1956 MG Magnette Tires

The 1956 MG Magnette uses two primary tire sizes: 550-15 in bias-ply construction and 155R15 in radial construction. Both are 15-inch fitments, so the main difference is not wheel diameter but tire construction, section width, and the type of driving or restoration approach the owner wants to support.

That means the first decision is whether the car should stay with the traditional bias-ply format or use a radial-size setup. On a Magnette that has changed wheels over the years, wheel width is especially important to confirm before settling on either size, and clearance should still be checked if suspension, ride height, or bodywork has been altered.

The applicable tire sizes for the 1956 MG Magnette both fit a 15-inch rim. That includes the 550-15 bias-ply fitment and the 155R15 radial fitment, so the vehicle stays within the same basic rim diameter even when the construction choice changes.

Rim diameter is only one part of the fitment picture. A 15-inch wheel still needs the right width for the selected tire, and that becomes particularly important when comparing the narrow bias-ply option with the wider radial-style choices. Looking at the stamped wheel size or measuring the wheel directly is a sensible step before ordering tires for a long-stored or modified car.

Yes. The 1956 MG Magnette ZA follows the same fitment pattern, using either 550-15 bias-ply tires or 155R15 radial tires. That keeps tire selection relatively simple because the sub-model does not introduce a separate wheel diameter or a third size that would change the basic search.

The practical choice still depends on how the car is being finished and driven. A ZA being restored with a period-style look may stay with 550-15 bias-ply, while a road-driven car may be evaluated around 155R15 or a bias-look radial equivalent. Even with shared fitment, checking the actual wheels on the car remains worthwhile before changing construction.

550-15 is the bias-ply tire size used on the 1956 MG Magnette. It is the traditional numeric format, with 5.50 indicating the nominal width class and 15 indicating the rim diameter, and it represents the more original-era construction style for a mid-1950s British sedan like the Magnette.

That makes 550-15 the natural starting point for owners who want a period-style presentation and a traditional tire construction. A switch away from bias-ply should not be treated as automatic, because wheel width, tire dimensions, and steering or fender clearance still need to be checked whenever the car is being moved to a different sizing convention or construction type.

Two radial-equivalent sizes are available for 550-15 on the 1956 MG Magnette. The first is 155R15, which is an 80-series metric radial equivalent. The second is 560R15, which is a bias-look radial equivalent intended to retain a more traditional appearance while using radial construction.

These alternatives give the owner two different ways to move away from a pure bias-ply setup. The recommended rim-width range attached to those equivalents is 4 to 5 inches, so the car's actual wheels should be checked carefully. Overall dimensions and clearance at full steering lock also deserve attention before treating either radial option as a suitable alternative.

A radial conversion on a 1956 MG Magnette starts with wheel confirmation. The car stays on a 15-inch rim, but the wheel width needs to suit the chosen radial size, especially if the owner is moving from 550-15 bias-ply to 155R15 or considering the 560R15 bias-look radial equivalent.

Road clearance should be reviewed next, including fender room, suspension condition, and steering clearance through the full range of motion. It also helps to inspect the wheels themselves for age, damage, or previous repairs before mounting new tires. Cars that have been modified, stored for long periods, or fitted with replacement wheels deserve a more careful check before the construction change is finalized.

Start with the two correct fitment paths for the 1956 MG Magnette: 550-15 in bias-ply form or 155R15 in radial form. From there, the important factors are the car's actual wheel width, the kind of appearance the owner wants, and whether the car is being restored around a traditional presentation or prepared for regular road use.

Product selection then becomes more specific. A bias-ply choice keeps the older tire format, while the radial side includes several classic blackwall series from Firestone, Michelin, Avon, and Vredestein. Comparing rim-width compatibility, tire series character, and any stated load figures is more useful than focusing only on the fact that all of them share a 15-inch rim diameter.

The 1956 MG Magnette has tire options from Firestone, Michelin, Avon, Vredestein, and Excelsior. Firestone, Michelin, Avon, and Vredestein appear in the 155R15 radial fitment, while Excelsior covers the 550-15 bias-ply fitment, giving buyers a clear split between radial and traditional construction paths.

Brand choice should be treated as part of a larger fitment decision rather than the first step. The right comparison is whether the tire is bias-ply or radial, which size it belongs to, and how its rim-width requirements line up with the wheels on the car. After that, series differences and the visual style of the tire become more meaningful selection points.

The 1956 MG Magnette is covered by several distinct tire series. In 155R15 radial form, the available series include Firestone F560 Radial, Michelin X, Michelin XAS, Michelin XAS-FF, Avon CR6ZZ, Vredestein Snow Classic, and Vredestein Sprint Classic. In 550-15 bias-ply form, the available series is Excelsior Bias Ply.

Those series differences matter because they separate the buying decision into traditional bias-ply versus multiple classic radial approaches. Some owners will narrow the choice by construction first, while others will focus on how the tire looks on the car and whether the wheel width falls within the product's stated range. Comparing series within the correct size is the most useful next step.

A period-style 1956 MG Magnette usually starts with the 550-15 bias-ply fitment, because it preserves the traditional tire format associated with cars of this era. That makes the bias-ply route the most natural place to begin when the goal is a historically sympathetic stance and sidewall presentation rather than a modernized tire construction.

Some owners still want a more traditional look without staying fully bias-ply, and that is where a bias-look radial equivalent such as 560R15 can become worth evaluating. Exact originality questions should be checked against marque references, photographs, or restoration documentation for the specific car, since period-style appearance and exact factory delivery appearance are not always the same thing.

Tire construction changes more than road feel on a restored 1956 MG Magnette; it also changes the car's visual character. A 550-15 bias-ply keeps the older sizing language and traditional construction style, while a 155R15 radial introduces a later radial format even though both stay within the same 15-inch wheel diameter.

That visual difference matters on a car with upright 1950s proportions, where tire profile and sidewall presence are easy to notice. Every available product here uses a blackwall sidewall treatment, so the main appearance decision is construction and shape rather than whitewall or stripe detail. Owners aiming for a restoration-oriented presentation should decide how traditional they want the finished car to look.

Yes. Modifications can affect tire fitment on a 1956 MG Magnette even when the tire size itself is correct on paper. Aftermarket wheels, different wheel widths, suspension changes, lowered ride height, brake conversions, or bodywork repairs can all change the available space around a 550-15 or 155R15 tire.

That is why the actual car should be checked rather than relying only on model-year fitment. Measuring wheel width, confirming 15-inch diameter, and looking for interference at the inner fender, outer fender, and steering range are sensible precautions. A Magnette that has lived through decades of owner changes deserves a hands-on fitment check before construction or size style is changed.

Before driving a 1956 MG Magnette on new tires, inspect the wheels for cracks, bends, corrosion, or old repairs, and confirm that the wheel width matches the chosen tire. It also helps to check valve stems, wheel hardware, and the basic condition of suspension and steering components so the new tires are not being asked to work around underlying mechanical issues.

The tires themselves should be checked for proper inflation, even tread seating after installation, and adequate clearance at full steering lock. A short initial drive is a smart way to listen for rubbing or vibration before the car is taken farther from home. On a collector car that may sit often, a second pressure check after a few days is also worthwhile.

Collector-car tire maintenance on a 1956 MG Magnette starts with regular inspection rather than mileage alone. Both 550-15 bias-ply tires and 155R15 radials should be checked for cracking, bulges, cuts, irregular wear, and gradual air loss, especially on a car that spends long periods parked between drives.

Storage conditions matter almost as much as road use. Keeping the car away from prolonged heat, direct sunlight, standing moisture, and ozone sources helps protect the sidewalls over time. Pressure should be verified before each outing, and the car should be moved or driven periodically so the tires are not left carrying the same load in the same position for extended periods.