Michelin 325/30 R21 108Y Pilot Super Sport * 2024

Michelin Pilot Super Sport * 325/30 R21 108Y is an ultra-high-performance summer tyre designed for compatible high-performance passenger cars requiring a 21-inch fitment and BMW * approval. This exact configuration uses a 325 mm section width, 30-series profile and 21-inch rim, with a 108Y XL service description. Load index 108 corresponds to a maximum load of 1000 kg per tyre, while the Y speed rating allows speeds up to 300 km/h under the specified operating conditions.

Tread Design and Steering Response

The Pilot Super Sport uses a performance-oriented asymmetric tread design developed for precise steering response and stable road contact. The very low 30-series profile supports direct steering feedback and quick directional response, while the XL construction provides additional load capacity for high-performance vehicle applications.

Dry-Road Handling and Cornering

The exceptionally wide 325 mm footprint provides a substantial contact area for strong dry-road grip, lateral stability and confident cornering. The low-profile construction is optimized for steering precision and road feedback, making this configuration particularly suited to performance-focused driving. Actual handling depends on vehicle design, alignment, inflation pressure, road surface and driving style.

Wet-Road Performance

The tread pattern incorporates longitudinal grooves and water-management features designed to help evacuate water from the contact patch. These features support controlled wet-road traction and braking, although actual performance depends on temperature, tread condition, tyre pressure, road surface and vehicle setup.

High-Speed Stability

The 108Y service description provides a maximum rated speed of 300 km/h, subject to the applicable load, inflation pressure and vehicle manufacturer's requirements. The reinforced performance construction is designed to maintain stable road contact and predictable steering response during high-speed driving.

Braking Performance

The Pilot Super Sport is engineered for demanding road use, with an emphasis on dry braking, traction and cornering control. Its performance-oriented tread and compound are designed to provide consistent contact during high-performance driving. Actual braking distance varies with vehicle condition, speed, tyre pressure, road surface and weather.

Comfort and Everyday Driving

The 30-series profile prioritizes handling precision, steering response and road feedback rather than maximum ride cushioning. The wide tread and performance-focused construction are best suited to vehicles where high-speed stability and dynamic handling are important. Actual ride comfort and road noise depend on the vehicle, suspension, tyre pressure and road surface.

Seasonal Performance

The Michelin Pilot Super Sport is a summer performance tyre intended for warm-weather paved-road driving. It is not designed as a dedicated winter tyre and should be fitted only where the vehicle manufacturer approves this size and service description.

Load Capacity and Speed Rating

The 108 load index corresponds to a maximum load of 1000 kg per tyre. The Y speed rating corresponds to a maximum rated speed of 300 km/h. This exact application is marked XL and carries the * marking associated with BMW original-equipment approval.

Who Should Consider This Tyre?

Michelin Pilot Super Sport * 325/30 R21 108Y is suitable for compatible high-performance passenger cars requiring this exact fitment and BMW * approval. It is particularly suited to drivers seeking precise steering, strong dry-road grip, confident cornering, wet-road control and stable high-speed performance.