Kumho 245/45 R21 104W Ecsta PS71 2024

The Kumho Ecsta PS71 245/45 R21 104W is a high-performance summer tyre developed for drivers who want a more responsive road feel without moving into a dedicated track tyre. This exact size combines a 245 mm section width, 45-series sidewall and 21-inch rim fitment with a 104 load index and W speed rating, giving it the capacity for up to 900 kg per tyre and speeds up to 270 km/h. The 45-profile sidewall also gives the tyre a relatively direct steering character, although it transmits more road texture than a taller-profile touring tyre.

Sport-focused tread design and wet-road behaviour

The Ecsta PS71 uses an asymmetric tread pattern with four wide longitudinal grooves designed to move water away from the contact area. Kumho positions the PS71 around wet braking, handling and high-speed stability, while its reinforced construction and high-dispersion silica compound are intended to support grip, wear resistance and steering precision. In the 245/45 R21 specification, the published EU label is B for wet grip and B for rolling resistance, with external rolling noise rated at 72 dB. Kumho Tyres describes the model as a performance summer tyre rather than an all-season product.

Dry-road response and cornering

On dry asphalt, the PS71 is aimed at drivers who prefer a controlled and relatively immediate response to steering inputs. Its asymmetric layout, broad contact area and more rigid outer tread blocks support cornering stability, while the low 45-profile sidewall helps reduce excessive sidewall movement during directional changes. This makes the 245/45 R21 configuration more suitable for fast road driving and confident motorway cruising than for drivers whose main priority is soft, isolated ride comfort.

Comfort, noise and everyday driving

The 21-inch wheel size and 45-series sidewall naturally give this configuration a firmer road feel than a smaller-wheel touring setup. The published 72 dB external noise figure indicates a moderate noise classification, but actual cabin noise depends heavily on the vehicle, suspension, road surface and tyre pressure. For daily city use, the PS71 can work well where steering response matters, although drivers focused primarily on comfort and long-distance refinement may prefer a more touring-oriented pattern.

Who should consider this size?

This specification is suited to passenger cars and performance-oriented applications where the vehicle manufacturer specifies 245/45 R21 104W. The 104 load index provides substantial carrying capacity, while the W rating supports high-speed road use. The PS71 is particularly relevant to drivers who regularly combine urban driving with motorway travel and want stronger wet-road confidence and sharper handling. Buyers seeking an all-season tyre, maximum ride softness or a tyre specifically designed for off-road use should consider a different category.

Buying considerations for UAE driving

In hot climates, correct inflation, alignment and regular inspection are especially important for maintaining consistent performance and tyre life. The published UTQG for the PS71 is 320 for treadwear with A traction and A temperature ratings, but these values should not be interpreted as a guaranteed mileage figure. Dwbtyres buyers looking to buy car tyres in UAE should also confirm that the vehicle placard and manufacturer fitment require this exact 245/45 R21 104W specification before ordering.