1958 MG MG Tires

The 1958 MG MG uses two primary tire sizes: 560-15 in bias-ply construction and 155R15 in radial construction. Both sizes are associated with the TD & TF application and both use a 15-inch rim diameter, so the basic fitment path is centered on construction type rather than a change in wheel diameter.

That means the next step is deciding how the car will be used and presented. A 560-15 keeps the vintage numeric bias-ply format, while 155R15 moves to a classic Euro-metric radial format. Before selecting either one, confirm the actual wheel width on the car and make sure any older replacement wheels still match the intended tire's rim-width requirements.

The tire sizes used on the 1958 MG MG share a 15-inch rim diameter. That is true for both the 560-15 bias-ply fitment and the 155R15 radial fitment, so wheel diameter stays consistent even though the sizing systems and constructions differ.

Diameter is only part of the fitment picture on a vintage sports car. Wheel width should also be checked, especially if the car has replacement steel wheels, aftermarket wire wheels, or a long-ago restoration with non-original components. Confirming both diameter and width helps avoid choosing a tire that matches the rim size but not the wheel's usable width range.

Yes. The 1958 MG MG TD & TF application uses the same two primary tire-size paths: 560-15 as a bias-ply fitment and 155R15 as a radial fitment. The shared 15-inch rim diameter keeps the decision focused on construction and tire style rather than on separate sub-model-specific wheel diameters.

That simplifies shopping, but it does not make every tire choice identical. Owners still need to decide whether the goal is a period-style bias-ply presentation or a radial setup in the 155R15 format. It is also wise to inspect the actual wheels on the car, since many MGs have seen wheel changes over the years.

On the 1958 MG MG, 560-15 is a bias-ply tire size. It uses the vintage numeric sizing system, with 5.60 indicating the nominal section-width class and 15 identifying the rim diameter. That keeps it distinct from the radial 155R15 fitment, even though both sizes mount on 15-inch wheels.

Choosing 560-15 usually comes down to preserving a traditional tire profile and a more period-style presentation. Since bias-ply and radial tires differ in construction, the owner should also think about the car's intended use and confirm the wheel width before selecting a replacement. Appearance, road feel, and wheel compatibility all deserve attention on an older MG.

Two radial-equivalent sizes are available for 560-15: 155R15 and 560R15. The 155R15 option is the 80-series metric radial equivalent, while 560R15 is the bias-look radial equivalent. Those two choices give the 1958 MG MG owner a conventional classic radial format or a radial designed to retain a more traditional visual impression.

The recommended rim-width range for these equivalents is 4 to 5 inches, which makes wheel-width confirmation especially important before changing construction. Even when rim diameter is correct, clearance and overall setup still need to be checked. A radial equivalent is a useful alternative, but it should be evaluated against the car's wheels and surrounding space.

Either can be appropriate, because the 1958 MG MG is supported by both 560-15 bias-ply and 155R15 radial fitments. Bias-ply suits owners who want to stay with a vintage sizing format and a more traditional presentation, while radial choices appeal to those who want a classic radial construction on the same 15-inch rim diameter.

The better choice depends on the car's purpose. A restoration-oriented MG may call for the look of the 560-15 size, while a regularly driven car may lead the owner toward a radial alternative. Wheel width, tire clearance, and the condition of steering and suspension components should be reviewed before changing construction.

Start with the fact that 560-15 is the bias-ply fitment path for the 1958 MG MG. Within that size, the meaningful differences include sidewall treatment, brand, tire series, rim-width specification, and whether the tire is a traditional road tire or a more specialized option such as the Pro-Trac Front Runner.

A period-style street car may point toward blackwall, narrow whitewall, or wide whitewall choices from Firestone, US Royal, or Coker Classic. The actual wheel width should still be checked, since some 560-15 offerings call for 4.5-inch wheels while others cover a broader range. Matching the tire to the car's look and wheel setup matters more than picking by brand alone.

The 1958 MG MG has meaningful sidewall variety, especially in the 560-15 bias-ply size. Blackwall, narrow whitewall, and wide whitewall options are available there, while the 155R15 radial choices are blackwall tires. That gives the owner a clear visual decision between understated radial presentation and more traditional whitewall bias-ply styling.

Sidewall choice changes the car's appearance more than many buyers expect, especially on a compact British sports car with visible tire profile. A blackwall generally keeps the look restrained, while narrow or wide whitewalls create a stronger vintage accent. The best match depends on the car's restoration direction and the visual character the owner wants.

Brand selection for the 1958 MG MG includes Firestone, Michelin, Avon, Vredestein, US Royal, Coker Classic, and Pro-Trac. Those brands are spread across both fitment paths, with Firestone, Michelin, Avon, and Vredestein appearing in 155R15 radial choices, and Firestone, US Royal, Coker Classic, and Pro-Trac appearing in 560-15 bias-ply choices.

The useful comparison is not simply brand name, but how each brand's tire aligns with the intended result. Some choices emphasize traditional bias-ply appearance, some stay blackwall and radial, and some introduce whitewall styling. Looking at construction, sidewall treatment, tire series, and wheel-width compatibility gives a clearer answer than brand alone.

For a period-style 1958 MG MG, the 560-15 bias-ply size is usually the natural starting point because it preserves the vintage numeric format and supports traditional sidewall treatments. Blackwall, narrow whitewall, and wide whitewall versions are available, allowing the owner to shape the visual tone of the car without leaving the proper 15-inch rim diameter.

Appearance goals should be balanced against how the MG will actually be driven. A show-focused car may stay with bias-ply, while a road car may lead the owner to consider a radial alternative separately. When exact originality matters, marque literature, period photos, and trusted MG club guidance can help narrow the most appropriate presentation.

Tire construction changes the look of a restored 1958 MG MG because bias-ply and radial tires present the car differently even when they share the same 15-inch rim diameter. A 560-15 bias-ply keeps the vintage numeric sizing language and opens the door to whitewall or blackwall styling, while 155R15 radial choices remain blackwall and more contemporary in format.

That difference matters on a small British sports car where tire profile and sidewall treatment are easy to notice. Owners building toward a traditional restoration often start with the bias-ply fitment, while those prioritizing road use may prefer the radial route. Either way, the visual result should be considered alongside wheel width and the car's overall stance.

Yes, modifications can affect tire fitment on a 1958 MG MG even when the tire size itself is correct. Replacement wheels, altered wheel width, suspension changes, ride-height adjustments, or body repairs can all change how a 560-15 or 155R15 tire sits in the wheelwell and how much space remains at steering lock.

That is why an older MG should be treated as the car in front of you, not just the catalog description. Check wheel diameter and width, inspect for rubbing marks, and look at clearance around the fenders, steering components, and suspension. Small sports cars leave less margin for change than many larger collector vehicles.

Before driving a 1958 MG MG on new tires, inspect the wheels for correct diameter and sound condition, confirm lug hardware is appropriate, and make sure the tires are seated and inflated properly. It is also worth checking for free steering movement, adequate clearance, and any obvious suspension or brake issues that could affect early road use.

The tires themselves deserve a close look after installation and again after the first short drive. Watch for uneven clearance, air loss, scuffing, or contact marks near the fenders and steering components. On a vintage MG, a careful shakedown drive and a second inspection often reveal small fitment issues before they become larger problems.

Collector-car tire maintenance starts with regular pressure checks, visual inspections, and keeping the 1958 MG MG out of prolonged sun, heat, and ozone exposure when stored. Both 560-15 bias-ply and 155R15 radial tires should be checked for cracking, cuts, bulges, unusual wear, and slow air loss, especially if the car is driven only occasionally.

Low annual mileage can hide tire aging, so tread depth alone is not enough. Rolling the car periodically, storing it on a clean dry surface, and inspecting the spare and mounted tires together helps catch problems early. A pre-drive walkaround is especially important before longer trips or the first outing after extended storage.