By 1985, the Ferrari 308 GTS had become one of the defining Italian sports cars of its era, blending mid-engine balance, sharp Pininfarina lines, and the open-roof appeal that made the GTS especially memorable. The Quattrovalvole 4V version carries that later 308 character, and its tire fitment reflects a more modern performance layout with staggered radial sizes. The 1985 Ferrari 308 GTS uses 205/55R16 up front and 225/50R16 at the rear on 16-inch rims. Available choices center on blackwall performance radials, with a whitewall option in the front size. The key is matching the correct front and rear sizes while keeping wheel fitment, appearance, and intended road use in balance.
Which Tire Size Is Right for The 1985 Ferrari 308 GTS
The 1985 Ferrari 308 GTS uses two primary tire sizes, both in metric radial construction on 16-inch rims. The first step is confirming whether you are selecting a front or rear tire, because the Quattrovalvole 4V fitment is staggered. Once that is established, the real choice becomes comparing available radial tire series, brand options, sidewall style, and wheel-width compatibility within the correct size.
205/55R16 is a metric radial size in which 205 is the nominal section width in millimeters, 55 is the aspect ratio, R identifies radial construction, and 16 is the rim diameter in inches. On the 1985 Ferrari 308 GTS, this size is used at the front, where maintaining the correct front fitment is important to the car's intended staggered setup. Available choices include BFGoodrich, Michelin, and American Classic options, mostly in blackwall form with one wide whitewall alternative. This is the size to evaluate when refreshing the front end while keeping the proper wheel diameter and tire profile family in place.
225/50R16 is a metric radial size with a 225-millimeter nominal section width, a 50-series profile, radial construction, and a 16-inch rim diameter. On the 1985 Ferrari 308 GTS, this size is used at the rear, giving the car the wider rear fitment that belongs with its staggered tire arrangement. Product choices in this size include BFGoodrich and Michelin blackwall performance radials across several tire series. This is the size to focus on when replacing the rear tires and confirming that the wheel width and overall setup match the intended rear application.
Sub-model fitment on the 1985 Ferrari 308 GTS is straightforward once front and rear positions are separated correctly. Checking the exact position matters here because the Quattrovalvole 4V uses one size at the front and a different size at the rear, even though both are radial tires on 16-inch wheels.
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1985 Ferrari 308 GTS Quattrovalvole 4V Front
The 1985 Ferrari 308 GTS Quattrovalvole 4V Front uses the narrower 205/55R16 radial size. That means front tire selection centers on choosing among the available radial brands and series while keeping the proper front fitment and 16-inch wheel compatibility intact.
The 1985 Ferrari 308 GTS Quattrovalvole 4V Rear uses the wider 225/50R16 radial size. Rear tire selection should stay focused on the correct staggered rear sizing, with attention to the available blackwall performance choices and the wheel-width range that suits this rear application.
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 1985 Ferrari 308 GTS Tires for Sale
Available 1985 Ferrari 308 GTS tires focus on the correct staggered 16-inch radial setup, with BFGoodrich, Michelin, and American Classic choices across several performance-oriented series. Most options are blackwall, while the 205/55R16 front size also includes a wide whitewall alternative for a more distinctive appearance.
These 1985 Ferrari 308 GTS tire FAQs focus on the staggered front and rear sizes, 16-inch rim fitment, available radial choices, appearance options, and the checks that matter before road use on a collector-era Ferrari.
Tire Size & Fitment
What tire size fits a 1985 Ferrari 308 GTS?
The 1985 Ferrari 308 GTS uses a staggered tire setup rather than one uniform size at all four corners. The front size is 205/55R16 and the rear size is 225/50R16, and both are radial tires built for 16-inch rims. That front-to-rear difference is a central part of the car's fitment.
Tire selection starts with identifying which axle you are replacing, because the front and rear sizes are not interchangeable. If the car has aftermarket wheels, changed suspension height, or a non-stock wheel width, verify the actual wheel setup before choosing a tire so the new set matches the car's current configuration.
What size rim does a 1985 Ferrari 308 GTS use?
The 1985 Ferrari 308 GTS uses 16-inch rims with both of its primary tire sizes. The 205/55R16 front tire and 225/50R16 rear tire are both built around that same 16-inch wheel diameter, even though the tire widths and aspect ratios differ between the front and rear positions.
Wheel diameter is only one part of fitment, so it still helps to confirm the actual wheel width before ordering tires. The available 205/55R16 products commonly suit 5.5- to 7.5-inch rims, while 225/50R16 choices commonly suit 6.0- to 8.0-inch rims, which matters if the car no longer wears its original wheel setup.
Why does the 1985 Ferrari 308 GTS have more than one tire size?
The 1985 Ferrari 308 GTS uses two sizes because its fitment is staggered, with a narrower 205/55R16 tire at the front and a wider 225/50R16 tire at the rear. That arrangement is part of the way this version of the 308 GTS is set up, rather than a sign of conflicting fitment information.
For the owner, the practical point is simple: front tires should be chosen as front tires, and rear tires should be chosen as rear tires. A mixed setup also means replacements should be checked by position, wheel width, and clearance, especially if the car has been modified or has wheels different from its original configuration.
Choosing the Right Tire
What should I consider when choosing tires for a 1985 Ferrari 308 GTS?
Start with the correct staggered sizes: 205/55R16 for the front and 225/50R16 for the rear, both on 16-inch rims. From there, compare tire series, construction details, brand, sidewall style, rim-width compatibility, and load figures where they are stated. The available choices are radial tires, but they are not all the same in character or presentation.
A useful way to narrow the field is to match the tire to the car's role. A road-driven 308 GTS may call for one type of radial series, while a restoration-minded owner may care more about appearance. Keeping the proper front and rear relationship intact matters more than treating the car like a square-fitment application.
What sidewall styles are available for 1985 Ferrari 308 GTS tires?
Most tire options for the 1985 Ferrari 308 GTS are blackwall radials, which suit the performance-oriented look associated with the car's 16-inch staggered setup. In the front 205/55R16 size, there is also a wide whitewall option. That makes sidewall appearance a real selection point, especially for the front tires.
The practical decision is whether you want a more traditional blackwall presentation or a more distinctive custom-style look. Because the wide whitewall appears in the front size rather than across both sizes here, anyone trying to keep a matched visual treatment front to rear should review the available sidewall choices for each axle before committing.
What brands offer tires for the 1985 Ferrari 308 GTS?
Available tire brands for the 1985 Ferrari 308 GTS include BFGoodrich, Michelin, and American Classic. BFGoodrich and Michelin appear in both the front and rear fitments, while American Classic appears in the 205/55R16 front size. Those brand choices are spread across several radial tire series and sidewall treatments.
Brand selection is best handled after the correct axle position and size are confirmed. Once the proper front or rear size is established, compare each brand's available series, rim-width range, sidewall style, and any stated load details. That approach keeps the choice grounded in fitment rather than choosing by brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 1985 Ferrari 308 GTS?
A period-style approach starts by keeping the correct staggered radial sizes in place: 205/55R16 at the front and 225/50R16 at the rear. Since this 1985 Ferrari 308 GTS already uses modern-style metric radial sizing, the main appearance decision is less about switching construction and more about selecting an appropriate tire series and sidewall presentation.
Blackwall tires usually align most naturally with the car's later-era sports-car character, while the available wide whitewall front option creates a more custom visual statement. When exact originality matters, the safest path is to compare the tire choice against marque-specific documentation, period photos, or trusted Ferrari reference material before finalizing the set.
How does tire construction affect the appearance of a restored 1985 Ferrari 308 GTS?
On a 1985 Ferrari 308 GTS, tire construction is less of an appearance divide than it would be on an older collector car, because the primary fitment is already radial. The visible differences are more likely to come from tire series design, sidewall treatment, and how closely the tire's proportions suit the car's intended stance.
That makes restoration-oriented selection more about preserving the correct front-to-rear relationship and choosing a tire with an appropriate visual character. A blackwall performance radial will usually maintain the expected late-classic sports-car look, while a whitewall option changes the presentation noticeably even when the size itself remains correct.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1985 Ferrari 308 GTS?
Yes, modifications can affect tire fitment on a 1985 Ferrari 308 GTS even when the tire sizes appear correct on paper. Aftermarket wheels, altered wheel width, suspension changes, ride-height adjustments, or body modifications can all change how a 205/55R16 front or 225/50R16 rear tire sits in the car's wheel openings.
That is why the actual wheel and vehicle setup should be checked before replacing tires on a modified car. Confirm the wheel diameter, wheel width, and clearance at steering lock and suspension travel, then compare those measurements with the tire's intended rim-width range so the staggered setup still works as intended.
What should I inspect before driving a 1985 Ferrari 308 GTS on new tires?
Before driving a 1985 Ferrari 308 GTS on new tires, inspect the wheels for damage, confirm that the front and rear sizes are mounted in the correct positions, and check inflation carefully. It also helps to look over the suspension and steering components, since worn parts can affect how a staggered tire setup feels on the road.
A collector car that sits for long periods deserves an extra walkaround before use. Look for air loss, sidewall damage, cuts, bulges, rubbing marks, or uneven wear, then make sure the tires clear properly at full steering lock. A short initial drive and recheck can catch small fitment or pressure issues before they become larger problems.
How should tires on a collector 1985 Ferrari 308 GTS be maintained?
Tires on a collector 1985 Ferrari 308 GTS should be maintained with regular pressure checks, periodic visual inspections, and attention to age-related condition rather than tread depth alone. Because these cars are often driven less than modern daily vehicles, sidewall cracking, flat spotting, and gradual air loss can matter just as much as mileage.
Storage conditions also play a big role in tire life. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources helps protect the rubber, and moving the car occasionally can reduce prolonged flat-spotting. Before any longer drive, inspect both front and rear tires separately since the staggered setup uses different sizes and applications.
