The 2021 Lexus LC500 blends modern grand touring character with dramatic coupe styling, making tire fitment a meaningful part of how the car looks and drives. Its long-hood, rear-drive layout and staggered setup give the car a distinctly performance-oriented stance, so getting the front and rear sizes right matters as much as choosing the right wheel diameter. This LC500 uses radial tires in four primary sizes: 245/45R20 and 275/40R20 on 20-inch wheels, or 245/40R21 and 275/35R21 on 21-inch wheels. Available choices include blackwall, redline, and raised white letter styles across several radial series. The key step is confirming whether the car is on its 20-inch or 21-inch wheel package before comparing tire options.
Which Tire Size Is Right for The 2021 Lexus LC500
The 2021 Lexus LC500 uses four primary tire sizes because fitment is split by both axle position and wheel diameter. Front sizes are 245/45R20 or 245/40R21, while rear sizes are 275/40R20 or 275/35R21, all in radial construction. Before choosing a tire, confirm whether the car is running the 20-inch or 21-inch setup and then match the correct front and rear combination rather than selecting by width alone.
245/40R21 is a modern metric radial size with a 245-millimeter section width, a 40-series aspect ratio, and fitment for a 21-inch rim. On the 2021 Lexus LC500, this size serves as a front tire in the staggered 21-inch setup, so it should be paired with the matching rear size rather than used as a standalone choice. Its lower-profile format supports the larger-wheel package and keeps the front fitment aligned with the car's intended stance. The important check is that the wheel is truly 21 inches and that the rear axle is matched with the correct companion size.
245/45R20 is a modern metric radial size that identifies a 245-millimeter section width, a 45-series profile, and a 20-inch rim diameter. On the 2021 Lexus LC500, it is the front tire size for the 20-inch staggered setup and is offered across several product families from BFGoodrich, Nitto, and Pro-Trac. Available sidewall treatments include blackwall, redline, and raised white letter, giving this size both performance-oriented and appearance-focused choices. It is the right front size to evaluate when the car is equipped with 20-inch wheels and the matching rear size remains 275/40R20.
275/35R21 is a modern metric radial size with a 275-millimeter section width, a 35-series profile, and fitment for a 21-inch rim. On the 2021 Lexus LC500, this size is used at the rear with the 21-inch wheel package, where it completes the staggered front-to-rear pairing. Its role is specific to the larger-diameter setup, so it should be selected with the corresponding 245/40R21 front size rather than mixed with the 20-inch combination. Buyers considering this size should confirm both wheel diameter and rear-axle placement before comparing brands or tread styles.
275/40R20 is a modern metric radial size that denotes a 275-millimeter section width, a 40-series sidewall profile, and a 20-inch rim diameter. For the 2021 Lexus LC500, this is the rear tire size used with the 20-inch staggered arrangement, matching a 245/45R20 front. Product choices include blackwall, redline, and raised white letter styles, along with several radial series from BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster. This is the rear size to compare when the car has 20-inch wheels and the goal is to keep the axle-specific fitment aligned with the original wheel package.
Sub-model fitment on the 2021 Lexus LC500 depends mostly on axle position and wheel package rather than broad model identity alone. Checking the exact front or rear application matters, and the Inspiration Series follows the 21-inch staggered combination while the Base can appear with either 20-inch or 21-inch sizing.
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2021 Lexus LC500 Base Front
The 2021 Lexus LC500 Base Front uses either a 245/45R20 radial or a 245/40R21 radial, depending on which wheel package is on the car. That makes front tire selection a wheel-diameter decision first, followed by choosing among the available radial products and sidewall styles in the correct size.
The 2021 Lexus LC500 Base Rear uses either a 275/40R20 radial or a 275/35R21 radial to match the front setup already on the vehicle. Rear tire choice should stay paired to the existing wheel diameter and front size so the staggered fitment remains consistent from axle to axle.
The 2021 Lexus LC500 Inspiration Series Front uses the 245/40R21 radial size as part of the 21-inch staggered package. Tire selection here centers on confirming the 21-inch front wheel and keeping the front choice matched to the proper rear size rather than mixing it with the 20-inch setup.
The 2021 Lexus LC500 Inspiration Series Rear uses the 275/35R21 radial size with the 21-inch wheel package. That means the rear tire should be chosen as part of the complete 21-inch front-and-rear combination, with attention to axle position, wheel diameter, and the intended look of the finished setup.
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 2021 Lexus LC500 Tires for Sale
Available 20-inch LC500 tire choices span BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster, with several radial series and sidewall treatments to compare. Buyers can sort between blackwall, redline, and raised white letter options while also checking rim-width specifications and load-capacity details where they are given.
Common 2021 Lexus LC500 tire questions usually come down to staggered sizing, 20-inch versus 21-inch wheel fitment, available radial choices, sidewall style differences, and what to inspect before putting the car back on the road.
Tire Size & Fitment
What tire size fits a 2021 Lexus LC500?
The 2021 Lexus LC500 uses a staggered radial setup with two possible wheel packages. The 20-inch combination is 245/45R20 in front and 275/40R20 in the rear, while the 21-inch combination is 245/40R21 in front and 275/35R21 in the rear.
The most important step is matching the tire size to both axle position and wheel diameter. A front size should not be selected by width alone, and a 20-inch tire should not be mixed with a 21-inch wheel package. Checking the existing wheel setup on the car first keeps the front-and-rear staggered fitment aligned.
What size rim does a 2021 Lexus LC500 use?
A 2021 Lexus LC500 uses either 20-inch or 21-inch rims, depending on the setup on the car. The 20-inch package uses 245/45R20 front and 275/40R20 rear tires, while the 21-inch package uses 245/40R21 front and 275/35R21 rear tires.
Rim diameter needs to be confirmed before choosing any replacement tire because the LC500 does not use one universal wheel size. The front and rear sizes are also different, so measuring only one tire or reading only one sidewall can lead to the wrong selection. Verifying all four wheel and tire positions is the safest approach.
Why does the 2021 Lexus LC500 have more than one tire size?
The 2021 Lexus LC500 has more than one tire size because it uses a staggered arrangement and can be equipped with either 20-inch or 21-inch wheels. That creates separate front and rear sizes for each wheel diameter rather than one uniform size at all four corners.
This matters when replacing tires because the correct choice depends on both location and wheel package. A Base model can appear with either setup, while the Inspiration Series follows the 21-inch combination. Checking the actual wheel diameter on the car and keeping the matching front-and-rear pairing together helps avoid fitment mistakes.
Choosing the Right Tire
What should I consider when choosing a tire for a 2021 Lexus LC500?
Start with the exact axle position and wheel diameter, since the 2021 Lexus LC500 uses staggered front and rear sizes in either a 20-inch or 21-inch package. From there, the real comparison becomes tire series, sidewall treatment, construction details within the radial category, and any stated rim-width or load-capacity specifications.
A careful choice should match how the car is actually used and how you want it to present visually. Some owners may want a straightforward blackwall look, while others may prefer redline or raised white letter styling. It also helps to confirm that the wheel width matches the tire's approved range when that specification is available.
What sidewall styles are available for 2021 Lexus LC500 tires?
For the 20-inch LC500 sizes with current product coverage, available sidewall styles include blackwall, redline, and raised white letter. Blackwall appears across several BFGoodrich, Nitto, and M&H Racemaster options, while Pro-Trac Street Pro III adds redline and RWL versions in both 245/45R20 and 275/40R20.
Sidewall style changes the visual character of the car more than the fitment itself, so the right choice depends on whether the goal is a contemporary, understated, or more expressive look. The key is still selecting the correct front and rear sizes first, then narrowing the options by sidewall appearance within the proper wheel diameter.
What brands offer tires for the 2021 Lexus LC500?
Available 20-inch tire options for the 2021 Lexus LC500 include BFGoodrich, Nitto, Pro-Trac, and M&H Racemaster. Those brands appear across the LC500's 245/45R20 front size and 275/40R20 rear size, with several different radial series and sidewall presentations depending on the exact application.
Brand comparison should happen after the basic fitment is confirmed. Once the correct front or rear size is established, buyers can look at differences in series, stated rim-width compatibility, sidewall style, and load figures where those details are available. That approach keeps the decision focused on usable fitment rather than brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2021 Lexus LC500?
A period-style approach for a 2021 Lexus LC500 usually means staying with the correct staggered radial sizing and choosing a sidewall treatment that suits the look you want. On covered 20-inch sizes, blackwall gives the most understated presentation, while redline and raised white letter options create a more customized visual statement.
Because this is a modern grand touring coupe rather than a vintage restoration, appearance choice is less about strict originality and more about preserving the car's proportions and overall character. Keeping the proper front and rear size pairing matters most. After that, sidewall style and tire series can shape how subtle or bold the finished setup looks.
Does correct tire fitment matter for a 2021 Lexus LC500 restoration or appearance build?
Correct tire fitment matters because the 2021 Lexus LC500 relies on a staggered setup that strongly affects its stance. Using the proper front and rear sizes for the car's 20-inch or 21-inch wheel package helps maintain the visual balance the body was designed around and avoids a mismatched look from axle to axle.
Appearance builds still benefit from careful measurement before changing tire styles or wheel setups. Even when the goal is mainly cosmetic, wheel diameter, tire width, and sidewall profile should stay coordinated so the finished car looks intentional. Owners chasing a very specific original-delivery look may also want to reference marque-specific documentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2021 Lexus LC500?
Yes, modifications can affect tire fitment on a 2021 Lexus LC500, especially because the car already uses staggered sizes and two possible wheel diameters. Aftermarket wheels, different wheel widths, suspension changes, or ride-height changes can alter the space available for the correct front and rear tire combinations.
Any modified LC500 should be checked for wheel diameter, wheel width, and clearance at steering lock and through suspension travel before a new set is chosen. Even when the sidewall size looks familiar, a changed wheel or chassis setup can shift the fitment requirements. Matching axle position remains just as important as confirming basic size.
What should I inspect before driving a 2021 Lexus LC500 on new tires?
Before driving a 2021 Lexus LC500 on new tires, confirm that each tire matches the correct axle position and wheel diameter, then inspect inflation, bead seating, and basic clearance. It also makes sense to look over the existing wheels for damage and check that the front and rear sizes have not been mixed during installation.
A short post-installation inspection is worthwhile after the first drive as well. Recheck pressure, look for any signs of rubbing, and make sure the car feels consistent from front to rear. On a staggered setup like the LC500's, even a single tire mounted in the wrong position can affect both appearance and road behavior.
How often should tires on a 2021 Lexus LC500 be inspected?
Tires on a 2021 Lexus LC500 should be inspected regularly, with extra attention if the car is driven infrequently or stored for long periods. Look for uneven wear, cuts, sidewall cracking, bulges, punctures, and pressure loss, and check all four positions because the front and rear sizes are different.
Routine inspection is especially important on a low-mileage grand touring car that may spend more time parked than commuting. Pressure changes and age-related deterioration can show up before tread is worn out. A quick visual check before longer drives, along with periodic pressure verification, helps catch problems before they affect comfort or safety.
