The 1957 Metropolitan 1500 belongs to a distinctive chapter of postwar small-car design, blending compact city-car proportions with styling cues that still make it stand out at shows and cruise-ins. Owners often approach this car with equal interest in charm, authenticity, and easy drivability. Tire fitment centers on two 13-inch bias-ply sizes, 520-13 and 560-13, so the first step is confirming which one suits the car’s current wheel and setup. Available choices include blackwall, narrow whitewall, and wide whitewall treatments, along with modern radial equivalents in matching formats. The right decision depends on the look you want, the construction you prefer, and careful wheel-fitment verification.
Which Tire Size Is Right for The 1957 Metropolitan 1500
The 1957 Metropolitan 1500 uses two primary tire sizes, and both are bias-ply fitments on 13-inch rims. Because the Base sub-model is associated with both 520-13 and 560-13, the key step is confirming the car’s actual wheel and tire setup before choosing between them. Once size is settled, the decision shifts to sidewall appearance, brand and series differences, and whether a radial equivalent is worth considering.
A 520-13 is a vintage numeric bias-ply size in which the 520 designates an approximate 5.20-inch nominal section width and the 13 identifies the wheel diameter. On a 1957 Metropolitan 1500, this size keeps the original-style bias-ply construction that many restoration-minded owners want for stance and presentation. Product choices include Firestone and Premium Sport offerings, with blackwall, narrow whitewall, and wide whitewall sidewall treatments represented across different series. This size is worth evaluating when preserving a traditional small-car look matters as much as confirming wheel width and overall fitment.
A 560-13 is also a vintage numeric bias-ply size, with 560 indicating an approximate 5.60-inch nominal section width and 13 matching the wheel diameter. For the 1957 Metropolitan 1500, it remains a period-style bias-ply fitment but gives the buyer a different sizing path from 520-13 within the same 13-inch rim family. Available examples include BFGoodrich and Firestone products, with narrow whitewall and wide whitewall presentations in classic bias-ply series. This size deserves a careful look when the car already wears that fitment or when wheel width and visual proportion point in that direction.
Sub-model fitment is straightforward here because the covered 1957 Metropolitan 1500 Base is associated with both primary tire sizes. That makes it especially important to check the car’s present wheel and tire setup rather than assuming every example still carries the same size it once used.
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1957 Metropolitan 1500 Base
The 1957 Metropolitan 1500 Base is associated with both 520-13 and 560-13 bias-ply tires on 13-inch rims. Tire selection therefore comes down to confirming the actual wheel setup on the car and then choosing the sidewall style, tire series, or radial-equivalent path that best matches its use and appearance goals.
Bias-Ply to Radial Tire Conversion for the 1957 Metropolitan 1500
Both primary sizes on the 1957 Metropolitan 1500 have three radial-equivalent options. For 520-13 and 560-13, the equivalents are 155R13 as an 80-series metric radial, P155/75R13 as a 75-series P-metric radial, and P155/70R13 as a 70-series P-metric radial. These options differ mainly by sizing convention and profile family rather than serving as automatic substitutes. A 4-5 inch recommended rim-width range applies, so wheel width, overall dimensions, and clearance should be checked before conversion.
Modern Radial Equivalents
155R13
Equivalent 80-series Metric Radial (520-13)
P155/75R13
Equivalent P-metric 75-series Radial (520-13)
P155/70R13
Equivalent P-metric 70-series Radial (520-13)
155R13
Equivalent 80-series Metric Radial (560-13)
P155/75R13
Equivalent P-metric 75-series Radial (560-13)
P155/70R13
Equivalent P-metric 70-series Radial (560-13)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-5 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1957 Metropolitan 1500 Tires for Sale
Available 1957 Metropolitan 1500 tire choices span 520-13 and 560-13 bias-ply fitments from Firestone, Premium Sport, and BFGoodrich. The product grid is where to compare classic bias-ply series, blackwall versus whitewall presentation, and rim-width details that may influence which size makes the most sense on your car.
Common questions for the 1957 Metropolitan 1500 usually center on choosing between 520-13 and 560-13, understanding bias-ply versus radial-equivalent options, and deciding which sidewall style and construction best suit restoration or road use.
Tire Size & Fitment
What tire size fits a 1957 Metropolitan 1500?
The 1957 Metropolitan 1500 is associated with two primary tire sizes: 520-13 and 560-13. Both are bias-ply sizes designed for 13-inch rims, and the 1957 Metropolitan 1500 Base is associated with both of them rather than a single exclusive size.
That means the real task is confirming which size is already on the car or which wheel setup the car now carries. Many collector cars have seen wheel changes over time, so checking the mounted wheel width, existing tire size, and available clearance is more useful than selecting by year and model alone.
What size rim does a 1957 Metropolitan 1500 use?
The primary tire sizes for the 1957 Metropolitan 1500 use a 13-inch rim diameter. Both 520-13 and 560-13 are built around that same wheel diameter, so the rim diameter itself stays consistent even though the two tire sizes differ in width designation.
Rim diameter is only part of the fitment picture, especially on a small vintage car. Wheel width should also be checked before choosing between available tires, since product specifications vary by size and series. That extra step helps avoid selecting a tire that matches the diameter but is less suitable for the wheel you have.
What does 520-13 mean on a 1957 Metropolitan 1500?
On a 1957 Metropolitan 1500, 520-13 is a numeric bias-ply tire size. The 520 indicates an approximate 5.20-inch nominal section width, while the 13 refers to the wheel diameter in inches. It is an older sizing format commonly seen on compact cars of this period.
Understanding that format helps when comparing period-style tires with modern radial equivalents, because the old number does not work like a modern metric size. It also explains why appearance choices such as blackwall, narrow whitewall, and wide whitewall can exist within the same basic fitment without changing the underlying wheel diameter.
Bias-Ply & Radial Options
Is 520-13 a bias-ply or radial tire for the 1957 Metropolitan 1500?
For the 1957 Metropolitan 1500, 520-13 is a primary bias-ply tire size. It appears in period-style bias-ply products, including options with blackwall, narrow whitewall, and wide whitewall presentations, depending on the series and brand chosen.
That matters because a buyer deciding on 520-13 is not just choosing a size, but also deciding whether to retain the original-style construction or compare it with radial equivalents. Construction choice can affect appearance, wheel compatibility considerations, and how closely the finished car reflects a traditional vintage tire presentation.
What radial tire sizes are equivalent to 520-13?
Radial equivalents for 520-13 include 155R13, P155/75R13, and P155/70R13. Those cover an 80-series metric radial format, a 75-series P-metric radial format, and a 70-series P-metric radial format, giving several ways to compare a modern radial-size alternative to the original bias-ply size.
A 4-5 inch recommended rim-width range is associated with those equivalents, so the wheel should be measured before making the switch. Overall dimensions and clearance still need to be checked on the car itself, since an equivalent size is a comparison point, not a guarantee of automatic interchangeability.
What should I check before converting my 1957 Metropolitan 1500 from bias-ply to radial tires?
Start by confirming the car’s current primary size, whether that is 520-13 or 560-13, and then match it to the appropriate radial equivalent options: 155R13, P155/75R13, or P155/70R13. The 13-inch wheel diameter remains consistent, and the recommended rim-width range for these equivalents is 4-5 inches.
The next step is checking the actual wheel width, plus tire-to-fender and steering clearance on the car. A modified suspension, replacement wheels, or bodywork changes can affect the result, so conversion should be evaluated as a full setup decision rather than simply a change in tire construction.
Choosing the Right Tire
What should I consider when choosing a 520-13 tire for a 1957 Metropolitan 1500?
Choosing a 520-13 tire for a 1957 Metropolitan 1500 starts with confirming that 520-13 is the size you want rather than 560-13. From there, the main considerations are bias-ply construction, sidewall style, brand, tire series, and whether the tire’s rim-width specification matches the wheel currently on the car.
Firestone and Premium Sport options in this size give different visual directions, from blackwall to narrow whitewall and wide whitewall presentations. That makes 520-13 a styling decision as much as a fitment one, especially for a car where overall look, restoration character, and wheel compatibility all matter.
What sidewall styles are available for 1957 Metropolitan 1500 tires?
The 1957 Metropolitan 1500 has sidewall variety across its applicable bias-ply tires. Available styles include blackwall, narrow whitewall, and wide whitewall, depending on whether you are looking at 520-13 or 560-13 and which brand or series you prefer.
That range gives the car very different visual personalities without changing its basic vintage character. A blackwall usually leans more understated, while narrow and wide whitewalls create a more decorative period-style presentation. The best choice depends on the car’s finish, restoration direction, and the tire size you have confirmed for the wheels.
What brands offer tires for the 1957 Metropolitan 1500?
Tires for the 1957 Metropolitan 1500 are available from Firestone, Premium Sport, and BFGoodrich across the applicable 520-13 and 560-13 bias-ply sizes. Those brands appear in classic bias-ply and lowrider-oriented series, with variation in sidewall styling and some rim-width specifications.
Brand choice should come after the correct size is settled, since not every brand appears in both size families the same way. Once the size is confirmed, compare the brand options by sidewall appearance, tire series character, and wheel compatibility details rather than assuming the name alone determines the right fit for the car.
Restoration & Appearance
Which tire should I choose for a period-style 1957 Metropolitan 1500?
A period-style 1957 Metropolitan 1500 usually starts with one of its primary bias-ply sizes, 520-13 or 560-13, because those sizes preserve the vintage tire format and overall character of the car. The final choice depends on which size matches the car’s wheel setup and how traditional you want the finished presentation to appear.
Once size is confirmed, sidewall treatment becomes the main appearance decision. Blackwall, narrow whitewall, and wide whitewall options all create a different visual effect, and each can suit a restored Metropolitan in the right context. When exact originality matters, marque-specific references and vehicle history should guide the final appearance choice.
How does tire construction affect the appearance of a restored 1957 Metropolitan 1500?
On a restored 1957 Metropolitan 1500, tire construction influences more than road feel. A bias-ply tire keeps the car in its original-era sizing language and generally supports the traditional small-car look most buyers expect when viewing a Metropolitan with period-style wheels and trim.
A radial equivalent can still be considered, but it changes the presentation from a strict vintage construction approach to a more modern alternative in a compatible format. That does not make it wrong for the car, but it does make appearance, stance, and wheel fitment worth reviewing before the restoration direction is finalized.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1957 Metropolitan 1500?
Yes. Modifications can affect tire fitment on a 1957 Metropolitan 1500 even when the tire size itself is one of the correct primary options. Wheel-width changes, aftermarket wheels, altered ride height, replacement suspension parts, or bodywork differences can all influence how 520-13, 560-13, or a radial equivalent sits on the car.
That is why modified cars should be checked physically rather than judged by catalog fitment alone. Steering clearance, fender clearance, and the actual wheel dimensions deserve attention before ordering tires. A small vintage car has less margin for mismatch, so even modest changes can alter what works comfortably.
What should I inspect before driving a 1957 Metropolitan 1500 on new tires?
Before driving a 1957 Metropolitan 1500 on new tires, inspect the wheels for correct diameter and condition, confirm the tires are properly seated, and verify that inflation is appropriate for the tire being used. A short visual check for rubbing at full steering lock is also worthwhile before heading out on the road.
Collector cars benefit from a broader once-over as well. Look at suspension wear, wheel fastener condition, and any signs that the car has uneven stance or clearance issues. After the first few miles, recheck tire pressure and inspect the sidewalls and tread area again so early fitment problems are caught quickly.
How should 520-13 and 560-13 tires on a collector 1957 Metropolitan 1500 be maintained?
Tires on a collector 1957 Metropolitan 1500 should be maintained with regular pressure checks, periodic visual inspection, and attention to age-related condition even if the car is driven only occasionally. Whether the car wears 520-13 or 560-13 tires, sidewall cracking, bulges, cuts, uneven wear, and slow air loss all deserve prompt attention.
Storage habits matter just as much on a low-use vintage car. Keeping the Metropolitan away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve tire condition over time. An inspection before each driving season, and before any longer outing, is a smart routine even when tread depth still looks acceptable.