The 2018 Lexus GS F sits in a narrow and appealing corner of the modern performance-sedan world, blending Lexus refinement with a naturally aspirated V8 and a chassis tuned for serious road use. It is also a car where tire fitment matters immediately, because the staggered setup uses 255/35R19 tires in front and 275/35R19 tires in the rear. Both are radial 19-inch fitments, so the decision is less about vintage-style construction and more about matching the car’s front-to-rear sizing, handling balance, and intended use. Available choices center on blackwall performance radials from BFGoodrich and Nitto, with differences in tire series, load specification, and rim-width compatibility worth checking before replacement.
Which Tire Size Is Right for The 2018 Lexus GS F
The 2018 Lexus GS F uses two primary tire sizes rather than one, with a staggered 19-inch radial setup that separates front and rear fitment. The first step is identifying position on the car, because 255/35R19 is used at the front and 275/35R19 is used at the rear, and keeping those sizes in their correct locations is central to proper replacement selection.
255/35R19 is a metric radial size in which 255 refers to nominal section width in millimeters, 35 is the aspect ratio, R identifies radial construction, and 19 is the wheel diameter in inches. On the 2018 Lexus GS F, this is the front tire size in the staggered setup. Available choices in this size focus on blackwall performance radials from BFGoodrich across g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A lines. This size should be evaluated as the front-position fitment, with attention to wheel width, load specification, and the driving role expected from the tire.
275/35R19 is a metric radial size where 275 indicates nominal section width in millimeters, 35 is the aspect ratio, R marks radial construction, and 19 designates the wheel diameter. On the 2018 Lexus GS F, this is the rear tire size and it carries the wider half of the car’s staggered fitment. Product choices include blackwall radials from BFGoodrich and Nitto, with several performance-oriented series available. This size belongs in the rear position, so replacement should be based on the actual rear wheel setup and on maintaining the intended front-to-rear sizing relationship.
Sub-model fitment on the 2018 Lexus GS F is straightforward, but the car still uses different tire sizes by axle position. Checking whether you are replacing the front or rear tire matters more than trim variation, because the GS F Base front and rear do not share the same size.
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2018 Lexus GS F Base Front
The 2018 Lexus GS F Base Front uses the narrower half of the car’s staggered radial fitment on a 19-inch wheel. Tire selection here should focus on the correct front size, wheel-width compatibility, and choosing among the available blackwall performance series without mixing up front and rear applications.
The 2018 Lexus GS F Base Rear uses the wider rear radial size on a 19-inch wheel. That makes rear tire selection a matter of matching the correct rear fitment first, then comparing available performance tire series and verifying compatibility with the actual rear wheel 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 2018 Lexus GS F Tires for Sale
Available 2018 Lexus GS F tire choices center on blackwall 19-inch radials, with BFGoodrich covering both front and rear sizes and Nitto appearing in the rear fitment. The main differences are tire series, load specification where stated, weight, and rim-width compatibility.
These FAQs focus on the staggered 2018 Lexus GS F setup, including front and rear tire sizing, 19-inch rim fitment, available radial choices, appearance considerations, and the checks worth making before road use or wheel changes.
Tire Size & Fitment
What tire size fits a 2018 Lexus GS F?
The 2018 Lexus GS F uses a staggered tire setup with two sizes: 255/35R19 in the front and 275/35R19 in the rear. Both are radial tires mounted on 19-inch wheels, so this car does not use the same size at all four corners.
That means replacement starts with confirming position on the car before selecting a tire. A front tire should be matched to the 255/35R19 fitment, while a rear tire should be matched to 275/35R19, and owners should also confirm the actual wheel setup if the car has been changed from stock sizing.
What size rim does a 2018 Lexus GS F use?
Both tire sizes used on the 2018 Lexus GS F are built for 19-inch rims. The front 255/35R19 and rear 275/35R19 share the same wheel diameter, even though the rear tire is wider than the front.
Wheel diameter is only part of the fitment picture, so it is still important to verify wheel width before choosing a replacement tire. The available products show different approved rim-width ranges by size, which matters on a performance sedan that depends on the correct front-to-rear tire and wheel relationship.
Do all 2018 Lexus GS F sub-models use the same tire size?
The 2018 Lexus GS F Base does not use one single tire size at every corner. The front position uses 255/35R19, while the rear position uses 275/35R19, so the fitment difference is by axle rather than by a separate trim package.
That makes the buying decision fairly clear: identify whether the tire is for the front or rear before comparing brands or tire series. Mixing up the two sizes can affect fitment and the intended staggered setup, especially if the car is being serviced one axle or one tire at a time.
Choosing the Right Tire
What should I consider when choosing a 2018 Lexus GS F tire?
Start with the correct position-specific size, since the 2018 Lexus GS F uses 255/35R19 in front and 275/35R19 in the rear. From there, compare radial tire series, approved rim-width range, load specification where stated, and whether the tire matches the kind of street use expected from the car.
A useful comparison goes beyond the size printed on the sidewall. Owners should make sure the wheel width is appropriate for the selected tire, keep the front and rear sizing relationship intact, and avoid choosing solely by brand name when series design, load details, and actual wheel setup can change the outcome.
What sidewall styles are available for 2018 Lexus GS F tires?
The available tire choices for the 2018 Lexus GS F use a blackwall sidewall style in both the front and rear sizes. That gives the car a clean, modern performance look that suits the GS F’s factory-era character without introducing whitewall or raised-letter styling.
Since the sidewall presentation is consistent across the available products, the bigger selection factors become tire series, wheel-width compatibility, and front-versus-rear sizing. For most owners, appearance choice here is straightforward, leaving the real decision centered on how the tire’s specifications align with the car’s staggered setup.
What brands offer tires for the 2018 Lexus GS F?
BFGoodrich and Nitto both appear in the available tire choices for the 2018 Lexus GS F. BFGoodrich covers the front 255/35R19 size and also offers several options in the rear 275/35R19 size, while Nitto appears in the rear fitment.
Brand alone should not decide the purchase on a staggered performance sedan. It is better to compare which size position is being replaced, which tire series is under consideration, and whether the selected tire matches the wheel-width and load details relevant to that axle of the car.
Restoration & Appearance
Which tire should I choose for a period-style 2018 Lexus GS F?
A period-style approach on a 2018 Lexus GS F usually means staying with the original-size format and preserving the car’s staggered modern radial look. That points to 255/35R19 in front and 275/35R19 in the rear, with blackwall performance tires that suit the sedan’s contemporary factory-era presentation.
Because this is a modern high-performance Lexus rather than an earlier collector car with wide sidewall or stripe choices, appearance and fitment are closely linked. Keeping the correct low-profile sizing and front-to-rear width relationship generally does more for an authentic presentation than chasing cosmetic differences alone.
Does correct tire fitment matter for a 2018 Lexus GS F restoration or preservation build?
Correct tire fitment matters on a 2018 Lexus GS F because the car’s visual stance and driving balance depend on its staggered 19-inch setup. Using the right front and rear sizes helps preserve the appearance intended for the model and keeps the car aligned with its original fitment format.
That does not mean every tire in the size will present the same way, but the correct sizing baseline is still the first priority. Anyone preserving a low-mile or carefully maintained GS F should verify wheel dimensions and avoid casual substitutions that change the car’s proportion or alter the front-to-rear fitment relationship.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Lexus GS F?
Yes, modifications can affect tire fitment on a 2018 Lexus GS F even when the replacement tire uses the correct basic size. Aftermarket wheels, altered wheel widths, suspension changes, or changes in ride height can all influence how a 255/35R19 front or 275/35R19 rear tire sits on the car.
The safest approach is to verify the actual wheel dimensions and check clearance before ordering replacements. A tire that suits one 19-inch wheel may not suit another if width or offset has changed, and staggered applications leave less room for guesswork than a same-size setup at all four corners.
What should I inspect before driving a 2018 Lexus GS F on new tires?
Before driving a 2018 Lexus GS F on new tires, inspect wheel condition, confirm the front and rear tires are in the correct positions, and make sure inflation is set appropriately for the tire being used. It also helps to check for visible issues such as shipping damage, bead seating problems, or contact marks after installation.
A short post-installation inspection is just as important on a performance sedan. Look for unusual rubbing during steering or compression, confirm there is no air loss, and recheck torque and pressure after the first miles so the staggered setup remains stable and predictable in normal road use.
How often should tires on a 2018 Lexus GS F be inspected?
Tires on a 2018 Lexus GS F should be inspected regularly, not just when tread looks worn. A modern performance car with low-profile tires benefits from routine checks for uneven wear, cuts, bulges, sidewall damage, and pressure loss, especially if the car sees spirited weekend driving or long periods of parking.
Inspection intervals should tighten if the car has aftermarket wheels, alignment changes, or limited annual mileage. Low-use vehicles can still develop age-related condition issues, so checking the tires before longer drives and at normal service intervals is a practical habit even when the GS F is not driven every day.
