Saab & 850 GT Tires

Saab 850 GT uses one listed tire size: 155R15 for 1961. Every available product for this application uses a 15-inch rim diameter, and the products shown are radial-construction tires. Stated rim-width ranges for the available tires generally fall between 4.00 and 5.50 inches, depending on the exact tire series.

That means fitment is less about choosing between multiple sizes and more about confirming that the wheel on the car is still the correct 15-inch diameter and falls within the tire maker’s approved rim-width range. If the car has been modified during its life, check the wheel stampings or measure the rim before selecting a tire.

On Saab 850 GT, 155R15 is a metric radial size. The 155 is the nominal section width in millimeters, the R indicates radial construction, and the 15 is the wheel diameter in inches. Some products add service markings such as 82H, 82S, 82T, or TL and TT, which identify load, speed, or tube-type and tubeless details for that particular tire design.

For a buyer, the important point is that all of those versions still center on the same basic 155R15 fitment. Once the wheel diameter is confirmed, the next step is choosing the tire series that best matches the car’s use, whether that is period-style road driving, sportier handling, or seasonal use.

Saab 850 GT uses a 15-inch rim diameter in the listed fitment. Every available tire for this application is built around a 15-inch wheel, and the published approved rim widths generally range from 4.00 to 5.50 inches depending on the exact tire model. There is no alternate rim diameter listed within this fitment group.

That makes wheel verification simpler than on many older cars, but it is still worth checking the actual wheels on the car because vintage vehicles are often changed over time. A correct 15-inch diameter alone is not enough if the wheel is unusually narrow or wide for the tire you want to use.

For a 1961 Saab 850 GT, the listed tire size is 155R15. The available products all use a 15-inch rim diameter, and the main variables are the tire series, service rating details, and approved rim-width range. Since only one size is listed, the fitment question is usually about whether the wheels on the car remain original in diameter and suitable in width.

Start by checking the sidewall of the old tire if it is known to be correct, then verify the wheel diameter directly on the rim. If the car has been restored, modified, or converted for competition use at some point, compare the wheel dimensions against factory literature or Saab specialist guidance before choosing among the available 155R15 options.

Saab 850 GT tires in the listed 155R15 size are available from Firestone, Michelin, Avon, and Vredestein. Those brands cover several distinct radial series, including Firestone F560 Radial, Michelin X, Michelin XAS, Michelin XAS-FF, Avon CR6ZZ, Vredestein Snow Classic, and Vredestein Sprint Classic. All are blackwall tires in this fitment group.

That variety gives Saab 850 GT owners room to match the tire to the character of the car. Some buyers prefer a more period-oriented road tire, while others may lean toward a sportier or seasonal design, so it helps to think about driving style, originality goals, and wheel width before narrowing the choice.

Saab 850 GT tires in the listed 155R15 fitment are offered in blackwall sidewall style. No whitewall or other decorative sidewall treatment appears in the available products for this size. That suits the restrained, European sporting character associated with an early-1960s Saab 850 GT.

For restoration-minded owners, blackwall is the visual direction supported by the available fitment options here. The practical decision then shifts away from appearance and toward tread design, ride character, and whether the tire’s approved rim-width range matches the wheels currently fitted to the car.

Saab 850 GT has several radial series available in 155R15, including Firestone F560 Radial, Michelin X, Michelin XAS, Michelin XAS-FF, Avon CR6ZZ, Vredestein Snow Classic, and Vredestein Sprint Classic. They are all radial tires on 15-inch rims, but they represent different designs and intended uses within that shared size. The Snow Classic stands apart as a winter-oriented series, while the others are road-focused classic radial offerings.

For a driver, series choice affects the car’s personality more than basic fitment does. A period-style touring radial may suit regular collector-car driving, while a more performance-minded series can sharpen response, and a winter-pattern design makes the most sense only if the car will be used in colder conditions where that tread style is appropriate.

Saab 850 GT should be stored on a clean, dry surface away from direct sunlight, ozone sources, and large temperature swings. Keep the tires inflated to a sensible storage pressure appropriate to the tire and the car’s weight, and avoid leaving the car parked for long periods on damp concrete or contaminated floors. If the car will sit for an extended season, moving it occasionally can help reduce flat spotting.

Collectors who want to preserve both ride quality and appearance should also keep the car clean underneath and avoid dressing the sidewalls with harsh chemicals. A breathable indoor cover and regular visual checks for cracking, distortion, or pressure loss will do more for tire life than simply relying on low annual mileage.

Tires on a Saab 850 GT should be inspected before each meaningful drive and more thoroughly at least a few times during the season, even if the car sees limited mileage. Check inflation, tread wear, sidewall condition, valve stems, and any signs of age-related cracking or impact damage. Because collector cars often sit longer than modern daily drivers, time and storage conditions matter as much as mileage.

An early-1960s Saab is light, but that does not eliminate the need for regular inspection. Small issues that go unnoticed in storage can become noticeable on the road as vibration, wandering, or pressure loss, so a short pre-drive walkaround and periodic hands-on inspection are worthwhile habits.

Tires on a Saab 850 GT should be replaced when they show age cracking, hardening, impact damage, irregular wear, repeated air loss, or any structural concern, even if the tread still appears deep. Collector-car tires often age out before they wear out. Appearance alone is not a reliable measure of serviceability on a low-mileage vintage car.

A practical approach is to treat age, storage history, and condition as seriously as tread depth. If the tires have an uncertain service history or the car has been inactive for long periods, a specialist inspection is wise before putting the Saab 850 GT back into regular road use.

The listed fitment for Saab 850 GT is 155R15, and the available products for that size are all radial tires on 15-inch rims. Several radial series are offered, including Michelin X, Michelin XAS, Michelin XAS-FF, Firestone F560 Radial, Avon CR6ZZ, and Vredestein classic lines. That gives a restorer size-correct options, but the specific original tire series for an individual car should be verified through period Saab literature or marque expertise.

For most restorations, getting the correct size, construction type, and overall visual character right matters first. Once those foundations are in place, details such as tread style and period brand preference can be refined according to the owner’s judging goals and the historical standard they are trying to meet.

Correct tire fitment can influence both presentation and judging on a Saab 850 GT because tires affect stance, proportions, and period character. A car fitted with the proper 155R15 size on the correct 15-inch wheels will usually look more convincing than one wearing a visibly altered diameter or width. Serious judges and knowledgeable enthusiasts often notice tire details quickly.

For market value, the effect depends on the type of Saab 850 GT being presented. A preservation-oriented or accurately restored example benefits most from correct-looking rubber, while a driver-quality car has more flexibility, but even then, properly sized tires help preserve handling balance and keep the car visually honest.

Saab 850 GT tires in the listed fitment are available in blackwall form. That sidewall style aligns naturally with the compact European sporting look of an early-1960s Saab, and it is the style supported by the available 155R15 products here. No whitewall alternative appears in this fitment group.

For a restoration, blackwall is the straightforward choice if the goal is an authentic overall presentation. With sidewall style already narrowed, the more meaningful authenticity decisions become which radial series best matches the period feel you want and whether the wheel width on the car suits that tire properly.

A properly sized and correctly installed 155R15 radial can be appropriate for driving a Saab 850 GT on public roads when the tire is in sound condition and the car itself is mechanically prepared for use. The available products are all modern radial constructions rather than aged period casings. Safety still depends on the complete vehicle, including brakes, steering, wheel condition, alignment, and inflation.

Before any regular road use, treat the tires as one part of a larger safety check rather than as a cure for deferred chassis work. Saab 850 GT is a light and engaging car, but it rewards careful preparation, and even good tires will not compensate for worn suspension parts or damaged wheels.

Before driving a Saab 850 GT, check tire pressure, visible sidewall condition, tread condition, wheel fasteners, and whether the tires are seated properly on the rims. A quick inspection for cracking, bulges, cuts, or objects in the tread is essential on any collector car, especially one that may sit between drives. Also make sure the spare and jack equipment are suitable for the tire and wheel size fitted to the car.

On the first drive after storage, keep speeds moderate until the tires have warmed and any temporary flat spotting has worked out. If the Saab 850 GT shows vibration, pulling, or unusual steering feel, stop and inspect the tires and wheels before continuing.

The right speed for a Saab 850 GT depends on the exact tire chosen, its service condition, and the mechanical state of the car, not simply on the fact that it is a 155R15 fitment. Some listed tires carry service designations such as H, S, T, or Q, but a vintage car should always be driven within the limits of its full chassis and braking system. Smooth, conservative operation is more important than chasing the highest rating on the sidewall.

For practical use, let the car’s overall condition set the pace. Even with modern radial construction, Saab 850 GT is still an early-1960s collector car, so moderate speeds, proper inflation, and regular inspections are the habits that preserve both safety and the character of the drive.