Introduction of the MICHELIN Primacy 5

By renewing its Primacy range, MICHELIN has not just settled for a facelift or a simple marketing exercise.
The MICHELIN Primacy 5 stands out as one of the most accomplished developments in the segment
upmarket tourism of recent years.

This tyre has been developed to meet – and even anticipate – the demands of the road of tomorrow:

• A measurable security, including worn tyre,
• A expected service life of +18 %,
• A superior comfort and a reduced noise level,
• A total compatibility with modern vehicles petrol and diesel, hybrid and electric.

To achieve this, MICHELIN has invested four years of research and development, mobilised several
European testing centres and introduces technologies previously reserved for more specialised tyres.

Priority 1: Safety – consistent performance even after 30,000 km

One of the major challenges in the tyre industry is maintaining performance as wear progresses. On this point,
MICHELIN is one of the few manufacturers to officially communicate the results
worn tyre vs new tyre.

A sustained-release sculpture

The engineers have completely reworked the tread pattern of the Primacy 5 to ensure evacuation
of water effective even at half-wear:

• optimised groove depth,
• revised opening angles,
• block stiffness adjusted,
• recalibrated lamellae size and frequency.

Result: the MICHELIN Primacy 5 remains ranked “A on wet ground even after wear and tear
significant, which is a real achievement in the touring tyre category.

Maintenance of braking distances

MICHELIN imposed a particularly ambitious set of specifications on its teams:
identical braking distance between a new tyre and a worn tyre on a wet surface.

To achieve this goal, R&D has implemented:

• of new functional elastomers,
• an extremely fine control of the tyre rigidity across the transverse axis,
• A optimised solid-to-void ratio in the tread.

Thus, the Primacy 5 combines short braking distances in the wet and
performance stability over the miles, which is still very rare on the consumer market.

Axis 2: durability – +18 % in service life and more even wear

The gain of +18 % durability announced by MICHELIN does not rely on a simply hardened rubber.
The main challenge was to work on the uniformity of wear, a field in which
Few brands communicate.

Slow... and above all even wear

Thanks to new rubber compounds and to a optimised internal structure,
The MICHELIN Primacy 5:

• wears more slowly, allowing you to cover more miles before reaching the tread wear indicator
  wear and tear,
• but wears down mostly in a way more uniform, keeping one for longer
  optimal contact area with the road.

This regularity limits the irregular wear marks, improve it silence of
bearing over time and reduces vibration.

Redesigned materials

The Primacy 5 introduces a rubber compound incorporating:

• des latest-generation elastomers,
• des high-dispersion polymers,
• des optimised reinforcing agents,
• A microporous silica, facilitating deformation on contact with water.

The objective is clear: to obtain an eraser that is flexible enough for
ensure grip, but tough enough to stand the test of time.

Axis 3: a tyre designed for modern, hybrid and electric vehicles

The vehicle fleet is evolving: cars are becoming heavier, more powerful and quieter.
MICHELIN took this transformation into account right from the start of the Primacy 5's development.

Management of the high torque of electric vehicles

Electric vehicles deliver a snap couple, capable of premature wear
unsuitable tyres. To meet this constraint, MICHELIN has reinforced:

• the stiffness of the belt,
• the tread-casing interface,
• the skin friction resistance.

The Primacy 5 thus offers a best wear resistance on electric vehicles while
now its safety and comfort performance.

Inner silence: a comprehensive acoustic approach

Because an electric motor masks no extraneous noise, MICHELIN has studied in-depth the
rolling noise reduction du Primacy 5 translates to: of the Primacy 5

• des repositioned shoulder blocks,
• A absorbent internal geometry,
• A sound frequency optimisation produced by the tyre.

Result: an estimated interior noise reduction of -1.5 to -2 dB regarding the generation
previous, for a quieter and more comfortable ride.

Reduced rolling resistance

The Primacy 5 features a reduced rolling resistance by approximately 5 %.
In practice, this enables:

• to increase the’electric vehicle range,
• or from reduce consumption petrol and hybrid vehicles.

A brand new development process for a car tyre

MICHELIN applied to the Primacy 5 a unprecedented specifications for a passenger car tyre, articulated
around intensive testing and advanced modelling.

1. Real-world testing over 25,000 km

The tyre was subjected to long-distance running under varied conditions:
Northern Europe, Mediterranean, simulations and road tests. Objective: to validate his behaviour
every day, whatever the conditions.

2. Validation on reference electric vehicles

The Primacy 5 has been tested on several iconic electric car models:

• Tesla Model 3,
• Hyundai Ioniq 5,
• BMW iX1.

These tests made it possible to optimise the carcass and the apportionment of service charges
for heavy and powerful vehicles.

3. Dedicated “extreme rain” test centre

Thanks to its test tracks, notably the Ladoux Centre, MICHELIN validated the
Primacy 5 stability on saturated roads at high speed. The objective: to maintain an excellent
vehicle control even in heavy rain.

4. Advanced numerical modelling

Even before the first physical prototype, the Primacy 5 was “driven” thousands of times in simulation.
These digital models have made it possible to optimise:

• the’internal layer thickness,
• the lateral stiffness,
• a dynamic behaviour in a bend.

MICHELIN Primacy 4 / 4+ vs Primacy 5: what are the actual improvements?

The Primacy 5 does not claim to be revolutionary. It is a tyre maturation technique who is marking
the last flaws of the previous generation while improving every criterion that matters to the motorist.

A tyre in tune with the MICHELIN philosophy

The MICHELIN Primacy 5 is neither the sportiest tyre nor the most spectacular from a marketing perspective.
However, it is a tyre that strive for excellence every day, for the vast majority of
drivers.

He embodies three strong MICHELIN values:

• Measurable security :
  rigorous testing, controlled wear, numerical data rather than mere promises.
• Useful sustainability“ :
  more kilometres, but also even wear, less waste and a greener life cycle.
• Technological elegance :
  an internal sophistication that isn't necessarily visible, but which you can feel behind the wheel.

Conclusion: who is the MICHELIN Primacy 5 designed for?

With the Primacy 5, MICHELIN offers a premium passenger car tyre that excels where it truly matters:

• A impeccable stability in the rain,
• A very slow and even wear,
• A silence and comfort premium grade,
• des consistent performances even after tens of thousands of kilometres,
• A total compatibility with modern vehicles, including electric ones,
• A reduction in consumption or one increase in autonomy.

It’s not a flash tyre, but a model of’homogeneity.
Simple to use, extraordinary in its design, it establishes itself as one of the best
passenger car tyres of its generation for demanding everyday use.

FAQ MICHELIN Primacy 5