The 1991 Ferrari F40 sits at a pivotal moment in supercar history, combining raw turbocharged performance with a stripped, purpose-built character that still feels closer to a racing machine than a grand tourer. Its tire fitment reflects that focus, with staggered 17-inch radial sizes and a front setup that varies by tire brand pairing. Front fitment appears as either 235/45R17 or 245/40R17, while the rear uses a massive 335/35R17. Available choices center on modern blackwall radial performance tires from BFGoodrich, Nitto, and Michelin. For an F40 owner, the real priority is confirming the exact front setup before matching the tire's dimensions, rim width, and intended road use.
Which Tire Size Is Right for The 1991 Ferrari F40
The 1991 Ferrari F40 uses three primary tire sizes, but the decision is really about identifying the correct front fitment and confirming the staggered setup already on the car. All of these are metric radial sizes on 17-inch rims, and the rear remains 335/35R17 while the front appears as either 235/45R17 or 245/40R17 depending on the tire pairing. Before choosing a tire, verify the exact front size and wheel width on the vehicle.
Fit(s): (Goodyear Tires) Front and (Michelin Tires) Front
Construction: Radial|Rim: 17 in
In 235/45R17, the 235 is the section width in millimeters, 45 is the aspect ratio, R identifies radial construction, and 17 is the rim diameter in inches. On the 1991 Ferrari F40, this size serves as one of the front tire fitments and is part of the car's staggered performance-oriented setup. Available choices include BFGoodrich and Nitto blackwall radials across g-Force Sport Comp 2, g-Force Comp 2 AS, and NT555 G2 lines. This is the size to evaluate when the car is set up around the narrower of the two documented front fitments.
In 335/35R17, the 335 denotes a very wide section width in millimeters, 35 is the aspect ratio, R means radial construction, and 17 identifies the wheel diameter. On the 1991 Ferrari F40, this is the rear tire size across the covered fitments, underscoring the car's extreme stagger and rear-drive balance. The available product here is a Michelin Pilot Sport PS2 blackwall radial built for a wide 17-inch wheel. This size should be matched carefully to the rear wheel specification rather than treated as interchangeable with other 17-inch performance tires.
In 245/40R17, the 245 is the tire's nominal section width in millimeters, 40 is the aspect ratio, R indicates radial construction, and 17 is the wheel diameter in inches. For the 1991 Ferrari F40, this is the alternate front tire fitment associated with the Pirelli-tire setup, while the rear remains 335/35R17. Available blackwall options come from BFGoodrich in g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. This size deserves careful review because it changes the front tire dimensions compared with the 235/45R17 front arrangement.
The 1991 Ferrari F40 fitment is defined by front and rear positions as well as the tire brand pairing on the car. Checking the exact setup matters here because the rear size stays the same, but the front size changes between the Goodyear or Michelin arrangements and the Pirelli arrangement.
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1991 Ferrari F40 (Goodyear Tires) Front
The Goodyear-tire front setup uses 235/45R17 radial tires on the F40. That makes front-size confirmation especially important before replacement, since this pairing differs from the alternate 245/40R17 front arrangement and should be matched to the wheel already in place.
The Goodyear-tire rear setup uses the F40's 335/35R17 radial rear size. Tire selection at this position centers on preserving the correct staggered relationship with the front and confirming the rear wheel width before choosing among available rear options.
The Michelin-tire front setup also uses 235/45R17 radial tires. For replacement planning, that means the Michelin-front arrangement shares the same front size as the Goodyear-front arrangement, so the key task is matching the existing front fitment rather than assuming every F40 uses the wider front size.
The Michelin-tire rear setup uses 335/35R17 radial tires, the same rear size seen across the covered F40 configurations. Selection here is straightforward on size, but the rear tire still needs to be evaluated against wheel width and the front tire size already fitted to the car.
The Pirelli-tire front setup uses 245/40R17 radial tires rather than 235/45R17. That distinction matters because front tire dimensions change with this arrangement, so replacement should start with the actual front wheel and tire setup on the car instead of relying on a single universal F40 front size.
The Pirelli-tire rear setup uses the same 335/35R17 radial rear size found on the other covered F40 configurations. Rear replacement is therefore consistent by size, but it still needs to be considered as part of the complete staggered setup so the front and rear combination remains properly matched.
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 F40 Tires for Sale
Available 1991 Ferrari F40 tires focus on blackwall 17-inch radial performance choices. Front options vary between BFGoodrich and Nitto in several g-Force and NT555 G2 series, while the 335/35R17 rear fitment is represented by Michelin's Pilot Sport PS2.
These FAQs focus on the exact tire sizes used on the 1991 Ferrari F40, how the front and rear fitments differ, and what to check when choosing among the available radial performance tires for a car with such a specialized staggered setup.
Tire Size & Fitment
What tire size fits a 1991 Ferrari F40?
The 1991 Ferrari F40 uses a staggered 17-inch radial setup. Front fitment appears as either 235/45R17 or 245/40R17, while the rear size is 335/35R17. The 235/45R17 front is tied to Goodyear and Michelin tire pairings, and the 245/40R17 front is tied to the Pirelli tire pairing.
That means there is not one universal front size for every 1991 F40. The safest starting point is to confirm the exact front size already on the car, then match it to the rear 335/35R17 setup while checking wheel width and clearance before replacing only one axle or moving to a different front specification.
What size rim does a 1991 Ferrari F40 use?
The covered tire fitments for the 1991 Ferrari F40 all use 17-inch rims. That includes both front size options, 235/45R17 and 245/40R17, as well as the rear 335/35R17 size, so rim diameter stays consistent even though the front tire size can vary.
Rim diameter is only part of the fitment picture on an F40. A 17-inch wheel still needs the correct width for the tire being considered, especially with the very wide rear size, so replacement decisions should account for the actual wheel on the car rather than assuming every 17-inch performance wheel is suitable.
Why does the 1991 Ferrari F40 have more than one tire size?
The 1991 Ferrari F40 has more than one tire size because it uses a staggered front-and-rear setup, and the front fitment itself varies by tire pairing. The rear remains 335/35R17, while the front appears as either 235/45R17 for Goodyear and Michelin pairings or 245/40R17 for the Pirelli pairing.
For the owner, that means the first step is not choosing a brand but confirming which front specification the car uses now. Once that is established, the tire search becomes much clearer, since the available options can be narrowed by front size, rear size, wheel width, and whether the goal is simple road use or a more restoration-minded presentation.
Choosing the Right Tire
What should I consider when choosing a 1991 Ferrari F40 tire?
Start with the exact size and position on the car, because the 1991 Ferrari F40 uses a specialized staggered setup with two possible front sizes and one rear size. Every covered option is a radial on a 17-inch rim, so the key variables become front fitment, rear fitment, rim-width compatibility, and the intended use of the car.
Beyond size, compare the tire's series, load information where stated, and wheel-width range for the specific product you are considering. An F40 is sensitive to setup changes, so choosing a tire should involve matching the existing wheel arrangement and replacing with a front-and-rear combination that keeps the car's dimensions and balance consistent.
What sidewall styles are available for 1991 Ferrari F40 tires?
The available tires for the 1991 Ferrari F40 use a blackwall sidewall style across the covered front and rear sizes. That includes the BFGoodrich, Nitto, and Michelin options offered in 235/45R17, 245/40R17, and 335/35R17 for this application.
Because the assortment stays with blackwall construction, the appearance decision is less about decorative sidewall treatment and more about matching the correct front size, rear size, and tire series. On a car as visually distinctive as the F40, keeping the staggered proportions and a clean blackwall presentation usually matters more than chasing cosmetic variation.
What brands offer tires for the 1991 Ferrari F40?
Available tires for the 1991 Ferrari F40 come from BFGoodrich, Nitto, and Michelin. BFGoodrich appears in both front sizes through several g-Force series, Nitto is available in 235/45R17 through the NT555 G2 line, and Michelin covers the 335/35R17 rear fitment with the Pilot Sport PS2.
Those brand differences matter mainly because they shape the choices at each end of the car rather than because one brand should automatically be preferred. The practical comparison is which brand offers the needed size, the correct wheel-width compatibility, and the product character that best suits how the F40 will actually be driven and maintained.
Restoration & Appearance
Which tire should I choose for a period-style 1991 Ferrari F40?
A period-style 1991 Ferrari F40 tire choice starts with preserving the car's proper staggered 17-inch radial setup and matching the correct front size already associated with the vehicle. That means staying with either the 235/45R17 front and 335/35R17 rear combination or the 245/40R17 front and 335/35R17 rear combination, depending on the tire pairing being followed.
Appearance should be judged alongside fitment, since the available tires are modern blackwall radials rather than decorative whitewall or stripe designs. When exact historical presentation matters, compare the car's existing wheel-and-tire specification with marque-specific documentation so the final choice supports both the F40's visual character and its intended driving use.
Does correct tire fitment matter for a 1991 Ferrari F40 restoration?
Correct tire fitment matters a great deal on a 1991 Ferrari F40 because the car's stance, visual balance, and front-to-rear proportion depend on a very specific staggered radial arrangement. Using the wrong front size or an unsuitable wheel width can change both appearance and how faithfully the car reflects its established setup.
Restoration-minded owners should treat tire choice as part of the overall specification rather than an isolated consumable purchase. Confirm the front and rear sizes on the car, verify the wheel dimensions, and keep the tire presentation consistent across the axle pair so the finished result looks intentional instead of mismatched.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1991 Ferrari F40?
Yes, modifications can affect tire fitment on a 1991 Ferrari F40 even when the wheel diameter remains 17 inches. Changes such as aftermarket wheels, altered wheel widths, suspension adjustments, ride-height changes, or body modifications can all influence whether a 235/45R17, 245/40R17, or 335/35R17 tire still has the proper clearance.
An owner should confirm more than the size molded on the sidewall before replacing tires on a modified car. Check the actual wheel width, inspect steering and fender clearance, and compare the existing front-and-rear setup carefully so a change made by a previous owner does not lead to an incorrect replacement choice.
What should I inspect before driving a 1991 Ferrari F40 on new tires?
Before driving a 1991 Ferrari F40 on new tires, inspect the wheel condition, verify the front and rear sizes are correctly matched, and confirm that the tire is properly seated and inflated. It is also wise to look over the suspension, steering components, and alignment condition so the new tires are not immediately compromised by an underlying chassis issue.
A careful walk-around matters on a car with this much tire stagger and width. Look for any signs of rubbing, check that the tires clear the body and suspension through steering movement, and make sure there are no cuts, bulges, or mounting issues before putting meaningful road miles on the car.
How should tires on a collector 1991 Ferrari F40 be maintained?
Tires on a collector 1991 Ferrari F40 should be checked regularly for air loss, tread wear, sidewall cracking, bulges, and any changes in shape that can develop when the car spends long periods parked. Because the F40 is often driven sparingly, tire condition matters just as much as remaining tread depth.
Storage habits also play a major role in preserving tire condition. Keep the car away from prolonged sunlight, excess heat, moisture, and ozone sources, maintain proper inflation, and inspect the tires before each outing so an aging set does not get mistaken for a road-ready set simply because it still looks lightly used.
