1955 Kaiser Tire Fitment Guide

1955 Kaiser vehicles use one tire size across the listed model range: 670-15. The 1955 Kaiser Manhattan is the model covered here, and it uses that same bias-ply size on a 15-inch wheel. Available products in 670-15 are built for 15-inch rims, with listed rim-width ranges of 4.50 to 5.00 inches on some products and 5.00 to 6.00 inches on others.

That makes 670-15 the first thing to confirm when sorting out tires for a 1955 Kaiser. After that, compare the actual wheel width on the car to the specific tire you are considering, because products in the same size can have different approved rim-width ranges. If your Kaiser has been restored, modified, or fitted with replacement wheels over the years, checking the wheel itself before choosing a product is time well spent.

A 670-15 size on a 1955 Kaiser is a traditional numeric bias-ply designation. The 6.70 portion identifies the tire's nominal section width in inches, while the 15 identifies the wheel diameter in inches. On a 1955 Kaiser, that means a bias-ply tire intended to mount on a 15-inch rim rather than a modern metric radial with a lower-profile construction.

Understanding that code helps you avoid mixing eras and formats when replacing tires on a 1955 Kaiser. If your goal is a factory-appropriate appearance and driving feel, the numeric bias-ply format is part of that equation, not just a sizing label. It also explains why blackwall and wide whitewall versions can share the same basic size while presenting very different visual character on the finished car.

Yes. The listed 1955 Kaiser model range is represented by the Manhattan, and it uses 670-15. There are no additional year-make sizes in this group, so the tire choice does not split by model core the way it often does on makes with separate compact, standard, and premium car lines.

That simplifies shopping for a 1955 Kaiser because you do not need to sort through multiple diameters or constructions at the year-make level. The real comparison is among the available 670-15 products: brand, blackwall versus wide whitewall appearance, approved rim width, and the load rating shown on the tire. Once those details match your car and restoration goals, the fitment path is much clearer.

1955 Kaiser tires in 670-15 are available in both blackwall and wide whitewall styles. Firestone and Universal Vintage Tire offer blackwall versions, while US Royal and Coker Classic offerings include wide whitewalls. That gives a 1955 Kaiser owner more than one way to finish the car visually while staying within the correct size and traditional bias-ply construction.

Sidewall style has a major effect on how a 1955 Kaiser presents, especially on a Manhattan where bright trim and mid-century styling play a big role in the car's personality. Wide whitewalls generally suit a fully dressed period look, while blackwalls lean more restrained and utilitarian. If the car is being judged, shown, or restored to a specific delivery appearance, compare the tire's whitewall width and overall look against period photos and marque references.

Tires for 1955 Kaiser vehicles in 670-15 are available from Firestone, US Royal, Coker Classic, and Universal Vintage Tire. All are offered in bias-ply construction for the size used by the 1955 Kaiser Manhattan. The brand choice does not change the basic fitment, but it does affect the tire's presentation, available sidewall style, and in some cases the listed load rating and rim-width range.

That means brand selection on a 1955 Kaiser is usually about matching the car's intended character rather than chasing a different size. Some owners prefer a heritage American brand name on a visible sidewall, while others focus on getting the right whitewall treatment or wheel-width compatibility for the wheels already on the car. Compare each brand's sidewall style and specifications carefully instead of assuming every 670-15 is identical.

The Firestone 670-15 for a 1955 Kaiser is a blackwall bias-ply tire with a listed load rating of 1450 pounds at 32 psi and an approved rim-width range of 4.50 to 5.00 inches. The Coker Classic 670-15 is a wide whitewall bias-ply tire with a listed load rating of 1550 pounds at 32 psi and an approved rim-width range of 5.00 to 6.00 inches. Both fit 15-inch wheels, but they differ in appearance and wheel-width suitability.

That comparison matters because two tires in the same nominal size can suit different cars and restoration goals within the same year and make. A Firestone blackwall may be the better visual fit for a plainer or more restrained presentation, while a Coker Classic wide whitewall can better suit a fully dressed Manhattan look. Measure the wheel before deciding, especially if the car has aftermarket or replacement rims.

1955 Kaiser tires in 670-15 fit 15-inch wheels, but the approved rim width depends on the specific product. Firestone and US Royal examples in this size list a 4.50 to 5.00 inch rim-width range, while a Coker Classic version lists a 5.00 to 6.00 inch range. That means the tire size alone does not tell the whole setup story.

Wheel measurement should be part of any tire decision on a 1955 Kaiser, especially if the car has changed hands several times or received replacement wheels during restoration. A tire that is correct in size can still be mismatched to the wheel if its approved rim-width range is ignored. Verifying the wheel width first helps preserve proper sidewall shape and keeps the finished stance looking appropriate.

The available 670-15 products for 1955 Kaiser vehicles are listed as bias-ply tires, but the tire descriptions here do not show TT or TL markings in the size field. Because of that, tube use should be matched to the exact tire chosen and the wheel construction on the car, especially on original mid-1950s steel wheels that may have their own sealing considerations.

A practical approach for a 1955 Kaiser is to inspect the wheel condition, confirm whether the rim is suitable for tubeless service, and then match that to the tire's own sidewall markings and manufacturer guidance. Tube decisions are never something to guess at on an older car. If the wheels are original, heavily restored, or have any pitting or seam concerns, a marque specialist or restoration shop can help you make the right call.

A 1955 Kaiser should be stored on clean, properly inflated tires in a cool, dry space away from direct sunlight, electric motors, battery chargers, welders, and other ozone sources that age rubber. Bias-ply tires are especially prone to flat-spotting when they sit in one place for long periods, so the car benefits from periodic movement or, during long-term storage, support that reduces continuous load on the tires.

Good storage habits matter as much as tread depth on a collector car that is driven occasionally rather than daily. If your 1955 Kaiser sits for weeks at a time, move it enough to change the contact patch and keep the tires clean and dry. A breathable cover helps the car, but keeping the tires out of heat, UV exposure, and chemical contamination is what most directly preserves the sidewalls.

Tires on a 1955 Kaiser usually age out before they wear out. For a collector vehicle, the safer rule is to evaluate tires closely once they reach about five to seven years of service and to treat around ten years from the DOT date code as a serious replacement point regardless of remaining tread. That principle applies even if the car is driven only occasionally and the tires still look presentable at a glance.

Age matters because the rubber compound and internal structure change over time, especially on older-style bias-ply tires used on cars like a 1955 Kaiser. If the car has been stored indoors and driven sparingly, the tires may still require replacement simply because of calendar age. Check the date code, inspect the sidewalls for cracking, and do not let low mileage create a false sense of security.

Tires on a 1955 Kaiser should be inspected before every drive and again before any longer outing. Look for sidewall cracking, cuts, bulges, tread separation, uneven wear, and signs that the tire has lost pressure since the last use. Any older collector car also deserves a close look at the valve stems and the spare before leaving on a trip.

Regular inspection is especially important because a 1955 Kaiser may spend more time parked than in motion, and storage-related aging can show up between drives rather than through high mileage. A quick walk-around is not enough if the car has been sitting for months. Use your hands and eyes, check inflation with a gauge, and treat any sudden change in appearance or pressure retention as a reason to investigate further.

A 1955 Kaiser Manhattan belongs to an era when bias-ply construction was standard on American passenger cars, and the listed year-make fitment is 670-15 in bias-ply form. That makes a numeric bias-ply tire the right historical starting point for an authentic-looking restoration. Original-equipment branding could vary by market, dealer, and production practice, so size, construction, and sidewall style are the safest details to match first.

For a restored 1955 Kaiser Manhattan, the next decision is whether the car should wear a blackwall or a wide whitewall to match the way you want the finished car to present. Period photos, sales literature, and Kaiser marque clubs can help narrow down what is most appropriate for your specific car. Even when the size is straightforward, show-level authenticity often comes down to sidewall treatment and overall stance.

Correct tire fitment matters on a 1955 Kaiser because judges and knowledgeable enthusiasts notice size, construction type, and sidewall style immediately. A 670-15 bias-ply tire aligns with the period, while an obviously modern format or an out-of-character sidewall treatment can stand out against the rest of the restoration. On a car with mid-1950s styling, the tire is a visible design element rather than a hidden service part.

That does not mean every event uses the same judging standard, so a 1955 Kaiser owner should match the tire choice to the type of show the car will enter. Concours-style events may scrutinize details more closely than casual local shows. If originality is the goal, confirm the expected sidewall appearance with event rules, period photography, and marque-specific resources before finalizing the set.

The US Royal 670-15 for the 1955 Kaiser is a wide whitewall bias-ply tire with a listed load rating of 1450 pounds at 32 psi and a 4.50 to 5.00 inch rim-width range. The Firestone 670-15 is also a bias-ply tire with a listed load rating of 1450 pounds at 32 psi and the same 4.50 to 5.00 inch rim-width range, but it is offered as a blackwall. The key difference is visual presentation rather than basic load or wheel-width compatibility.

For restoration purposes, that makes the choice less technical and more about the look you want your 1955 Kaiser to carry. A wide whitewall creates a more formal, upscale mid-century appearance, while a blackwall feels simpler and more understated. When two products share the same basic size and wheel-width range, the sidewall can become the deciding detail that ties the whole car together.

A properly built, correctly fitted 670-15 tire in good condition can be used for normal road driving on a 1955 Kaiser, but safety depends on more than the tire alone. The available tires here are bias-ply products, and no separate speed-letter markings are shown for this size, so the practical limit should be set by tire condition, inflation, load, and the capabilities of the car itself. On a mid-1950s American sedan, brakes, steering, suspension, and wheel condition matter just as much as the tire.

That means highway use in a 1955 Kaiser should be approached with the mindset of driving a collector car, not a modern commuter. Freshly inspected tires, correct pressure, sound wheels, and a mechanically sorted car are the foundation. If the Kaiser has been parked for long periods or recently awakened from restoration, start with shorter drives and build confidence in the whole vehicle before committing to sustained higher-speed travel.

The listed 670-15 tires for a 1955 Kaiser show maximum load figures of 1450 pounds at 32 psi on some products and 1550 pounds at 32 psi on another. Those numbers are tire ratings, not a blanket instruction to run every 1955 Kaiser at the maximum pressure all the time. The correct operating pressure should be checked against the vehicle's original recommendations and the specific tire manufacturer's guidance for the reproduction tire you choose.

Pressure should never be transferred casually from one tire model to another, even when the size matches. A 1955 Kaiser owner should start by identifying the exact tire, confirming the wheel, and then using the car's factory guidance as the baseline while respecting the tire's own limits. Consistent pressure checks matter more on a collector car because long storage periods can hide slow losses between drives.

Before a longer drive in a 1955 Kaiser, inspect all four tires and the spare for cracks, cuts, bulges, irregular wear, embedded debris, and proper inflation. Check that the valve stems are sound, the wheel hardware is secure, and the tread shows no signs of age-related separation. Because the 1955 Kaiser uses traditional bias-ply fitment, it is also wise to pay attention to how the car feels during the first few miles after sitting.

The tire check should be part of a broader pre-drive routine that includes brakes, steering, suspension, fluids, lights, and charging system health. A collector Kaiser can look fully restored and still have issues that only appear under sustained use. If anything feels different from the car's normal behavior, stop and investigate rather than trying to drive through it on a long outing.