The 1957 Buick 50 Super belongs to an era when Buick balanced big-car presence with bright styling, V8 power, and a distinctly upscale road-going character. Cars from this period carry much of their visual identity in their stance, wheel openings, and sidewall presentation, which makes tire selection especially important. The 1957 Buick 50 Super uses a 760-15 bias-ply tire on a 15-inch rim, keeping the fitment firmly in traditional mid-century territory. Available choices include several wide whitewall treatments, a narrow whitewall option, and modern radial equivalents in related sizing. The real decision is whether to preserve original-style bias-ply character or evaluate a radial alternative while checking wheel and clearance compatibility.
Which Tire Size Is Right for The 1957 Buick 50 Super
The 1957 Buick 50 Super uses one primary tire size: 760-15. That is a bias-ply fitment on a 15-inch rim, and it carries across the covered 8-cylinder sub-model, so the main decision is not which primary size fits but which period-style tire presentation you want and whether a radial equivalent is worth considering for your particular wheel and driving setup.
A 760-15 is a vintage numeric bias-ply size in which the 760 indicates an approximate 7.60-inch nominal section width and the 15 identifies the wheel diameter in inches. For the 1957 Buick 50 Super, this is the traditional bias-ply fitment and it sets the visual tone of the car as much as the mechanical fitment. Tire choices in this size include BFGoodrich, Coker Classic, Universal Vintage Tire, and Goodyear, with sidewall treatments ranging from narrow whitewall to several wide whitewall styles. It is the right place to stay if the goal is a restoration-oriented look and the road manners of a period-style bias-ply tire.
Tire fitment is straightforward for the covered 1957 Buick 50 Super sub-models. The shared sizing means the main job is confirming the car still has the expected 15-inch wheel setup and then choosing the tire style, brand, and construction approach that best suits the vehicle.
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1957 Buick 50 Super 8 Cyl.
The 1957 Buick 50 Super 8 Cyl. uses the same 760-15 bias-ply fitment as the model core, so sizing does not shift from one covered configuration to another. That keeps the focus on selecting the right whitewall treatment, comparing available tire series, or considering a radial equivalent after checking wheel width and overall clearance.
Bias-Ply to Radial Tire Conversion for the 1957 Buick 50 Super
The original 760-15 tire size has four radial-equivalent options for the 1957 Buick 50 Super. They include 215R15 as an 80-series metric radial, P225/75R15 as a 75-series P-metric radial, P235/70R15 as a 70-series P-metric radial, and 760R15 as a bias-look radial equivalent. These choices differ by sizing convention, profile family, and visual character, especially the bias-look option. A 6- to 8-inch rim-width range is associated with these equivalents, and wheel width, overall dimensions, and body clearance should be checked before any conversion.
Modern Radial Equivalents
215R15
Equivalent 80-series Metric Radial (760-15)
P225/75R15
Equivalent P-metric 75-series Radial (760-15)
P235/70R15
Equivalent P-metric 70-series Radial (760-15)
760R15
Bias-look Radial Equivalent (760-15)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (6-8 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 Buick 50 Super Tires for Sale
Available 760-15 tires for the 1957 Buick 50 Super span BFGoodrich, Coker Classic, Universal Vintage Tire, and Goodyear. The main differences in the product grid are tire series, whitewall treatment, bias-ply construction details, and rim-width specifications where stated.
Common questions for the 1957 Buick 50 Super usually center on the 760-15 tire size, 15-inch rim fitment, whitewall choices, and whether to stay with bias-ply construction or consider one of the available radial equivalents.
Tire Size & Fitment
What tire size fits a 1957 Buick 50 Super?
The 1957 Buick 50 Super uses a 760-15 tire size. This is a numeric bias-ply fitment designed for a 15-inch wheel, and it is the primary size associated with the covered model and sub-model.
That makes the first step fairly simple: confirm the car still has the expected 15-inch wheels and then choose among the available 760-15 tire styles. If the Buick has been modified with different wheels or suspension changes over the years, measure the actual setup before ordering, especially if you are also considering a radial equivalent.
What size rim does a 1957 Buick 50 Super use?
The 1957 Buick 50 Super uses a 15-inch rim with its primary 760-15 tire size. Product fitments in this size are built around that 15-inch wheel diameter, which is the key rim measurement to confirm before selecting a tire.
Wheel diameter is only part of the picture, especially on an older full-size Buick. Rim width also matters when comparing specific tire options or when evaluating a radial equivalent, so it helps to inspect the wheel itself rather than relying on assumption, particularly if the car has changed hands or received replacement wheels long ago.
Does the 1957 Buick 50 Super 8 Cyl. use the same tire size?
Yes. The covered 1957 Buick 50 Super 8 Cyl. uses the same 760-15 bias-ply tire size as the model core, so there is no size split within the covered fitment here.
Because the size stays consistent, tire shopping becomes more about presentation and construction than about sorting through multiple fitments. The main variables are whitewall style, brand, tire series, and whether the car will remain on traditional bias-ply tires or move to a radial equivalent after the wheel and clearance setup is checked.
Bias-Ply & Radial Options
Is 760-15 a bias-ply or radial tire for the 1957 Buick 50 Super?
For the 1957 Buick 50 Super, 760-15 is the primary bias-ply tire size. The available tires in that original sizing format are traditional bias-ply products, which suit the period look and overall presentation of a mid-1950s Buick.
That matters because staying with bias-ply construction preserves the original-style size format and sidewall character. A radial alternative can still be considered through equivalent sizing, but construction changes should be treated as a setup decision rather than a simple name-for-name swap, especially on a large collector car with older wheels.
What radial tire sizes are equivalent to 760-15?
Radial equivalents for 760-15 include 215R15, P225/75R15, P235/70R15, and 760R15. Those cover an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial equivalent that keeps a more traditional visual style.
Each of those alternatives shares the same basic 15-inch wheel diameter, but they are not identical in format or profile family. The radial-equivalent range is associated with a 6- to 8-inch rim width, and any change should be checked against actual wheel width, clearance at full steering travel, and the car's current ride height and suspension condition.
What should I check before converting my 1957 Buick 50 Super from bias-ply to radial tires?
Start by confirming the actual wheel diameter and width on the car, then compare the radial equivalent you are considering with the Buick's available fender and steering clearance. The 760-15 fitment has several radial-equivalent paths, so the exact alternative matters as much as the decision to change construction.
A conversion also deserves a close look at suspension condition, alignment, and how the car is used. A well-preserved show car may favor traditional bias-ply appearance, while a road-driven car may lead you toward a radial alternative, but either way the final choice should respect wheel compatibility and the Buick's present-day mechanical setup.
Choosing the Right Tire
What should I consider when choosing a 760-15 tire for a 1957 Buick 50 Super?
Begin with the correct primary size, which is 760-15, and confirm that the Buick still has the expected 15-inch wheel setup. From there, the main considerations are whether you want to retain bias-ply construction, which whitewall style best suits the car, and whether the individual product's rim-width specification matches your wheels.
The available choices also differ by brand, tire series, weight, and in some cases maximum load capacity figures. A restoration-oriented car may lean toward the sidewall treatment that best matches its visual theme, while a regularly driven car may prompt a closer look at radial-equivalent options and wheel compatibility before making the final decision.
What sidewall styles are available for 1957 Buick 50 Super tires?
The 1957 Buick 50 Super has 760-15 tire options with both narrow whitewall and wide whitewall sidewall treatments. Wide whitewalls appear in several widths, while a narrower whitewall option gives a more restrained appearance within the same basic tire size.
That choice has a strong effect on the way a 1957 Buick sits visually, especially because sidewall treatment is such a visible part of the car's stance. Sidewall style does not change the primary fitment size, but it can change the personality of the finished car, so many buyers choose it with the restoration goal in mind first.
What brands offer tires for the 1957 Buick 50 Super?
Available 760-15 tires for the 1957 Buick 50 Super include options from BFGoodrich, Coker Classic, Universal Vintage Tire, and Goodyear. Those products appear across several period-style bias-ply series and whitewall treatments rather than as one single uniform offering.
Brand alone is only one part of the decision. It helps to compare sidewall style, tire series, stated rim-width compatibility where available, and whether the visual character of the tire suits the Buick's restoration direction, since a large 1950s car often shows its tire choice more dramatically than a later low-profile application.
Restoration & Appearance
Which tire should I choose for a period-style 1957 Buick 50 Super?
For a period-style 1957 Buick 50 Super, the natural starting point is the original-size 760-15 bias-ply tire. That keeps the vintage size format and preserves the traditional sidewall shape that suits a full-size Buick from the late 1950s.
From there, the visual decision usually comes down to whitewall treatment and tire series. A wide whitewall often complements the Buick's era especially well, but exact originality can vary by how an individual car was ordered, so buyers pursuing a highly exact restoration should compare the tire choice against marque references or period vehicle documentation.
How does tire construction affect the appearance of a restored 1957 Buick 50 Super?
Tire construction changes more than road feel on a restored 1957 Buick 50 Super; it also changes the car's visual impression. A bias-ply tire maintains the original-style size format and traditional profile character, while a radial equivalent can alter the way the sidewall and overall stance read on the car.
That does not make one construction universally right or wrong. A restoration focused on period presentation often stays with bias-ply sizing, while a driver-oriented build may consider a radial equivalent or a bias-look radial, always with attention to wheel width, body clearance, and the appearance the owner wants the Buick to project.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1957 Buick 50 Super?
Yes. Modifications such as aftermarket wheels, altered wheel width, suspension changes, ride-height changes, or brake conversions can all affect tire fitment on a 1957 Buick 50 Super, even when the intended tire size remains close to the original 760-15 range.
A collector car that has been changed over the years should be inspected as it sits today rather than treated as a stock reference car automatically. Check wheel diameter, actual rim width, steering clearance, and fender clearance before selecting either a bias-ply tire or one of the radial equivalents tied to the original size.
What should I inspect before driving a 1957 Buick 50 Super on new tires?
Inspect the wheels, valve stems, and lug hardware first, then verify tire pressure, bead seating, and clearance at both straight-ahead and turned positions. On a 1957 Buick 50 Super, it also helps to look over suspension and steering components so the new tires are not being asked to work around worn mechanical parts.
A short initial road test is useful before any longer drive. Listen for rubbing, feel for pull or vibration, and recheck pressure after the first outing, especially on a car that spends long periods parked, because storage-aged components and old alignment issues often reveal themselves only after the vehicle returns to regular road use.
How should 760-15 tires on a collector 1957 Buick 50 Super be maintained?
760-15 tires on a collector 1957 Buick 50 Super should be kept properly inflated, inspected regularly for cracking, bulges, cuts, and uneven wear, and protected from long-term exposure to sunlight, moisture, and ozone sources during storage. Collector cars often age tires by time and environment as much as by mileage.
Regular visual checks matter even when the tread still looks good. A Buick that is driven only occasionally should have its tires checked before each outing and after longer storage periods, with special attention to air loss and sidewall condition, since a large, heavy 1950s car places real demands on old or neglected tires.