1970 Saab 99 Tires

The 1970 Saab 99 uses two primary tire sizes: 155R15 and 165R15. Both are radial tires designed for 15-inch wheels, and the 1970 Saab 99 Base is associated with both sizes rather than one exclusive sub-model-only fitment.

That means the real job is confirming which size is actually on the car now and whether the wheels match the intended tire’s width range. A Saab 99 that has had wheel changes over the years may favor one size more naturally than the other, so checking the existing wheel, sidewall marking, and clearance around the fenders and suspension is the safest next step.

The tire fitments used on the 1970 Saab 99 are built around a 15-inch rim diameter. Both 155R15 and 165R15 share that same wheel diameter, which is why the final number in each size code is 15.

Rim diameter is only part of the fitment picture, though. Wheel width still needs to match the tire being considered, and the available products show different approved rim-width ranges depending on size and tire series. Confirm the actual wheel width on the car before choosing between 155R15 and 165R15, especially if the Saab has replacement wheels from a previous restoration or driver-oriented update.

On a 1970 Saab 99, 155R15 is a Euro-metric radial size. The 155 is the nominal tire width in millimeters, the R indicates radial construction, and the 15 identifies the wheel diameter in inches.

This older European sizing format usually appears simpler than a modern metric size because it does not print an aspect ratio in the code. For a Saab 99 owner, the practical point is that 155R15 is a distinct narrow radial fitment and should not be confused with a modern P-metric size just because both use metric section widths. Wheel width and overall tire presentation should still be checked before installation.

Start with the correct primary size, since the 1970 Saab 99 uses either 155R15 or 165R15 on a 15-inch rim. From there, compare radial tire series, approved rim-width ranges, sidewall style, and any load information that matters for how the car is used.

A narrow 155R15 keeps the car in a very traditional European-looking size range, while 165R15 opens the door to a larger assortment of products and appearance choices. It also helps to think about whether the Saab is being restored as a period-style driver, used for regular fair-weather road miles, or set up for a more distinctive visual presentation with whitewalls.

Sidewall choices for the 1970 Saab 99 depend on tire size. In 155R15, the available products are blackwall radials, while 165R15 offers blackwall, narrow whitewall, and wide whitewall options.

That gives the buyer two very different visual paths. Blackwalls tend to preserve a restrained European look, while narrow or wide whitewalls in 165R15 create a more stylized period-inspired presentation. Since sidewall treatment changes the car’s appearance more dramatically than many buyers expect, it makes sense to settle the intended look first and then compare the tire series that offer that sidewall style within the correct size.

The 1970 Saab 99 has tire options from Firestone, Michelin, Avon, Vredestein, Coker Classic, American Classic, and BFGoodrich. Brand availability depends on size, with 155R15 centered on blackwall classic radials and 165R15 offering the widest spread of brands and visual styles.

Brand alone should not decide the purchase. Compare each tire by size, tire series, sidewall treatment, approved wheel-width range, and the kind of use the car will see. A Saab 99 driven for casual touring may point one way, while a restoration-minded owner choosing a specific look may end up prioritizing a different series or sidewall presentation within the same size.

For a period-style 1970 Saab 99, the starting point is staying with one of the car’s proper radial sizes: 155R15 or 165R15. A blackwall radial usually keeps the visual character closest to the understated European look most buyers associate with an early Saab 99.

The right choice depends on whether the goal is restrained authenticity in spirit or a more personalized vintage presentation. Since 165R15 adds narrow and wide whitewall options, it can shift the look substantially. When exact originality matters, compare the car against marque-club references, period photos, and restoration documentation before deciding on brand, series, or sidewall treatment.

On the 1970 Saab 99, construction changes are not the central visual issue because both primary fitments are radial. The stronger appearance differences come from tire size, sidewall style, and the specific series chosen within 155R15 or 165R15.

A blackwall radial maintains a clean, functional European presentation, while narrow or wide whitewalls in 165R15 push the car toward a more stylized collector look. Even within radial construction, tread style and sidewall profile can influence how tall, narrow, or formal the car appears. For a restoration-minded owner, those visual cues matter nearly as much as getting the size itself right.

Yes. Even though the 1970 Saab 99 uses 15-inch radial tire sizes, modifications can change which fitment works best in practice. Aftermarket wheels, altered wheel width, suspension changes, or bodywork repairs can all affect whether 155R15 or 165R15 is the better match.

A Saab 99 that no longer has its original wheel setup should be measured before new tires are chosen. Check wheel diameter and width first, then verify clearance at the fenders, steering range, and suspension. Those checks matter most when moving between the car’s two supported sizes, because the tire may still be correct in principle while the current vehicle setup narrows the practical choice.

Before driving a 1970 Saab 99 on new tires, inspect the wheels for correct diameter and width, make sure the tires are seated properly, and confirm there is no rubbing at full steering lock or through normal suspension movement. Tire pressure should also be set appropriately for the installed tires and the car’s condition.

A broader roadworthiness check is just as important on a low-mileage collector car. Look for worn suspension parts, loose steering components, brake issues, or alignment problems that can spoil the behavior of a fresh set of radials. A short, careful test drive followed by another visual inspection often reveals contact marks, unusual vibration, or pressure loss before they become bigger problems.

Collector-car tires in 155R15 or 165R15 should be checked regularly for air pressure, sidewall cracking, tread wear, bulges, cuts, and signs of age-related deterioration. Because a 1970 Saab 99 may spend long periods parked, condition matters just as much as miles driven.

Storage habits have a real effect on tire life. Keeping the car away from prolonged sunlight, moisture, excessive heat, and ozone sources helps preserve the rubber, and moving the car occasionally can reduce flat spotting during long layups. It also pays to inspect the spare, if present, and recheck pressures before any longer drive rather than assuming a lightly used tire is automatically road-ready.