The 2018 Kia Forte sits in the compact-car segment where trim level and wheel package make a real difference in tire selection. For buyers replacing tires today, the important detail is that this model year uses three different radial sizes depending on sub-model: 195/65R15, 205/55R16, or 215/45R17. That means the first step is matching the tire to the exact LX, S, or EX configuration rather than assuming one size fits every Forte. Available choices range from mainstream blackwall performance-oriented radials to a wide whitewall option in 205/55R16, so the right pick depends on wheel diameter, driving priorities, and the appearance you want to keep.
Which Tire Size Is Right for The 2018 Kia Forte
The 2018 Kia Forte uses three primary tire sizes, and they vary by sub-model and wheel diameter. All three are radial fitments, but the right choice depends first on identifying whether the car is an LX, S, or EX and confirming whether it rides on a 15-inch, 16-inch, or 17-inch wheel. Once that is settled, the real decision becomes tire character, brand, and sidewall style within the correct size.
A 215/45R17 tire uses a 215-millimeter section width, a 45-series aspect ratio, radial construction, and a 17-inch rim. On the 2018 Kia Forte, this size belongs to the EX and gives the buyer the lowest-profile fitment used across the model range. Available choices center on BFGoodrich blackwall radials in the g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A lines. This size is the one to evaluate if the car has the EX wheel package and you want to preserve its intended wheel-and-tire balance without stepping into a different rim diameter.
A 195/65R15 tire measures 195 millimeters wide, uses a 65-series profile, radial construction, and mounts on a 15-inch rim. For the 2018 Kia Forte, this is the LX fitment and represents the tallest sidewall and smallest wheel diameter among the three primary sizes. Its role is straightforward: match the correct LX wheel setup first, then compare tires that suit everyday road use and the vehicle's original overall stance. Buyers should confirm that the car still carries its 15-inch wheels before selecting this size, especially if a previous owner changed wheels or trim-specific hardware.
A 205/55R16 tire uses a 205-millimeter section width, a 55-series profile, radial construction, and a 16-inch rim. On the 2018 Kia Forte, this size fits the S sub-model and sits between the LX and EX fitments in wheel diameter and profile. Product choice is broader here, with BFGoodrich, Michelin, and American Classic offerings, mostly in blackwall form plus a wide whitewall option for a more distinctive look. This is the size to compare when the car is an S and you want to balance correct wheel fitment with a choice of tire series and appearance.
Tire fitment changes across the 2018 Kia Forte lineup, so checking the exact sub-model is the most important first step. LX, S, and EX each use a different radial size and a different wheel diameter, which affects every replacement decision that follows.
1
2018 Kia Forte EX
The 2018 Kia Forte EX uses the 215/45R17 radial fitment, tied to a 17-inch wheel package. Tire selection here centers on staying with the correct low-profile size and comparing the available blackwall performance-oriented choices built around that wheel diameter.
The 2018 Kia Forte LX uses the 195/65R15 radial size on a 15-inch wheel. The key for this sub-model is confirming that the car still has its LX wheel setup before replacing tires, especially if wheels have ever been changed.
The 2018 Kia Forte S uses the 205/55R16 radial fitment on a 16-inch wheel. This sub-model offers the widest visible mix of product character, including blackwall radial choices and a wide whitewall alternative for buyers who want a different visual presentation.
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 Kia Forte Tires for Sale
Available 2018 Kia Forte tire choices are all radial, with BFGoodrich appearing in both 16-inch and 17-inch fitments, Michelin joining the 205/55R16 size, and American Classic adding a wide whitewall option in 205/55R16. Across the lineup, the main comparisons are tire series, blackwall versus wide whitewall styling, and wheel-width compatibility within the correct size.
These FAQs focus on the exact tire sizes used on the 2018 Kia Forte, how LX, S, and EX fitments differ, and what to check when comparing wheel diameter, tire style, and everyday road-use condition.
Tire Size & Fitment
What tire size fits a 2018 Kia Forte?
The 2018 Kia Forte uses three different tire sizes depending on sub-model. The LX uses 195/65R15, the S uses 205/55R16, and the EX uses 215/45R17. All three are radial sizes, and each one corresponds to a different wheel diameter, so the correct fitment starts with identifying the exact trim level and wheel setup on the car.
That matters because moving from one Forte trim to another also changes the rim size from 15 to 16 to 17 inches. Before replacing tires, check the sidewall on the current tire and confirm the wheel diameter on the car, especially if the vehicle has had aftermarket wheels or a prior owner changed trim-specific parts.
What size rim does a 2018 Kia Forte use?
A 2018 Kia Forte can use a 15-inch, 16-inch, or 17-inch rim, depending on sub-model. The LX uses a 15-inch rim with 195/65R15 tires, the S uses a 16-inch rim with 205/55R16 tires, and the EX uses a 17-inch rim with 215/45R17 tires. Rim diameter is tied directly to the tire size on this model.
The practical takeaway is that rim diameter must match the last number in the tire size. A 17-inch tire will not mount on a 16-inch wheel, and a 15-inch tire will not mount on a 17-inch wheel. If the car has replacement wheels, verify the actual wheel diameter and width before choosing tires.
Why does the 2018 Kia Forte have more than one tire size?
The 2018 Kia Forte has more than one tire size because tire fitment changes by sub-model. LX, S, and EX versions do not share the same wheel-and-tire package, so each one uses a different radial size. The result is a lineup with three distinct fitments rather than a single size for every Forte built that year.
For a buyer, that means trim identification is more important than simply knowing the year and model. A Forte with 15-inch wheels needs a different tire than one with 16-inch or 17-inch wheels, and selecting by appearance alone can lead to the wrong size. Checking the current tire sidewall and wheel diameter keeps the search on the right path.
Choosing the Right Tire
What should I consider when choosing a tire for a 2018 Kia Forte?
Start with the exact sub-model and its required tire size: 195/65R15 for LX, 205/55R16 for S, and 215/45R17 for EX. Since all primary fitments are radial, the next decisions are wheel compatibility, intended driving use, and the character of the available tire lines within the proper size rather than choosing between basic construction types.
From there, compare practical details such as sidewall style, approved rim-width range, and any stated load figures when they are relevant to the products you are considering. A buyer looking at 205/55R16 also has a broader appearance choice than the other Forte sizes, so visual presentation may matter as much as brand or tread category.
What sidewall styles are available for 2018 Kia Forte tires?
Blackwall is the main sidewall style available across the 2018 Kia Forte tire sizes shown here. In 205/55R16, there is also a wide whitewall option, which creates a noticeably different look from the more typical modern blackwall presentation. The 215/45R17 and other visible performance-oriented offerings stay with blackwall styling.
That means sidewall choice is mostly straightforward unless the Forte uses the 205/55R16 size. Buyers with an S model can compare a more conventional modern appearance against a wide whitewall treatment, while LX and EX buyers are primarily choosing among blackwall radials. Sidewall style should still be matched to the correct size and wheel diameter first.
What brands offer tires for the 2018 Kia Forte?
Tire choices for the 2018 Kia Forte include BFGoodrich, Michelin, and American Classic, depending on the size. BFGoodrich appears in both 215/45R17 and 205/55R16 with several g-Force series options, Michelin appears in 205/55R16, and American Classic also appears in 205/55R16 with a wide whitewall radial.
Brand selection is tied to the exact Forte fitment rather than the model as a whole. An EX owner looking at 215/45R17 is comparing BFGoodrich options within that size, while an S owner shopping 205/55R16 has a broader mix of brands and presentation styles. Choosing the correct size first keeps those brand comparisons relevant.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Kia Forte?
Yes. Modifications such as aftermarket wheels, suspension changes, lowering, or body alterations can affect tire fitment on a 2018 Kia Forte even when the car started with one of the correct factory size groups. Because the Forte uses three different rim diameters across LX, S, and EX trims, wheel changes can easily move the car away from its original setup.
That is why replacement should begin with the actual wheel diameter and tire size currently on the car, not trim assumptions alone. Clearance around struts, fenders, and steering components should also be checked if the vehicle has been altered. A modified Forte may still use a stock-size tire, but that should be verified rather than assumed.
What should I inspect before driving a 2018 Kia Forte on new tires?
Before driving on new tires, inspect the wheels for damage, confirm the tire size matches the car's actual wheel diameter, and make sure all four tires are seated and inflated correctly. It is also smart to check valve stems, lug nut condition, and visible suspension wear, since those items can affect ride quality and tire behavior right away.
A short test drive should be used to listen for rubbing, vibration, or pull that was not present before. On a 2018 Kia Forte, that is especially important if the car has changed hands or wheels over the years, because LX, S, and EX trims do not share the same original diameter. Any unusual contact or handling change deserves a closer inspection.
How often should tires on a 2018 Kia Forte be inspected?
Tires on a 2018 Kia Forte should be inspected regularly for tread wear, cuts, bulges, cracking, and uneven wear patterns. Monthly pressure checks are a sensible routine, and the tires should also be looked over before longer drives or after any impact with potholes or curbs. Regular inspection helps catch wheel or alignment issues early.
Consistent checks matter even more if the Forte is driven infrequently or sits for longer periods, since low-use cars can still develop age-related problems or slow air loss. The inspection should include the inner and outer sidewalls, not just the tread face. Keeping the correct pressure and watching for uneven wear also helps confirm that the chosen size is working properly on the car.
