Ferrari Tyre Markings Explained: What K1, K2 and K3 Mean

When replacing tyres on a Ferrari, the size is only one part of the story.

A tyre may say 245/35R20 or 305/30R20, but for Ferrari models, the marking after the tyre name can be just as important.

For Michelin tyres, Ferrari-approved original equipment markings commonly include:

K1, K2 and K3

These markings indicate that the tyre has been developed and approved for Ferrari use, rather than being a generic version of the same tyre pattern. Michelin explains that a manufacturer-developed marking means the tyre was designed and approved for a specific vehicle manufacturer or model, with Ferrari using K-marked Michelin tyres.

What Does K1 Mean on a Ferrari Tyre?

A K1 marking means the tyre is a Ferrari-specific version.

Michelin states that K1, K2 and K3 OE-marked tyres are designed specifically by Michelin engineers in close collaboration with Ferrari.

That means a Michelin Pilot Sport Cup 2 K1 is not simply “any Cup 2”. It is a Ferrari-oriented version designed around Ferrari requirements such as:

• steering response
• sidewall behaviour
• grip balance
• heat behaviour
• high-speed stability
• chassis and electronic system calibration

For Ferrari owners, this matters because the vehicle’s handling is engineered around a very specific tyre behaviour.

Real Ferrari Example: Michelin Pilot Sport Cup 2 K1

A Ferrari recently came into Autosport Tyre World for tyre replacement with the following setup:

Front: 245/35R20
Rear: 305/30R20
Tyre: Michelin Pilot Sport Cup 2 K1

Browse Michelin CUP2 options here:
https://autostw.com.au/search?type=product&q=CUP2

This size combination is also directly supported by Michelin’s Ferrari 488 Pista Cup 2 R K1 release, which listed:

Front: 245/35ZR20
Rear: 305/30ZR20

Michelin also noted that K1 or K2 markings indicate the tyre was designed specifically for a Ferrari model.

K1 vs K2 vs K3: Are They the Same?

No. K1, K2 and K3 are all Ferrari-related OE markings, but they should not automatically be treated as interchangeable.

Michelin lists Ferrari OE markings as K1, K2 and K3, but the exact marking depends on the tyre model, size and Ferrari application.

In simple terms:

K1
Often used as a Ferrari-specific OE tyre marking for certain Michelin performance tyres.

K2
Another Ferrari-approved version, sometimes used on later or different Ferrari applications.

K3
Also Ferrari-related, depending on the tyre model and size.

The key point:
Always match the correct tyre size, load rating, speed rating and OE marking for the specific Ferrari model.

Why Ferrari-Specific Tyres Matter

Ferrari vehicles are highly sensitive to tyre choice because the tyres affect:

• steering feel
• braking stability
• rear traction
• traction control behaviour
• suspension balance
• high-speed confidence

Michelin’s Ferrari 296 GTB tyre development notes explain that the tyres were specially designed in a joint project with Ferrari and identified by Ferrari’s “K” marking on the sidewall. Michelin described bespoke tyre design as necessary to achieve Ferrari’s required performance level.

That is why using the correct Ferrari-marked tyre is not just about branding. It is about keeping the car close to the way it was engineered to drive.

What About Porsche N0, N1 and Mercedes MO?

Ferrari is not the only manufacturer with OE tyre markings.

Porsche uses N-marked tyres, and Porsche states that only N-marked tyres are tested and approved for Porsche performance, handling and safety characteristics.

Michelin also lists other manufacturer markings, such as:

• Ferrari: K1, K2, K3
• Porsche: N markings
• Mercedes-AMG: MO1, MO2, MO1-A
• Audi: AO, AO1, AO2, AOE
• BMW: star marking

These markings help identify tyres developed for specific vehicle manufacturers.

Why You Should Not Mix Random Ferrari Tyres

On a Ferrari, mixing different tyre specifications can create problems.

For example, using a non-K tyre on one axle and a Ferrari K-marked tyre on the other may change the balance of the car.

Possible issues include:

• less predictable cornering
• different warm-up behaviour
• traction control intervention
• reduced stability under braking
• uneven grip balance front to rear

For staggered Ferrari setups, matching the correct front and rear tyre specification is especially important.

Ferrari Tyre Replacement in Adelaide

If you are replacing tyres on a Ferrari in Adelaide, the most important questions are:

• Is the tyre the correct size?
• Is the tyre the correct load and speed rating?
• Does it carry the correct Ferrari OE marking?
• Is the front and rear setup properly matched?
• Is the workshop experienced with high-performance vehicles?

Autosport Tyre World can help Ferrari owners choose and fit the correct Michelin performance tyres, including Michelin Pilot Sport Cup 2 and Ferrari-specific K-marked options where available.

Final Thoughts

For a Ferrari, tyres are part of the performance system.

A Michelin Cup 2 K1 is not just a tyre that fits the wheel. It is a Ferrari-specific tyre designed to support the way the car steers, brakes, grips and responds.

If your Ferrari uses 245/35R20 front and 305/30R20 rear tyres, always check whether the correct Ferrari marking is required before replacing them.

Shop Michelin CUP2 options:
https://autostw.com.au/search?type=product&q=CUP2

FAQ

What does K1 mean on Michelin Ferrari tyres?

K1 means the tyre is a Ferrari-specific OE-marked tyre developed for Ferrari applications.

What does K2 mean on Ferrari tyres?

K2 is another Ferrari OE tyre marking. It usually indicates a different Ferrari-approved specification depending on the tyre model, size and vehicle application.

What does K3 mean on Ferrari tyres?

K3 is also a Ferrari-related OE tyre marking used on selected tyre models and sizes.

Are K1, K2 and K3 tyres interchangeable?

Not always. Ferrari owners should match the correct tyre size, load rating, speed rating and OE marking for the vehicle.

What tyre size does a Ferrari 488 use?

A common Ferrari 488 setup is 245/35R20 front and 305/30R20 rear, but owners should always confirm against the vehicle placard or manufacturer specification.

Is Michelin Pilot Sport Cup 2 K1 good for Ferrari?

Yes. Michelin Pilot Sport Cup 2 K1 is a Ferrari-specific performance tyre designed for high grip and precise handling.

Can I use normal Michelin Cup 2 instead of Cup 2 K1?

It may physically fit, but it may not deliver the same Ferrari-specific tuning. For best results, use the correct OE-marked tyre where required.

Where can I buy Ferrari tyres in Adelaide?

Autosport Tyre World can supply and fit Ferrari performance tyres, including Michelin CUP2 options and Ferrari-specific K-marked tyres where available.

TYREPLUS Magill | Autosport Tyre World Magill

647 Magill Road, Magill SA 5072
Phone: 0452 641 023