The 1991 Ferrari 348 TB belongs to Ferrari’s early-1990s transition into a more modern mid-engine road car, combining sharp wedge-era styling with a chassis and tire package that depend on a deliberate front-to-rear stagger. This is not a single-size fitment car. The 348 TB uses 215/50R17 radial tires in front and 255/45R17 radial tires in the rear, both on 17-inch wheels. That setup means tire choice is tied not only to size, but also to preserving the car’s intended stance and balance. Available options include blackwall sport radials up front and, at the rear, blackwall, redline, and raised white letter choices depending on the look and driving character you want.
Which Tire Size Is Right for The 1991 Ferrari 348 TB
The 1991 Ferrari 348 TB uses two primary tire sizes, with one size assigned to the front and a wider size assigned to the rear. Both are radial tires mounted on 17-inch rims, so the first step is confirming whether you are replacing the front pair or the rear pair. Once that is settled, the real decision becomes selecting the right tire within that position-specific size, including brand, sidewall style, and rim-width compatibility.
In 215/50R17, the 215 is the nominal section width in millimeters, the 50 is the aspect ratio, the R indicates radial construction, and the 17 is the wheel diameter in inches. On the 1991 Ferrari 348 TB, this is the front tire size, making it part of the car’s staggered fitment rather than a universal four-corner size. Available choices center on BFGoodrich blackwall performance radials across the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A lines. This size should be chosen when the front-wheel setup is being replaced and the wheel width matches the tire’s intended range.
In 255/45R17, the 255 is the nominal section width in millimeters, the 45 is the aspect ratio, the R marks radial construction, and the 17 identifies the wheel diameter. On the 1991 Ferrari 348 TB, this is the rear tire size, and its wider footprint is part of the car’s front-to-rear staggered arrangement. Product choices include blackwall performance radials from BFGoodrich and Nitto, along with Pro-Trac Street Pro III options in redline and raised white letter form. This is the size to evaluate when replacing the rear tires and confirming rear wheel width, clearance, and appearance goals.
Sub-model fitment on the 1991 Ferrari 348 TB is straightforward, but it is split by vehicle position rather than by trim variation. Checking whether you are working with the front or rear setup matters because the car uses different tire sizes at each end.
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1991 Ferrari 348 TB Base Front
The 1991 Ferrari 348 TB Base Front uses the narrower front-specific radial size in the car’s staggered 17-inch setup. Tire selection here is mainly about choosing the right performance-oriented radial within that size and confirming the wheel width matches the tire’s recommended range.
The 1991 Ferrari 348 TB Base Rear uses the wider rear-specific radial size that completes the car’s staggered fitment. Rear tire selection brings more visible style variation, including blackwall, redline, and raised white letter options, so appearance and wheel compatibility both deserve a close look.
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 1991 Ferrari 348 TB Tires for Sale
Available 1991 Ferrari 348 TB tires focus on 17-inch radial performance options. Choices include BFGoodrich, Nitto, and Pro-Trac products, with blackwall options in both front and rear sizes and additional redline or raised white letter styling offered in the 255/45R17 rear fitment.
Common 1991 Ferrari 348 TB tire questions usually come down to staggered front and rear sizing, 17-inch rim fitment, brand and sidewall choices, and the checks worth making before putting a low-use performance car back on the road.
Tire Size & Fitment
What tire size fits a 1991 Ferrari 348 TB?
The 1991 Ferrari 348 TB uses a staggered tire setup, not one size at all four corners. The front tire size is 215/50R17 and the rear tire size is 255/45R17, and both are radial tires built for 17-inch wheels.
That front-to-rear difference is an important part of the car’s fitment. A buyer replacing tires should first confirm whether the work is being done at the front or rear, then verify the actual wheel width and overall wheel setup on the car, especially if it has had wheel, suspension, or stance changes over time.
What size rim does a 1991 Ferrari 348 TB use?
Both primary tire sizes for the 1991 Ferrari 348 TB are built around a 17-inch rim diameter. The front 215/50R17 and rear 255/45R17 sizes share that wheel diameter, even though the rear tire is substantially wider than the front.
Rim diameter is only part of the fitment picture, so it should not be the only thing checked. Wheel width also matters, particularly on a staggered sports car like the 348 TB, because the front and rear tires are intended for different width ranges and should be matched to the actual wheels on the car.
What does 215/50R17 mean on a 1991 Ferrari 348 TB?
On a 1991 Ferrari 348 TB, 215/50R17 means the tire is 215 millimeters wide in nominal section width, has a 50-series aspect ratio, uses radial construction, and mounts on a 17-inch wheel. On this car, that size is used at the front.
Understanding the code helps separate front and rear fitment on a staggered setup. It also gives a useful starting point when comparing products, since tires in the same basic size can still vary by brand, series, load specification, sidewall treatment, and recommended wheel-width range.
Choosing the Right Tire
What should I consider when choosing a 215/50R17 tire for a 1991 Ferrari 348 TB?
Choosing a 215/50R17 front tire for a 1991 Ferrari 348 TB starts with getting the size and 17-inch rim fitment right. From there, the main comparisons are among BFGoodrich radial options in different g-Force series, all offered as blackwall tires in this front size.
The next step is checking how the tire matches the actual front wheel width and how you use the car. A low-mileage collector car, a regularly driven street car, and a preservation-focused example may all point toward different priorities, even within the same front tire size and radial construction.
What sidewall styles are available for 1991 Ferrari 348 TB tires?
Sidewall style depends on which end of the 1991 Ferrari 348 TB you are replacing. The 215/50R17 front size is offered in blackwall form, while the 255/45R17 rear size includes blackwall choices as well as redline and raised white letter options.
That means appearance selection is more flexible at the rear than at the front. Buyers trying to preserve a more understated modern performance look may stay with blackwalls, while someone shaping a more personalized period-style presentation may spend more time comparing the rear sidewall treatments.
What brands offer tires for the 1991 Ferrari 348 TB?
Tires for the 1991 Ferrari 348 TB are available from BFGoodrich, Nitto, and Pro-Trac. BFGoodrich appears in both the front 215/50R17 and rear 255/45R17 sizes, while Nitto and Pro-Trac are available in the 255/45R17 rear size.
Brand is only one part of the choice. It makes sense to compare each option by size position, tire series, sidewall style, wheel-width suitability, and the overall look you want the car to carry, rather than choosing on brand name alone and assuming every product serves the same purpose.
Restoration & Appearance
Which tire should I choose for a period-style 1991 Ferrari 348 TB?
A period-style 1991 Ferrari 348 TB tire choice starts with preserving the car’s staggered 215/50R17 front and 255/45R17 rear layout on 17-inch wheels. Within that fitment, blackwall radial performance tires keep the presentation closest to the restrained modern sports-car look associated with the model’s era.
Appearance goals still matter within the correct sizes. A buyer focused on a cleaner restoration-oriented presentation may prefer blackwalls front and rear, while someone pursuing a more personalized look may consider the rear redline or raised white letter offerings, then compare those choices against marque references and the car’s intended character.
How does tire construction affect the appearance of a restored 1991 Ferrari 348 TB?
On the 1991 Ferrari 348 TB, tire construction is straightforward because the primary fitment is radial at both ends. That means appearance differences come less from bias-ply versus radial considerations and more from the tire’s sidewall treatment, series styling, and how closely the overall presentation suits an early-1990s Ferrari.
A restoration-minded owner usually gets the most visually coherent result by keeping the staggered radial setup intact and choosing sidewalls carefully. Blackwalls generally maintain the most understated look, while redline or raised white letter rear tires make a stronger visual statement and should be selected with the car’s finished look in mind.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1991 Ferrari 348 TB?
Yes, modifications can affect tire fitment on a 1991 Ferrari 348 TB even when the tire sizes themselves look correct. Aftermarket wheels, suspension changes, lowering, alignment changes, or body alterations can change how a 215/50R17 front or 255/45R17 rear tire sits in the wheel opening.
A modified car should be checked for more than just rim diameter. Wheel width, offset, steering clearance, inner-suspension clearance, and fender space all deserve attention before replacement tires are chosen, especially on a low-clearance mid-engine sports car that relies on a specific front-to-rear stagger for proper fitment.
What should I inspect before driving a 1991 Ferrari 348 TB on new tires?
Before driving a 1991 Ferrari 348 TB on new tires, inspect the wheels for damage, confirm the front and rear sizes have not been mixed, and make sure inflation is set correctly for the tires being used. It is also wise to check for suspension wear, brake clearance, and any signs of rubbing.
A car that sits for long periods deserves extra attention before road use. Looking over valve stems, checking for fluid leaks near the tires, verifying even seating on the rims, and taking a short careful test drive can help catch vibration, clearance, or handling issues before the car is driven at speed.
How should tires on a collector 1991 Ferrari 348 TB be maintained?
Tires on a collector 1991 Ferrari 348 TB should be maintained with regular pressure checks, visual inspections, and attention to age-related condition as much as tread depth. Even a lightly driven car can develop sidewall cracking, flat-spotting, air loss, or general aging if it spends long periods parked.
Storage conditions matter almost as much as mileage. Keeping the car away from prolonged heat, direct sunlight, excess moisture, and ozone sources helps protect the tires, and moving the car periodically can reduce set-related issues. Any tire showing bulges, cuts, repeated pressure loss, or severe age cracking deserves close professional evaluation.
