A 1957 MG MGA uses two primary tire sizes: 560-15 in bias-ply construction and 155R15 in radial construction. Both sizes are tied to a 15-inch rim, so the fitment question is less about wheel diameter and more about which construction style belongs on the car as it sits today.

That matters because a car restored around bias-ply tires may be chosen for period-style appearance, while another MGA may already be running radial-compatible wheels and tires. Start by confirming the current wheel setup and deciding whether the goal is traditional presentation, road-use convenience, or a careful move from bias-ply sizing into a radial alternative.

The 1957 MG MGA uses a 15-inch rim with both of its primary tire sizes. That remains true whether the car is fitted with a 560-15 bias-ply tire or a 155R15 radial, so the wheel diameter stays consistent across the main fitment choices.

Wheel diameter is only part of the picture, though. Before selecting tires, check the actual wheel width on the car and make sure it matches the intended tire’s specifications, especially if the MGA has changed hands or received replacement wheels over the years. A 15-inch wheel can still vary enough in width to affect which tire choice makes the most sense.

Yes. The 1957 MG MGA 1600 follows the same fitment pattern, using either 560-15 bias-ply tires or 155R15 radial tires. Both choices stay on a 15-inch rim, so there is no separate rim-diameter change to sort out for this sub-model.

That makes the buying decision more about construction and appearance than about a special trim-specific size. A 1600 being kept in a traditional restoration style may point toward 560-15 bias-ply options, while a car intended for broader road use may lead the owner to evaluate 155R15 radials or a radial equivalent after checking wheel width and clearance.

On a 1957 MG MGA, 560-15 is the bias-ply tire size. It is the vintage numeric fitment and is offered in bias-ply form with blackwall, narrow whitewall, and wide whitewall styling, depending on the tire series and brand selected.

That makes 560-15 the size to consider when preserving a more traditional tire appearance and construction type. Anyone comparing it to a radial alternative should remember that the radial discussion starts with equivalent sizes rather than treating 560-15 itself as a radial. Wheel width, tire profile, and the car’s present setup should all be reviewed before changing construction.

The radial equivalents for 560-15 are 155R15 and 560R15. The 155R15 option is an 80-series metric radial equivalent, while 560R15 is the bias-look radial equivalent for owners who want radial construction with a more traditional visual presentation.

Those choices differ in sizing format and appearance, even though both serve as radial alternatives to the original bias-ply size. A recommended rim-width range of 4 to 5 inches is associated with these equivalents, and the final decision should include a check of the car’s wheel width, tire clearance, and overall dimensions rather than assuming either size is automatically interchangeable.

Start with the wheel itself. The 1957 MG MGA keeps a 15-inch rim, but a radial conversion from 560-15 should still be checked against actual wheel width, since the radial equivalents and primary 155R15 options are intended for specific rim-width ranges.

The next step is confirming how the car sits and drives in its current condition. Steering clearance, fender clearance, suspension condition, and any prior wheel changes all matter before moving from bias-ply construction to a radial setup. That review helps keep the decision centered on the car’s real configuration rather than on the tire size alone.

A 560-15 choice for a 1957 MG MGA starts with deciding how traditional the car should look and feel. This size is offered as a bias-ply tire in blackwall, narrow whitewall, and wide whitewall form, and the available series vary from classic bias-ply lines to a front-runner style tire.

Beyond appearance, compare the wheel-width specification for the exact tire and make sure it suits the wheels actually on the car. It also helps to think about the MGA’s intended use. A restoration-oriented car may lean one direction, while a car being sorted for regular road miles may lead the owner to compare the 560-15 fitment against radial alternatives more carefully.

The sidewall style depends on which tire size and construction path you choose. In 155R15 radial form, the available options are blackwall. In 560-15 bias-ply form, the selections include blackwall, narrow whitewall, and wide whitewall, giving the MGA a broader appearance range in the traditional size.

That difference makes sidewall choice part of the larger tire-selection strategy rather than a minor cosmetic detail. A blackwall radial keeps the look simple and restrained, while bias-ply whitewalls create a stronger vintage presentation. The best match depends on how the car is restored, how authentic-looking the owner wants it to appear, and which construction best suits the car’s use.

The 1957 MG MGA has brand choice across both fitment paths. In 155R15 radial form, available brands include Firestone, Michelin, Avon, and Vredestein. In 560-15 bias-ply form, choices include Firestone, US Royal, Coker Classic, and Pro-Trac.

Brand should be compared alongside construction, sidewall style, and tire series rather than on name alone. Some owners will be focused on a traditional bias-ply look with whitewall options, while others will be sorting through blackwall radial lines such as Michelin X, XAS, XAS-FF, Firestone F560 Radial, or Vredestein classics. Matching the brand to the intended character of the car is usually more useful than chasing a label.

For a period-style 1957 MG MGA, the 560-15 bias-ply size is the most traditional starting point. It uses the vintage numeric format and is available in blackwall, narrow whitewall, and wide whitewall versions, which gives a restoration-minded owner more control over the car’s final visual presentation.

That does not mean every 560-15 tire automatically matches a specific original delivery appearance. Owners aiming for close historical accuracy should compare the tire choice with marque-specific references, photos, and restoration records for their car. If the goal is simply a vintage look rather than exact historical duplication, the available bias-ply sidewall options make that easier to tailor.

Tire construction changes more than ride character on a restored 1957 MG MGA; it also changes the visual language of the car. A 560-15 bias-ply tire gives the MGA a more traditional vintage presentation, while a 155R15 radial introduces a later-style tire format even though it still suits the car’s 15-inch wheel diameter.

The appearance difference becomes even more noticeable when sidewall style enters the decision. Bias-ply choices include blackwall and whitewall treatments, while the radial offerings are blackwall. A bias-look radial equivalent can also be considered when the owner wants to preserve more of the old-school visual effect without staying strictly with bias-ply construction.

Yes. Even though the 1957 MG MGA uses 15-inch tire fitments, modifications can still change what works safely and cleanly on the car. Aftermarket wheels, different wheel widths, suspension changes, ride-height adjustments, or bodywork repairs can all influence how a 560-15 or 155R15 tire sits and clears.

That is especially important when the car has been updated over time and no longer matches a stock-style wheel setup. Check wheel width, inner and outer clearance, steering travel, and suspension condition before settling on a tire. A size that suits one MGA may need closer review on another if the chassis or wheel package has been altered.

Before putting a 1957 MG MGA back on the road with new tires, inspect the wheels, valve stems, and general mounting condition, then confirm that tire pressures are set appropriately for the tires in use. It also helps to look over suspension and steering components so the new tires are not being asked to compensate for worn hardware.

A short, careful road test is a smart follow-up. Pay attention to clearance at full steering lock, any unusual rubbing, vibration, or pull, and whether the car tracks consistently. On a collector sports car, that early inspection period can reveal wheel or alignment issues quickly, before they lead to uneven wear or spoil the benefit of the new tires.

Collector-car tires on a 1957 MG MGA should be inspected regularly even if the car is driven only occasionally. Check for cracking, bulges, cuts, uneven wear, and gradual air loss, and keep an eye on overall tire age because vintage cars often spend long periods parked between outings.

Storage conditions matter almost as much as miles driven. Keeping the MGA away from prolonged sunlight, excess heat, moisture, and ozone sources helps protect both bias-ply and radial tires. Regular pressure checks and periodic visual inspections before each drive are simple habits that can prevent problems from developing unnoticed on a lightly used collector car.