The 2017 Alfa Romeo Giulia arrived as a serious sport sedan, bringing Alfa Romeo back into the modern compact luxury performance conversation with rear-drive-based proportions and handling-focused engineering. That character makes tire selection especially important, because this Giulia range uses several different radial sizes depending on trim and wheel package, including both 17-inch, 18-inch, and staggered 19-inch fitments. Available choices center on modern blackwall performance radials from BFGoodrich and Nitto across several g-Force and NT555 G2 series options. The real priority is matching the exact size to the specific Giulia configuration before comparing tire series, wheel compatibility, and intended street use.
Which Tire Size Is Right for The 2017 Alfa Romeo Giulia
The 2017 Alfa Romeo Giulia uses six primary tire sizes, and the right one depends on the exact sub-model and wheel setup. Some versions use 17-inch or 18-inch square fitments, while others use 19-inch front and rear sizes with a staggered layout. Before choosing a tire, confirm whether the car is a Base, Ti, Ti w/Sport Pkg., or Quadrifoglio, and then verify the actual rim diameter on the vehicle.
225/45R18 is a modern metric radial size: 225 identifies the nominal section width in millimeters, 45 is the aspect ratio, R indicates radial construction, and 18 is the wheel diameter in inches. On the 2017 Alfa Romeo Giulia, this size serves as one of the square-fitment options, making it a straightforward choice when the car wears 18-inch wheels. Available options include BFGoodrich and Nitto blackwall performance tires in g-Force Comp 2 AS, g-Force Sport Comp 2, NT555 G2, and g-Force Phenom T/A series. It is a practical size to evaluate when preserving the car's 18-inch setup and comparing all-season versus more performance-oriented product character.
225/50R17 follows the same modern metric radial format, with a 225-millimeter nominal width, a 50-series profile, radial construction, and a 17-inch rim diameter. This size applies to 2017 Alfa Romeo Giulia Base configurations equipped with 17-inch wheels, so it is tied closely to wheel diameter confirmation before any product comparison begins. BFGoodrich and Nitto offer blackwall options in this size, including g-Force Comp 2 AS, g-Force Sport Comp 2, and NT555 G2 lines. It is the size to focus on when the goal is keeping the Base model on its 17-inch wheel package rather than moving into larger-diameter fitments.
245/35R19 is a modern metric radial size with a 245-millimeter nominal width, a 35-series profile, and a 19-inch rim requirement. On the 2017 Alfa Romeo Giulia, this size is used at the front of the Quadrifoglio's staggered arrangement, so it should be treated as a position-specific fitment rather than a universal Giulia size. Blackwall choices are available from BFGoodrich and Nitto in g-Force Comp 2 AS, NT555 G2, and g-Force Phenom T/A series. It is the correct front-size reference when maintaining the Quadrifoglio's intended front-to-rear sizing relationship.
285/30R19 is a modern metric radial size that uses a 285-millimeter nominal width, a low 30-series profile, and a 19-inch wheel diameter. On the 2017 Alfa Romeo Giulia, it appears as the rear tire size for the Quadrifoglio, making it part of a staggered front-and-rear setup rather than a square arrangement. Its main practical meaning is that rear wheel width, tire clearance, and maintaining the proper relationship with the matching front size all matter before substitution. This is the size to confirm when the car is a Quadrifoglio and still retains its 19-inch rear wheel configuration.
225/40R19 is a modern metric radial size with a 225-millimeter nominal width, a 40-series sidewall profile, and a 19-inch rim diameter. On the 2017 Alfa Romeo Giulia, this size is used on Ti configurations and at the front of Ti w/Sport Pkg. staggered setups, so it can appear in more than one trim context. BFGoodrich offers blackwall choices here in the g-Force Comp 2 AS and g-Force Phenom T/A series. It is the size to evaluate when the car has 19-inch front fitment but is not using the wider Quadrifoglio front specification.
255/35R19 uses the modern metric radial format, pairing a 255-millimeter nominal width and 35-series profile with a 19-inch wheel. On the 2017 Alfa Romeo Giulia, it serves as the rear size for the Ti w/Sport Pkg. staggered configuration, so it should be matched to the correct front fitment rather than selected in isolation. BFGoodrich offers blackwall options in g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. It becomes the key rear-size choice when preserving the Ti Sport Package's staggered appearance and wheel relationship.
Tire fitment on the 2017 Alfa Romeo Giulia varies by sub-model, wheel package, and in some cases front-versus-rear position. Checking the exact trim matters because this platform uses both square and staggered setups across 17-inch, 18-inch, and 19-inch applications.
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2017 Alfa Romeo Giulia Base
The 2017 Alfa Romeo Giulia Base uses either a 225/50R17 or 225/45R18 radial, depending on which wheel package is on the car. That makes wheel-diameter confirmation the first step, followed by comparing available blackwall performance tire series within the correct size.
The 2017 Alfa Romeo Giulia Quadrifoglio uses 245/35R19 at the front as part of a staggered radial setup. Front tire selection should stay tied to the matching rear specification so the car keeps the intended front-to-rear relationship on its 19-inch wheels.
The 2017 Alfa Romeo Giulia Quadrifoglio uses 285/30R19 at the rear in its staggered radial arrangement. Rear replacement should be approached as part of a matched setup, with attention to wheel width and the need to pair correctly with the front 19-inch tire size.
The 2017 Alfa Romeo Giulia Ti can use either 225/40R19 or 225/45R18 radials, depending on the wheel configuration. Tire choice starts with confirming whether the car is on 18-inch or 19-inch rims, then narrowing selection by the available performance series in that exact size.
The 2017 Alfa Romeo Giulia Ti w/Sport Pkg. uses 225/40R19 at the front. That front size should be selected with the matching rear fitment in mind, especially when maintaining the car's staggered stance and overall wheel-and-tire balance.
The 2017 Alfa Romeo Giulia Ti w/Sport Pkg. uses 255/35R19 at the rear. Choosing this size correctly means preserving the rear position-specific fitment and confirming the car still wears the proper staggered 19-inch wheel setup.
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 2017 Alfa Romeo Giulia Tires for Sale
Available 2017 Alfa Romeo Giulia tires center on modern blackwall radial performance options from BFGoodrich and Nitto. Depending on size, the product grid includes g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2 series choices for 17-inch, 18-inch, and 19-inch fitments.
Common 2017 Alfa Romeo Giulia tire questions usually come down to exact trim identification, wheel diameter, staggered versus square fitment, and how to compare the available radial performance tire options. The answers below focus on size, selection, and practical checks before road use.
Tire Size & Fitment
What tire size fits a 2017 Alfa Romeo Giulia?
The 2017 Alfa Romeo Giulia uses several tire sizes depending on trim and wheel package: 225/50R17, 225/45R18, 225/40R19, 245/35R19, 255/35R19, and 285/30R19. All are radial sizes, and some apply to square setups while others are used only at the front or rear of staggered configurations.
The right choice starts with identifying the exact Giulia sub-model and then checking the wheel diameter actually on the car. A Base or Ti may have more than one possible size, while Quadrifoglio and Ti w/Sport Pkg. fitments can depend on front-versus-rear position as well.
What size rim does a 2017 Alfa Romeo Giulia use?
A 2017 Alfa Romeo Giulia can use 17-inch, 18-inch, or 19-inch rims, depending on the trim and tire size. The 225/50R17 size uses a 17-inch rim, 225/45R18 uses an 18-inch rim, and the 225/40R19, 245/35R19, 255/35R19, and 285/30R19 sizes use 19-inch rims.
Rim diameter is the first thing to verify before comparing any tire options, because a correct width and profile still will not work on the wrong wheel diameter. On cars with staggered 19-inch setups, it is also important to confirm whether the tire being replaced is for the front or rear axle.
Why does the 2017 Alfa Romeo Giulia have more than one tire size?
The 2017 Alfa Romeo Giulia has more than one tire size because different trims and wheel packages use different fitments. Base and Ti models can use alternate wheel diameters, while Quadrifoglio and Ti w/Sport Pkg. configurations introduce staggered front and rear sizing on 19-inch wheels.
That means tire selection is tied to the exact configuration of the car rather than the model name alone. Matching the correct size helps preserve the intended wheel relationship, and it also avoids confusion when a Giulia has optional wheels or a previous owner has changed the setup.
Choosing the Right Tire
What should I consider when choosing a tire for a 2017 Alfa Romeo Giulia?
Start with the exact tire size, wheel diameter, and whether the car uses a square or staggered setup. Every 2017 Alfa Romeo Giulia fitment here is radial, but the available products vary by size, brand, tire series, load specification, and approved rim-width range.
From there, narrow the choice by how the car is driven and what kind of tire character you want. A Giulia used mainly for street driving may lead to a different series choice than one where sharper performance feel matters more, but the tire still needs to match the wheel and position correctly.
What sidewall styles are available for 2017 Alfa Romeo Giulia tires?
The available tires for the 2017 Alfa Romeo Giulia use a blackwall sidewall style across the supported product range. That creates a clean modern appearance that suits the Giulia's sport-sedan character without adding raised white letters, whitewalls, or other vintage-style sidewall treatments.
Since sidewall style does not vary here, the real visual differences come from wheel size and the tire series chosen in the correct fitment. A 17-inch or 18-inch square setup presents differently than a low-profile staggered 19-inch arrangement, so overall appearance still depends heavily on the configuration.
What brands offer tires for the 2017 Alfa Romeo Giulia?
BFGoodrich and Nitto both offer tires for selected 2017 Alfa Romeo Giulia sizes. Depending on the fitment, the choices include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2 products in blackwall radial construction.
Brand choice should come after confirming the exact size and wheel arrangement on the car. Not every size has the same assortment, so the useful comparison is usually within the correct fitment first, then across the available series, rim-width compatibility, and any load details shown for that size.
Restoration & Appearance
Which tire should I choose for a period-style 2017 Alfa Romeo Giulia?
A period-style approach on a 2017 Alfa Romeo Giulia usually means staying with the correct original-size format for the exact trim and wheel package rather than trying to create a vintage look that the car never used. The supported fitments are all modern metric radial sizes on 17-inch, 18-inch, or 19-inch wheels.
Appearance is shaped mostly by wheel diameter, sidewall profile, and whether the car uses a square or staggered setup. Keeping those elements true to the car's configuration will preserve a more authentic presentation than changing to a different size simply because the tire itself looks similar on paper.
Does correct tire fitment matter for a 2017 Alfa Romeo Giulia restoration?
Correct tire fitment matters because the 2017 Alfa Romeo Giulia uses modern, trim-specific radial sizes rather than one universal setup. A restoration-minded owner should keep the proper diameter, width, and front-or-rear placement aligned with the actual configuration of the car.
That is especially important on staggered 19-inch applications, where the visual stance and wheel-to-tire relationship are part of the car's character. When exact originality matters beyond size alone, vehicle records, marque references, and wheel documentation are useful for confirming the intended setup before purchase.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 Alfa Romeo Giulia?
Yes. A 2017 Alfa Romeo Giulia can be sensitive to wheel and tire changes because several trims already use different diameters and, in some cases, staggered front and rear sizing. Aftermarket wheels, altered offsets, suspension changes, or lowering can change clearance even when the tire size itself appears familiar.
That makes it smart to inspect the actual wheel setup before replacing tires, especially on a used Giulia. Checking rim diameter, wheel width, and front-versus-rear placement helps prevent choosing a tire that matches the badge on the trunk but not the configuration currently installed on the car.
What should I inspect before driving a 2017 Alfa Romeo Giulia on new tires?
Before road use, inspect tire pressure, lug hardware, tread seating, and general clearance at the fender, suspension, and steering components. On a 2017 Alfa Romeo Giulia with staggered fitment, make sure the front and rear tires are in the correct positions and that the wheel diameters match the intended sizes.
It is also worth checking the older parts around the new tires, including alignment condition and any signs of rubbing from previous fitment changes. A short test drive followed by a second visual inspection can reveal issues early, particularly on low-profile 18-inch and 19-inch applications.
What should I check before a longer drive in a 2017 Alfa Romeo Giulia?
Before a longer drive, confirm that all four tires are the correct size for the car's exact setup, properly inflated, and free of cuts, bulges, cracking, or abnormal wear. On a 2017 Alfa Romeo Giulia with a staggered arrangement, double-check that front and rear positions have not been mixed.
A longer trip also puts more importance on wheel condition and steady air retention, so it helps to look for damage and recheck pressures when the tires are cold. On cars that sit for stretches, include an age-and-condition review rather than relying on tread depth alone.
