Rough weather? Cold? The 4S is the answer. With improved wet grip and puncture protection, this excellent folding tyre offers an unbeatable performance ride. The unique tread pattern is designed to push water out of the contact patch for maximum confidence in all weather conditions. Wet or dry, the 4S will rise to the challenge.
The tread compound, the tread pattern and its cross-sectional shape are the heart of a tyre's performance: the point of contact between the ground and the bike. The tread pattern consists of a blend of carefully selected and matched chemical components and optimized grooves that contribute significantly to the tyre's outstanding performance. Made from Pirelli's innovative SmartNET Silica with ICS and FGD techniques, it provides all-round top performance.
It was developed on the basis of Pirelli's vast experience in motorsport, on four and two wheels, on the road and off-road. The Pirelli SmartNET Silica is a groundbreaking innovation in bicycle tyre rubber compound technology: Thanks to the construction of nano-rods and the resulting formation of a mesh, combined with the silica's inherent chemical affinity with water, it overcomes the traditional compulsion to compromise in rubber compounds and achieves high performance in contrasting properties such as rolling and wet grip, mileage and puncture protection.
Developed on a 127 tpi carcass, Pirelli's tyre features functionally optimised tread grooves and ideal contour forming technology: the carcass fabric is designed to fit the contour and provide optimum ground pressure, while different centre and sidewall radii guarantee controlled and specific deformation of the tyre at different speeds and inclination angles. Added to this is the flash-like groove design, which is based on our experience in the development of motorcycle racing tyres. It provides optimum water drainage at different angles and forces, but also keeps noise levels low and ensures short warm-up times. This guarantees immediate, maximum grip. Point.
A belt of aramid fibres under the tread protects against sharp-edged objects: Aramid is a fibre with strong resistance to cutting and abrasion. Its low weight and flexibility also contribute to rolling efficiency and overall performance of the tyre.