Studebaker Hawk Tires

Studebaker Hawk uses one listed tire size across the full 1962 through 1964 production span: 670-15. The available products for that fitment are built for 15-inch rims, with most listings centered on rim widths around 4.50 to 5.00 inches and some options extending slightly wider. All listed products for Studebaker Hawk in this size are bias-ply designs.

That makes Studebaker Hawk simpler than many collector cars of the period, but wheel verification still matters. A car that has been modified over the years may no longer wear its original wheel set, so check the actual rim diameter stamped on the wheel or verify it during dismount. Once the 15-inch wheel is confirmed, the main choice becomes sidewall appearance and how closely you want the finished car to reflect period presentation.

On a Studebaker Hawk, 670-15 is an older numeric bias-ply size designation. The 670 refers to the tire’s nominal section width in the traditional inch-based system, and the 15 indicates the wheel diameter in inches. It is not a modern metric size, and it should be read as a period tire code rather than translated loosely into a current passenger-car format.

That older sizing language is important because the right replacement should preserve both the physical proportions and the visual character of the car. If you are comparing several 670-15 options, focus on construction type, approved rim width, load rating where listed, and sidewall style rather than trying to substitute a modern-looking size by appearance alone. Studebaker Hawk tends to look most correct when the tire retains its proper vintage profile.

The listed Studebaker Hawk fitment is a 670-15 bias-ply tire, and for this type of vintage replacement a tube is required. That guidance applies across the available products in this size because the offerings are bias-ply constructions intended for collector-vehicle use rather than modern tubeless radial fitments.

Tube choice should match both the tire size and the wheel condition. On a collector car, the tire, tube, flap if needed, and wheel surface all work together, so rusty bead seats, burrs, or damaged valve holes should be corrected before installation. Studebaker Hawk owners who are returning a car to road use after long storage should treat fresh tubes as part of a proper tire installation rather than trying to reuse aged service parts.

Studebaker Hawk tires in 670-15 are offered in blackwall, narrow whitewall, and wide whitewall styles. The available whitewall treatments range from slim 1-inch styles to broader period-style whitewalls, with several intermediate widths as well. That gives Studebaker Hawk owners room to tune the car’s appearance from restrained factory-era understatement to a fuller early-1960s show look.

The right choice depends on how the car is being finished. A blackwall usually suits a more understated presentation, while a narrow whitewall gives a subtle upscale look and a wide whitewall creates the strongest period statement. If the goal is authenticity, compare the tire visually against original photos, sales literature, or surviving unrestored cars rather than selecting only by personal preference.

Studebaker Hawk tires in 670-15 are offered under Firestone, US Royal, Coker Classic, Universal Vintage Tire, BFGoodrich, Excelsior, Avon, Goodyear, and STA branding. Those products cover several classic bias-ply series, including Firestone Classic Bias Ply, US Royal Classic Bias Ply, Coker Classic Bias Ply, Universal Classic Bias Ply, Silvertown Classic Bias Ply, Turbospeed Mk4, Super Cushion, Custom Super Cushion, Super Cushion Deluxe, and Super Transport.

Brand selection on a collector car is usually about appearance, historical flavor, and the exact style you want on the wheel. Some owners choose a brand that complements the era of the car, while others focus first on sidewall width or a specific tread family. Studebaker Hawk has a broad enough spread of brands that you can usually prioritize visual correctness without giving up the proper 670-15 fitment.

Studebaker Hawk is offered in several tire series within the 670-15 size, including Firestone Classic Bias Ply, US Royal Classic Bias Ply, Coker Classic Bias Ply, Universal Classic Bias Ply, Silvertown Classic Bias Ply, Turbospeed Mk4, Super Cushion, Custom Super Cushion, Super Cushion Deluxe, and Super Transport. All are bias-ply constructions, but they differ in brand identity, tread family, sidewall presentation, and in some cases load and inflation figures or intended service character.

For most Studebaker Hawk owners, the practical decision is to narrow the field by how the finished car should look and how it will be used. A touring-oriented restoration, a judged show car, and a car with a more utilitarian stance may all point toward different series even though the size stays the same. Compare the series visually and pay attention to approved rim-width ranges before settling on a final choice.

A 1963 Studebaker Hawk uses 670-15 on a 15-inch rim. The same size also appears for 1962 and 1964, so the year itself does not create a fitment split within this model group. What still matters is whether the car remains on its original-type wheel diameter and whether the wheel width falls within the range accepted by the tire you are considering.

Start with the wheel that is actually on the car, not just the sidewall of an old tire. Collector cars are often changed over decades of use, and replacement wheels can alter both appearance and fit. Once the 15-inch rim is verified, compare the wheel width to the tire’s approved range and then select the sidewall style that best matches the car’s restoration level, trim presentation, and intended driving use.

Studebaker Hawk should be stored in a cool, dry, dark environment with the tires kept away from direct sunlight, ozone sources, and sustained contact with petroleum products or solvents. Tires on collector cars age as much from environment and inactivity as from mileage, and bias-ply construction particularly benefits from stable storage conditions. Clean concrete is acceptable, but moisture and temperature swings should be minimized.

If Studebaker Hawk will sit for long periods, keep the tires properly inflated and move the car occasionally to avoid prolonged flat spotting. Some owners prefer to support the car lightly to reduce static load during winter storage, but the suspension should not hang fully unloaded for long periods without a broader preservation plan. A simple routine of clean storage, inflation checks, and periodic movement goes a long way toward preserving tire shape and sidewall condition.

Tires on a Studebaker Hawk should be inspected before every meaningful drive and more thoroughly at regular intervals during the season. On a collector car with bias-ply tires, that inspection should include inflation pressure, sidewall cracking, tread separation signs, uneven wear, valve condition, and any shift in how the car sits or steers. A car that has been parked for months deserves a more careful review than one driven frequently.

Regular inspection matters because classic cars often cover very few miles, which can hide age-related issues until the car is already in motion. Make the check visual and hands-on: look at both sidewalls, examine the bead area, and pay attention to how the tire feels when rolling the car out. Studebaker Hawk owners who drive to events should also recheck pressure after the car has sat overnight away from home.

Studebaker Hawk tires should be replaced when age, cracking, hardening, bulges, separation, or other structural warning signs appear, even if the tread still looks deep. Collector-car tires often age out long before they wear out, especially when the vehicle sees intermittent use and extended storage. Bias-ply tires can remain visually attractive while losing the flexibility and integrity needed for dependable road service.

That means tread depth alone is a poor guide on a Studebaker Hawk. If the car is newly acquired and the age of the tires is uncertain, replacement is often the safer starting point than trying to stretch service life from old rubber. Include the tubes in that decision, because aged tubes can fail independently of the casing. A periodic review by an experienced vintage tire installer is a sound part of long-term stewardship.

Studebaker Hawk is represented here with one period size across 1962 through 1964: 670-15. The available replacement tires include several classic bias-ply series and multiple sidewall treatments, which reflects the kinds of visual and service variations owners associate with early-1960s American cars. No single brand should be assumed as universal for every Studebaker Hawk without checking the specific car’s history and reference materials.

For an authenticity-minded restoration, start with the correct size first and then refine the choice by sidewall style and brand character. Original sales literature, surviving photos, build records, and marque-club knowledge are the best tools for narrowing the most convincing presentation for a particular Studebaker Hawk. That approach keeps the restoration grounded in the car’s era without guessing at details that may have varied from one example to another.

Correct tire fitment can absolutely affect how a Studebaker Hawk is perceived in both judged and enthusiast settings. Size, profile, sidewall treatment, and overall period appearance all contribute to whether the car looks coherent for its era. Even when the mechanical fit is acceptable, an obviously modern or visually incorrect tire can distract from otherwise careful restoration work.

For owners concerned with value or show presentation, tires should be treated as part of the car’s visual architecture rather than as a generic wear item. A Studebaker Hawk with the proper 670-15 proportions and an era-appropriate sidewall style will usually present more convincingly than one fitted with a substitute chosen only for convenience. Marque clubs and event judging standards are worthwhile references if the car is being finished to a specific level.

Studebaker Hawk restoration tires are available in blackwall, narrow whitewall, and wide whitewall styles, and any of those can be appropriate depending on the car’s intended presentation. A blackwall gives the leanest, most understated look, while narrow and wide whitewalls each move the car toward a more visibly upscale early-1960s appearance. The correct choice is less about the size, which remains 670-15, and more about how the individual car was equipped or is being interpreted.

A faithful restoration usually benefits from comparing the chosen whitewall width against original photography and trim level cues. Studebaker Hawk has enough styling presence that sidewall choice changes the car’s visual balance more than many owners expect. If the goal is concours-style authenticity, match the sidewall treatment to period references rather than selecting the widest whitewall simply because it is available.

Properly installed, correctly sized 670-15 collector tires can be suitable for driving a Studebaker Hawk on public roads when the rest of the car is equally roadworthy. The available options here are bias-ply tires, so they should be approached as vintage-style service equipment with handling and response characteristics different from modern radials. Tire condition, age, inflation, wheel integrity, steering condition, and brake performance all matter together.

That means road safety for a Studebaker Hawk is a system question, not a tire-only question. A fresh set of correctly fitted tires cannot compensate for loose suspension parts, poor alignment, weak brakes, or decades-old tubes. Before regular road use, inspect the chassis carefully and drive the car in a way that respects period tire behavior. A collector car on proper bias-ply tires rewards smooth inputs and conservative speeds.

Before driving a Studebaker Hawk, check tire inflation, visible sidewall condition, tread condition, valve stems, and whether the car sits level at all four corners. On a bias-ply-equipped car, also pay attention to signs of flat spotting after storage and any vibration or pull that appears as the car begins to move. Wheels should be secure, and the tires should show no bulges, exposed cords, or bead-area damage.

A short pre-drive routine is especially valuable on a collector Studebaker Hawk because the car may sit for days or weeks between outings. Roll the car forward a few feet, recheck appearance, and listen for anything unusual before heading into normal traffic. If the steering feels unsettled, the brake pedal changes, or the car develops heat or vibration quickly, stop and inspect rather than trying to drive through the symptom.

A Studebaker Hawk fitted with period-style bias-ply replacement tires should be driven at speeds appropriate to the car’s age, tire construction, and overall mechanical condition rather than to modern traffic expectations alone. Bias-ply tires can perform well in proper service, but they do not feel or react exactly like modern radial touring tires. Smooth steering, measured braking, and moderate sustained speed are part of using them correctly.

The practical guideline is to treat Studebaker Hawk as a vintage grand-touring car, not as a modern high-speed commuter. If the car has just returned to service, build confidence gradually with local driving before attempting longer highway trips. Pay attention to heat buildup, stability, and steering feel, and adjust your cruising pace accordingly. The right speed is the one that keeps the car composed and well within the limits of its tires and chassis.