This lightweight tyre features Schwalbe's Addix SpeedGrip compound, which is very durable and very versatile. Part of the Evolution Line, this model is equipped with the state-of-the-art Super Ground construction. This means that you'll benefit from its additional bead-to-bear fabric for improved overall cut resistance as well as fast and smooth-rolling performance. Engineered for going the extra mile, this version is also tubeless, so you can enjoy less rolling resistance, superior grip and high puncture safety. The Special One G-One Speed is above all a promise of maximum speed! This tyre extends the range of use for every road cyclist. It rolls fast on the road, but at the same time safely on unkept cycle paths and gravel roads. • Homogeneous round knob profile for optimal rolling on the road and safe grip on gravel. Technologies: Super Ground: Combines light weight and stability. Feels comfortable in any terrain. Balanced ratio of puncture protection and smooth-rolling. For flowing trails, long rides and any terrain. Less Rolling Resistance: This crucially reduces the rolling resistance. It is even lower than in super-light competition tyres. More Grip: Lower air pressure increases the contact patch. This brings noticeable advantages in comfort, but also significantly more grip and control in critical situations and on rough trails. High Puncture Safety: Sudden loss of air through bursting tubes or valve tear off is impossible. At the same time puncture protection liquid seal punctures within a few tenths of a second whilst riding.