The 2019 Mercedes-Benz SLC300 represents the final years of Mercedes-Benz’s compact rear-drive roadster formula, blending modern grand-touring comfort with the shorter-wheelbase agility that made the SLK and SLC lineage appealing to open-top drivers. Tire selection on this car is centered on staggered radial fitments, with narrower front sizes and wider rear sizes offered in either 17-inch or 18-inch combinations. That makes the real decision less about vintage-style construction and more about matching the correct wheel diameter, front-versus-rear sizing, and the tire character you want. Blackwall performance radials dominate, with additional sidewall styling available in selected 17-inch front sizes.
Which Tire Size Is Right for The 2019 Mercedes-Benz SLC300
The 2019 Mercedes-Benz SLC300 uses four primary tire sizes, and the correct combination depends first on whether the car is on 17-inch or 18-inch wheels and whether you are replacing the front or rear tires. All four are radial metric sizes in a staggered setup, so the key is confirming wheel diameter and axle position before comparing brands, sidewall styles, or tire series.
225/40R18 is a metric radial size in which 225 identifies the nominal section width in millimeters, 40 is the aspect ratio, R denotes radial construction, and 18 is the rim diameter in inches. On the 2019 Mercedes-Benz SLC300, this is a front fitment used with the 18-inch wheel setup. Available choices include BFGoodrich and Nitto blackwall performance-oriented series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This size matters when keeping the intended 18-inch front stagger and avoiding confusion with the wider rear 18-inch tire.
225/45R17 follows the same modern metric radial format, with a 225-millimeter nominal section width, a 45-series profile, radial construction, and a 17-inch rim diameter. On the 2019 Mercedes-Benz SLC300, this is the front size for the 17-inch wheel package. Product selection is broader here, with BFGoodrich, Nitto, and Pro-Trac options, mostly in blackwall form but also with raised white letter and redline sidewall treatments. This size is the right place to focus when the car has 17-inch front wheels and the goal is to balance fitment accuracy with a preferred visual style.
245/35R18 is a modern metric radial size where 245 is the nominal section width in millimeters, 35 is the aspect ratio, R marks radial construction, and 18 indicates the wheel diameter. On the 2019 Mercedes-Benz SLC300, this wider size serves the rear position in the 18-inch staggered setup. The available product range is narrower, centered here on a blackwall BFGoodrich g-Force Phenom T/A. This is the size to verify when replacing rear 18-inch tires, especially since the front 18-inch size is different and should not be treated as interchangeable.
245/40R17 uses the same metric radial sizing system, with a 245-millimeter nominal section width, 40-series profile, radial construction, and a 17-inch rim diameter. For the 2019 Mercedes-Benz SLC300, this is the rear counterpart to the 17-inch front setup. BFGoodrich offers this size across several g-Force series, all in blackwall form, giving buyers some flexibility within the correct rear fitment. Choosing this size starts with confirming that the car is on 17-inch rear wheels and maintaining the staggered relationship between front and rear tire widths.
Sub-model fitment on the 2019 Mercedes-Benz SLC300 is straightforward in one sense and axle-specific in another: the covered front and rear positions use different tire sizes. Checking whether you are replacing front tires or rear tires matters just as much as confirming whether the car has 17-inch or 18-inch wheels.
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2019 Mercedes-Benz SLC300 Base Front
The 2019 Mercedes-Benz SLC300 Base Front uses the narrower front tire sizes in either the 17-inch or 18-inch wheel package, and both are radial metric fitments. Front-tire selection should stay focused on the correct wheel diameter first, then on the preferred brand, tire series, and sidewall treatment where those options are available.
The 2019 Mercedes-Benz SLC300 Base Rear uses the wider rear tire sizes that complete the staggered setup, again with separate 17-inch and 18-inch radial fitments. Rear-tire replacement should preserve the correct width and rim diameter relationship rather than treating the rear size as interchangeable with the front.
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 2019 Mercedes-Benz SLC300 Tires for Sale
Available 2019 Mercedes-Benz SLC300 tire choices center on radial blackwall performance tires from BFGoodrich, Nitto, and Pro-Trac. Depending on size, buyers can compare g-Force and NT555 series options, with raised white letter and redline styling also appearing in selected 225/45R17 front tires.
These FAQs focus on the exact tire sizes used on the 2019 Mercedes-Benz SLC300, including front and rear staggered fitment, 17-inch versus 18-inch wheel setups, sidewall choices, product selection, and the basic checks worth making before road use.
Tire Size & Fitment
What tire size fits a 2019 Mercedes-Benz SLC300?
The 2019 Mercedes-Benz SLC300 uses a staggered tire setup rather than one size at all four corners. Front tire sizes are 225/45R17 or 225/40R18, while rear tire sizes are 245/40R17 or 245/35R18, and all are radial metric fitments.
The first step is confirming both wheel diameter and axle position. A 17-inch car uses the 225/45R17 front and 245/40R17 rear combination, while an 18-inch car uses 225/40R18 front and 245/35R18 rear. If the car has aftermarket wheels, verify the actual mounted sizes before replacing tires.
What size rim does a 2019 Mercedes-Benz SLC300 use?
The 2019 Mercedes-Benz SLC300 uses either 17-inch or 18-inch rims, depending on the wheel package on the car. The 225/45R17 and 245/40R17 sizes pair with 17-inch wheels, while the 225/40R18 and 245/35R18 sizes pair with 18-inch wheels.
That rim diameter check comes before any brand or tire-series decision, because the tire must match the wheel exactly. It also helps to confirm front and rear wheel widths if the car has been changed from stock-style sizing, since staggered roadsters can look similar at a glance while still using different front and rear specifications.
Why does the 2019 Mercedes-Benz SLC300 have more than one tire size?
The 2019 Mercedes-Benz SLC300 has more than one tire size because it uses a staggered layout and was fitted with either 17-inch or 18-inch wheel combinations. The front tires are narrower than the rear tires, so each wheel package uses a matched front size and a matched rear size.
That means tire replacement is not just a matter of matching the model year and nameplate. The car’s actual wheel setup has to be confirmed first, and the front and rear positions should be checked separately. Mixing the wrong diameter or using a front size on the rear can upset fitment and clearance.
Choosing the Right Tire
What should I consider when choosing a 2019 Mercedes-Benz SLC300 tire?
Start with the correct size for the position on the car: front or rear, and 17-inch or 18-inch. Since the 2019 Mercedes-Benz SLC300 uses only radial metric fitments, the next decisions are brand, tire series, sidewall style where available, and whether the wheel width matches the tire’s intended range.
It helps to think about how the car is actually used. A roadster driven mostly for fair-weather touring may call for different priorities than one used more aggressively. Staying with the proper staggered sizing matters more than chasing appearance alone, especially if the car has non-original wheels or prior suspension changes.
What sidewall styles are available for 2019 Mercedes-Benz SLC300 tires?
Most available 2019 Mercedes-Benz SLC300 tires use a blackwall sidewall, which is the dominant look across the front and rear sizes. In the 225/45R17 front size, additional sidewall choices include raised white letter and redline treatments through Pro-Trac Street Pro III options.
Those sidewall differences are mainly an appearance decision, but they still need to be tied to the correct size and wheel package. A distinctive sidewall on the front does not mean the same styling exists in the matching rear size, so it is worth checking the full staggered set before settling on a visual theme.
What brands offer tires for the 2019 Mercedes-Benz SLC300?
Available tire brands for the 2019 Mercedes-Benz SLC300 include BFGoodrich, Nitto, and Pro-Trac, depending on the specific size. BFGoodrich appears across all four primary sizes, while Nitto and Pro-Trac are available in selected front fitments rather than across the entire staggered range.
Brand choice should be considered alongside size availability, tire series, and sidewall presentation. On a staggered car like the SLC300, the practical question is not simply which brand you prefer, but whether the same brand and tire family are available in the front and rear sizes your wheel package requires.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2019 Mercedes-Benz SLC300?
Yes, modifications can affect tire fitment on a 2019 Mercedes-Benz SLC300, especially because the car uses a staggered setup with distinct front and rear sizes. Aftermarket wheels, offset changes, suspension lowering, or body alterations can all change clearance around the tire even when the nominal size looks close.
A modified SLC300 should be checked at full steering lock and through normal suspension travel before assuming a replacement tire will clear. Wheel diameter is only one part of the equation. Wheel width, offset, and the actual tire chosen within the correct size range can all influence rubbing or stance-related issues.
What should I inspect before driving a 2019 Mercedes-Benz SLC300 on new tires?
Before driving a 2019 Mercedes-Benz SLC300 on new tires, confirm that the front and rear sizes are mounted in the correct positions and that the tires match the car’s 17-inch or 18-inch wheel package. Check inflation, bead seating, valve condition, and visible clearance around suspension, fender, and steering components.
A short, careful road test is the best next step. Pay attention to vibration, pulling, warning lights, or any sign of contact under turning or compression. On a low-profile staggered setup, even small wheel or alignment issues tend to show up quickly, so it is worth catching them before a longer highway drive.
What should I check before a longer drive in a 2019 Mercedes-Benz SLC300?
Before a longer drive, inspect tread and sidewalls for cuts, bulges, cracking, or uneven wear, and make sure all four tires are holding pressure consistently. On the 2019 Mercedes-Benz SLC300, it is also important to confirm that the correct front and rear sizes remain in place after any recent rotation attempt or service work.
Longer trips put more heat and sustained load into the tire, so small issues become easier to notice and more important to address. It also helps to check the condition of the wheels and suspension, especially on a car with low-profile 17-inch or 18-inch fitments where impact damage and alignment sensitivity can matter.
