Studebaker Silver Hawk Tires

Studebaker Silver Hawk uses two listed tire sizes across its 1959 to 1961 production run: 6.50-15 and 670-15. The 6.50-15 size appears for 1959 only, while 670-15 is listed for 1959, 1960, and 1961. Both are 15-inch applications and both fall into the traditional numeric bias-ply sizing system used on many American cars of the period.

That means a 1960 or 1961 Studebaker Silver Hawk points directly to 670-15, while a 1959 Studebaker Silver Hawk needs a closer check before you settle on a tire. Use the year listing as the starting point, then confirm the wheel and any original paperwork so the car gets the correct size, stance, and period look.

A 670-15 tire on a Studebaker Silver Hawk is a numeric bias-ply size. The 670 portion is the nominal section width with the decimal omitted, and the 15 indicates a 15-inch rim diameter. Available 670-15 products for Studebaker Silver Hawk are bias-ply tires built for 15-inch wheels, with many listings centered around rim widths in the 4.50- to 5.00-inch range.

Modern buyers sometimes expect a size code to behave like a later metric radial size, but that is not what this format does. On a Studebaker Silver Hawk, the key is to match the 15-inch wheel and stay within the proper numeric bias-ply range for the year and wheel setup rather than trying to compare it directly to a modern passenger-car tire size.

A 1959 Studebaker Silver Hawk has two listed tire sizes because both 6.50-15 and 670-15 appear for that year. The split is not a wheel-diameter change, since both are 15-inch applications, and there is no construction split because the available products in this family are bias-ply. That leaves 1959 as a same-diameter fitment split where the specific configuration matters more than the model year alone.

If you are working with a 1959 Studebaker Silver Hawk, treat the year as only the first filter. Compare the tires currently on the car, check the wheel, and verify against original paperwork or marque knowledge so you choose the size that matches that individual car rather than assuming every 1959 Studebaker Silver Hawk used the same section width.

Studebaker Silver Hawk tire listings here are numeric bias-ply sizes, and the available products are bias-ply constructions. For these period-style fitments, a tube is required. That applies to both listed sizes, 6.50-15 and 670-15, because they are presented as traditional bias-ply collector-car tires rather than modern tubeless radials.

Tube use matters because it affects both installation and long-term reliability on a collector car. When fitting tires to a Studebaker Silver Hawk, make sure the wheel condition is suitable for tube-type service and that the tube and flap, where applicable, match the tire and rim combination being used.

A 1959 Studebaker Silver Hawk is the only year in this range with two listed sizes, 6.50-15 and 670-15. Both are 15-inch numeric bias-ply fitments, so the choice is not driven by wheel diameter alone. The right answer comes from identifying the exact configuration of the car and checking what wheel and size specification it actually carries.

Start with the wheel diameter, then inspect any surviving original markings, owner literature, build information, or restoration records tied to that specific Studebaker Silver Hawk. If the car has been restored or modified over the years, verify what is physically on the vehicle now so the replacement tire matches the intended look and the wheel it will be mounted on.

Studebaker Silver Hawk tires in 670-15 are available in several sidewall styles, including blackwall, narrow whitewall, and wide whitewall. The product range includes multiple whitewall widths, from slim 1-inch styles to broader period-style whitewalls. That gives restorers and drivers some room to match the visual character they want without leaving the correct basic size family.

Sidewall choice can noticeably change the appearance of a Studebaker Silver Hawk, especially on a late-1950s American coupe where whitewall presentation is part of the car’s visual identity. If authenticity matters, compare the sidewall width against period photos, factory literature, or marque-club guidance so the tire complements the way your car would have appeared in its era.

Studebaker Silver Hawk tires in the listed product range come from Firestone, US Royal, Coker Classic, Universal Vintage Tire, BFGoodrich, Excelsior, Avon, Goodyear, and STA. Most of the available options center on 670-15 and are offered as bias-ply collector-car tires with blackwall, narrow whitewall, or wide whitewall styling. The series represented include several classic bias-ply lines as well as period-style Goodyear and Avon offerings.

Brand choice on a Studebaker Silver Hawk usually comes down to the combination of appearance, sidewall treatment, and the particular period character you want the car to present. Many restorers choose a brand family that suits the car’s era and trim, then narrow further by sidewall width and series styling rather than looking at the name on the sidewall alone.

Studebaker Silver Hawk tires in 670-15 appear in several series, including Firestone Classic Bias Ply, US Royal Classic Bias Ply, Coker Classic Bias Ply, Universal Classic Bias Ply, Silvertown Classic Bias Ply, Excelsior Bias Ply, Turbospeed Mk4, Super Cushion, Custom Super Cushion, Super Cushion Deluxe, and Super Transport. Most are period-style passenger-car bias-ply lines, while Super Transport reflects a military and truck-oriented family. The visible differences are mainly brand identity, sidewall styling, and the series theme rather than a switch to radial construction.

For a Studebaker Silver Hawk, the practical choice is to decide first whether the car should present as a standard passenger-car restoration or a more specialized application, then compare sidewall appearance and load characteristics within that group. Series names can help point you toward the right visual era, but the size, 15-inch rim fitment, and intended use should remain the deciding factors.

A Studebaker Silver Hawk should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, and prolonged contact with petroleum products. Clean tires last better when dirt and residue are removed before storage, and inflation should be kept appropriate for the tire and the car’s load. If the car sits for long periods, moving it occasionally can help reduce flat-spotting on bias-ply tires.

Collector cars benefit from routine storage habits more than from any one product treatment. If a Studebaker Silver Hawk will be parked for months at a time, consider supporting the car in a way that reduces constant load on one contact patch, and check inflation before and after storage rather than assuming the tires will be unchanged.

Tires on a Studebaker Silver Hawk should be inspected before regular driving and at closer intervals than a modern daily driver, especially because bias-ply collector tires often see long periods of inactivity. Look for sidewall cracking, tread separation signs, uneven wear, impact damage, and loss of inflation. Wheel condition and tube-related issues also deserve attention because they affect how these tires perform.

A quick walk-around is not enough for a collector car that may sit for weeks between outings. Make inspection part of your pre-drive routine on a Studebaker Silver Hawk, and include the spare if it is expected to be roadworthy, since aging can affect a rarely used spare just as much as the tires carrying the car.

Tires on a Studebaker Silver Hawk should be replaced when age, cracking, hardening, deformation, or other condition issues appear, even if the tread still looks deep. Collector tires often age out long before they wear out because the car is used lightly and stored for extended periods. Tread depth alone is a poor guide for an older bias-ply tire on a hobby vehicle.

Replacement decisions should be driven by condition, age, and intended road use, not just appearance from a few feet away. If a Studebaker Silver Hawk is preparing for touring rather than occasional local use, have the tires evaluated with that higher demand in mind so you are not relying on old rubber simply because the tread still looks presentable.

Studebaker Silver Hawk is shown here with two original-style size families across its production years: 6.50-15 for 1959 and 670-15 for 1959 through 1961. The available product range is built around bias-ply construction and includes several classic series from multiple brands. That points restorers toward a period-correct bias-ply presentation rather than a modern radial interpretation for an authenticity-focused car.

The exact original tire choice for a specific Studebaker Silver Hawk should be checked against factory literature, surviving car evidence, and Studebaker marque references, especially for 1959 where two sizes are listed. A serious restoration benefits from matching not only the section size, but also the sidewall treatment and overall visual character expected for the car’s trim and delivery era.

Correct tire fitment can absolutely affect how a Studebaker Silver Hawk is viewed in restoration judging and by knowledgeable collectors. Size, profile, construction type, and sidewall style all change the car’s stance and period appearance. A Studebaker Silver Hawk wearing the right type of bias-ply tire usually looks more historically coherent than one fitted with a visibly modern alternative.

For a judged or investment-minded Studebaker Silver Hawk, tire choice should be treated as part of the restoration rather than an afterthought. Marque clubs, period photography, and factory reference material are the best way to decide whether the car should wear blackwalls, narrow whitewalls, or wider whitewalls and which of the listed sizes is appropriate for that exact year and configuration.

Studebaker Silver Hawk tires in the available range include blackwall, narrow whitewall, and wide whitewall styles. Any of those can be visually appropriate depending on the way the specific car was originally equipped or how it is being restored within the customs of the period. The broad variety is helpful because late-1950s and early-1960s American cars often relied heavily on sidewall treatment to define their finished look.

A restoration-grade Studebaker Silver Hawk should have its sidewall style chosen with the same care as paint, trim, and wheel covers. If authenticity matters most, compare the whitewall width and overall presentation against period sales material and club knowledge so the tire contributes to the right stance and era-correct visual balance.

A properly fitted, properly maintained tire in the correct size can be suitable for public-road use on a Studebaker Silver Hawk, provided the rest of the car is equally roadworthy. The listed options are bias-ply collector-car tires, so they should be evaluated in the context of the car’s suspension, steering, brakes, wheel condition, and intended driving speed. Safety comes from the whole setup, not the tire alone.

A Studebaker Silver Hawk that sees occasional fair-weather driving can often be used confidently when the tires are fresh, correctly installed, and matched to the wheel. Before road use, inspect inflation, visible condition, and age, and remember that a vintage bias-ply car should be driven with more mechanical sympathy and more stopping distance than a modern car.

Before driving a Studebaker Silver Hawk, check tire inflation, visible sidewall and tread condition, wheel security, and any signs of tube or valve-stem problems. Because the listed tires are bias-ply types, also pay attention to flat spotting after storage and any vibration or pull that may indicate a tire or wheel issue. A pre-drive check should include the spare if it is intended for emergency use.

That quick inspection matters more on a collector car than on a regularly used modern vehicle because long storage can change the tire’s behavior even when mileage is low. If a Studebaker Silver Hawk has been sitting, take the first miles gently and reassess how the car feels before settling into normal road speed.

A Studebaker Silver Hawk on original-style bias-ply tires should be driven at moderate speeds appropriate to a vintage car rather than treated like a modern highway coupe. Even with correct size and load capacity, the driving character of a bias-ply tire is different in tracking, cornering feel, and braking response. Road speed should always reflect the condition of the tires, wheels, suspension, and brakes as a complete system.

The smart approach is to let a Studebaker Silver Hawk settle into the speed range where it feels composed and predictable, especially after fresh installation or long storage. If the car wanders, vibrates, or feels unsettled, reduce speed and inspect the entire chassis and tire setup before assuming the issue is normal vintage behavior.