Wire bead, SafetySystem Breaker, for E-bikes up to 25 km/h, 3/180 TPI Updated tread with emphasis on functionality, sportiness, and safety. Featuring 3-dimensional tread grooves and a special sipe structure for significantly more grip. The proven SafetySystem Breaker puncture protection and reflective strips ensure safety, Safety Level 4 ContactThe "Contact" by CONTINENTAL is a versatile tire for riding on asphalt, cobblestones, gravel, and all surfaces encountered in daily life. Thanks to its smooth central tread strip, it offers a comfortable ride, and with its lateral sipe structure, it provides additional safety.The "SafetySystem Breaker," a Kevlar-reinforced, highly robust nylon fabric, offers advanced protection against punctures and cuts when riding through the city. With its features, the "Contact" meets the standard for use on e-bikes. ETRTO 37-622 Features reflective, for E-bikes up to 25 km/h Main color black Area of use city / trekking TPI / EPI 3x 180 Type/kind Article Version wire bead Wheel size 28 "