The 2004 Maserati Coupe sits in the modern grand touring tradition, blending Italian styling with a front-engine performance layout that rewards the right tire setup. On this car, tire selection is less about vintage construction choices and more about matching the correct staggered 18-inch radial sizes to the exact front and rear application, including the winter front fitment used on certain GT configurations. Available choices center on blackwall performance radials from BFGoodrich and Nitto, with distinctions in tire series and sizing details rather than period-style sidewall treatments. The key is confirming the exact sub-model and axle position before comparing product options, rim-width compatibility, and intended road use.
Which Tire Size Is Right for The 2004 Maserati Coupe
The 2004 Maserati Coupe uses three primary tire sizes, all in radial construction on 18-inch rims. Fitment varies by sub-model and by front versus rear position, so the first step is identifying whether the car is a Cambiocorsa or GT and whether it is using the summer or winter front fitment. Once that is clear, the decision shifts to choosing among the available performance-oriented blackwall radial options in the correct size.
Fit(s): Cambiocorsa Front and GT (Summer Tires) Front
Construction: Radial|Rim: 18 in
235/40R18 is a metric radial size in which 235 refers to nominal section width in millimeters, 40 is the aspect ratio, and 18 is the rim diameter in inches. On the 2004 Maserati Coupe, this size serves as a front fitment on Cambiocorsa and GT summer-tire applications, reflecting the car's staggered radial setup. Available choices include BFGoodrich and Nitto products in series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2, all with blackwall styling. This is the size to evaluate when preserving the intended front-end fitment on a summer setup.
265/35R18 is a metric radial size where 265 indicates nominal section width in millimeters, 35 is the aspect ratio, and 18 identifies the wheel diameter. On the 2004 Maserati Coupe, it is the rear tire size across Cambiocorsa, GT summer, and GT winter configurations, making it the shared rear fitment in the covered applications. BFGoodrich and Nitto both offer this size in blackwall performance series including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This size matters when matching the car's wider rear stance and maintaining the proper front-to-rear relationship.
225/40R18 is a metric radial size with a 225-millimeter nominal section width, a 40-series profile, and an 18-inch rim diameter. On the 2004 Maserati Coupe, this size appears as the front winter-tire fitment for the GT, so it is not the general front size for every configuration. Product choices again center on BFGoodrich and Nitto blackwall radials, with series including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This is the size to consider only after confirming that the car is using the GT winter front setup.
Sub-model fitment on the 2004 Maserati Coupe is straightforward once the exact configuration and axle position are confirmed. Front tire size changes between summer and winter GT applications, while the rear fitment remains consistent, so checking the specific sub-model matters before comparing tires.
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2004 Maserati Coupe Cambiocorsa Front
The Cambiocorsa front application uses the 235/40R18 radial size on an 18-inch rim. Tire selection here is about choosing the right performance-oriented blackwall radial within that front size while keeping the staggered setup matched to the rear.
The Cambiocorsa rear application uses 265/35R18 radial tires. That places the focus on rear-specific fitment, including wheel-width compatibility and maintaining the intended front-to-rear size relationship rather than treating all 18-inch tires as interchangeable.
The GT with summer tires uses 235/40R18 on the front. That gives the owner a clear path to compare available blackwall radial tire series in the correct front size without confusing it with the narrower winter front setup.
The GT summer rear fitment uses 265/35R18, matching the rear size used on the other covered configurations. The practical decision is choosing the tire series and brand that suit the car's use while keeping the proper staggered rear fitment.
The GT winter front application uses 225/40R18 rather than the 235/40R18 summer front size. That distinction makes sub-model confirmation especially important, since the front tire choice depends on whether the car is on the winter setup.
The GT winter rear fitment remains 265/35R18. With the rear size unchanged, the main selection task is pairing the correct rear tire with the winter front fitment and confirming the wheel setup before installation.
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 2004 Maserati Coupe Tires for Sale
Available 18-inch radial choices for the 2004 Maserati Coupe come from BFGoodrich and Nitto, with blackwall styling throughout and several performance-oriented series to compare. The main differences across the product grid are tire size, tire series, load specification where stated, and rim-width compatibility by application.
These FAQs focus on the exact tire sizes used on the 2004 Maserati Coupe, how front and rear fitment differs by sub-model, and what to compare when selecting among the available 18-inch radial tires.
Tire Size & Fitment
What tire size fits a 2004 Maserati Coupe?
The 2004 Maserati Coupe uses three tire sizes: 235/40R18, 265/35R18, and 225/40R18. Cambiocorsa models use 235/40R18 in front and 265/35R18 in the rear, while GT summer applications use the same combination. GT winter applications use 225/40R18 in front and 265/35R18 in the rear.
That means the right answer depends on both sub-model and axle position, not just the year and model name. The rear fitment stays consistent, but the front size changes between GT summer and GT winter setups. Checking the existing tire placard, wheel setup, and front-versus-rear sizing before ordering helps avoid mixing a winter front size into a summer application.
What size rim does a 2004 Maserati Coupe use?
All three primary tire sizes used on the 2004 Maserati Coupe are built around an 18-inch rim diameter. The front sizes are 235/40R18 or 225/40R18 depending on configuration, and the rear size is 265/35R18. In each case, the final number in the size code confirms the 18-inch wheel diameter.
Wheel diameter is only part of the fitment picture, because wheel width also matters with these low-profile radial sizes. Product options for the front and rear sizes show different rim-width ranges, so the actual wheel dimensions should be confirmed before choosing a tire. That is especially important if the car has replacement wheels or is using a different seasonal setup than expected.
Why does the 2004 Maserati Coupe have more than one tire size?
The 2004 Maserati Coupe has more than one tire size because it uses a staggered setup and because front fitment changes between certain configurations. The rear size remains 265/35R18, while the front is either 235/40R18 for Cambiocorsa and GT summer applications or 225/40R18 for GT winter applications.
That variation means buyers should not assume that any front 18-inch tire used on one Coupe configuration belongs on every other one. The first step is confirming the exact setup on the car, including whether it is being matched to a summer or winter front arrangement. Once that is clear, the correct tire can be chosen by size, wheel-width range, and intended use.
Choosing the Right Tire
What should I consider when choosing a 2004 Maserati Coupe tire?
Start with the exact tire size required for the car's front or rear position, then confirm that the tire matches the 18-inch wheel and the appropriate wheel-width range. The 2004 Maserati Coupe uses low-profile radial sizes, so a front 235/40R18, front 225/40R18, and rear 265/35R18 each need to be matched carefully to the vehicle's actual configuration.
After size and wheel compatibility are confirmed, compare the available tire series, brand options, and any stated load specifications that matter to your use. A car kept close to its intended summer setup may call for a different choice than one being maintained around a winter front arrangement. The goal is a matched, correctly sized set rather than simply choosing by appearance or brand name.
What brands offer tires for the 2004 Maserati Coupe?
BFGoodrich and Nitto offer tires in the sizes used on the 2004 Maserati Coupe. Across the three fitments, BFGoodrich appears in g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series, while Nitto offers the NT555 G2. All of these options are radial blackwall tires sized for 18-inch wheels.
Brand choice should come after confirming the correct axle position and size, since the Coupe uses different front fitments in different configurations. Once the right size is established, compare the individual tire series, wheel-width compatibility, and any load details shown for the products in that size. That approach keeps the selection focused on fitment first and brand second.
What tire series are available for the 2004 Maserati Coupe?
The 2004 Maserati Coupe is covered by several radial tire series, including BFGoodrich g-Force Comp 2 AS, BFGoodrich g-Force Sport Comp 2, BFGoodrich g-Force Phenom T/A, and Nitto NT555 G2. These series appear across the front and rear fitments used on the car. Each one stays within the blackwall performance-tire theme rather than offering multiple sidewall treatments.
Series choice becomes meaningful after the correct size is locked in, because the front and rear positions are not interchangeable. Comparing the series within one tire size lets you focus on the practical differences available in that fitment, such as wheel-width range and specification details. It also helps keep the car's staggered setup consistent rather than mixing unrelated sizes or constructions.
Restoration & Appearance
Which tire should I choose for a period-style 2004 Maserati Coupe?
A period-style approach for a 2004 Maserati Coupe starts with keeping the correct staggered 18-inch radial sizing for the exact configuration. That means 235/40R18 front and 265/35R18 rear for Cambiocorsa and GT summer applications, or 225/40R18 front with 265/35R18 rear for the GT winter setup. The available products all use blackwall styling, which suits the modern grand touring character of the car.
The appearance decision is less about whitewalls or vintage sidewall treatments and more about preserving the proper stance and proportion through the correct low-profile sizes. A car being kept close to its original presentation should avoid casual size substitutions that change the front setup. Exact originality questions are best checked against marque-specific references if the car is being restored to a very precise standard.
Does correct tire fitment matter for a 2004 Maserati Coupe restoration?
Correct tire fitment matters on a 2004 Maserati Coupe because the car's appearance and stance depend heavily on its staggered 18-inch radial setup. Using the proper front and rear sizes helps maintain the intended relationship between wheel opening, tire profile, and rear width. That is especially important when distinguishing between the standard front fitment and the narrower GT winter front setup.
Restoration-minded owners should treat size, axle position, and wheel compatibility as the foundation before comparing brands or tire series. Even on a modern collector car, an incorrect front size can change the overall presentation noticeably. Verifying what is actually on the car today is worthwhile, since replacement wheels or past tire changes can move it away from the proper configuration.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2004 Maserati Coupe?
Yes, modifications can affect tire fitment on a 2004 Maserati Coupe even when the tire size appears close to stock. Changes to wheel width, offset, suspension height, alignment settings, or body clearance can alter how a 235/40R18, 225/40R18, or 265/35R18 tire sits on the car. That matters more with low-profile radial tires than with taller, more forgiving fitments.
A Coupe with aftermarket wheels should have actual wheel dimensions checked before a tire is chosen from the standard size range. Clearance at the fender edge, inner wheelhouse, and steering range deserves attention, especially at the front where fitment varies by configuration. Small setup changes can matter on this type of application, so the tire should match the car as it sits now.
What should I inspect before driving a 2004 Maserati Coupe on new tires?
Before driving a 2004 Maserati Coupe on new tires, inspect wheel condition, verify the front and rear sizes are mounted in the correct positions, and confirm inflation is appropriate for the installed tires. It is also wise to check for uneven wear, valve-stem condition, and any signs of rubbing or interference at lock and through suspension movement.
A short road test followed by a second visual inspection can catch issues that are easy to miss on the lift. Pay attention to vibration, steering feel, and any contact marks that appear after the first few miles. Since the Coupe uses a staggered setup, an error in mounting or rotating positions can create problems even when every tire is technically the right diameter.
How should tires on a collector 2004 Maserati Coupe be maintained?
Tires on a collector 2004 Maserati Coupe should be maintained with regular pressure checks, routine visual inspection, and careful attention to age-related deterioration. Even on a low-mile car, radial tires can develop cracking, flat spotting, air loss, or internal aging long before tread wear becomes the issue. The front and rear tires should also be checked as a matched staggered set rather than as isolated pieces.
Storage conditions matter on a car that is driven occasionally, so keeping it away from prolonged heat, direct sunlight, moisture, and ozone sources helps preserve tire condition. It also helps to move the car periodically and inspect tread and sidewalls before longer drives. Any sign of bulges, cuts, persistent vibration, or repeated pressure loss deserves prompt professional evaluation.
