The 2020 Lexus RC300 sits in the modern luxury sport coupe category, blending sharp styling with a chassis setup that changes meaningfully between rear-wheel-drive and all-wheel-drive configurations. That matters at tire time, because this exact model uses more than one radial tire size and, in some versions, a staggered front-and-rear arrangement. The main decision is not simply choosing a tire brand, but confirming whether the car is running 18-inch or 19-inch wheels and whether it uses the same size at all four corners. Available choices center on blackwall performance-oriented radial tires, so selection comes down to matching the exact setup, wheel specifications, and intended road use.
Which Tire Size Is Right for The 2020 Lexus RC300
The 2020 Lexus RC300 uses three primary tire sizes, and the correct one depends on the exact drivetrain and wheel setup. Some versions use a square fitment with the same size at all four corners, while others use a staggered arrangement with different front and rear sizes. The first step is confirming whether the car has 18-inch or 19-inch wheels, then matching the tire size to the specific AWD, RWD, or F Sport configuration.
Fit(s): (AWD), (RWD) Front, F Sport (AWD), and F Sport (RWD) Front
Construction: Radial|Rim: 19 in
235/40R19 is a metric radial size in which 235 is the section width in millimeters, 40 is the aspect ratio, R identifies radial construction, and 19 is the rim diameter in inches. On the 2020 Lexus RC300, this size appears in 19-inch applications and can serve either as part of a staggered setup or, on some AWD and F Sport versions, as the main fitment. Current choices in this size center on BFGoodrich blackwall performance radials in the g-Force Phenom T/A series. It is the size to evaluate when the car is built around 19-inch front fitment and responsive modern coupe handling.
235/45R18 is a metric radial size with a 235-millimeter section width, a 45-series profile, radial construction, and an 18-inch rim diameter. For the 2020 Lexus RC300, this size is used on 18-inch square-fitment applications and also appears on certain AWD and RWD versions that do not use the wider staggered rear tire. BFGoodrich offers several blackwall choices here, including g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A. This size is the one to check when the car wears 18-inch wheels and uses the same tire size at all four corners.
265/35R19 is a metric radial size where 265 denotes section width in millimeters, 35 is the aspect ratio, R marks radial construction, and 19 is the wheel diameter. On the 2020 Lexus RC300, this is the wider 19-inch rear size used in staggered rear-wheel-drive and F Sport rear applications rather than a universal fitment across the model line. Available blackwall options include BFGoodrich g-Force Sport Comp 2, BFGoodrich g-Force Phenom T/A, and Nitto NT555 G2. It is the correct rear-size path to review when the coupe is set up with narrower front tires and wider rear tires.
Sub-model fitment matters on the 2020 Lexus RC300 because tire size changes with drivetrain and, in some cases, front-versus-rear position. Before choosing a tire, confirm whether the car is AWD or RWD, whether it is an F Sport, and whether it uses a square or staggered wheel package.
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2020 Lexus RC300 (AWD)
The 2020 Lexus RC300 (AWD) appears with both 235/40R19 and 235/45R18 radial fitments, making wheel diameter the key detail to confirm first. Once the 18-inch or 19-inch setup is verified, selection becomes a matter of choosing the right blackwall radial within that exact size.
The 2020 Lexus RC300 (RWD) uses 235/45R18 in a square radial fitment. That keeps sizing straightforward, so the focus shifts to comparing available tire series, checking wheel-width compatibility, and matching the tire to the coupe's intended street use.
The 2020 Lexus RC300 (RWD) Front uses 235/40R19 as the front tire size in a staggered radial setup. Tire selection should stay tied to the front axle position so the wheel diameter, front clearance, and overall front-to-rear balance remain consistent.
The 2020 Lexus RC300 (RWD) Rear uses the wider 265/35R19 radial size. That means rear-tire shopping should account for the staggered arrangement and keep the rear axle matched to the front size the car is already using.
The 2020 Lexus RC300 F Sport (AWD) uses 235/40R19 radial tires. Since this is a single-size fitment, the main choice is among the available blackwall performance tire options rather than sorting through multiple wheel diameters or front-and-rear differences.
The 2020 Lexus RC300 F Sport (RWD) Front uses 235/40R19 in the front position of a staggered setup. Keeping the front size exact is important for steering response, wheel compatibility, and preserving the intended relationship with the wider rear tire.
The 2020 Lexus RC300 F Sport (RWD) Rear uses 265/35R19 at the rear axle. This wider rear fitment should be chosen as part of the complete staggered package, with attention to the existing 19-inch wheel setup and the matching front size already on the car.
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 2020 Lexus RC300 Tires for Sale
Available 2020 Lexus RC300 tire choices are all blackwall radials, with BFGoodrich covering all three sizes and Nitto appearing in 265/35R19. The main comparison points in the product grid are tire series, wheel-width compatibility where stated, and whether the car uses the 18-inch square setup or the 19-inch staggered arrangement.
Common 2020 Lexus RC300 tire questions usually come down to identifying the correct size by sub-model, confirming 18-inch versus 19-inch wheels, and choosing among available radial tire series for square or staggered fitment.
Tire Size & Fitment
What tire size fits a 2020 Lexus RC300?
The 2020 Lexus RC300 uses 235/45R18, 235/40R19, and 265/35R19 tire sizes, depending on drivetrain and wheel setup. Some versions use the same size at all four corners, while RWD and F Sport staggered applications use 235/40R19 in front and 265/35R19 in the rear.
The key is matching the tire to the exact configuration already on the car. Start by confirming whether the RC300 is AWD or RWD, then check whether it wears 18-inch or 19-inch wheels and whether the front and rear tires are the same size or different.
What size rim does a 2020 Lexus RC300 use?
The 2020 Lexus RC300 uses either 18-inch or 19-inch rims, depending on the tire size and sub-model configuration. The 235/45R18 size fits an 18-inch rim, while both 235/40R19 and 265/35R19 are built for 19-inch rims.
Wheel diameter should be confirmed before comparing tires because the RC300 does not use one universal rim size across the model line. A quick check of the sidewall size already on the car usually settles the question, and staggered 19-inch setups also require verifying front-versus-rear sizing.
Why does the 2020 Lexus RC300 have more than one tire size?
The 2020 Lexus RC300 has more than one tire size because fitment changes with drivetrain, wheel package, and whether the car uses a square or staggered setup. Some RC300 versions use 235/45R18 on all four corners, while others move to 19-inch sizing with different front and rear tires.
That variation means tire selection is tied to the exact version of the car rather than the RC300 name alone. Checking the sub-model and the tire size currently mounted prevents mixing 18-inch and 19-inch fitments or ordering only one axle size for a staggered application.
Choosing the Right Tire
What should I consider when choosing a 2020 Lexus RC300 tire?
Start with the exact size and wheel arrangement on the car, because the 2020 Lexus RC300 may use 18-inch square fitment or 19-inch staggered front-and-rear sizing. All available choices here are radial blackwall tires, so the biggest decision after size is which tire series best matches how the coupe is driven.
Wheel-width compatibility is also worth checking, especially in 235/40R19, 235/45R18, and 265/35R19 applications where product specifications may vary. It also helps to compare load figures when stated, overall tire character, and whether the goal is everyday street use or a more performance-focused setup.
What sidewall styles are available for 2020 Lexus RC300 tires?
The available 2020 Lexus RC300 tire options shown here use a blackwall sidewall style. That gives the car a clean modern appearance that suits the RC300's sport coupe character without introducing raised white lettering, whitewalls, or other vintage-style sidewall treatments.
Since sidewall styling is consistent across the current options, the real distinctions are found in tire series, exact size, and wheel-fitment details. Buyers choosing for appearance can keep the look uniform by replacing tires in matching sets or by keeping front and rear products visually coordinated on staggered setups.
What brands offer tires for the 2020 Lexus RC300?
BFGoodrich and Nitto both appear in 2020 Lexus RC300 fitment, with BFGoodrich covering all three primary sizes and Nitto available in 265/35R19. BFGoodrich options include several g-Force series choices, while Nitto is represented here by the NT555 G2 in the wider rear 19-inch size.
Brand selection should still follow the vehicle's exact size and axle position before anything else. On a square 18-inch setup, the comparison stays within 235/45R18 options, while a staggered 19-inch car may require one brand or series in front and another in the rear only if the sizing and application line up correctly.
Restoration & Appearance
Does correct tire fitment matter for a 2020 Lexus RC300 restoration?
Yes, correct tire fitment still matters on a 2020 Lexus RC300 even though it is a modern performance-oriented coupe rather than a vintage restoration project. Using the proper 18-inch or 19-inch size and keeping square or staggered fitment consistent helps preserve the car's intended stance and visual balance.
Appearance on this generation is shaped more by wheel-and-tire proportion than by whitewall or redline styling. Anyone aiming to return the car to a stock-style presentation should verify the exact sub-model and wheel setup first, then keep the same size relationship front to rear where applicable.
How does tire construction affect the appearance of a restored 2020 Lexus RC300?
For the 2020 Lexus RC300, tire construction does not create a bias-ply-versus-radial appearance decision because the primary fitments are radial. The visual effect comes instead from maintaining the correct metric size, sidewall proportion, and whether the coupe uses an 18-inch square setup or a 19-inch staggered arrangement.
A restored or carefully detailed RC300 usually looks most consistent when the tires match the wheel package the car is built around. Keeping blackwall sidewalls uniform and avoiding mismatched front and rear sizing helps the car retain the crisp modern look that defines this generation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2020 Lexus RC300?
Yes, modifications can affect tire fitment on a 2020 Lexus RC300. Aftermarket wheels, changes in wheel width, offset differences, suspension lowering, or body alterations can all change how a 235/45R18, 235/40R19, or 265/35R19 tire sits relative to the fender, suspension, and steering components.
That matters even more on staggered 19-inch cars, where front and rear positions already use different sizing. A modified RC300 should have wheel diameter, axle position, and clearance checked carefully before replacement tires are chosen so the new setup does not create rubbing or mismatch issues.
What should I inspect before driving a 2020 Lexus RC300 on new tires?
Before driving a 2020 Lexus RC300 on new tires, inspect the wheel size, confirm the tire size at each axle, and make sure inflation is set appropriately for the installed tires and wheels. It also helps to look over the valve stems, check for visible wheel damage, and verify that all lug hardware is secure.
A short follow-up inspection after initial road use is worthwhile, especially on staggered 19-inch setups where front and rear sizes differ. Watch for any sign of rubbing during turns, unusual vibration, or uneven seating, and recheck pressure regularly as the tires begin settling into service.
What should I check before a longer drive in a 2020 Lexus RC300?
Before a longer drive in a 2020 Lexus RC300, check tread condition, sidewall condition, and air pressure on every tire, and verify that the front and rear sizes match the car's intended setup. Any tire showing cuts, bulges, irregular wear, or repeated air loss deserves attention before highway use.
Longer trips also make it worthwhile to confirm that the wheels are correctly matched to the installed tires and that there is no clearance issue under load or through full steering travel. On a car that sees limited use, tire age and general condition are just as important as remaining tread depth.
