The 2016 Kia K900 was Kia’s full-size luxury sedan, built to compete in a segment where ride quality, quiet cruising, and a composed highway feel matter as much as straight-line performance. That mission shows up clearly in its tire fitment, because the K900 uses three radial tire sizes depending on trim and axle position. V6 models use 245/50R18, while the V8 setup moves to staggered 19-inch sizes with 245/45R19 in front and 275/40R19 in the rear. Available choices range from blackwall performance radials to redline and raised white letter options in 18-inch form, so the right selection depends on trim, wheel diameter, appearance goals, and how the car is actually driven.
Which Tire Size Is Right for The 2016 Kia K900
The 2016 Kia K900 uses three primary tire sizes, and the right one depends first on the exact sub-model and wheel setup. V6 Luxury and V6 Premium models use an 18-inch radial, while the V8 Luxury uses a staggered 19-inch arrangement with different front and rear sizes. Before choosing a tire, confirm both the trim level and whether the car retains its original wheel diameter and front-to-rear fitment.
245/50R18 is a metric radial size in which 245 identifies the nominal section width in millimeters, 50 is the aspect ratio, R denotes radial construction, and 18 is the rim diameter in inches. On the 2016 Kia K900, this size serves the V6 Luxury and V6 Premium models and supports the sedan’s touring-oriented character on an 18-inch wheel. Available choices include Pro-Trac Street Pro III tires with either raised white letter or redline sidewalls. This size is the right starting point when the car is a V6 model and the goal is to match the correct wheel diameter while still choosing the sidewall presentation you prefer.
245/45R19 is a metric radial size where 245 is the nominal section width in millimeters, 45 is the aspect ratio, R marks radial construction, and 19 identifies the wheel diameter. On the 2016 Kia K900, this size is used at the front of the V8 Luxury staggered setup rather than across the whole car. Available options in this size are blackwall radials from BFGoodrich and Nitto across series such as g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This is the size to evaluate when confirming front-axle replacement on a V8 car with its original 19-inch wheel package.
275/40R19 is a metric radial size in which 275 is the nominal section width in millimeters, 40 is the aspect ratio, R indicates radial construction, and 19 is the rim diameter. On the 2016 Kia K900, this wider size is used at the rear of the V8 Luxury and forms the back half of the factory-style staggered 19-inch arrangement. Product choices are blackwall radials from BFGoodrich and Nitto, including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2. This size matters most when maintaining proper rear fitment and preserving the intended front-to-rear tire relationship on the V8 setup.
Sub-model fitment on the 2016 Kia K900 is not the same across the range, so trim identification matters before a tire is chosen. The V6 cars share one 18-inch size, while the V8 Luxury uses a staggered 19-inch front and rear combination that requires axle-specific selection.
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2016 Kia K900 V6 Luxury
The 2016 Kia K900 V6 Luxury uses a 245/50R18 radial tire. Tire selection is mostly a matter of confirming the 18-inch wheel remains in place, then choosing among the available sidewall treatments and product styles that suit the car’s appearance and road use.
The 2016 Kia K900 V6 Premium also uses a 245/50R18 radial tire, keeping fitment straightforward when the original wheel diameter is still on the car. That lets the decision shift toward tire style, including redline or raised white letter presentation, rather than sorting through multiple primary sizes.
The front of the 2016 Kia K900 V8 Luxury uses 245/45R19 radial tires as part of a staggered setup. Tire selection should keep the front position in mind, since this size works with a different rear tire and should be matched to the car’s 19-inch wheel arrangement.
The rear of the 2016 Kia K900 V8 Luxury uses 275/40R19 radial tires, wider than the front fitment. That means rear tire choice is not interchangeable with the front, and owners should confirm axle position, wheel width, and overall staggered setup before replacing a single tire or a full set.
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 2016 Kia K900 Tires for Sale
Available 2016 Kia K900 tire choices vary by size, brand, series, and sidewall treatment. The 18-inch V6 fitment centers on Pro-Trac Street Pro III in RWL and redline form, while the 19-inch V8 front and rear sizes offer blackwall radial choices from BFGoodrich and Nitto.
The questions below focus on 2016 Kia K900 tire size, 18-inch versus 19-inch wheel fitment, staggered V8 front and rear sizing, available sidewall and brand choices, and the checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2016 Kia K900?
The 2016 Kia K900 uses three tire sizes depending on trim and axle position. V6 Luxury and V6 Premium models use 245/50R18. The V8 Luxury uses a staggered 19-inch setup with 245/45R19 on the front and 275/40R19 on the rear.
That means the first step is identifying whether the car is a V6 or V8 model, then confirming whether it still has its original wheels. On a V8 car, front and rear tires are not the same size, so replacement should be matched to axle position rather than chosen as a single universal K900 fitment.
What size rim does a 2016 Kia K900 use?
A 2016 Kia K900 uses either an 18-inch or 19-inch rim, depending on the version of the car. The 245/50R18 fitment uses an 18-inch wheel, while both 245/45R19 and 275/40R19 use 19-inch wheels on the staggered V8 setup.
Wheel diameter should be confirmed before ordering tires, especially if the car has changed hands or has been modified. A tire for an 18-inch wheel cannot be mounted on a 19-inch rim, and the V8 arrangement also requires attention to front and rear position so the correct tire size stays with the correct wheel.
Do all 2016 Kia K900 sub-models use the same tire size?
No, all 2016 Kia K900 sub-models do not use the same tire size. The V6 Luxury and V6 Premium share 245/50R18, but the V8 Luxury uses two different 19-inch sizes: 245/45R19 in front and 275/40R19 in the rear.
That split matters because a K900 owner may be looking at the same body style but not the same wheel and tire package. The safest approach is to verify trim, axle position, and the actual tire size currently mounted, then compare that against the intended replacement rather than assuming every 2016 K900 uses one setup.
Choosing the Right Tire
What should I consider when choosing a tire for a 2016 Kia K900?
Start with the exact tire size the car uses, because the 2016 Kia K900 can be fitted with 245/50R18, 245/45R19, or 275/40R19 depending on trim and axle position. After size, compare construction, wheel diameter, tire series, sidewall style, and any stated rim-width specification that applies to the wheel on the car.
The real choice then becomes how the sedan is used and how you want it to look. A V6 owner may focus on redline versus raised white letter appearance in 18-inch form, while a V8 owner will usually compare blackwall performance-oriented radials and make sure the staggered front and rear relationship stays intact.
What sidewall styles are available for 2016 Kia K900 tires?
Sidewall style depends on the tire size used on the 2016 Kia K900. In 245/50R18, available sidewall treatments include RWL and redline. In the 19-inch sizes used on the V8 Luxury, the available products are blackwall radials.
That makes sidewall choice part of the trim and wheel-size decision rather than a universal styling option across the whole model line. Owners of V6 cars have more visible appearance variation in the available 18-inch tires, while V8 owners choosing 19-inch fitments will be comparing mostly series, brand, and wheel-compatibility details.
What brands offer tires for the 2016 Kia K900?
Tires for the 2016 Kia K900 are available from Pro-Trac, BFGoodrich, and Nitto, depending on size. Pro-Trac appears in the 245/50R18 V6 fitment, while BFGoodrich and Nitto cover the 19-inch V8 front and rear sizes through several radial performance and all-season oriented series.
Brand choice should come after the correct size has been confirmed, because not every brand appears in every K900 fitment. It also helps to compare product details within the same size, such as sidewall presentation on the 18-inch tire or rim-width guidance on some 19-inch applications, instead of choosing by brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2016 Kia K900?
A period-style 2016 Kia K900 tire choice starts with keeping the correct original-size format for the trim and wheel package on the car. That means 245/50R18 for the V6 models or the 245/45R19 front and 275/40R19 rear combination for the V8 Luxury, then selecting a tire whose look suits the sedan’s presentation.
Appearance goals differ by setup. The 18-inch V6 fitment offers visible style choices through redline or raised white letter sidewalls, while the 19-inch V8 options stay within a more understated blackwall presentation. Owners aiming for exact historical appearance should also compare the current wheels and overall stance against vehicle-specific reference material before finalizing a tire style.
How does tire construction affect the appearance of a restored 2016 Kia K900?
On the 2016 Kia K900, tire construction does not create a bias-ply versus radial appearance decision because the primary fitments are radial throughout. The visible differences come more from sidewall treatment, series character, and whether the car keeps its original 18-inch or staggered 19-inch wheel arrangement.
That means a restoration-oriented owner should pay closer attention to size, wheel diameter, and sidewall styling than to construction type alone. A V6 car can take on a very different look with redline or raised white letter tires, while a V8 car usually retains a more modern blackwall appearance when the correct front and rear 19-inch sizes are preserved.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2016 Kia K900?
Yes, modifications can affect tire fitment on a 2016 Kia K900. Wheel swaps, changes in wheel width, suspension lowering, altered alignment settings, or body and fender modifications can all change how a 245/50R18, 245/45R19, or 275/40R19 tire sits and clears the car.
That matters even more on the V8 Luxury because the car uses a staggered front and rear setup. Any owner working with aftermarket wheels should confirm actual wheel diameter and width, then check steering clearance, rear clearance, and overall tire position before assuming that a stock-size tire will behave the same on a modified car.
What should I inspect before driving a 2016 Kia K900 on new tires?
Before driving a 2016 Kia K900 on new tires, inspect wheel condition, valve stems, air pressure, and the basic mounting details to make sure each tire matches the correct axle position and wheel diameter. It is also wise to look over suspension and steering components if the car has seen age, curb impact, or uneven prior tire wear.
A short initial drive should be followed by another check for pressure stability and any signs of rubbing or unusual contact. On a V8 K900, confirm that the 245/45R19 tires are on the front and the 275/40R19 tires are on the rear, since mixing positions can upset the intended staggered fitment.
How often should tires on a 2016 Kia K900 be inspected?
Tires on a 2016 Kia K900 should be inspected regularly, not just when tread appears low. Check them for uneven wear, cuts, bulges, cracking, punctures, and air loss, and pay attention to how the car feels on the road because vibration or pull can signal a tire or chassis issue before damage becomes obvious.
Luxury sedans often spend time parked as well as driven, so age and condition matter along with mileage. It helps to inspect before longer trips, after seasonal storage, and any time a wheel or suspension change has been made. On staggered V8 cars, inspect front and rear tires separately because the sizes and wear patterns will differ.
