Kumho 275/45 R21 110Y Ecsta PS71 2024

Kumho Ecsta PS71 275/45 R21 110Y XL is a high-performance summer SUV tyre designed for compatible vehicles requiring a 21-inch fitment. This configuration features a 275 mm section width, 45-series profile and 21-inch rim, with a 110Y XL service description. Load index 110 corresponds to a maximum load of 1060 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 Ecsta PS71 uses an asymmetric tread pattern developed to support responsive steering and stable road contact. Its tread layout is designed to maintain controlled handling during straight-line driving, lane changes and cornering, making it well suited to performance-oriented SUV applications.

Dry-Road Handling and Cornering

The 275 mm section width provides a broad contact area, while the 45-series profile supports direct steering response and controlled cornering. The reinforced XL construction provides additional load capacity for vehicles approved for this specific tyre specification.

Wet-Road Performance

The tread incorporates four wide longitudinal grooves designed to evacuate water from the contact area efficiently. The exact 275/45 R21 110Y XL configuration carries an EU wet-grip rating of A, indicating a strong wet-road braking classification under the applicable EU tyre-label testing procedure.

High-Speed Stability and Braking

The Y speed rating provides a rated speed capability of up to 300 km/h when the tyre is operated within its specified load and inflation conditions. The tread and reinforced construction are designed to support stable road contact during higher-speed driving, while actual braking performance depends on the vehicle, road surface, tyre condition, inflation pressure and driving conditions.

Comfort and Road Noise

The Ecsta PS71 is designed to balance performance-oriented handling with everyday road comfort. The exact 275/45 R21 110Y XL configuration is listed with an external rolling noise level of 73 dB and noise class B under the EU tyre-label system.

Seasonal Performance

The Ecsta PS71 SUV 275/45 R21 110Y XL is classified as a summer tyre. It is intended primarily for paved-road driving and performance-oriented SUV use rather than winter or severe-snow conditions.

Load Capacity and Speed Rating

The 110 load index corresponds to a maximum load of 1060 kg per tyre. The Y speed rating corresponds to a maximum rated speed of 300 km/h, subject to the applicable load, inflation pressure and vehicle manufacturer's requirements.

Who Should Consider This Tyre?

Kumho Ecsta PS71 275/45 R21 110Y XL is suitable for compatible SUVs and passenger vehicles requiring this exact 21-inch fitment. It is particularly suited to drivers seeking responsive steering, dry-road handling, strong wet-road grip and stable high-speed road performance.