The 2018 Lexus LC500h blends grand touring luxury with a dramatic coupe profile, making tire choice as much about preserving the car’s balance as simply replacing rubber. Its low, wide stance and hybrid performance character place a premium on using the right front and rear fitment for the exact wheel package on the car. This model uses staggered radial tire sizing, with either 20-inch or 21-inch combinations depending on the setup. Available choices include blackwall performance tires along with redline and raised white letter options in the 20-inch sizes. The key step is confirming whether the car is wearing the 20-inch or 21-inch package before comparing style, series, and intended road use.
Which Tire Size Is Right for The 2018 Lexus LC500h
The 2018 Lexus LC500h uses four primary tire sizes because it has a staggered front-and-rear layout and was fitted with either a 20-inch or 21-inch wheel package. The first decision is confirming wheel diameter, since the front and rear sizes change together with the 20-inch or 21-inch setup. Once that is established, the real comparison becomes selecting the right radial tire by brand, series, sidewall style, and intended driving use.
The 245/40R21 size uses a modern metric radial format: 245 is the nominal section width in millimeters, 40 is the aspect ratio, R identifies radial construction, and 21 is the rim diameter in inches. On the 2018 Lexus LC500h, this is a front tire size used with the 21-inch wheel package, so it works as part of a staggered setup rather than as a universal four-corner fitment. Its role is to preserve the intended front-to-rear sizing relationship. Buyers should confirm that the car still has its 21-inch wheels and matching rear size before selecting a replacement.
The 245/45R20 size is a metric radial in which 245 denotes section width in millimeters, 45 is the aspect ratio, R indicates radial construction, and 20 identifies the wheel diameter. On the 2018 Lexus LC500h, this is the front tire size for the 20-inch package. Product choices in this size include BFGoodrich, Nitto, and Pro-Trac options, with blackwall, redline, and raised white letter sidewall treatments across several series. This size is the right place to compare appearance and product character, but only after confirming the car is using the 20-inch front and matching 20-inch rear combination.
The 275/35R21 size follows the same metric radial system, with 275 representing nominal width in millimeters, 35 the aspect ratio, R for radial construction, and 21 for the wheel diameter. On the 2018 Lexus LC500h, this is the rear tire size paired with the 21-inch front fitment, making it part of the car’s staggered layout. Its wider section supports the rear of the package and should be treated as a matched rear application rather than a standalone substitute. Wheel diameter, rear wheel width, and overall front-to-rear compatibility should all be checked before replacement.
The 275/40R20 size is a metric radial where 275 gives the nominal section width in millimeters, 40 is the aspect ratio, R marks radial construction, and 20 is the rim diameter in inches. On the 2018 Lexus LC500h, this is the rear size for the 20-inch wheel package. Available choices include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster products, with blackwall, redline, and raised white letter sidewalls plus several distinct tire series. This is a size where intended use matters, so it is worth comparing performance-oriented street tires against more specialized options while keeping the matched 20-inch front size in view.
Fitment on the 2018 Lexus LC500h is straightforward in layout but still requires attention because the front and rear positions use different sizes. Checking whether the car is at the front or rear, and whether it has the 20-inch or 21-inch wheel package, is essential before choosing a tire.
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2018 Lexus LC500h Base Front
The 2018 Lexus LC500h Base Front uses a narrower front tire than the rear and can be fitted with either the 20-inch or 21-inch front size depending on the wheel package. Tire selection here starts with confirming wheel diameter, then comparing radial options by series, brand, and sidewall treatment where available.
The 2018 Lexus LC500h Base Rear uses the wider half of the staggered setup, again with either a 20-inch or 21-inch rear tire depending on the wheels on the car. Rear replacement should be matched to the correct wheel package and intended use, especially when comparing standard street tires with more specialized radial offerings.
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 Lexus LC500h Tires for Sale
Available 20-inch Lexus LC500h tire choices include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster options across several radial series. Buyers can compare blackwall, redline, and raised white letter styles, along with differences in rim-width specifications and product focus.
These FAQs focus on the 2018 Lexus LC500h’s staggered tire sizing, 20-inch versus 21-inch wheel fitment, product-selection differences, appearance choices, and the checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 2018 Lexus LC500h?
A 2018 Lexus LC500h uses a staggered tire setup, so the front and rear sizes are different. The 20-inch package uses 245/45R20 in front and 275/40R20 in the rear, while the 21-inch package uses 245/40R21 in front and 275/35R21 in the rear. All of these are radial tire sizes.
The important step is identifying which wheel package is actually on the car before ordering tires. A front size should be matched to the corresponding rear size for the same wheel diameter, and a 20-inch setup should not be mixed with a 21-inch setup without carefully reviewing wheel and vehicle compatibility.
What size rim does a 2018 Lexus LC500h use?
The 2018 Lexus LC500h uses either 20-inch or 21-inch rims, depending on the tire package on the car. The 20-inch combination pairs 245/45R20 front tires with 275/40R20 rear tires, while the 21-inch combination pairs 245/40R21 fronts with 275/35R21 rears.
Wheel diameter should be confirmed before any tire comparison begins, since it determines both the front and rear size set. It is also smart to check actual wheel width on the car, especially if the coupe has aftermarket wheels, because diameter alone does not settle every fitment question.
Why does the 2018 Lexus LC500h have more than one tire size?
The 2018 Lexus LC500h has more than one tire size because it uses a staggered layout, with narrower tires in front and wider tires in the rear, and it was offered with either a 20-inch or 21-inch wheel package. That creates two complete size combinations rather than one universal size.
This means tire selection is not just about finding any LC500h size that looks close. The correct approach is to confirm whether the car has 20-inch or 21-inch wheels and then match the proper front and rear sizes as a set, especially if wheels or suspension have ever been changed.
Choosing the Right Tire
What should I consider when choosing a 245/45R20 tire for a 2018 Lexus LC500h?
Choosing a 245/45R20 tire for a 2018 Lexus LC500h starts with confirming that the car is using the 20-inch front fitment. In this size, available options include BFGoodrich, Nitto, and Pro-Trac radial tires, with blackwall, redline, and raised white letter sidewall treatments across multiple series.
After size confirmation, compare the tire’s intended character and wheel compatibility rather than focusing only on appearance. Some products also include stated rim-width ranges, which are worth checking against the actual front wheel. That matters even more on a coupe that may have aftermarket wheels or a style-focused tire choice.
What sidewall styles are available for 2018 Lexus LC500h tires?
For the 20-inch Lexus LC500h tire sizes, available sidewall styles include blackwall, redline, and RWL, which is raised white letter. Blackwall appears across several performance-oriented radial choices, while the redline and raised white letter treatments are offered in Pro-Trac Street Pro III applications.
Sidewall choice mainly affects the visual presentation of the car, so it should be matched to the look you want without overlooking fitment basics. The first check is still wheel diameter and proper front-to-rear sizing, since the car’s staggered setup matters more than sidewall style when selecting a usable tire combination.
What brands offer tires for the 2018 Lexus LC500h?
Available 20-inch tire options for the 2018 Lexus LC500h include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster. Depending on the exact size, the selection spans g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, Nitto NT555 G2, Street Pro III, and a Drag Radial application.
Brand choice should come after confirming the exact front or rear size and the wheel package on the car. Once that is settled, compare each tire’s series, sidewall treatment, and any stated rim-width or load details that matter to your setup rather than assuming every brand’s option serves the same purpose.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Lexus LC500h?
A period-style approach on a 2018 Lexus LC500h usually starts with keeping the correct staggered size relationship and wheel diameter already on the car. Within the available 20-inch choices, blackwall tires maintain a contemporary performance look, while redline and raised white letter options create a more customized visual statement.
Because this is a modern grand touring coupe rather than an early collector-era car, appearance choice is more about style direction than historical restoration practice. The safest approach is to preserve the proper front and rear sizing first, then choose the sidewall and series that best suit the car’s intended presentation.
How does tire construction affect the appearance of a restored 2018 Lexus LC500h?
On the 2018 Lexus LC500h, the primary fitments are radial tires, so construction itself does not create the kind of bias-ply-versus-radial appearance change seen on older vehicles. Visual character comes more from the size, overall wheel package, and sidewall style, especially when comparing blackwall, redline, and raised white letter options.
For an appearance-focused build, the key is keeping the correct staggered proportions and avoiding a mismatched front-to-rear combination that changes the car’s stance. A clean, road-going presentation depends more on proper sizing and wheel compatibility than on construction changes, since radial construction is already part of the intended fitment.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Lexus LC500h?
Yes, modifications can affect tire fitment on a 2018 Lexus LC500h. Aftermarket wheels, suspension changes, lowering, alignment changes, and body alterations can all change how a 245/45R20, 275/40R20, 245/40R21, or 275/35R21 tire sits in the wheel opening and clears nearby components.
Even when the tire size itself is correct for the model, actual fitment still depends on the wheel package and vehicle setup. It is wise to confirm wheel width, inspect inner and outer clearance, and make sure the front and rear tires still work as a matched staggered set before putting the car back into regular use.
What should I inspect before driving a 2018 Lexus LC500h on new tires?
Before driving a 2018 Lexus LC500h on new tires, inspect wheel condition, confirm the correct front and rear sizes, and verify that tire pressure is set properly. It is also smart to look over valve stems, check for any rubbing at full steering lock, and make sure each tire is mounted on the intended wheel position.
A quick road-use check should include watching for vibration, pull, uneven clearance, or unexpected contact after installation. Since the LC500h uses a staggered setup with two possible wheel diameters, taking a moment to confirm the complete combination helps prevent mix-ups that may not be obvious until the car is moving.
What should I check before a longer drive in a 2018 Lexus LC500h?
Before a longer drive in a 2018 Lexus LC500h, check tire pressure, tread condition, and the sidewalls for cuts, bulges, or cracking. It also helps to verify that the car is wearing a matched front-and-rear size combination for either the 20-inch or 21-inch wheel package rather than a mixed setup.
Longer trips place more importance on consistency across all four tires, especially on a staggered car. A careful inspection of air retention, visible wear, and wheel condition can reveal issues before they become roadside problems. Any recent wheel swap, suspension work, or alignment change makes that check even more worthwhile.
