The 1959 Standard Eight comes from an era when compact, practical motoring and straightforward mechanical design mattered as much as styling. Cars of this period often sit in a restoration gray area between true originality, usable road manners, and the visual character that owners want to preserve. For this model, the tire decision centers on two 13-inch fitments: a 520-13 bias-ply option and a 145R13 radial option. That opens the door to different sidewall looks, including blackwall, narrow whitewall, and wide whitewall, along with a choice between traditional bias-ply presentation and radial road use. The right selection depends on whether appearance, driving feel, or conversion considerations come first.
Which Tire Size Is Right for The 1959 Standard Eight
The 1959 Standard Eight uses two tire sizes, both on 13-inch rims: 520-13 in bias-ply construction and 145R13 in radial construction. Because the same sub-model can be found with either fitment, the first step is confirming the tire type and wheel setup already on the car before choosing between a traditional bias-ply look or a radial alternative.
145R13 is a Euro-metric radial size in which 145 refers to nominal section width in millimeters, R indicates radial construction, and 13 is the rim diameter in inches. On the 1959 Standard Eight, this size suits buyers who want a radial-format tire while staying with the correct 13-inch wheel diameter. Available choices include Michelin and Firestone blackwall tires in radial series such as Michelin XAS-FF and Firestone F560 Radial. It is a useful size to evaluate when road-use drivability matters, but wheel width and overall vehicle clearance should still be confirmed on the car itself.
520-13 is a numeric bias-ply size, with the 520 designation representing an approximate 5.20-inch nominal section width and the 13 identifying the rim diameter. This is the traditional bias-ply fitment path for the 1959 Standard Eight and keeps the vehicle in a more period-style sizing convention. Product choices include blackwall, narrow whitewall, and wide whitewall versions from Firestone and Premium Sport, with series options such as Firestone Classic Bias Ply and Premium Sport Lowrider. It is the size to consider when visual presentation and a vintage tire profile are central to the car's character.
Sub-model fitment is straightforward here because the 1959 Standard Eight Base is associated with both available 13-inch tire sizes. The important step is not identifying a different trim level, but confirming whether the car is running the bias-ply 520-13 setup or the radial 145R13 setup.
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1959 Standard Eight Base
The 1959 Standard Eight Base can be fitted with either a 520-13 bias-ply tire or a 145R13 radial, both using a 13-inch rim. That makes tire selection more about construction choice, appearance, and wheel compatibility than about sorting through multiple trim-specific sizes.
Bias-Ply to Radial Tire Conversion for the 1959 Standard Eight
For the original 520-13 tire size, three radial-equivalent options are available. 155R13 is the 80-series metric radial equivalent, P155/75R13 is the P-metric 75-series radial equivalent, and P155/70R13 is the P-metric 70-series radial equivalent. These options differ mainly by sizing convention and profile family rather than serving as the same tire in a different label. A recommended rim-width range of 4 to 5 inches applies, and wheel width, overall dimensions, and clearance should be checked before making the change.
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)
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 1959 Standard Eight Tires for Sale
Available 1959 Standard Eight tire choices span both 145R13 radial and 520-13 bias-ply fitments, with Michelin, Firestone, and Premium Sport represented. Buyers can compare blackwall, narrow whitewall, and wide whitewall styles across radial and traditional bias-ply series.
Common questions for the 1959 Standard Eight usually come down to size confirmation, 13-inch rim fitment, choosing between 520-13 bias-ply and 145R13 radial tires, and deciding which sidewall style best suits the car's intended look and use.
Tire Size & Fitment
What tire size fits a 1959 Standard Eight?
The 1959 Standard Eight uses two recognized tire sizes: 520-13 in bias-ply construction and 145R13 in radial construction. Both sizes are associated with the model and both are built for 13-inch wheels, so the correct choice depends on the construction style and wheel setup the car is actually using.
A buyer should start by checking the tire size already mounted, then confirm the wheel diameter before ordering replacements. If the car has been converted over time, the present setup may matter more than assumptions about what should be on it, especially when switching between a traditional bias-ply look and a radial-format tire.
What size rim does a 1959 Standard Eight use?
The tire fitments associated with the 1959 Standard Eight both use a 13-inch rim diameter. That applies to the 520-13 bias-ply size and the 145R13 radial size, so rim diameter remains consistent even though the tire construction and sizing format can differ.
Diameter is only part of the fitment picture, so it is smart to verify wheel width as well, especially if the car has replacement or aftermarket wheels. A 13-inch wheel is necessary for these sizes, but the tire should still be matched to a wheel width that suits the specific product being considered.
Does the 1959 Standard Eight Base use the same tire size?
The 1959 Standard Eight Base is associated with both available sizes rather than having a separate trim-specific tire fitment. That means the Base can be found with either 520-13 bias-ply tires or 145R13 radial tires, both on 13-inch rims.
Because the sub-model does not narrow the choice to one size, the important step is inspecting the car itself. Checking the existing tires and wheels will clarify whether the goal is to maintain the present setup, return to a more period-style bias-ply presentation, or continue with a radial-format tire for road use.
Bias-Ply & Radial Options
Is 520-13 a bias-ply or radial tire for the 1959 Standard Eight?
520-13 is the bias-ply tire size associated with the 1959 Standard Eight. It uses a vintage numeric size format and represents the traditional construction style available for this car, distinct from the radial 145R13 fitment that is also used on the same 13-inch wheel diameter.
That distinction matters because a bias-ply tire affects both the look of the car and the type of replacement options available. Owners considering a change should confirm wheel width, compare dimensions carefully, and decide whether the priority is maintaining a period-style presentation or moving toward a radial alternative.
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 P-metric 75-series radial format, and a P-metric 70-series radial format, giving the 1959 Standard Eight several recognized alternatives to the original numeric bias-ply size.
The recommended rim-width range attached to those equivalents is 4 to 5 inches, which makes wheel verification especially important before a conversion. An equivalent size is a comparison point rather than an automatic substitute, so overall tire dimensions, suspension condition, and steering and fender clearance should all be checked on the vehicle.
What should I check before converting my 1959 Standard Eight from bias-ply to radial tires?
A conversion from 520-13 bias-ply tires to a radial alternative starts with the basics: confirm the wheel diameter, verify wheel width, and compare the radial size being considered. For the 1959 Standard Eight, recognized radial-equivalent options to 520-13 include 155R13, P155/75R13, and P155/70R13.
The next step is evaluating how the actual car is set up today. Steering clearance, fender clearance, suspension condition, and any prior wheel changes should be reviewed before making the switch, since a radial equivalent still needs to suit the vehicle's wheel and body dimensions rather than simply sharing the same rim diameter.
Choosing the Right Tire
What should I consider when choosing a tire for a 1959 Standard Eight?
Start with the actual fitment on the car: 520-13 bias-ply or 145R13 radial. That choice shapes nearly everything else, including the tire's visual character, the sizing system you are working with, and the kinds of products available for the 13-inch wheels on a 1959 Standard Eight.
Once the size and construction are settled, compare details that affect how the tire suits the car. Sidewall style, brand, tire series, rim-width compatibility, load figures where stated, and intended use all matter. A road-driven car may lead one direction, while a restoration-oriented car may call for a different visual approach.
What sidewall styles are available for 1959 Standard Eight tires?
The 1959 Standard Eight has sidewall options that include blackwall, narrow whitewall, and wide whitewall, depending on the tire size and product selected. Blackwall choices appear in both the radial 145R13 range and the bias-ply 520-13 range, while whitewall treatments are available in the 520-13 bias-ply selection.
That gives owners room to tune the car's appearance without changing the underlying wheel diameter. A blackwall usually creates a simpler presentation, while narrow and wide whitewalls shift the visual emphasis considerably, so the right choice depends on whether the car is being kept understated, restored in a period-style direction, or personalized.
What brands offer tires for the 1959 Standard Eight?
Tire options for the 1959 Standard Eight are available from Michelin, Firestone, and Premium Sport. Michelin appears in the 145R13 radial range, Firestone offers both 145R13 radial and 520-13 bias-ply choices, and Premium Sport appears in the 520-13 bias-ply range with whitewall-focused offerings.
Brand is only one part of the decision, so it helps to compare each product alongside size, construction, sidewall style, and tire series. That approach keeps the focus on matching the tire to the car's current wheel setup and intended appearance instead of choosing by name alone.
Restoration & Appearance
Which tire should I choose for a period-style 1959 Standard Eight?
For a period-style 1959 Standard Eight, the 520-13 bias-ply size is the natural starting point because it uses the vintage numeric format and traditional construction associated with the car. Within that size, buyers can choose among blackwall, narrow whitewall, and wide whitewall presentations to shape the finished look.
The best visual match depends on how the car is being restored and what appearance target matters most. When exact originality is important, marque-specific references and historical documentation are worth checking, since a tire can look appropriate to the era without necessarily matching every detail of a particular car's original delivery.
How does tire construction affect the appearance of a restored 1959 Standard Eight?
Tire construction changes more than the way the car drives; it also changes how the 1959 Standard Eight presents visually. A 520-13 bias-ply tire keeps the car in a traditional vintage size format, while a 145R13 radial introduces a more modern radial-style presentation even though it still uses a 13-inch rim.
Sidewall treatment adds another layer to that decision, especially with blackwall, narrow whitewall, and wide whitewall choices available. Owners restoring for show, casual local display, or regular road use often weigh appearance and practicality differently, so construction should be chosen as part of the car's overall finished character.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1959 Standard Eight?
Yes, modifications can affect tire fitment on a 1959 Standard Eight even when the intended tire size is correct on paper. Changes to wheels, wheel width, suspension height, steering components, or body clearance can all alter how a 520-13 bias-ply or 145R13 radial tire sits and moves on the car.
A modified car should be checked at full steering lock and through normal suspension travel before settling on a replacement tire. Clearance around the fenders and suspension matters just as much as the printed size, especially when the car no longer matches a stock wheel and stance configuration.
What should I inspect before driving a 1959 Standard Eight on new tires?
Before driving a 1959 Standard Eight on new tires, inspect the wheels, valve stems, and the overall condition of the suspension and steering system. Tire pressure should be set correctly for the tires being used, and the mounted tires should be checked for proper seating, visible interference, and adequate clearance.
A brief low-speed test drive is a good way to confirm there is no rubbing, pulling, or vibration before regular use. Collector cars often sit for long periods, so it is also wise to check wheel fastener torque, look for fluid leaks that could reach the tires, and recheck pressures after the first drive.
How should tires on a collector 1959 Standard Eight be maintained?
Tires on a collector 1959 Standard Eight should be maintained with regular pressure checks, periodic visual inspections, and careful storage habits. Whether the car runs 520-13 bias-ply tires or 145R13 radials, watch for cracking, cuts, bulges, uneven wear, and gradual air loss, especially if the car is only driven occasionally.
Long idle periods can be hard on vintage and collector tires, so the car should be stored away from prolonged sunlight, moisture, excess heat, and ozone-producing equipment. Rolling the car occasionally or changing its position during storage can also help reduce flat spotting and keep the tires in better road-ready condition.
