Michelin 355/25 R21 107Y Pilot Sport 4 2024

The Michelin Pilot Sport 4 S 355/25 R21 107Y is a highly specialised summer performance tyre for compatible high-performance sports cars. There is an important model distinction for this exact configuration: Michelin's current official size catalogue lists 355/25ZR21 (107Y) XL as the Pilot Sport 4 S, not the Pilot Sport 4. Therefore, the supplied product name has been corrected to the verified exact configuration rather than transferring specifications from the smaller Pilot Sport 4 range. The 107 load index corresponds to a maximum load of 975 kg per tyre, while the (Y) rating is for speeds above 300 km/h.

About Michelin Pilot Sport 4 S 355/25 R21 107Y

The Michelin Pilot Sport 4 S is designed for high-speed road performance and occasional track use. Michelin lists this exact 355/25ZR21 (107Y) XL size as a summer tyre and identifies it as a supersport product. For Dwbtyres customers researching this size before they buy car tyres in UAE, the unusually wide 355 mm section and extremely low 25-series profile are important characteristics. This is a specialist performance fitment rather than a general-purpose passenger-car tyre.

Dry-road handling and steering response

The very low-profile construction is intended to support precise steering and strong lateral control. A 25-series sidewall provides considerably less sidewall height than conventional passenger-car tyres, reducing the amount of sidewall flex during steering and cornering. Michelin describes the Pilot Sport 4 S around high grip, steering precision and control at high speeds. The 355 mm section also provides a substantial contact width, although the exact handling balance depends on the vehicle, suspension setup, alignment and tyre pressures.

Wet-road performance and braking

The exact Michelin fitment carries an EU tyre label rating of A for wet grip, C for fuel efficiency and B for external rolling noise, with a measured external noise value of 75 dB. These ratings apply to the documented 355/25ZR21 (107Y) XL specification. The wet-grip classification supports its suitability for wet-road performance, but it should not be interpreted as a guarantee of identical braking distances under all temperatures, surfaces or driving conditions.

Tread design and high-speed behaviour

The Pilot Sport 4 S uses a performance-oriented asymmetric tread layout with substantial longitudinal channels and separated shoulder areas. The tread is designed around maintaining a large contact area while providing channels for water evacuation. Michelin positions the model for road use and occasional track driving, so its design prioritises steering precision, grip and control rather than the long-wear characteristics normally associated with touring tyres.

Ride comfort and everyday suitability

The 355/25 R21 specification is inherently demanding on ride comfort because of its extremely short sidewall. Potholes, sharp road edges and broken surfaces can be transmitted more directly into the vehicle, and correct tyre pressure is particularly important. The 75 dB external noise figure provides a verified reference for this exact European-labelled configuration, although perceived cabin noise depends heavily on the vehicle and road surface.

Who should consider this tyre?

The Michelin Pilot Sport 4 S 355/25 R21 107Y is intended for compatible high-performance vehicles where this exact XL fitment is approved. Michelin's vehicle database, for example, identifies this size as a rear fitment for the Lamborghini Aventador S 4WD. It is therefore most appropriate for drivers prioritising high-speed control, steering precision and dry and wet grip. Buyers seeking soft ride quality, high mileage or ordinary commuting versatility should consider a less specialised tyre. The supplied 2024 year should be treated as the requested manufacturing year; the exact production-batch origin is not confirmed.

For buyers comparing Michelin Tyres, the Pilot Sport 4 S in this specification represents a very specific supersport application. The exact 355/25ZR21 (107Y) XL marking should be checked against the vehicle manufacturer's approved fitment before ordering.