Mercedes-Benz CLK63 AMG Tires

Mercedes-Benz CLK63 AMG was the high-performance AMG version of the CLK coupe and cabriolet, sold during the late 2000s as part of Mercedes-Benz’s naturally aspirated V8 performance era. It blends modern grand touring refinement with serious factory horsepower, which makes tire choice more exacting than it is on an ordinary CLK. Mercedes-Benz CLK63 AMG fitment is not a one-size question, because the model used both 18-inch and 19-inch rim diameters within this short production span, and 2008 adds a broader staggered range than 2007. The first step is to confirm whether the specific Mercedes-Benz CLK63 AMG carries 18-inch or 19-inch wheels before narrowing the correct size.

Mercedes-Benz CLK63 AMG Tire Size Guide

Mercedes-Benz CLK63 AMG production changed from 18-inch to both 18-inch and 19-inch wheel fitments in 2008, so rim diameter is the first fitment detail to verify on the car itself. Across 2007 to 2008, this model group uses 4 distinct tire sizes. The listed sizes are modern metric radial sizes, with section width in millimeters, sidewall aspect ratio as a percentage, and the final number showing rim diameter in inches.

225/40R182007-2008Metric radial

225/40R18 is used on Mercedes-Benz CLK63 AMG models in 2007 and 2008 as part of the 18-inch fitment set. The code indicates a 225 mm section width, a 40-series aspect ratio, radial construction, and an 18-inch rim diameter. Choose this size only for a car already fitted with the corresponding 18-inch wheel, and match it to an approved rim width range such as 7.5 to 9.0 inches.

255/35R182007-2008Metric radial

255/35R18 is used on Mercedes-Benz CLK63 AMG models in 2007 and 2008 as the wider 18-inch companion size in the staggered setup. The code indicates a 255 mm section width, a 35-series aspect ratio, radial construction, and an 18-inch rim diameter. Choose this size when the car uses the matching wider 18-inch wheel, and confirm the wheel width falls within the listed product ranges, generally from about 8.5 to 10.0 inches.

265/30R192008Metric radial

265/30R19 appears on Mercedes-Benz CLK63 AMG in 2008 as part of the 19-inch fitment set. The code indicates a 265 mm section width, a 30-series aspect ratio, radial construction, and a 19-inch rim diameter. Choose this size only if the car is fitted with the 19-inch wheel package, since it is not interchangeable with the 18-inch sizes listed for earlier and alternate configurations.

285/30R192008Metric radial

285/30R19 appears on Mercedes-Benz CLK63 AMG in 2008 as the wider 19-inch companion size in the staggered arrangement. The code indicates a 285 mm section width, a 30-series aspect ratio, radial construction, and a 19-inch rim diameter. Choose this size only for the matching wider 19-inch wheel, and verify the car’s front and rear sizes as a set before selecting replacement tires.

Buyers with a 2008 Mercedes-Benz CLK63 AMG need to identify the specific wheel configuration before selecting a size, because that year includes a rim-diameter split between 18-inch and 19-inch fitments.

Mercedes-Benz CLK63 AMG Tires by Year

Mercedes-Benz CLK63 AMG production changed from 18-inch to both 18-inch and 19-inch wheel fitments in 2008, so confirm which rim diameter the specific car carries before selecting a tire. In 2008, more than two sizes are listed because that year includes a rim-diameter split between 18-inch and 19-inch configurations. The year listing below helps separate the 2007 18-inch setup from the broader 2008 fitment range.

Best Mercedes-Benz CLK63 AMG Tires for Sale

Available Mercedes-Benz CLK63 AMG tires cover 2 brands and 8 products across the listed sizes. All listed options are radial blackwall tires, so the key first check is confirming the correct size and whether the car is on 18-inch or 19-inch rims.

225/40R18 Products

These are the available products for 225/40R18.

Radial g-Force

BFG g-Force COMP-2 A/S | 225/40ZR18 92W XL

BFGoodrich - g-Force Comp 2 AS

SidewallBlackwall
Rim Diameter18 in
Rim Width7.5 - 9.0 in
Weight25 lb
Max Load—
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Radial g-Force

BFG g-Force Sport COMP-2 | 225/40ZR18 88W

BFGoodrich - g-Force Sport Comp 2

SidewallBlackwall
Rim Diameter18 in
Rim Width7.5 - 9.0 in
Weight25 lb
Max Load1235@51
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Radial Nitto

Nitto NT555 G2 | 225/40ZR18 XL 92W

Nitto - Nitto NT555 G2

SidewallBlackwall
Rim Diameter18 in
Rim Width7.5-(8.0)-9.0 in
Weight23.89 lb
Max Load1,389 @ 50 psi
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Radial Phenom

BFGoodrich g-Force Phenom T/A | 225/40ZR18 92W

BFGoodrich - g-Force Phenom T/A

SidewallBlackwall
Rim Diameter18 in
Rim Width7.5 - 9 inches in
Weight24.01 lb
Max Load1389 lbs at 50 psi
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255/35R18 Products

These are the available products for 255/35R18.

Radial g-Force

BFG g-Force Sport COMP-2 | 255/35ZR18 90W

BFGoodrich - g-Force Sport Comp 2

SidewallBlackwall
Rim Diameter18 in
Rim Width8.5 - 10.0 in
Weight27 lb
Max Load1323@51
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Radial g-Force

BFG g-Force COMP-2 A/S | 255/35ZR18 94W XL

BFGoodrich - g-Force Comp 2 AS

SidewallBlackwall
Rim Diameter18 in
Rim Width7.0 - 8.5 in
Weight27 lb
Max Load—
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Radial Nitto

Nitto NT555 G2 | 255/35ZR18 XL 94W

Nitto - Nitto NT555 G2

SidewallBlackwall
Rim Diameter18 in
Rim Width8.5-(9.0)-10.0 in
Weight26.61 lb
Max Load1,477 @ 50 psi
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Radial Phenom

BFGoodrich g-Force Phenom T/A | 255/35ZR18 94W

BFGoodrich - g-Force Phenom T/A

SidewallBlackwall
Rim Diameter18 in
Rim Width8.5 - 10 inches in
Weight25.68 lb
Max Load1477 lbs at 50 psi
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Frequently Asked Questions

The FAQ below sorts out the key Mercedes-Benz CLK63 AMG tire questions, especially the 18-inch versus 19-inch split in 2008, how the staggered sizes work, and what the currently listed radial replacement options mean in practical terms.

Size Basics & Fitment

Mercedes-Benz CLK63 AMG uses four listed tire sizes across 2007 and 2008: 225/40R18, 255/35R18, 265/30R19, and 285/30R19. The 2007 Mercedes-Benz CLK63 AMG uses the 18-inch pair, 225/40R18 and 255/35R18. The 2008 Mercedes-Benz CLK63 AMG can use either the same 18-inch pair or the 19-inch pair, 265/30R19 and 285/30R19. All currently listed products for the available sizes are radial tires.

That means the correct answer depends on both model year and the wheel package actually fitted to the car. Start by checking the tire sidewall already on the vehicle and confirming whether the car is on 18-inch or 19-inch rims, then verify whether the axle uses the narrower or wider staggered companion size. On a performance Mercedes-Benz CLK63 AMG, replacing only one size without confirming the full front-to-rear setup can lead to an incorrect match.

A 2008 Mercedes-Benz CLK63 AMG has four tire sizes listed because that year includes two separate staggered wheel packages. One setup uses 18-inch wheels with 225/40R18 and 255/35R18, while the other uses 19-inch wheels with 265/30R19 and 285/30R19. The split is not just width-related; it also reflects a change in rim diameter between the two configurations.

That makes 2008 the year where checking the actual wheel on the car matters most. A buyer should confirm the wheel diameter first, then verify front and rear tire sizes individually rather than assuming all 2008 Mercedes-Benz CLK63 AMG models used the same package. If the car has been modified or the wheels have been changed at some point, the current setup may differ from what was originally fitted.

Mercedes-Benz CLK63 AMG uses 18-inch and 19-inch rim diameters within the listed production span. The 2007 Mercedes-Benz CLK63 AMG uses 18-inch wheel fitments, while 2008 includes both 18-inch and 19-inch options. The 18-inch setup pairs 225/40R18 with 255/35R18, and the 19-inch setup pairs 265/30R19 with 285/30R19.

Rim diameter is the critical first check because none of these sizes interchange across wheel diameters. A Mercedes-Benz CLK63 AMG on 18-inch wheels needs the correct 18-inch front and rear pairing, while a car on 19-inch wheels needs the matching 19-inch pairing. Confirm the wheel itself and read the tire sidewall before selecting replacements, especially on a car that may have had aftermarket or later-model wheel changes.

Buying the Right Tire

The quickest way to confirm the correct tire size for a 2007 or 2008 Mercedes-Benz CLK63 AMG is to check the current tire sidewalls and match them to the wheel diameter on the car. A 2007 Mercedes-Benz CLK63 AMG uses the 18-inch pair, while a 2008 Mercedes-Benz CLK63 AMG may use either the 18-inch pair or the 19-inch pair. Front and rear sizes are staggered, so the narrower and wider axle sizes should be verified separately.

That process matters because the listed sizes are close in profile but are not interchangeable across different wheel diameters or axle positions. Confirm the wheel diameter first, then check that the replacement tire’s approved rim-width range suits the wheel on the car. On a Mercedes-Benz CLK63 AMG, a correct front-and-rear match preserves the intended stance and handling balance better than choosing by year alone.

The currently listed Mercedes-Benz CLK63 AMG tires are all blackwall designs. That applies across the available 18-inch radial options in 225/40R18 and 255/35R18. No alternate sidewall style is listed among the current products for these sizes.

Blackwall styling suits the late-model AMG character of the Mercedes-Benz CLK63 AMG and keeps the appearance in line with the car’s original high-performance look. If appearance matters as much as fitment, sidewall style is one less variable to sort out here, allowing you to focus on size, wheel diameter, and approved rim-width range. The more important choice on this application is selecting the correct staggered pair for the car’s wheels.

The listed Mercedes-Benz CLK63 AMG tire options come from BFGoodrich and Nitto. BFGoodrich appears in several series, including g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A, while Nitto is represented by the NT555 G2. All of the current options shown for this application are radial blackwall performance tires.

That gives a Mercedes-Benz CLK63 AMG owner a choice between more than one brand while staying within the listed fitment range. The practical comparison points are the exact size needed, the wheel width on the car, and whether you want to keep the same tire model front and rear where both sizes are offered in a matching family. Checking those details is more important than choosing by brand name alone.

The listed Mercedes-Benz CLK63 AMG tire series include BFGoodrich g-Force Comp 2 AS, BFGoodrich g-Force Sport Comp 2, BFGoodrich g-Force Phenom T/A, and Nitto NT555 G2. All are modern radial performance-oriented series rather than period-style collector tire lines. Within the listed sizes, the main difference is the specific tire family available from each brand, not a change from bias-ply to radial or from one sidewall style to another.

For a Mercedes-Benz CLK63 AMG owner, that means the first decision is still fitment, not construction type. Once the correct size and wheel diameter are confirmed, the series choice becomes a matter of matching front and rear availability and selecting the performance tire family that best suits how the car is actually driven. Keeping the same series across the staggered setup usually makes for a more consistent feel than mixing unrelated models.

Maintenance & Longevity

A stored Mercedes-Benz CLK63 AMG should be kept in a cool, dry, dark garage with the tires clean and properly inflated. Long periods on one contact patch can create flat spotting, especially on low-profile performance radials such as the sizes used on this model. Avoid parking on damp soil, bare concrete with standing moisture, or surfaces contaminated by oil or solvents.

For practical collector-car storage, move the Mercedes-Benz CLK63 AMG periodically so the weight does not rest on the same part of each tire for months at a time. If the car will sit for an extended season, many owners also reduce strain by using tire cradles or lifting the car appropriately. Good storage conditions matter as much as tread depth when the car sees intermittent use.

Tires on a Mercedes-Benz CLK63 AMG should be inspected regularly, even if the car is not driven often. A visual check before every drive and a more thorough inspection several times a year is a sensible routine for a high-performance collector car. On low-profile radial tires, pay close attention to sidewall condition, tread wear pattern, punctures, and any signs of impact damage from potholes or curbing.

Frequent inspection is especially useful on a Mercedes-Benz CLK63 AMG because staggered setups can hide wear issues if only one axle is checked. Uneven wear may point to alignment, suspension, or inflation problems rather than a tire defect alone. Catching those issues early helps preserve both tire life and the sharp steering response expected from an AMG chassis.

Tires on a Mercedes-Benz CLK63 AMG should be replaced when age, cracking, impact damage, vibration, or hardening of the rubber makes them questionable, even if the tread still looks deep. Collector cars often age tires out before they wear them out. Any tire that shows structural concerns, repeated air loss, or visible deterioration deserves replacement rather than continued service.

That matters on a Mercedes-Benz CLK63 AMG because performance tires can look acceptable at a glance yet deliver far less grip and stability once the rubber has aged. If the car is driven only occasionally, build replacement decisions around condition and age as well as mileage. A careful inspection by a tire professional is wise any time an older tire has been in long-term storage or service.

Restoration & Authenticity

Mercedes-Benz CLK63 AMG was fitted within the listed size range of 225/40R18 and 255/35R18 for 2007, with 2008 also showing a 19-inch set of 265/30R19 and 285/30R19. The currently available replacement products in the listed inventory are modern radial blackwall performance tires from BFGoodrich and Nitto. No original-equipment brand claim should be inferred from those current replacement offerings.

For restoration-minded owners, the important point is preserving the correct size pairing and wheel diameter for the specific Mercedes-Benz CLK63 AMG rather than assuming one universal original setup. Checking factory literature, option-code information, and marque-specific references is the best way to confirm how an individual car left the factory. That is especially useful for 2008 cars, where more than one wheel package appears in the fitment range.

Correct tire fitment does affect how a Mercedes-Benz CLK63 AMG is viewed by knowledgeable buyers, collectors, and judges because wheel diameter, staggered sizing, and overall stance are part of the car’s character. A car wearing the proper size combination for its wheel package generally presents as more coherent and better cared for than one wearing mismatched or improvised sizes. On modern AMG models, correct fitment also supports the driving balance the chassis was built around.

For owners concerned with value, the safest path is to keep the Mercedes-Benz CLK63 AMG on the proper front and rear size pairing for the wheels actually fitted to the car. If the car is shown competitively, marque clubs and AMG-focused communities are useful references for what is considered correct. Even outside formal judging, buyers notice when the tire and wheel setup looks consistent with the car’s intended specification.

Blackwall is the listed sidewall style for the available Mercedes-Benz CLK63 AMG replacement tires. That aligns with the performance-oriented, late-model AMG appearance and is the appropriate visual direction for this application. No whitewall or other decorative sidewall treatment appears among the current listed options for the available sizes.

For a proper-looking Mercedes-Benz CLK63 AMG restoration or preservation, keeping the car on blackwall tires helps maintain the understated factory-performance look. The finer point is choosing the correct size pair and wheel diameter first, then selecting a blackwall radial that suits the wheels on the car. Appearance and fitment work together here; the right sidewall style cannot compensate for the wrong wheel-size package.

Safety & Road Use

The listed Mercedes-Benz CLK63 AMG tire options are modern radial road tires in the available 18-inch sizes, so they are fundamentally intended for public-road use when properly fitted, inflated, and maintained. Safety depends on using the correct size for the wheel diameter and axle position, and on the overall condition of the tire itself. A Mercedes-Benz CLK63 AMG with mismatched sizes or deteriorated tires should not be treated as road-ready simply because tread remains.

Public-road use also depends on the rest of the car, including alignment, suspension condition, brakes, and wheel integrity. Because Mercedes-Benz CLK63 AMG uses a staggered high-performance setup, checking that both front and rear sizes are correct is part of a safe road-use routine. A proper fitment match is the foundation; after that, condition and maintenance determine whether the car is truly ready to drive.

Before driving a Mercedes-Benz CLK63 AMG, check tire pressure, sidewall condition, tread condition, and confirm that the front and rear sizes match the wheel package on the car. Also inspect for cuts, bulges, punctures, and any signs that a low-profile tire has suffered impact damage. Because 2008 cars may be on either 18-inch or 19-inch wheels, wheel diameter should be confirmed along with the tire size markings.

That quick inspection helps prevent a common problem with enthusiast cars: assuming a low-mileage car is automatically ready for use. A Mercedes-Benz CLK63 AMG that has sat for long periods may have aged tires, flat spotting, or pressure loss even if it looks excellent cosmetically. Building a habit of checking the tires before each drive is one of the simplest ways to protect both the car and its occupants.

A Mercedes-Benz CLK63 AMG should only be driven at speeds appropriate to the exact tires fitted, their condition, and the conditions of the road. The listed products include performance-rated radial tires, but age, storage history, repairs, and inflation all affect what is prudent in real use. A tire that is the correct size but is old or damaged should not be relied on for the kind of speed the car is mechanically capable of reaching.

In practice, a Mercedes-Benz CLK63 AMG owner should treat tire condition as the limiting factor, not the engine output or badge. Even with modern radial replacements, high-speed use belongs only to tires that are correctly fitted, in sound condition, and supported by a well-sorted chassis. Conservative road speeds are the wise choice anytime a tire’s age, history, or condition is not fully established.