The 1968 Porsche 912 sits in a sweet spot of late-1960s Porsche ownership, blending the long-hood 911 shape with the lighter, approachable character that made the 912 such a rewarding driver’s car. Buyers looking after one today usually care just as much about steering feel and stance as they do about outright originality. This model uses a 165R15 radial tire on a 15-inch rim, so the key decision is usually not size confusion but choosing the right version of that fitment. Blackwall, narrow whitewall, and wide whitewall options are available across several vintage-style radial lines. The right choice depends on whether the goal is European touring character, restoration-minded appearance, or regular road use.
Which Tire Size Is Right for The 1968 Porsche 912
The 1968 Porsche 912 uses one primary tire size: 165R15. It is a radial fitment on a 15-inch rim, and the same size carries across the 912 Base sub-model, so the main decision is choosing the tire series, sidewall style, and overall presentation that best suits the car rather than sorting through multiple factory fitments.
A 165R15 tire uses a 165-millimeter nominal section width, radial construction, and a 15-inch rim diameter; in this format, the aspect ratio is not stated and is commonly associated with an 80-series profile. On a 1968 Porsche 912, that makes it a classic European radial size with the look and road manners many owners expect from the car. Available choices include blackwall, narrow whitewall, and wide whitewall versions from brands such as Michelin, Firestone, BFGoodrich, American Classic, Coker Classic, and Vredestein. This size makes it possible to stay close to the car’s traditional fitment while still selecting a tire that matches your appearance goals and intended use.
Tire fitment is straightforward for the covered 1968 Porsche 912 sub-models. The same 165R15 radial size is used here, so checking the sub-model mainly confirms that the buying decision comes down to tire style, brand, and wheel compatibility rather than a different primary size.
1
1968 Porsche 912 Base
The 1968 Porsche 912 Base uses the same 165R15 radial tire as the main model fitment. That keeps selection focused on choosing the right blackwall or whitewall presentation, tire series, and wheel-width compatibility for the way the car is being restored or driven.
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 1968 Porsche 912 Tires for Sale
Available 165R15 tires for the 1968 Porsche 912 span blackwall, narrow whitewall, and wide whitewall styles from Michelin, Firestone, BFGoodrich, American Classic, Coker Classic, and Vredestein. The product grid is most useful for comparing tire series, appearance, and rim-width compatibility within this one classic radial size.
Common questions for the 1968 Porsche 912 usually center on the 165R15 fitment, 15-inch wheel compatibility, blackwall versus whitewall appearance, and how to choose the right vintage-style radial for restoration-minded use or regular driving.
Tire Size & Fitment
What tire size fits a 1968 Porsche 912?
The 1968 Porsche 912 uses a 165R15 radial tire. That is the primary fitment for this model, and it is a classic Euro-metric radial size that pairs a 165-millimeter nominal section width with a 15-inch rim diameter.
Because there is one main size to work from, the real selection process is about choosing the right tire within 165R15. Sidewall style, tire series, brand preference, and wheel-width compatibility are the factors to compare, especially if the car has been fitted with replacement wheels or other period-style changes over the years.
What size rim does a 1968 Porsche 912 use?
The 1968 Porsche 912 uses a 15-inch rim with its 165R15 tire fitment. Product options in this size are built around that 15-inch diameter, with usable rim-width ranges that generally fall within the narrow factory-era wheel sizes common to European sports cars of the period.
Rim diameter should be confirmed before ordering because a 15-inch tire cannot be mounted on a different wheel diameter. It also helps to check actual wheel width, since some 165R15 options are intended for widths such as 4.0 to 5.5 inches, while others allow a slightly broader range.
Does the 1968 Porsche 912 Base use the same tire size?
Yes. The 1968 Porsche 912 Base uses the same 165R15 radial size as the main model fitment. That keeps sizing simple and means the buyer does not need to sort through multiple primary tire sizes within this covered sub-model.
Even with shared sizing, it still pays to confirm the actual wheel setup on the car. A restored or modified 912 may have different wheel widths than expected, and that can influence which 165R15 product is the better match for appearance, sidewall style, and intended road use.
Choosing the Right Tire
What should I consider when choosing a 165R15 tire for a 1968 Porsche 912?
Start with the confirmed 165R15 size and the car’s actual 15-inch wheel dimensions. From there, the main differences are tire series, brand, sidewall presentation, and the rim-width range each product is designed to work with.
A blackwall tire usually suits an understated European sports-car look, while narrow or wide whitewalls create a more stylized presentation. It also helps to compare load figures, pressure references where stated, and whether the tire’s overall character matches your use of the car, whether that means regular driving, show presentation, or occasional touring.
What sidewall styles are available for 1968 Porsche 912 tires?
165R15 tires for the 1968 Porsche 912 are available in blackwall, narrow whitewall, and wide whitewall styles. That gives the car a broad appearance range, from a more traditional European road look to a distinctly restoration-oriented whitewall presentation.
The sidewall choice does not change the basic size, but it does change the visual character of the car significantly. Many buyers choose blackwall for a restrained sports-car appearance, while narrow or wide whitewalls are selected to emphasize period style, show presentation, or a very specific restoration theme.
What brands offer tires for the 1968 Porsche 912?
The 1968 Porsche 912 has 165R15 tire options from Coker Classic, American Classic, Firestone, BFGoodrich, Michelin, and Vredestein. Those brands appear across several vintage-style radial lines, giving buyers more than one path within the same primary size.
Brand alone should not be the only deciding factor. Comparing the individual tire series, blackwall or whitewall treatment, and the wheel-width range for each product is more useful, especially on a car like the 912 where appearance, steering character, and wheel fitment often matter just as much as the name on the sidewall.
Restoration & Appearance
Which tire should I choose for a period-style 1968 Porsche 912?
A period-style approach for a 1968 Porsche 912 usually starts with staying in the 165R15 radial size. From there, the choice depends on whether the goal is a blackwall European touring look or a whitewall presentation that leans more toward a personalized restoration style.
Tire series and sidewall treatment shape the car’s visual character more than the size itself, since the primary fitment stays the same. When exact historical originality matters, it is worth checking marque references or restoration documentation so the final appearance aligns with the specific look you want the car to carry.
How does tire construction affect the appearance of a restored 1968 Porsche 912?
On the 1968 Porsche 912, the primary fitment is already a radial, so construction changes are not the main appearance issue. The more visible difference comes from the tire’s sidewall treatment and tread-era character within the 165R15 radial format.
That means a restored 912 can keep the proper overall size relationship while still looking quite different depending on the tire selected. Blackwall tires usually preserve a restrained sports-car presentation, while narrow and wide whitewalls create a much more stylized look that should be chosen intentionally rather than by habit.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1968 Porsche 912?
Yes. Even though the 1968 Porsche 912 uses a 165R15 tire on a 15-inch rim, modifications can still affect fitment. Replacement wheels, altered wheel width, suspension changes, or body and alignment adjustments can change how well a given 165R15 tire suits the car.
That is why it helps to verify the actual wheel dimensions and inspect clearance at the fenders and steering stops before settling on a tire. A classic Porsche may look stock from the outside while carrying changes underneath, and those details matter when comparing products with slightly different approved rim-width ranges.
What should I inspect before driving a 1968 Porsche 912 on new tires?
Before driving a 1968 Porsche 912 on new tires, inspect wheel condition, valve stems, lug hardware, and basic suspension and steering health. The new 165R15 tires should also be checked for proper mounting, inflation, and adequate clearance once the car is back on the ground.
A short test drive should include attention to any rubbing, vibration, pulling, or unusual steering feel. Classic cars that sit for long periods also deserve a second look after the first drive, since small air-loss issues, loose hardware, or hidden clearance problems are easier to correct early than after extended road use.
How should 165R15 tires on a collector 1968 Porsche 912 be maintained?
165R15 tires on a collector 1968 Porsche 912 should be kept properly inflated, inspected regularly for cuts, cracking, bulges, and uneven tread wear, and protected from long exposure to sunlight, heat, moisture, and ozone sources. Cars that are driven only occasionally still need routine tire checks.
Collector cars often age their tires through time and storage conditions rather than mileage alone. It is smart to inspect the tires before each outing and after long periods of sitting, while also watching for slow air loss or flat spotting that can affect ride quality and steering response on the road.
