The 2018 Fiat 124 Spider brought Fiat’s long-running Spider name back as a compact rear-drive roadster with modern proportions and an unmistakably open-air focus. It appeals to buyers who want contemporary responsiveness without losing the light, playful character that defines a small two-seat convertible. Tire fitment depends on sub-model, with 195/50R16 on the Classica and 205/45R17 on the Abarth, Lusso, and Red Top Edition, all in radial construction. Available choices range from performance-oriented blackwall radials to a wide whitewall radial in the 16-inch size. The key is matching the exact sub-model and wheel diameter before narrowing the choice by appearance and intended use.
Which Tire Size Is Right for The 2018 Fiat 124 Spider
The 2018 Fiat 124 Spider uses two primary tire sizes, and the correct one depends on the exact sub-model and wheel diameter. Both fitments are radial, but the Classica uses a 16-inch rim while the Abarth, Lusso, and Red Top Edition use a 17-inch rim, so confirming the wheel setup comes first before comparing tire style or product type.
205/45R17 is a metric radial size where 205 identifies section width in millimeters, 45 is the aspect ratio, R denotes radial construction, and 17 is the wheel diameter in inches. On the 2018 Fiat 124 Spider, this size is used on the 17-inch-wheel sub-models and supports the car’s modern roadster character. Available choices in this size center on BFGoodrich performance-focused series, all with blackwall styling. This fitment is the one to evaluate when the car has the larger factory wheel package and the goal is a contemporary handling-oriented presentation.
195/50R16 is a metric radial size with a 195-millimeter section width, a 50-series profile, radial construction, and a 16-inch rim diameter. On the 2018 Fiat 124 Spider, this size belongs to the Classica and should be matched to that 16-inch wheel setup rather than treated as interchangeable with the 17-inch fitment. The available product in this size uses the Silvertown Radial series with a wide whitewall sidewall treatment, giving it a very different visual character from the blackwall 17-inch choices. It is the size to review when wheel diameter and appearance are both central to the decision.
Sub-model fitment matters on the 2018 Fiat 124 Spider because tire size changes with the wheel package. The first step is identifying whether the car is a Classica on 16-inch tires or an Abarth, Lusso, or Red Top Edition on 17-inch tires.
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2018 Fiat 124 Spider Abarth
The 2018 Fiat 124 Spider Abarth uses the 205/45R17 radial fitment. That makes wheel diameter confirmation especially important, then the choice shifts toward selecting among the available blackwall performance-oriented 17-inch tire options.
The 2018 Fiat 124 Spider Classica uses the 195/50R16 radial size rather than the 17-inch fitment found on other sub-models. Tire selection here starts with keeping the 16-inch wheel setup and then deciding whether the available wide whitewall presentation suits the car’s look.
The 2018 Fiat 124 Spider Lusso uses the same 205/45R17 radial size as the Abarth and Red Top Edition. Once that 17-inch fitment is confirmed, the main comparison points are tire series and the shared blackwall appearance of the available choices.
The 2018 Fiat 124 Spider Red Top Edition uses the 205/45R17 radial fitment. That keeps the tire decision focused on matching the 17-inch wheel package first, then comparing the available blackwall radial options within the correct size.
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 2018 Fiat 124 Spider Tires for Sale
Available 2018 Fiat 124 Spider tires are all radial and split cleanly by size: 205/45R17 offers several BFGoodrich blackwall performance series, while 195/50R16 is represented by a BFGoodrich Silvertown Radial with a wide whitewall appearance.
These FAQs focus on 2018 Fiat 124 Spider tire size by sub-model, 16-inch versus 17-inch rim fitment, available radial tire styles, and the practical checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2018 Fiat 124 Spider?
A 2018 Fiat 124 Spider uses either 195/50R16 or 205/45R17, depending on the sub-model. The Classica uses 195/50R16, while the Abarth, Lusso, and Red Top Edition use 205/45R17. Both are radial tire fitments, but they are tied to different wheel diameters.
The important step is matching the tire size to the car’s actual wheel setup rather than choosing by model name alone, especially on a used vehicle. A wheel swap changes the decision immediately, so the tire sidewall size and wheel diameter should be confirmed on the car before selecting a replacement.
What size rim does a 2018 Fiat 124 Spider use?
The 2018 Fiat 124 Spider uses either a 16-inch or 17-inch rim, depending on sub-model. The 195/50R16 fitment is built around a 16-inch rim, and the 205/45R17 fitment is built around a 17-inch rim. The rim diameter is part of the tire size itself.
Rim diameter is the first fitment check because a 16-inch tire cannot mount on a 17-inch wheel, and the reverse is also true. Looking at the current tire sidewall is usually the quickest confirmation, and any aftermarket wheel change should be verified before narrowing the choice by tire series or appearance.
Do all 2018 Fiat 124 Spider sub-models use the same tire size?
No. The 2018 Fiat 124 Spider Classica uses 195/50R16, while the Abarth, Lusso, and Red Top Edition use 205/45R17. That means the car does not share one universal tire size across the full model range, even though all of the primary fitments are radial.
This matters because the first step is identifying the exact sub-model or confirming the wheel size already on the car. On a vehicle that has changed hands, trim badges alone may not tell the whole story, so the safest approach is to verify the tire size currently mounted and compare it with the intended wheel diameter.
Choosing the Right Tire
What should I consider when choosing a 2018 Fiat 124 Spider tire?
Start with the correct primary size for the sub-model and wheel diameter: 195/50R16 for the Classica or 205/45R17 for the Abarth, Lusso, and Red Top Edition. From there, compare the available tire series, sidewall style, and any useful product details such as rim-width compatibility, load figure, or tire weight where those specs are shown.
The right choice depends on how the car is used and how it should look. A 17-inch blackwall performance-style radial gives a different presentation than a 16-inch wide whitewall radial, so appearance matters as much as fitment. Any car with non-stock wheels should have the actual wheel dimensions checked before a final decision.
What sidewall styles are available for 2018 Fiat 124 Spider tires?
Two distinct sidewall styles appear in the available 2018 Fiat 124 Spider tire choices: blackwall and wide whitewall. The 205/45R17 options are blackwall tires, while the 195/50R16 option is a wide whitewall Silvertown Radial. That makes sidewall appearance closely tied to the size and wheel package.
This is less about mixing styles within one size and more about understanding how each fitment presents the car visually. A buyer working with a Classica may be drawn to the whitewall look, while a 17-inch car stays in a more modern blackwall lane. Tire appearance should always come after confirming the correct size for the wheel.
What tire series are available for the 2018 Fiat 124 Spider?
The available tire series for the 2018 Fiat 124 Spider include BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Silvertown Radial. The three g-Force choices appear in 205/45R17, while Silvertown Radial appears in 195/50R16.
Those series differences help separate a modern performance-oriented 17-inch fitment from the 16-inch whitewall option. The practical way to use that information is to confirm size first, then compare the series available within that size rather than trying to cross-shop a 16-inch and 17-inch tire as though they serve the same setup.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Fiat 124 Spider?
A period-style approach on a 2018 Fiat 124 Spider still begins with the correct modern radial size for the exact sub-model. The Classica’s 195/50R16 fitment currently aligns with a Silvertown Radial wide whitewall presentation, while the Abarth, Lusso, and Red Top Edition stay with 205/45R17 blackwall tires in contemporary performance-oriented series.
That choice comes down to the look you want the car to carry rather than any claim of exact factory originality. Buyers pursuing a highly specific restoration standard should compare tire appearance with marque references and photos from the car’s model year, while still keeping wheel diameter and proper size at the center of the decision.
How does tire construction affect the appearance of a restored 2018 Fiat 124 Spider?
On the 2018 Fiat 124 Spider, the primary fitments are already radial, so the appearance question is less about switching from bias-ply to radial and more about sidewall treatment and tire series. A blackwall 205/45R17 gives a distinctly modern look, while the 195/50R16 wide whitewall creates a much more stylized presentation.
That means construction itself is not the visual dividing line here; the size and sidewall are. Anyone restoring or customizing one of these cars should decide early whether the goal is a contemporary roadster stance or a more distinctive show-oriented look, then confirm that the wheel diameter and tire size remain properly matched.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Fiat 124 Spider?
Yes. A 2018 Fiat 124 Spider may have wheel, suspension, or ride-height changes that affect tire selection even when the original sub-model fitment is known. The factory-style sizes are 195/50R16 and 205/45R17, but aftermarket wheel diameter, width, and offset can change what safely clears the fenders and suspension.
That is why the current setup on the car matters more than assumptions based on trim level alone. Any Spider with non-stock wheels should have the wheel diameter and width verified, and clearance should be checked at full steering lock and normal suspension travel before choosing a replacement tire.
What should I inspect before driving a 2018 Fiat 124 Spider on new tires?
Before road use, inspect the wheel condition, confirm the tire size matches the wheel diameter, and make sure the tires are properly seated and inflated. It is also worth checking for uneven wear signals from the previous set, since those can point to alignment or suspension issues that new tires will not correct on their own.
A short local drive is a smart first step after installation. Pay attention to steering feel, vibration, rubbing, or air loss, then recheck pressure once the tires have been in service briefly. On a small roadster like the 2018 Fiat 124 Spider, those basic checks help confirm that the new set is working with the car rather than against it.
How often should tires on a 2018 Fiat 124 Spider be inspected?
Tires on a 2018 Fiat 124 Spider should be inspected regularly, not just when tread looks low. A quick visual check for cuts, bulges, cracking, uneven wear, and pressure loss is worthwhile before longer drives, and a more careful inspection should be part of routine maintenance because sporty roadsters can be sensitive to tire condition.
Low annual mileage does not eliminate the need for inspection. Cars that spend time parked can still develop age-related deterioration or lose pressure gradually, so the sidewalls and tread should be checked even when the car has seen little recent use. Consistent pressure and condition checks are just as important as choosing the correct size.
