The 1958 Saab 750 & 850 GT comes from Saab’s early two-stroke era, when the Swedish marque was building compact cars with a distinct engineering identity and a strong rally-influenced character. That light, efficient personality makes tire choice especially important, because the car’s handling feel and proportions depend on staying close to its intended fitment. This model uses a 155R15 radial on a 15-inch rim, giving owners a straightforward sizing path. Within that size, choices center on blackwall radial options from Firestone, Michelin, Avon, and Vredestein across several series. The real decision is matching the tire to the car’s road use, wheel setup, and restoration goals.
Which Tire Size Is Right for The 1958 Saab 750 & 850 GT
The 1958 Saab 750 & 850 GT uses one primary tire size: 155R15. It is a radial fitment on a 15-inch rim, and the covered Base sub-model uses that same size, so the main decision is not fitment variation but which 155R15 tire best matches your driving plans, preferred series, and restoration-minded appearance.
A 155R15 tire uses a 155-millimeter nominal section width, radial construction, and fits a 15-inch wheel. In this format, the aspect ratio is not stated in the size itself and is commonly associated with an 80-series profile, which suits the proportions of many European cars from this era. For the 1958 Saab 750 & 850 GT, this size opens up several blackwall radial choices, including Firestone, Michelin, Avon, and Vredestein lines. It is the right size to evaluate when the goal is to preserve the car’s intended scale while choosing a tire series that fits your driving conditions.
Tire fitment is straightforward across the covered 1958 Saab 750 & 850 GT sub-models. The key point is that the same primary size is used here, so selection comes down to the tire itself rather than a sub-model size difference.
1
1958 Saab 750 & 850 GT Base
The 1958 Saab 750 & 850 GT Base uses the same 155R15 radial fitment as the rest of the covered range. That keeps tire selection focused on choosing the right radial series, confirming wheel compatibility, and matching the tire’s character to either restoration-minded use or regular road driving.
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 1958 Saab 750 & 850 GT Tires for Sale
Available 155R15 choices for the 1958 Saab 750 & 850 GT are all radial blackwall tires from Firestone, Michelin, Avon, and Vredestein. The main differences in the product grid come from tire series, rim-width compatibility, and individual product specifications within the same overall size category.
Owners of a 1958 Saab 750 & 850 GT usually want clarity on 155R15 sizing, 15-inch rim fitment, radial tire choices, restoration-minded appearance, and the checks worth making before putting a collector-era Saab back on the road.
Tire Size & Fitment
What tire size fits a 1958 Saab 750 & 850 GT?
The 1958 Saab 750 & 850 GT uses a 155R15 radial tire. That is the primary size for this model and it keeps the car in the Euro-metric radial format associated with many compact European vehicles of the period.
Using the correct size matters because a small, lightweight Saab can feel noticeably different when tire dimensions drift away from the intended range. A 155R15 search should still be paired with a check of the actual wheel diameter, wheel width, and any changes made over the years, especially on a collector car that may no longer be running its original wheel setup.
What size rim does a 1958 Saab 750 & 850 GT use?
The 1958 Saab 750 & 850 GT uses a 15-inch rim with its 155R15 tire fitment. That 15-inch diameter is the key wheel measurement to confirm before choosing tires, since the tire size itself is built around a 15-inch wheel.
Rim diameter is only part of the fitment picture, so wheel width should be checked as well before final selection. Several 155R15 products in this size family are intended for relatively narrow wheels, and a Saab that has been modified with different wheels may need a closer look at width, clearance, and overall compatibility before mounting a new set.
Does the 1958 Saab 750 & 850 GT Base use the same tire size?
Yes. The 1958 Saab 750 & 850 GT Base uses the same 155R15 radial tire size. That makes sub-model fitment simple, because the core tire-size decision stays consistent within the covered configuration.
Even with shared size fitment, the best choice can still vary by how the car is used. A more road-focused owner may compare tire series differently than someone aiming for a restoration-minded presentation, and both should confirm that the wheels on the car remain 15-inch units with widths that suit the particular 155R15 tire under consideration.
Choosing the Right Tire
What should I consider when choosing a 155R15 tire for a 1958 Saab 750 & 850 GT?
Start with the correct 155R15 size and the car’s 15-inch wheel diameter, then compare the radial tire series available in that size. For this Saab, the choice is really about matching the tire to your wheel width, intended use, and the kind of period-style presentation you want from a blackwall radial.
Selection becomes more meaningful once the car’s condition and purpose are clear. A lightly driven collector car, a car used in varied weather, and a Saab that sees more active road use may all point toward different series within the same size, so it is worth comparing rim-width ranges, product construction details, and any load information shown for the exact tire.
What brands offer tires for the 1958 Saab 750 & 850 GT?
Tires in the 155R15 fitment for the 1958 Saab 750 & 850 GT are available from Firestone, Michelin, Avon, and Vredestein. Those brands cover several radial series within the same general size, giving owners more than one path to stay with the proper fitment.
Brand choice should be treated as one part of the decision rather than the whole decision. It helps to compare the exact series, the wheel-width suitability, and the type of use the car will see, since two tires in the same 155R15 size may still differ in character, specification detail, and how well they align with a restoration-oriented or driving-focused build.
What tire series are available for the 1958 Saab 750 & 850 GT?
The 1958 Saab 750 & 850 GT’s 155R15 fitment includes several radial series, including Firestone F560 Radial, Michelin X, Michelin XAS, Michelin XAS-FF, Avon CR6ZZ, Vredestein Snow Classic, and Vredestein Sprint Classic. All stay within the same overall size family while offering different product personalities.
Series choice matters because it helps define how the tire suits the car’s intended use. Some owners may want a more traditional European-style radial presentation, while others may be comparing specialty road characteristics or seasonal emphasis, so the smart next step is to match the series to the wheel dimensions on the car and the kind of driving the Saab will actually do.
Restoration & Appearance
Which tire should I choose for a period-style 1958 Saab 750 & 850 GT?
A period-style approach starts with the correct 155R15 size and a blackwall radial presentation, since that keeps the 1958 Saab 750 & 850 GT in the proper visual range for its compact European character. From there, the choice becomes a matter of selecting a radial series that supports the look and use you want.
Exact originality can go beyond size alone, so serious restoration work benefits from checking marque references, historical photos, or club guidance before settling on a specific brand or series. For many owners, though, staying with the proper 155R15 blackwall format is the most important step in preserving the car’s period-style stance and overall appearance.
Does correct tire fitment matter for a 1958 Saab 750 & 850 GT restoration?
Yes, correct tire fitment matters a great deal on a 1958 Saab 750 & 850 GT restoration. A compact early Saab depends on relatively narrow tires and the right overall proportions, so using the proper 155R15 size helps preserve both the visual balance and the way the car sits on its wheels.
Restoration results can look off quickly when width, diameter, or sidewall proportions stray too far from the intended fitment. Even if the car is not being restored to strict show standards, it is worth confirming wheel dimensions, avoiding oversized substitutes, and choosing a radial that supports the Saab’s original character rather than overwhelming a small-bodied, lightweight design.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1958 Saab 750 & 850 GT?
Yes. Modifications can change how a 155R15 tire works on a 1958 Saab 750 & 850 GT, even when the size itself sounds correct. Different wheel widths, changed offsets, suspension alterations, or body modifications can all affect clearance and the way the tire sits in relation to the fenders and steering components.
A modified Saab should be measured rather than assumed to match stock dimensions. Checking wheel diameter, wheel width, steering sweep, and available space around the tire helps avoid surprises, and that is especially important on a small car where fitment margins can be tighter than on larger classics with more generous wheelhouse room.
What should I inspect before driving a 1958 Saab 750 & 850 GT on new tires?
Before driving a 1958 Saab 750 & 850 GT on new tires, inspect the wheels, valve stems, and overall mounting condition, then confirm proper inflation for the chosen tire. It also makes sense to check for suspension wear, loose steering components, and any rubbing points that might only show up once the car is back on the road.
A short, careful test drive is the best follow-up after installation. Pay attention to air retention, steering response, vibration, and clearance during turning, since collector cars may reveal old alignment or suspension issues only after fresh tires are installed and carrying the car more consistently than the aged set they replaced.
How should 155R15 tires on a collector 1958 Saab 750 & 850 GT be maintained?
155R15 tires on a collector 1958 Saab 750 & 850 GT should be maintained with regular pressure checks, visual inspections, and periodic driving or repositioning so the car is not left resting in one spot for too long. Sidewalls and tread should be watched for cracking, cuts, bulges, and uneven wear.
Storage conditions matter just as much as mileage on an older collector car. Keeping the Saab away from prolonged sunlight, excess heat, moisture, and ozone sources helps protect the rubber, and routine inspections remain important because low annual mileage can hide age-related tire deterioration that is easy to miss until road use begins again.
