The 2018 Hyundai Ioniq arrived as Hyundai’s dedicated electrified hatchback, offered in hybrid, plug-in hybrid, and full electric form with an emphasis on efficiency and low-drag packaging. That mission makes tire selection especially important, because this model uses three different primary radial sizes depending on the exact version: 195/65R15, 205/55R16, or 225/45R17. Some owners will be choosing between a comfort-oriented metric fitment and a sportier low-profile setup, while others may want a more distinctive sidewall treatment such as a wide whitewall, redline, or raised white letter option. The first step is matching the correct size to the exact Ioniq sub-model and wheel diameter already on the car.
Which Tire Size Is Right for The 2018 Hyundai Ioniq
The 2018 Hyundai Ioniq uses three primary tire sizes, and the correct one depends on the exact sub-model and wheel diameter. All three are radial metric sizes, but they are spread across 15-inch, 16-inch, and 17-inch rims, so confirming the specific Ioniq version and the wheels currently on the car comes before comparing tire styles, brands, or sidewall treatments.
Fit(s): Electric, Electric Limited, Plug-In Hybrid, and Plug-In Hybrid Limited
Construction: Radial|Rim: 16 in
205/55R16 is a modern metric radial size in which 205 identifies nominal section width in millimeters, 55 is the aspect ratio, R designates radial construction, and 16 is the rim diameter in inches. On the 2018 Hyundai Ioniq, this size is part of the main fitment for certain electric and plug-in hybrid versions and balances contemporary road manners with a moderate sidewall height. Available choices include BFGoodrich, Michelin, and American Classic, with blackwall and wide whitewall presentations across several series. This size is the one to evaluate when the car is already equipped with 16-inch wheels and appearance matters along with standard fitment.
195/65R15 is a metric radial size where 195 is the nominal section width in millimeters, 65 is the aspect ratio, R indicates radial construction, and 15 is the wheel diameter in inches. On the 2018 Hyundai Ioniq, this size belongs to specific hybrid trims rather than the full model range, so it should be matched to the exact sub-model before purchase. Its dimensions place it in the taller-sidewall portion of the Ioniq fitment range compared with the 16-inch and 17-inch alternatives. This is the size to confirm when the car carries 15-inch wheels and the goal is to stay with the original wheel diameter.
225/45R17 is a metric radial size in which 225 is the nominal section width in millimeters, 45 is the aspect ratio, R marks radial construction, and 17 is the rim diameter in inches. For the 2018 Hyundai Ioniq, this size applies to a specific hybrid trim and brings the lowest-profile sidewall of the three primary fitments. Product choice is broader here, with BFGoodrich, Nitto, and Pro-Trac options, plus blackwall, raised white letter, and redline sidewall styles in different tire series. This size deserves careful wheel confirmation because it belongs only with an Ioniq already set up for 17-inch rims.
Tire fitment on the 2018 Hyundai Ioniq varies by sub-model rather than staying uniform across the full lineup. Checking whether the car is an Electric, Hybrid, Hybrid Limited, Plug-In Hybrid, or related trim is the key step before comparing actual tire options.
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2018 Hyundai Ioniq Electric
The 2018 Hyundai Ioniq Electric uses the 205/55R16 radial size. Tire selection here centers on staying with the 16-inch fitment while comparing available brands and deciding whether a standard blackwall or a more appearance-driven wide whitewall suits the car.
The 2018 Hyundai Ioniq Electric Limited also uses the 205/55R16 radial size. That keeps fitment straightforward, so the main decision becomes choosing among available product series and sidewall presentations that match the car’s intended look and use.
The 2018 Hyundai Ioniq Hybrid Blue uses the 195/65R15 radial size. This makes wheel diameter confirmation especially important, because moving into the 16-inch or 17-inch Ioniq sizes would mean the car is no longer on its original wheel fitment.
The 2018 Hyundai Ioniq Hybrid Limited uses the 225/45R17 radial size. Selection here is more about comparing 17-inch tire choices, sidewall styles, and series character than deciding among multiple primary fitments for the same trim.
The 2018 Hyundai Ioniq Hybrid SEL uses the 195/65R15 radial size. Owners should confirm that the car still wears its 15-inch wheels, then focus on maintaining the proper size rather than borrowing fitment from another Ioniq trim.
The 2018 Hyundai Ioniq Plug-In Hybrid uses the 205/55R16 radial size. That makes the decision less about which primary size fits and more about choosing the right 16-inch tire style and product character for everyday road use.
The 2018 Hyundai Ioniq Plug-In Hybrid Limited also uses the 205/55R16 radial size. With the fitment already defined, the useful comparison points are brand, tire series, and sidewall appearance rather than alternative primary sizes.
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 Hyundai Ioniq Tires for Sale
Available 2018 Hyundai Ioniq tires span 205/55R16 and 225/45R17 fitments, with choices from BFGoodrich, Michelin, American Classic, Nitto, and Pro-Trac. The main differences to compare are tire series, blackwall versus wide whitewall, redline, or raised white letter sidewalls, and wheel-width compatibility within each size.
These 2018 Hyundai Ioniq tire FAQs focus on matching the correct size to the exact sub-model, understanding rim fitment, comparing available tire styles and brands, and checking condition, clearance, and maintenance before regular road use.
Tire Size & Fitment
What tire size fits a 2018 Hyundai Ioniq?
The 2018 Hyundai Ioniq uses three different primary tire sizes: 195/65R15, 205/55R16, and 225/45R17. The correct size depends on the exact sub-model. Hybrid Blue and Hybrid SEL use 195/65R15, Electric, Electric Limited, Plug-In Hybrid, and Plug-In Hybrid Limited use 205/55R16, and Hybrid Limited uses 225/45R17.
That means tire selection starts with identifying the exact Ioniq version and confirming the wheel diameter already on the car. A 15-inch, 16-inch, or 17-inch wheel setup changes the correct tire size, so it is important not to assume that one Ioniq trim uses the same tire as another simply because the body style looks similar.
What size rim does a 2018 Hyundai Ioniq use?
A 2018 Hyundai Ioniq can use 15-inch, 16-inch, or 17-inch rims, depending on sub-model. The 195/65R15 fitment uses a 15-inch rim, the 205/55R16 fitment uses a 16-inch rim, and the 225/45R17 fitment uses a 17-inch rim.
Rim diameter is the first thing to verify before ordering tires, especially on a used Ioniq that may no longer have its original wheels. Looking at the current tire sidewall or measuring the wheel helps prevent ordering the correct tire size for the wrong trim, which is a common mistake on models that share one nameplate but use several wheel packages.
Why does the 2018 Hyundai Ioniq have more than one tire size?
The 2018 Hyundai Ioniq was offered in several electrified versions, and each one did not use the same wheel and tire package. Some trims use 15-inch or 16-inch metric radial sizes, while the Hybrid Limited moves to a 17-inch setup with 225/45R17.
That variation means the right tire is tied to configuration rather than just year and model name. Checking the exact sub-model is the best starting point, then confirming the tire size already mounted on the car adds another layer of protection in case the wheels have been changed since new.
Choosing the Right Tire
What should I consider when choosing a 205/55R16 tire for a 2018 Hyundai Ioniq?
A 205/55R16 tire for a 2018 Hyundai Ioniq should first match the trims that use that size, including the Electric, Electric Limited, Plug-In Hybrid, and Plug-In Hybrid Limited. From there, the main comparison points are radial construction, wheel-width compatibility, brand, tire series, sidewall style, and any stated load figure tied to a specific pressure.
Available 205/55R16 choices include BFGoodrich, Michelin, and American Classic, with blackwall and wide whitewall presentations. That gives owners room to balance standard modern appearance against a more distinctive visual treatment, but the tire still needs to suit the actual wheel on the car and the way the Ioniq is used on the road.
What sidewall styles are available for 2018 Hyundai Ioniq tires?
Sidewall choices for the 2018 Hyundai Ioniq include blackwall, wide whitewall, raised white letter, and redline, depending on tire size. Blackwall appears across both 205/55R16 and 225/45R17 offerings, wide whitewall is available in 205/55R16, and raised white letter plus redline appear in the 225/45R17 fitment.
Those sidewall treatments change the car’s visual character much more than its fitment category. The practical step is to choose the correct size and rim diameter first, then use sidewall style to support the look you want, whether that means a low-key modern presentation or something with more custom or collector-oriented personality.
What brands offer tires for the 2018 Hyundai Ioniq?
Tires for the 2018 Hyundai Ioniq are available from BFGoodrich, Michelin, American Classic, Nitto, and Pro-Trac across the covered sizes. BFGoodrich appears in both 205/55R16 and 225/45R17, while Michelin and American Classic appear in 205/55R16, and Nitto and Pro-Trac appear in 225/45R17.
Brand alone should not be the only deciding factor. It makes more sense to narrow the search by exact size and wheel diameter, then compare the available series, sidewall presentation, and wheel-width suitability within that size so the chosen tire matches both the car’s trim level and the owner’s intended use.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Hyundai Ioniq?
A period-style 2018 Hyundai Ioniq still starts with the correct modern radial size for the exact sub-model: 195/65R15, 205/55R16, or 225/45R17. Within the currently available choices, the most appearance-driven options are the 205/55R16 wide whitewall and the 225/45R17 redline or raised white letter treatments.
Since the Ioniq is a contemporary electrified hatchback rather than a traditional restoration-era vehicle, appearance usually comes down to personal style more than historical duplication. Choosing the proper size and wheel diameter matters first, then sidewall treatment can be used to create a cleaner stock-like look or a more customized presentation.
How does tire construction affect the appearance of a restored 2018 Hyundai Ioniq?
On a 2018 Hyundai Ioniq, construction does not create a bias-ply versus radial appearance decision because the primary fitments are radial throughout the range. Visual differences come instead from sidewall treatment, tire series character, and whether the car is on the 15-inch, 16-inch, or 17-inch wheel setup tied to its sub-model.
That makes size accuracy more important than construction nostalgia on this vehicle. A correct radial size preserves the intended proportions of the trim it belongs to, while sidewall choices such as blackwall, wide whitewall, redline, or raised white letter let the owner shift the look without changing the Ioniq’s basic fitment category.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Hyundai Ioniq?
Yes, modifications can affect tire fitment on a 2018 Hyundai Ioniq. Wheel changes, altered offsets, suspension lowering, replacement springs, or body changes can all influence whether the original 195/65R15, 205/55R16, or 225/45R17 size still makes sense on the car.
A modified Ioniq should be checked for wheel diameter, wheel width, steering clearance, and space around the fenders before selecting tires. Even when the sidewall shows one of the standard sizes, an aftermarket setup may have different wheel dimensions than stock, which can change how confidently that tire works on the vehicle.
What should I inspect before driving a 2018 Hyundai Ioniq on new tires?
Before driving a 2018 Hyundai Ioniq on new tires, inspect the wheel condition, verify the tire size matches the exact sub-model, and confirm the tires are seated and inflated correctly. It also helps to check for rubbing at full steering lock and to look over the suspension and alignment condition if the old tires wore unevenly.
A short local test drive is useful before regular commuting or highway miles. Listening for contact noises and rechecking pressure after the first drive can catch simple issues early, especially on an Ioniq with replacement wheels or a trim-specific fitment where a 15-inch, 16-inch, or 17-inch package changes the tire choice.
How often should tires on a 2018 Hyundai Ioniq be inspected?
Tires on a 2018 Hyundai Ioniq should be inspected regularly rather than only when a problem becomes obvious. A quick visual check for cuts, bulges, irregular wear, embedded objects, and pressure loss is smart before longer drives, and a more careful inspection should be part of normal routine maintenance.
That habit matters on an Ioniq because different trims use different wheel and tire packages, and mismatched wear can point to alignment or suspension issues that affect replacement decisions. Looking at tread condition, sidewall health, and air retention on a schedule makes it easier to catch problems early and helps preserve the intended fitment.
